./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor957657600 <...> Warning: Permanently added '10.128.0.71' (ED25519) to the list of known hosts. execve("./syz-executor957657600", ["./syz-executor957657600"], 0x7ffee305ba30 /* 10 vars */) = 0 brk(NULL) = 0x55556c203000 brk(0x55556c203d40) = 0x55556c203d40 arch_prctl(ARCH_SET_FS, 0x55556c2033c0) = 0 set_tid_address(0x55556c203690) = 5866 set_robust_list(0x55556c2036a0, 24) = 0 rseq(0x55556c203ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor957657600", 4096) = 27 getrandom("\x6b\x7a\xed\xe4\x7e\xbe\x28\xf6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556c203d40 brk(0x55556c224d40) = 0x55556c224d40 brk(0x55556c225000) = 0x55556c225000 mprotect(0x7fb724a4c000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5867 ./strace-static-x86_64: Process 5867 attached [pid 5866] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 [pid 5867] set_robust_list(0x55556c2036a0, 24 [pid 5866] write(3, "10000000000", 11 [pid 5867] <... set_robust_list resumed>) = 0 [pid 5866] <... write resumed>) = 11 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "20", 2) = 2 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1", 1) = 1 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "0", 1) = 1 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "0", 1) = 1 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1", 1) = 1 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "100", 3) = 3 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "0", 1) = 1 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "0", 1) = 1 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "7 4 1 3", 7) = 7 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1", 1) = 1 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1", 1) = 1 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "0", 1) = 1 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "5867", 4) = 4 [pid 5866] close(3) = 0 [pid 5866] kill(5867, SIGKILL) = 0 [pid 5867] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5867, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5868 attached , child_tidptr=0x55556c203690) = 5868 [pid 5868] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5866] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ./strace-static-x86_64: Process 5869 attached [pid 5869] set_robust_list(0x55556c2036a0, 24 [pid 5868] ioctl(3, LOOP_CLR_FD [pid 5866] <... clone resumed>, child_tidptr=0x55556c203690) = 5869 [pid 5869] <... set_robust_list resumed>) = 0 [pid 5866] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5868] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5868] close(3./strace-static-x86_64: Process 5870 attached [pid 5869] <... openat resumed>) = 3 [pid 5868] <... close resumed>) = 0 [pid 5866] <... clone resumed>, child_tidptr=0x55556c203690) = 5870 [pid 5866] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5870] set_robust_list(0x55556c2036a0, 24./strace-static-x86_64: Process 5871 attached ) = 0 [pid 5870] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5871] set_robust_list(0x55556c2036a0, 24 [pid 5870] <... openat resumed>) = 3 [pid 5871] <... set_robust_list resumed>) = 0 [pid 5871] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5866] <... clone resumed>, child_tidptr=0x55556c203690) = 5871 [pid 5866] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5870] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5869] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5872 attached [pid 5871] <... openat resumed>) = 3 [pid 5869] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] close(3 [pid 5871] ioctl(3, LOOP_CLR_FD [pid 5870] close(3 [pid 5871] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5870] <... close resumed>) = 0 [pid 5871] close(3 [pid 5870] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5873 attached [pid 5872] set_robust_list(0x55556c2036a0, 24 [pid 5871] <... close resumed>) = 0 [pid 5869] <... close resumed>) = 0 ./strace-static-x86_64: Process 5874 attached [pid 5873] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... set_robust_list resumed>) = 0 [pid 5871] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 5873 ./strace-static-x86_64: Process 5875 attached [pid 5866] <... clone resumed>, child_tidptr=0x55556c203690) = 5872 [pid 5866] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] set_robust_list(0x55556c2036a0, 24 [pid 5874] set_robust_list(0x55556c2036a0, 24 [pid 5873] <... set_robust_list resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 5875 ./strace-static-x86_64: Process 5877 attached [pid 5874] <... set_robust_list resumed>) = 0 [pid 5875] <... set_robust_list resumed>) = 0 [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5870] <... clone resumed>, child_tidptr=0x55556c203690) = 5874 [pid 5877] set_robust_list(0x55556c2036a0, 24 [pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] <... prctl resumed>) = 0 [pid 5872] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5876 attached [pid 5877] <... set_robust_list resumed>) = 0 [pid 5875] <... prctl resumed>) = 0 [pid 5874] setpgid(0, 0 [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5866] <... clone resumed>, child_tidptr=0x55556c203690) = 5877 [pid 5877] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5876] set_robust_list(0x55556c2036a0, 24 [pid 5875] setpgid(0, 0 [pid 5874] <... setpgid resumed>) = 0 [pid 5873] <... prctl resumed>) = 0 [pid 5872] ioctl(3, LOOP_CLR_FD [pid 5871] <... clone resumed>, child_tidptr=0x55556c203690) = 5876 [pid 5877] <... openat resumed>) = 3 [pid 5876] <... set_robust_list resumed>) = 0 [pid 5875] <... setpgid resumed>) = 0 [pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5873] setpgid(0, 0 [pid 5872] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5877] ioctl(3, LOOP_CLR_FD [pid 5876] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] <... openat resumed>) = 3 [pid 5873] <... setpgid resumed>) = 0 [pid 5872] close(3 [pid 5876] <... prctl resumed>) = 0 [pid 5874] write(3, "1000", 4 [pid 5872] <... close resumed>) = 0 [pid 5877] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5876] setpgid(0, 0 [pid 5875] <... openat resumed>) = 3 [pid 5874] <... write resumed>) = 4 [pid 5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5877] close(3) = 0 [pid 5876] <... setpgid resumed>) = 0 [pid 5875] write(3, "1000", 4 [pid 5874] close(3 [pid 5876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] <... write resumed>) = 4 [pid 5874] <... close resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program [pid 5876] <... openat resumed>) = 3 [pid 5875] close(3 [pid 5874] write(1, "executing program\n", 18) = 18 [pid 5875] <... close resumed>) = 0 [pid 5874] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] write(1, "executing program\n", 18 [pid 5874] <... futex resumed>) = 0 executing program ./strace-static-x86_64: Process 5878 attached [pid 5874] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5873] <... openat resumed>) = 3 [pid 5876] write(3, "1000", 4 [pid 5875] <... write resumed>) = 18 [pid 5876] <... write resumed>) = 4 [pid 5875] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5874] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5876] close(3 [pid 5875] <... futex resumed>) = 0 [pid 5874] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5876] <... close resumed>) = 0 [pid 5875] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5874] <... rt_sigprocmask resumed>NULL, 8) = 0 executing program [pid 5876] write(1, "executing program\n", 18 [pid 5875] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5876] <... write resumed>) = 18 [pid 5875] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5874] <... mmap resumed>) = 0x7fb72495a000 [pid 5876] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5876] <... futex resumed>) = 0 [pid 5875] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5874] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 5879 attached [pid 5878] set_robust_list(0x55556c2036a0, 24 [pid 5876] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5875] <... mmap resumed>) = 0x7fb72495a000 [pid 5874] <... mprotect resumed>) = 0 [pid 5873] write(3, "1000", 4 [pid 5879] set_robust_list(0x55556c2036a0, 24 [pid 5878] <... set_robust_list resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x55556c203690) = 5879 [pid 5876] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5875] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5874] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5873] <... write resumed>) = 4 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5878 [pid 5879] <... set_robust_list resumed>) = 0 [pid 5876] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5875] <... mprotect resumed>) = 0 [pid 5873] close(3 [pid 5878] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5875] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5874] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5873] <... close resumed>) = 0 [pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5878] <... prctl resumed>) = 0 [pid 5876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5879] <... prctl resumed>) = 0 [pid 5873] write(1, "executing program\n", 18executing program [pid 5879] setpgid(0, 0 [pid 5878] setpgid(0, 0 [pid 5876] <... mmap resumed>) = 0x7fb72495a000 [pid 5875] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5873] <... write resumed>) = 18 [pid 5879] <... setpgid resumed>) = 0 [pid 5878] <... setpgid resumed>) = 0 [pid 5876] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5875] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5873] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5880 attached [pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5880] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5873] <... futex resumed>) = 0 [pid 5879] <... openat resumed>) = 3 [pid 5880] <... rseq resumed>) = 0 [pid 5879] write(3, "1000", 4 [pid 5873] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5880] set_robust_list(0x7fb72497a9a0, 24 [pid 5879] <... write resumed>) = 4 [pid 5873] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5880] <... set_robust_list resumed>) = 0 [pid 5879] close(3 [pid 5878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] <... mprotect resumed>) = 0 [pid 5873] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5882 attached [pid 5880] rt_sigprocmask(SIG_SETMASK, [], [pid 5879] <... close resumed>) = 0 [pid 5878] <... openat resumed>) = 3 [pid 5876] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5874] <... clone3 resumed> => {parent_tid=[5880]}, 88) = 5880 [pid 5873] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5882] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 executing program [pid 5880] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5879] write(1, "executing program\n", 18 [pid 5878] write(3, "1000", 4 [pid 5876] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5875] <... clone3 resumed> => {parent_tid=[5882]}, 88) = 5882 [pid 5874] rt_sigprocmask(SIG_SETMASK, [], [pid 5873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5882] <... rseq resumed>) = 0 [pid 5880] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5879] <... write resumed>) = 18 [pid 5878] <... write resumed>) = 4 [pid 5876] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5882] set_robust_list(0x7fb72497a9a0, 24 [pid 5873] <... mmap resumed>) = 0x7fb72495a000 ./strace-static-x86_64: Process 5883 attached [pid 5882] <... set_robust_list resumed>) = 0 [pid 5879] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5878] close(3 [pid 5875] rt_sigprocmask(SIG_SETMASK, [], [pid 5874] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5873] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5883] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5882] rt_sigprocmask(SIG_SETMASK, [], [pid 5879] <... futex resumed>) = 0 [pid 5878] <... close resumed>) = 0 [pid 5876] <... clone3 resumed> => {parent_tid=[5883]}, 88) = 5883 [pid 5875] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5874] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5873] <... mprotect resumed>) = 0 [pid 5883] <... rseq resumed>) = 0 [pid 5880] <... futex resumed>) = 0 [pid 5879] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5878] write(1, "executing program\n", 18 [pid 5876] rt_sigprocmask(SIG_SETMASK, [], executing program [pid 5875] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5874] <... futex resumed>) = 1 [pid 5883] set_robust_list(0x7fb72497a9a0, 24 [pid 5882] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5880] memfd_create("syzkaller", 0 [pid 5879] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5878] <... write resumed>) = 18 [pid 5876] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5875] <... futex resumed>) = 0 [pid 5874] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5873] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5883] <... set_robust_list resumed>) = 0 [pid 5880] <... memfd_create resumed>) = 3 [pid 5879] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5878] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5876] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5883] rt_sigprocmask(SIG_SETMASK, [], [pid 5882] memfd_create("syzkaller", 0 [pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5879] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5878] <... futex resumed>) = 0 [pid 5876] <... futex resumed>) = 0 [pid 5873] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5883] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5882] <... memfd_create resumed>) = 3 [pid 5880] <... mmap resumed>) = 0x7fb71c400000 [pid 5879] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5878] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5876] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5873] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5883] memfd_create("syzkaller", 0 [pid 5882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5879] <... mmap resumed>) = 0x7fb72495a000 [pid 5878] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5882] <... mmap resumed>) = 0x7fb71c400000 [pid 5878] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5879] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5878] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5879] <... mprotect resumed>) = 0 [pid 5878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5879] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5878] <... mmap resumed>) = 0x7fb72495a000 [pid 5878] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 5884 attached ) = 0 [pid 5879] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5878] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5884] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5884] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5883] <... memfd_create resumed>) = 3 [pid 5879] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5878] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5873] <... clone3 resumed> => {parent_tid=[5884]}, 88) = 5884 [pid 5873] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5878] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5873] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5883] <... mmap resumed>) = 0x7fb71c400000 [pid 5873] <... futex resumed>) = 0 [pid 5884] rt_sigprocmask(SIG_SETMASK, [], [pid 5873] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5884] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5886 attached [pid 5884] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5885 attached [pid 5885] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5884] <... memfd_create resumed>) = 3 [pid 5885] <... rseq resumed>) = 0 [pid 5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5885] set_robust_list(0x7fb72497a9a0, 24 [pid 5884] <... mmap resumed>) = 0x7fb71c400000 [pid 5886] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5885] <... set_robust_list resumed>) = 0 [pid 5879] <... clone3 resumed> => {parent_tid=[5886]}, 88) = 5886 [pid 5878] <... clone3 resumed> => {parent_tid=[5885]}, 88) = 5885 [pid 5885] rt_sigprocmask(SIG_SETMASK, [], [pid 5886] <... rseq resumed>) = 0 [pid 5885] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5879] rt_sigprocmask(SIG_SETMASK, [], [pid 5878] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5886] set_robust_list(0x7fb72497a9a0, 24 [pid 5878] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5885] memfd_create("syzkaller", 0 [pid 5879] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5885] <... memfd_create resumed>) = 3 [pid 5879] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5886] <... set_robust_list resumed>) = 0 [pid 5879] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5878] <... futex resumed>) = 0 [pid 5878] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5886] rt_sigprocmask(SIG_SETMASK, [], [pid 5885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5886] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5886] memfd_create("syzkaller", 0) = 3 [pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5883] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5882] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5884] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5880] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5885] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5886] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5882] <... write resumed>) = 16777216 [pid 5884] <... write resumed>) = 16777216 [pid 5883] <... write resumed>) = 16777216 [pid 5882] munmap(0x7fb71c400000, 138412032 [pid 5884] munmap(0x7fb71c400000, 138412032 [pid 5883] munmap(0x7fb71c400000, 138412032) = 0 [pid 5884] <... munmap resumed>) = 0 [pid 5883] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5884] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5883] <... openat resumed>) = 4 [pid 5880] <... write resumed>) = 16777216 [pid 5883] ioctl(4, LOOP_SET_FD, 3 [pid 5882] <... munmap resumed>) = 0 [pid 5882] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5886] <... write resumed>) = 16777216 [pid 5884] <... openat resumed>) = 4 [pid 5880] munmap(0x7fb71c400000, 138412032 [pid 5885] <... write resumed>) = 16777216 [pid 5883] <... ioctl resumed>) = 0 [pid 5886] munmap(0x7fb71c400000, 138412032 [pid 5885] munmap(0x7fb71c400000, 138412032 [pid 5884] ioctl(4, LOOP_SET_FD, 3 [pid 5883] close(3 [pid 5882] ioctl(4, LOOP_SET_FD, 3 [pid 5883] <... close resumed>) = 0 [pid 5883] close(4) = 0 [pid 5883] mkdir("./file1", 0777) = 0 [pid 5883] mount("/dev/loop3", "./file1", "jfs", 0, "" [pid 5884] <... ioctl resumed>) = 0 [pid 5882] <... ioctl resumed>) = 0 [pid 5882] close(3) = 0 [pid 5882] close(4) = 0 [pid 5882] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 5884] close(3) = 0 [pid 5884] close(4 [pid 5882] mount("/dev/loop1", "./file1", "jfs", 0, "" [pid 5884] <... close resumed>) = 0 [pid 5884] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 5884] mount("/dev/loop0", "./file1", "jfs", 0, "" [pid 5885] <... munmap resumed>) = 0 [ 185.280477][ T5883] loop3: detected capacity change from 0 to 32768 [ 185.300098][ T5882] loop1: detected capacity change from 0 to 32768 [ 185.310737][ T5884] loop0: detected capacity change from 0 to 32768 [pid 5885] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5885] ioctl(4, LOOP_SET_FD, 3 [pid 5882] <... mount resumed>) = 0 [pid 5882] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5882] chdir("./file1") = 0 [pid 5882] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5882] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5882] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5875] <... futex resumed>) = 0 [pid 5875] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5882] <... futex resumed>) = 0 [pid 5882] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5875] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5885] <... ioctl resumed>) = 0 [pid 5880] <... munmap resumed>) = 0 [pid 5880] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5885] close(3) = 0 [ 185.355353][ T5885] loop4: detected capacity change from 0 to 32768 [ 185.375536][ T5882] JFS: metapage_get_blocks failed [ 185.383512][ T5880] loop2: detected capacity change from 0 to 32768 [ 185.390320][ T5882] ERROR: (device loop1): release_metapage: metapage_write_one() failed [ 185.390320][ T5882] [pid 5880] ioctl(4, LOOP_SET_FD, 3 [pid 5886] <... munmap resumed>) = 0 [pid 5885] close(4 [pid 5884] <... mount resumed>) = 0 [pid 5880] <... ioctl resumed>) = 0 [pid 5885] <... close resumed>) = 0 [pid 5886] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5884] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5886] <... openat resumed>) = 4 [pid 5884] <... openat resumed>) = 3 [pid 5886] ioctl(4, LOOP_SET_FD, 3 [pid 5884] chdir("./file1" [pid 5886] <... ioctl resumed>) = 0 [pid 5885] mkdir("./file1", 0777 [pid 5884] <... chdir resumed>) = 0 [pid 5883] <... mount resumed>) = 0 [pid 5880] close(3 [pid 5875] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5885] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5883] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5880] <... close resumed>) = 0 [pid 5875] futex(0x7fb724a525fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5885] mount("/dev/loop4", "./file1", "jfs", 0, "" [pid 5883] <... openat resumed>) = 3 [pid 5875] <... futex resumed>) = 0 [pid 5880] close(4 [pid 5884] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5880] <... close resumed>) = 0 [pid 5875] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5884] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5880] mkdir("./file1", 0777 [pid 5875] <... mmap resumed>) = 0x7fb724939000 [pid 5883] chdir("./file1" [pid 5884] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5883] <... chdir resumed>) = 0 [pid 5880] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5875] mprotect(0x7fb72493a000, 131072, PROT_READ|PROT_WRITE [pid 5884] <... futex resumed>) = 1 [pid 5883] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5880] mount("/dev/loop2", "./file1", "jfs", 0, "" [pid 5875] <... mprotect resumed>) = 0 [pid 5873] <... futex resumed>) = 0 [pid 5884] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5875] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5873] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5883] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5873] <... futex resumed>) = 0 [pid 5883] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] <... mount resumed>) = 0 [pid 5875] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5873] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5883] <... futex resumed>) = 1 [pid 5880] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5875] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb724959990, parent_tid=0x7fb724959990, exit_signal=0, stack=0x7fb724939000, stack_size=0x20300, tls=0x7fb7249596c0} [pid 5883] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5880] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5890 attached [pid 5880] chdir("./file1" [pid 5890] rseq(0x7fb724959fe0, 0x20, 0, 0x53053053 [pid 5886] close(3 [pid 5882] <... lsetxattr resumed>) = 0 [pid 5880] <... chdir resumed>) = 0 [pid 5876] <... futex resumed>) = 0 [pid 5875] <... clone3 resumed> => {parent_tid=[5890]}, 88) = 5890 [pid 5890] <... rseq resumed>) = 0 [pid 5886] <... close resumed>) = 0 [pid 5880] openat(AT_FDCWD, "/dev/loop2", O_RDWR [ 185.410972][ T5882] ERROR: (device loop1): remounting filesystem as read-only [ 185.422964][ T5886] loop5: detected capacity change from 0 to 32768 [ 185.441377][ T5884] JFS: metapage_get_blocks failed [ 185.452360][ T5884] ERROR: (device loop0): release_metapage: metapage_write_one() failed [pid 5876] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] rt_sigprocmask(SIG_SETMASK, [], [pid 5890] set_robust_list(0x7fb7249599a0, 24 [pid 5886] close(4 [pid 5885] <... mount resumed>) = 0 [pid 5883] <... futex resumed>) = 0 [pid 5882] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5876] <... futex resumed>) = 1 [pid 5890] <... set_robust_list resumed>) = 0 [pid 5885] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5883] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5880] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5890] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5885] <... openat resumed>) = 3 [pid 5880] <... futex resumed>) = 1 [pid 5875] futex(0x7fb724a525f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5885] chdir("./file1" [pid 5880] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5875] <... futex resumed>) = 0 [pid 5890] <... lsetxattr resumed>) = -1 EROFS (Read-only file system) [pid 5886] <... close resumed>) = 0 [pid 5885] <... chdir resumed>) = 0 [pid 5876] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5886] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 5886] mount("/dev/loop5", "./file1", "jfs", 0, "" [pid 5882] <... futex resumed>) = 0 [pid 5874] <... futex resumed>) = 0 [pid 5882] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5874] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5874] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5890] futex(0x7fb724a525fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5885] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5880] <... futex resumed>) = 0 [pid 5875] futex(0x7fb724a525fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5890] <... futex resumed>) = 0 [pid 5890] futex(0x7fb724a525f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5885] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5880] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5885] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] exit_group(0 [pid 5890] <... futex resumed>) = ? [pid 5882] <... futex resumed>) = ? [pid 5875] <... exit_group resumed>) = ? [pid 5885] <... futex resumed>) = 1 [pid 5878] <... futex resumed>) = 0 [pid 5878] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5890] +++ exited with 0 +++ [pid 5882] +++ exited with 0 +++ [pid 5878] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5873] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5885] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5873] futex(0x7fb724a525fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5875] +++ exited with 0 +++ [pid 5873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb724939000 [pid 5873] mprotect(0x7fb72493a000, 131072, PROT_READ|PROT_WRITE [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5875, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 5873] <... mprotect resumed>) = 0 [ 185.452360][ T5884] [ 185.479034][ T5883] JFS: metapage_get_blocks failed [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5873] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5873] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb724959990, parent_tid=0x7fb724959990, exit_signal=0, stack=0x7fb724939000, stack_size=0x20300, tls=0x7fb7249596c0}./strace-static-x86_64: Process 5892 attached [pid 5892] rseq(0x7fb724959fe0, 0x20, 0, 0x53053053) = 0 [pid 5873] <... clone3 resumed> => {parent_tid=[5892]}, 88) = 5892 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5892] set_robust_list(0x7fb7249599a0, 24 [pid 5886] <... mount resumed>) = 0 [pid 5873] rt_sigprocmask(SIG_SETMASK, [], [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5892] <... set_robust_list resumed>) = 0 [pid 5886] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5873] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5892] rt_sigprocmask(SIG_SETMASK, [], [pid 5886] <... openat resumed>) = 3 [pid 5892] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5886] chdir("./file1" [pid 5892] futex(0x7fb724a525f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5886] <... chdir resumed>) = 0 [pid 5876] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5886] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5876] futex(0x7fb724a525fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5876] <... futex resumed>) = 0 [pid 5886] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5886] <... futex resumed>) = 1 [pid 5879] <... futex resumed>) = 0 [pid 5876] <... mmap resumed>) = 0x7fb724939000 [pid 5886] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5879] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5876] mprotect(0x7fb72493a000, 131072, PROT_READ|PROT_WRITE [pid 5873] futex(0x7fb724a525f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5879] <... futex resumed>) = 0 [pid 5876] <... mprotect resumed>) = 0 [pid 5874] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 5894 attached [pid 5892] <... futex resumed>) = 0 [pid 5879] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5876] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5874] futex(0x7fb724a525fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5873] <... futex resumed>) = 1 [ 185.505465][ T5884] ERROR: (device loop0): remounting filesystem as read-only [ 185.507519][ T5880] JFS: metapage_get_blocks failed [ 185.519965][ T5885] JFS: metapage_get_blocks failed [ 185.539263][ T5883] ERROR: (device loop3): release_metapage: metapage_write_one() failed [ 185.539263][ T5883] [ 185.539795][ T5886] JFS: metapage_get_blocks failed [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 5894 [pid 5894] set_robust_list(0x55556c2036a0, 24 [pid 5892] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5878] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5876] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5874] <... futex resumed>) = 0 [pid 5873] futex(0x7fb724a525fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5892] <... lsetxattr resumed>) = -1 EROFS (Read-only file system) [pid 5884] <... lsetxattr resumed>) = 0 [pid 5876] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb724959990, parent_tid=0x7fb724959990, exit_signal=0, stack=0x7fb724939000, stack_size=0x20300, tls=0x7fb7249596c0} [pid 5892] futex(0x7fb724a525fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5874] <... mmap resumed>) = 0x7fb724939000 [pid 5894] <... set_robust_list resumed>) = 0 [pid 5892] <... futex resumed>) = 0 [pid 5884] <... futex resumed>) = 0 [pid 5878] futex(0x7fb724a525fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5876] <... clone3 resumed> => {parent_tid=[5895]}, 88) = 5895 [pid 5874] mprotect(0x7fb72493a000, 131072, PROT_READ|PROT_WRITE [pid 5873] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5878] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5895 attached [pid 5894] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5892] futex(0x7fb724a525f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5884] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5876] rt_sigprocmask(SIG_SETMASK, [], [pid 5874] <... mprotect resumed>) = 0 [pid 5873] exit_group(0 [pid 5895] rseq(0x7fb724959fe0, 0x20, 0, 0x53053053 [pid 5878] <... mmap resumed>) = 0x7fb724939000 [pid 5873] <... exit_group resumed>) = ? [pid 5892] <... futex resumed>) = ? [pid 5884] <... futex resumed>) = ? [pid 5876] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5874] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5895] <... rseq resumed>) = 0 [pid 5894] <... prctl resumed>) = 0 [pid 5892] +++ exited with 0 +++ [pid 5878] mprotect(0x7fb72493a000, 131072, PROT_READ|PROT_WRITE [pid 5894] setpgid(0, 0 [pid 5876] futex(0x7fb724a525f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5874] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5895] set_robust_list(0x7fb7249599a0, 24 [pid 5894] <... setpgid resumed>) = 0 [pid 5878] <... mprotect resumed>) = 0 [pid 5876] <... futex resumed>) = 0 [pid 5874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb724959990, parent_tid=0x7fb724959990, exit_signal=0, stack=0x7fb724939000, stack_size=0x20300, tls=0x7fb7249596c0} [pid 5895] <... set_robust_list resumed>) = 0 [pid 5895] rt_sigprocmask(SIG_SETMASK, [], [pid 5894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5884] +++ exited with 0 +++ [pid 5879] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5878] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5876] futex(0x7fb724a525fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5873] +++ exited with 0 +++ [pid 5895] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5879] futex(0x7fb724a525fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5878] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5874] <... clone3 resumed> => {parent_tid=[5896]}, 88) = 5896 [pid 5878] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb724959990, parent_tid=0x7fb724959990, exit_signal=0, stack=0x7fb724939000, stack_size=0x20300, tls=0x7fb7249596c0}./strace-static-x86_64: Process 5897 attached ./strace-static-x86_64: Process 5896 attached [pid 5895] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5894] <... openat resumed>) = 3 [pid 5879] <... futex resumed>) = 0 [pid 5874] rt_sigprocmask(SIG_SETMASK, [], [pid 5878] <... clone3 resumed> => {parent_tid=[5897]}, 88) = 5897 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5873, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- [ 185.554148][ T5885] ERROR: (device loop4): release_metapage: metapage_write_one() failed [ 185.554148][ T5885] [ 185.574712][ T5880] ERROR: (device loop2): release_metapage: metapage_write_one() failed [ 185.574712][ T5880] [pid 5878] rt_sigprocmask(SIG_SETMASK, [], [pid 5897] rseq(0x7fb724959fe0, 0x20, 0, 0x53053053 [pid 5896] rseq(0x7fb724959fe0, 0x20, 0, 0x53053053 [pid 5894] write(3, "1000", 4 [pid 5879] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5878] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5874] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5896] <... rseq resumed>) = 0 [pid 5894] <... write resumed>) = 4 [pid 5879] <... mmap resumed>) = 0x7fb724939000 [pid 5874] futex(0x7fb724a525f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5897] <... rseq resumed>) = 0 [pid 5878] futex(0x7fb724a525f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5894] close(3 [pid 5879] mprotect(0x7fb72493a000, 131072, PROT_READ|PROT_WRITE [pid 5874] <... futex resumed>) = 0 [pid 5879] <... mprotect resumed>) = 0 [pid 5874] futex(0x7fb724a525fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5896] set_robust_list(0x7fb7249599a0, 24 [pid 5894] <... close resumed>) = 0 [pid 5879] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5896] <... set_robust_list resumed>) = 0 [pid 5894] write(1, "executing program\n", 18 [pid 5879] <... rt_sigprocmask resumed>[], 8) = 0 executing program [pid 5896] rt_sigprocmask(SIG_SETMASK, [], [pid 5894] <... write resumed>) = 18 [pid 5879] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb724959990, parent_tid=0x7fb724959990, exit_signal=0, stack=0x7fb724939000, stack_size=0x20300, tls=0x7fb7249596c0} [pid 5897] set_robust_list(0x7fb7249599a0, 24 [pid 5896] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5894] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5878] <... futex resumed>) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5878] futex(0x7fb724a525fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5899 attached ./strace-static-x86_64: Process 5898 attached [pid 5897] <... set_robust_list resumed>) = 0 [pid 5896] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5894] <... futex resumed>) = 0 [pid 5879] <... clone3 resumed> => {parent_tid=[5898]}, 88) = 5898 [pid 5894] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5879] rt_sigprocmask(SIG_SETMASK, [], [pid 5894] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5879] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5894] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5879] futex(0x7fb724a525f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5894] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5879] <... futex resumed>) = 0 [pid 5899] set_robust_list(0x55556c2036a0, 24 [pid 5898] rseq(0x7fb724959fe0, 0x20, 0, 0x53053053 [pid 5897] rt_sigprocmask(SIG_SETMASK, [], [pid 5894] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5885] <... lsetxattr resumed>) = 0 [pid 5879] futex(0x7fb724a525fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 5899 [pid 5899] <... set_robust_list resumed>) = 0 [pid 5898] <... rseq resumed>) = 0 [ 185.613636][ T5883] ERROR: (device loop3): remounting filesystem as read-only [ 185.632662][ T5885] ERROR: (device loop4): remounting filesystem as read-only [ 185.652565][ T5886] ERROR: (device loop5): release_metapage: metapage_write_one() failed [ 185.652565][ T5886] [pid 5897] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5894] <... mmap resumed>) = 0x7fb72495a000 [pid 5876] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5899] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5898] set_robust_list(0x7fb7249599a0, 24 [pid 5883] <... lsetxattr resumed>) = 0 [pid 5898] <... set_robust_list resumed>) = 0 [pid 5898] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5898] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5899] <... prctl resumed>) = 0 [pid 5897] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5894] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5883] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5874] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5899] setpgid(0, 0 [pid 5897] <... lsetxattr resumed>) = -1 EROFS (Read-only file system) [pid 5894] <... mprotect resumed>) = 0 [pid 5885] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5883] <... futex resumed>) = 0 [pid 5878] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5899] <... setpgid resumed>) = 0 [pid 5897] futex(0x7fb724a525fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5897] <... futex resumed>) = 0 [pid 5894] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5885] <... futex resumed>) = 0 [pid 5883] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5878] exit_group(0 [pid 5897] futex(0x7fb724a525f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5894] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5899] <... openat resumed>) = 3 [pid 5897] <... futex resumed>) = ? [pid 5894] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5878] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5900 attached [pid 5897] +++ exited with 0 +++ [pid 5894] <... clone3 resumed> => {parent_tid=[5900]}, 88) = 5900 [pid 5894] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5894] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5894] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5900] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5899] write(3, "1000", 4 [pid 5885] +++ exited with 0 +++ [pid 5880] <... lsetxattr resumed>) = 0 [pid 5879] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5878] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5878, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=28 /* 0.28 s */} --- [pid 5899] <... write resumed>) = 4 [pid 5880] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5900] <... rseq resumed>) = 0 [pid 5899] close(3 [pid 5880] <... futex resumed>) = 0 [pid 5900] set_robust_list(0x7fb72497a9a0, 24 [pid 5899] <... close resumed>) = 0 [pid 5880] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWRexecuting program [pid 5900] <... set_robust_list resumed>) = 0 [pid 5899] write(1, "executing program\n", 18 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5899] <... write resumed>) = 18 [pid 5900] rt_sigprocmask(SIG_SETMASK, [], [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5899] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5900] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5899] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5900] memfd_create("syzkaller", 0 [pid 5899] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5901 ./strace-static-x86_64: Process 5901 attached [pid 5900] <... memfd_create resumed>) = 3 [pid 5899] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5901] set_robust_list(0x55556c2036a0, 24 [pid 5900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5901] <... set_robust_list resumed>) = 0 [pid 5900] <... mmap resumed>) = 0x7fb71c400000 [ 185.664988][ T5880] ERROR: (device loop2): remounting filesystem as read-only [pid 5901] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5899] <... mmap resumed>) = 0x7fb72495a000 [pid 5901] <... prctl resumed>) = 0 [pid 5901] setpgid(0, 0) = 0 [pid 5901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5899] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5901] write(3, "1000", 4) = 4 executing program [pid 5901] close(3 [pid 5899] <... mprotect resumed>) = 0 [pid 5901] <... close resumed>) = 0 [pid 5901] write(1, "executing program\n", 18 [pid 5899] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5901] <... write resumed>) = 18 [pid 5901] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5901] <... futex resumed>) = 0 [pid 5901] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5901] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5899] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5901] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 5902 attached ) = 0 [pid 5899] <... clone3 resumed> => {parent_tid=[5902]}, 88) = 5902 [pid 5899] rt_sigprocmask(SIG_SETMASK, [], [pid 5901] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5899] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5899] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5902] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5899] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5902] <... rseq resumed>) = 0 [pid 5901] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5902] set_robust_list(0x7fb72497a9a0, 24 [pid 5901] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5903 attached [pid 5902] <... set_robust_list resumed>) = 0 [pid 5903] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5886] <... lsetxattr resumed>) = 0 [pid 5903] <... rseq resumed>) = 0 [pid 5903] set_robust_list(0x7fb72497a9a0, 24 [pid 5886] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5903] <... set_robust_list resumed>) = 0 [pid 5902] rt_sigprocmask(SIG_SETMASK, [], [pid 5886] <... futex resumed>) = 0 [pid 5903] rt_sigprocmask(SIG_SETMASK, [], [pid 5902] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5886] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5903] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5902] memfd_create("syzkaller", 0 [pid 5903] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5902] <... memfd_create resumed>) = 3 [pid 5901] <... clone3 resumed> => {parent_tid=[5903]}, 88) = 5903 [ 185.728343][ T5886] ERROR: (device loop5): remounting filesystem as read-only [pid 5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5901] rt_sigprocmask(SIG_SETMASK, [], [pid 5902] <... mmap resumed>) = 0x7fb71c400000 [pid 5901] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5901] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5903] <... futex resumed>) = 0 [pid 5901] <... futex resumed>) = 1 [pid 5903] memfd_create("syzkaller", 0 [pid 5901] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5903] <... memfd_create resumed>) = 3 [pid 5903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5902] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5903] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5900] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5874] exit_group(0) = ? [pid 5880] <... futex resumed>) = ? [pid 5880] +++ exited with 0 +++ [pid 5879] exit_group(0) = ? [pid 5886] <... futex resumed>) = ? [pid 5886] +++ exited with 0 +++ [pid 5876] exit_group(0) = ? [pid 5883] <... futex resumed>) = ? [pid 5883] +++ exited with 0 +++ [pid 5903] <... write resumed>) = 16777216 [pid 5902] <... write resumed>) = 16777216 [pid 5903] munmap(0x7fb71c400000, 138412032 [pid 5902] munmap(0x7fb71c400000, 138412032 [pid 5903] <... munmap resumed>) = 0 [pid 5903] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5903] close(3 [pid 5902] <... munmap resumed>) = 0 [pid 5902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5902] close(3 [pid 5900] <... write resumed>) = 16777216 [pid 5900] munmap(0x7fb71c400000, 138412032) = 0 [pid 5900] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5900] close(3 [pid 5903] <... close resumed>) = 0 [pid 5903] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... close resumed>) = 0 [pid 5903] <... futex resumed>) = 1 [pid 5902] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5901] <... futex resumed>) = 0 [pid 5903] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5902] <... futex resumed>) = 1 [pid 5901] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] <... futex resumed>) = 0 [pid 5903] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5902] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] <... futex resumed>) = 0 [pid 5899] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5903] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5901] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5899] <... futex resumed>) = 0 [pid 5903] <... futex resumed>) = 0 [pid 5902] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5899] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5903] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5902] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5901] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5903] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5902] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5901] <... futex resumed>) = 0 [pid 5903] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... futex resumed>) = 1 [pid 5901] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5899] <... futex resumed>) = 0 [pid 5903] <... futex resumed>) = 0 [pid 5902] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5899] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5903] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5901] exit_group(0 [pid 5899] <... futex resumed>) = 0 [pid 5903] <... futex resumed>) = ? [pid 5902] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5901] <... exit_group resumed>) = ? [pid 5899] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5903] +++ exited with 0 +++ [pid 5902] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5901] +++ exited with 0 +++ [pid 5902] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5901, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5902] <... futex resumed>) = 1 [pid 5899] <... futex resumed>) = 0 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 5902] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5899] exit_group(0 [pid 5902] <... futex resumed>) = ? [pid 5899] <... exit_group resumed>) = ? [pid 5902] +++ exited with 0 +++ [pid 5899] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5899, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=39 /* 0.39 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 5872] <... restart_syscall resumed>) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5905 attached ./strace-static-x86_64: Process 5904 attached [pid 5904] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5904] setpgid(0, 0) = 0 [pid 5904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 5905 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5904 [pid 5904] <... openat resumed>) = 3 [pid 5905] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5904] write(3, "1000", 4 [pid 5905] <... prctl resumed>) = 0 [pid 5904] <... write resumed>) = 4 [pid 5905] setpgid(0, 0 [pid 5904] close(3 [pid 5905] <... setpgid resumed>) = 0 [pid 5904] <... close resumed>) = 0 [pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5904] write(1, "executing program\n", 18) = 18 [pid 5904] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5905] <... openat resumed>) = 3 [pid 5905] write(3, "1000", 4 [pid 5904] <... futex resumed>) = 0 [pid 5905] <... write resumed>) = 4 [pid 5905] close(3 [pid 5904] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5905] <... close resumed>) = 0 [pid 5904] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5905] write(1, "executing program\n", 18executing program [pid 5904] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5905] <... write resumed>) = 18 [pid 5904] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5905] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5904] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5905] <... futex resumed>) = 0 [pid 5904] <... mmap resumed>) = 0x7fb72495a000 [pid 5905] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5904] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5905] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5904] <... mprotect resumed>) = 0 [pid 5905] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5904] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5905] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5905] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5904] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5905] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5904] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5905] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 5906 attached [pid 5905] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5900] <... close resumed>) = 0 [pid 5906] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5905] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5904] <... clone3 resumed> => {parent_tid=[5906]}, 88) = 5906 [pid 5900] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] <... rseq resumed>) = 0 [pid 5905] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5904] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 5907 attached [pid 5906] set_robust_list(0x7fb72497a9a0, 24 [pid 5904] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5900] <... futex resumed>) = 1 [pid 5894] <... futex resumed>) = 0 [pid 5907] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5906] <... set_robust_list resumed>) = 0 [pid 5905] <... clone3 resumed> => {parent_tid=[5907]}, 88) = 5907 [pid 5904] <... futex resumed>) = 0 [pid 5900] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5894] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5907] <... rseq resumed>) = 0 [pid 5906] rt_sigprocmask(SIG_SETMASK, [], [pid 5905] rt_sigprocmask(SIG_SETMASK, [], [pid 5904] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5900] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5894] <... futex resumed>) = 0 [pid 5907] set_robust_list(0x7fb72497a9a0, 24 [pid 5906] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5905] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5900] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5894] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5907] <... set_robust_list resumed>) = 0 [pid 5905] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5907] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5905] <... futex resumed>) = 0 [pid 5900] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5905] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5900] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5894] <... futex resumed>) = 0 [pid 5900] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5894] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5900] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5894] <... futex resumed>) = 0 [pid 5907] memfd_create("syzkaller", 0 [pid 5894] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5900] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5907] <... memfd_create resumed>) = 3 [pid 5900] <... futex resumed>) = 1 [pid 5907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5906] memfd_create("syzkaller", 0 [pid 5900] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5894] <... futex resumed>) = 0 [pid 5907] <... mmap resumed>) = 0x7fb71c400000 [pid 5894] exit_group(0) = ? [pid 5900] <... futex resumed>) = ? [pid 5900] +++ exited with 0 +++ [pid 5894] +++ exited with 0 +++ [pid 5906] <... memfd_create resumed>) = 3 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5894, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5906] <... mmap resumed>) = 0x7fb71c400000 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5908 attached [pid 5908] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 5908 [pid 5908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5908] setpgid(0, 0) = 0 [pid 5908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5908] write(3, "1000", 4) = 4 [pid 5908] close(3) = 0 [pid 5908] write(1, "executing program\n", 18executing program ) = 18 [pid 5908] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5908] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5908] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5908] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5908] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5908] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5909 attached => {parent_tid=[5909]}, 88) = 5909 [pid 5908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5909] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5909] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5909] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5909] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5908] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] <... futex resumed>) = 0 [pid 5908] <... futex resumed>) = 1 [pid 5909] memfd_create("syzkaller", 0 [pid 5908] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5909] <... memfd_create resumed>) = 3 [pid 5909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5906] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5907] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5909] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5906] <... write resumed>) = 16777216 [pid 5906] munmap(0x7fb71c400000, 138412032) = 0 [pid 5906] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5906] close(3 [pid 5907] <... write resumed>) = 16777216 [pid 5907] munmap(0x7fb71c400000, 138412032) = 0 [pid 5907] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5907] close(3 [pid 5909] <... write resumed>) = 16777216 [pid 5909] munmap(0x7fb71c400000, 138412032) = 0 [pid 5909] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5909] close(3 [pid 5907] <... close resumed>) = 0 [pid 5907] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] <... close resumed>) = 0 [pid 5907] <... futex resumed>) = 1 [pid 5905] <... futex resumed>) = 0 [pid 5907] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5906] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5905] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5907] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5905] <... futex resumed>) = 0 [pid 5907] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5905] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5907] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5907] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5905] <... futex resumed>) = 0 [pid 5905] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5907] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5905] <... futex resumed>) = 0 [pid 5907] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5905] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5907] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5905] <... futex resumed>) = 0 [pid 5905] exit_group(0 [pid 5907] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5906] <... futex resumed>) = 1 [pid 5904] <... futex resumed>) = 0 [pid 5905] <... exit_group resumed>) = ? [pid 5907] <... futex resumed>) = ? [pid 5904] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5907] +++ exited with 0 +++ [pid 5906] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5905] +++ exited with 0 +++ [pid 5904] <... futex resumed>) = 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5905, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 5904] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5906] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5906] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5904] <... futex resumed>) = 0 [pid 5906] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5904] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5906] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5904] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5906] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5904] <... futex resumed>) = 0 [pid 5906] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5904] exit_group(0) = ? [pid 5906] <... futex resumed>) = ? [pid 5868] <... restart_syscall resumed>) = 0 [pid 5906] +++ exited with 0 +++ [pid 5904] +++ exited with 0 +++ [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5904, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5911 attached [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 5911] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 5911 [pid 5911] <... set_robust_list resumed>) = 0 [pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5911] setpgid(0, 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5911] <... setpgid resumed>) = 0 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5912 attached [pid 5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5911] write(3, "1000", 4) = 4 [pid 5911] close(3) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5912 executing program [pid 5911] write(1, "executing program\n", 18) = 18 [pid 5911] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5912] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5911] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5912] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5911] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5909] <... close resumed>) = 0 [pid 5912] <... prctl resumed>) = 0 [pid 5911] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5912] setpgid(0, 0 [pid 5911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5909] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... setpgid resumed>) = 0 [pid 5909] <... futex resumed>) = 1 [pid 5908] <... futex resumed>) = 0 [pid 5911] <... mmap resumed>) = 0x7fb72495a000 [pid 5912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5909] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5908] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5911] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5909] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5908] <... futex resumed>) = 0 [pid 5912] <... openat resumed>) = 3 [pid 5909] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5908] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5911] <... mprotect resumed>) = 0 [pid 5908] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5912] write(3, "1000", 4 [pid 5909] <... futex resumed>) = 0 [pid 5908] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5908] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5912] <... write resumed>) = 4 [pid 5911] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5909] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5912] close(3 [pid 5911] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5909] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5912] <... close resumed>) = 0 [pid 5911] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}executing program [pid 5912] write(1, "executing program\n", 18 [pid 5909] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5913 attached [pid 5912] <... write resumed>) = 18 [pid 5909] <... futex resumed>) = 1 [pid 5908] <... futex resumed>) = 0 [pid 5913] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5912] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5908] exit_group(0 [pid 5913] <... rseq resumed>) = 0 [pid 5912] <... futex resumed>) = 0 [pid 5911] <... clone3 resumed> => {parent_tid=[5913]}, 88) = 5913 [pid 5909] <... futex resumed>) = ? [pid 5908] <... exit_group resumed>) = ? [pid 5913] set_robust_list(0x7fb72497a9a0, 24 [pid 5912] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5911] rt_sigprocmask(SIG_SETMASK, [], [pid 5909] +++ exited with 0 +++ [pid 5913] <... set_robust_list resumed>) = 0 [pid 5912] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5913] rt_sigprocmask(SIG_SETMASK, [], [pid 5911] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5913] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5911] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5913] memfd_create("syzkaller", 0 [pid 5912] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5911] <... futex resumed>) = 0 [pid 5908] +++ exited with 0 +++ [pid 5913] <... memfd_create resumed>) = 3 [pid 5912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5911] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5908, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5912] <... mmap resumed>) = 0x7fb72495a000 [pid 5912] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5912] <... mprotect resumed>) = 0 [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5913] <... mmap resumed>) = 0x7fb71c400000 [pid 5912] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5912] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5914 attached => {parent_tid=[5914]}, 88) = 5914 [pid 5912] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5912] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5914] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5912] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5869] <... restart_syscall resumed>) = 0 [pid 5914] <... rseq resumed>) = 0 [pid 5914] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5914] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5914] memfd_create("syzkaller", 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5914] <... memfd_create resumed>) = 3 [pid 5914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5914] <... mmap resumed>) = 0x7fb71c400000 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5915 attached [pid 5915] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 5915 [pid 5915] <... prctl resumed>) = 0 [pid 5915] setpgid(0, 0) = 0 [pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5915] write(3, "1000", 4) = 4 [pid 5915] close(3) = 0 executing program [pid 5915] write(1, "executing program\n", 18) = 18 [pid 5915] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5915] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5915] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5915] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5915] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5915] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5916 attached => {parent_tid=[5916]}, 88) = 5916 [pid 5915] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5915] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5915] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5916] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5916] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5916] memfd_create("syzkaller", 0) = 3 [pid 5916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5913] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5914] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5916] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5913] <... write resumed>) = 16777216 [pid 5913] munmap(0x7fb71c400000, 138412032) = 0 [pid 5913] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5913] close(3 [pid 5914] <... write resumed>) = 16777216 [pid 5914] munmap(0x7fb71c400000, 138412032 [pid 5916] <... write resumed>) = 16777216 [pid 5914] <... munmap resumed>) = 0 [pid 5916] munmap(0x7fb71c400000, 138412032 [pid 5914] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5914] close(3 [pid 5916] <... munmap resumed>) = 0 [pid 5916] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5916] close(3 [pid 5913] <... close resumed>) = 0 [pid 5913] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5911] <... futex resumed>) = 0 [pid 5913] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5911] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5911] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5913] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5913] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5911] <... futex resumed>) = 0 [pid 5913] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5911] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5911] <... futex resumed>) = 0 [pid 5913] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5911] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5913] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5913] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5911] <... futex resumed>) = 0 [pid 5913] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5911] exit_group(0 [pid 5913] <... futex resumed>) = ? [pid 5911] <... exit_group resumed>) = ? [pid 5913] +++ exited with 0 +++ [pid 5911] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5911, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5917 ./strace-static-x86_64: Process 5917 attached [pid 5917] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5917] setpgid(0, 0) = 0 [pid 5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5917] write(3, "1000", 4) = 4 [pid 5917] close(3) = 0 executing program [pid 5917] write(1, "executing program\n", 18) = 18 [pid 5917] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5917] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5917] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5917] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5917] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5917] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5917] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5918 attached => {parent_tid=[5918]}, 88) = 5918 [pid 5918] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5917] rt_sigprocmask(SIG_SETMASK, [], [pid 5918] <... rseq resumed>) = 0 [pid 5918] set_robust_list(0x7fb72497a9a0, 24 [pid 5917] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5917] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5918] <... set_robust_list resumed>) = 0 [pid 5917] <... futex resumed>) = 0 [pid 5918] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5918] memfd_create("syzkaller", 0 [pid 5917] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5918] <... memfd_create resumed>) = 3 [pid 5918] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5914] <... close resumed>) = 0 [pid 5914] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5914] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5912] <... futex resumed>) = 0 [pid 5912] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5914] <... futex resumed>) = 0 [pid 5912] <... futex resumed>) = 1 [pid 5914] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5916] <... close resumed>) = 0 [pid 5914] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5912] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5916] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5914] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5915] <... futex resumed>) = 0 [pid 5914] <... futex resumed>) = 0 [pid 5912] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5916] <... futex resumed>) = 1 [pid 5915] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5914] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5912] <... futex resumed>) = 0 [pid 5916] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5915] <... futex resumed>) = 0 [pid 5914] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5912] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5916] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5915] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5914] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5916] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5914] <... futex resumed>) = 0 [pid 5912] exit_group(0 [pid 5916] <... futex resumed>) = 1 [pid 5915] <... futex resumed>) = 0 [pid 5912] <... exit_group resumed>) = ? [pid 5916] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5915] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5914] +++ exited with 0 +++ [pid 5915] <... futex resumed>) = 0 [pid 5916] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5915] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5916] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5916] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] +++ exited with 0 +++ [pid 5916] <... futex resumed>) = 1 [pid 5915] <... futex resumed>) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5912, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=33 /* 0.33 s */} --- [pid 5916] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5915] exit_group(0 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 5916] <... futex resumed>) = ? [pid 5915] <... exit_group resumed>) = ? [pid 5916] +++ exited with 0 +++ [pid 5915] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5915, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=40 /* 0.40 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5872] <... restart_syscall resumed>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5919 attached [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 5919 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5920 attached [pid 5919] set_robust_list(0x55556c2036a0, 24 [pid 5920] set_robust_list(0x55556c2036a0, 24 [pid 5919] <... set_robust_list resumed>) = 0 [pid 5920] <... set_robust_list resumed>) = 0 [pid 5919] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5920 [pid 5920] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5919] <... prctl resumed>) = 0 [pid 5920] <... prctl resumed>) = 0 [pid 5919] setpgid(0, 0 [pid 5920] setpgid(0, 0 [pid 5919] <... setpgid resumed>) = 0 [pid 5920] <... setpgid resumed>) = 0 [pid 5920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5920] <... openat resumed>) = 3 [pid 5919] <... openat resumed>) = 3 [pid 5920] write(3, "1000", 4 [pid 5919] write(3, "1000", 4 [pid 5920] <... write resumed>) = 4 [pid 5919] <... write resumed>) = 4 [pid 5919] close(3 [pid 5920] close(3) = 0 [pid 5919] <... close resumed>) = 0 executing program executing program [pid 5920] write(1, "executing program\n", 18 [pid 5919] write(1, "executing program\n", 18 [pid 5920] <... write resumed>) = 18 [pid 5919] <... write resumed>) = 18 [pid 5920] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] <... futex resumed>) = 0 [pid 5919] <... futex resumed>) = 0 [pid 5920] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5919] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5920] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5919] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5919] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5919] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5919] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5920] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5919] <... mprotect resumed>) = 0 [pid 5920] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5919] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5920] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5919] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5920] <... mmap resumed>) = 0x7fb72495a000 [pid 5919] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5922 attached [pid 5920] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5919] <... clone3 resumed> => {parent_tid=[5922]}, 88) = 5922 [pid 5920] <... mprotect resumed>) = 0 [pid 5919] rt_sigprocmask(SIG_SETMASK, [], [pid 5920] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5919] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5922] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5920] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5919] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5919] <... futex resumed>) = 0 [pid 5922] <... rseq resumed>) = 0 [pid 5919] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5923 attached [pid 5922] set_robust_list(0x7fb72497a9a0, 24 [pid 5920] <... clone3 resumed> => {parent_tid=[5923]}, 88) = 5923 [pid 5923] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5922] <... set_robust_list resumed>) = 0 [pid 5920] rt_sigprocmask(SIG_SETMASK, [], [pid 5918] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5923] <... rseq resumed>) = 0 [pid 5922] rt_sigprocmask(SIG_SETMASK, [], [pid 5920] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5923] set_robust_list(0x7fb72497a9a0, 24 [pid 5920] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] <... set_robust_list resumed>) = 0 [pid 5922] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5920] <... futex resumed>) = 0 [pid 5923] rt_sigprocmask(SIG_SETMASK, [], [pid 5920] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5923] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5923] memfd_create("syzkaller", 0 [pid 5922] memfd_create("syzkaller", 0) = 3 [pid 5923] <... memfd_create resumed>) = 3 [pid 5922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5923] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5922] <... mmap resumed>) = 0x7fb71c400000 [pid 5923] <... mmap resumed>) = 0x7fb71c400000 [pid 5922] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5923] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5918] <... write resumed>) = 16777216 [pid 5918] munmap(0x7fb71c400000, 138412032) = 0 [pid 5918] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5918] close(3 [pid 5922] <... write resumed>) = 16777216 [pid 5922] munmap(0x7fb71c400000, 138412032) = 0 [pid 5922] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5922] close(3 [pid 5918] <... close resumed>) = 0 [pid 5923] <... write resumed>) = 16777216 [pid 5923] munmap(0x7fb71c400000, 138412032 [pid 5918] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5917] <... futex resumed>) = 0 [pid 5918] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5917] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5918] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5917] <... futex resumed>) = 0 [pid 5918] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5917] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5918] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5918] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5917] <... futex resumed>) = 0 [pid 5918] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5917] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5918] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5917] <... futex resumed>) = 0 [pid 5918] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5917] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5918] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5923] <... munmap resumed>) = 0 [pid 5918] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5918] <... futex resumed>) = 1 [pid 5917] <... futex resumed>) = 0 [pid 5918] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5917] exit_group(0) = ? [pid 5923] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5918] <... futex resumed>) = ? [pid 5923] close(3 [pid 5918] +++ exited with 0 +++ [pid 5917] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5917, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5926 attached , child_tidptr=0x55556c203690) = 5926 [pid 5926] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5926] setpgid(0, 0) = 0 [pid 5926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5926] write(3, "1000", 4) = 4 [pid 5926] close(3) = 0 executing program [pid 5926] write(1, "executing program\n", 18) = 18 [pid 5926] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5926] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5926] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5926] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5926] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5926] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5927 attached => {parent_tid=[5927]}, 88) = 5927 [pid 5927] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5926] rt_sigprocmask(SIG_SETMASK, [], [pid 5927] <... rseq resumed>) = 0 [pid 5926] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5927] set_robust_list(0x7fb72497a9a0, 24 [pid 5926] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] <... set_robust_list resumed>) = 0 [pid 5927] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5927] memfd_create("syzkaller", 0) = 3 [pid 5927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5926] <... futex resumed>) = 0 [pid 5926] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5922] <... close resumed>) = 0 [pid 5922] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5922] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] <... futex resumed>) = 0 [pid 5919] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5922] <... futex resumed>) = 0 [pid 5919] <... futex resumed>) = 1 [pid 5922] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5919] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5922] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5922] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5922] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5922] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5919] <... futex resumed>) = 0 [pid 5922] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5919] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5922] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5922] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] <... futex resumed>) = 0 [pid 5922] <... futex resumed>) = 1 [pid 5919] exit_group(0 [pid 5922] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] <... exit_group resumed>) = ? [pid 5922] <... futex resumed>) = ? [pid 5922] +++ exited with 0 +++ [pid 5919] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5919, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5929 attached , child_tidptr=0x55556c203690) = 5929 [pid 5929] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5929] setpgid(0, 0) = 0 [pid 5929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5929] write(3, "1000", 4) = 4 [pid 5929] close(3) = 0 executing program [pid 5929] write(1, "executing program\n", 18) = 18 [pid 5929] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5929] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5929] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5929] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5929] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5929] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5929] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5930 attached => {parent_tid=[5930]}, 88) = 5930 [pid 5929] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5929] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5930] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5929] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5930] <... rseq resumed>) = 0 [pid 5930] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5930] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5930] memfd_create("syzkaller", 0) = 3 [pid 5930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5927] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5923] <... close resumed>) = 0 [pid 5923] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5920] <... futex resumed>) = 0 [pid 5923] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5920] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5920] <... futex resumed>) = 0 [pid 5923] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5920] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5923] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5923] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5920] <... futex resumed>) = 0 [pid 5923] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5920] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5920] <... futex resumed>) = 0 [pid 5923] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5923] <... futex resumed>) = 0 [pid 5920] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5920] exit_group(0 [pid 5923] <... futex resumed>) = ? [pid 5920] <... exit_group resumed>) = ? [pid 5923] +++ exited with 0 +++ [pid 5920] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5920, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5931 attached [pid 5931] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5931 [pid 5931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5931] setpgid(0, 0) = 0 [pid 5931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5930] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5931] <... openat resumed>) = 3 [pid 5931] write(3, "1000", 4) = 4 [pid 5931] close(3executing program ) = 0 [pid 5931] write(1, "executing program\n", 18) = 18 [pid 5931] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5931] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5931] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5931] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5931] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5931] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5931] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[5932]}, 88) = 5932 ./strace-static-x86_64: Process 5932 attached [pid 5931] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5931] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5931] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5932] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5932] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5932] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5932] memfd_create("syzkaller", 0) = 3 [pid 5932] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5927] <... write resumed>) = 16777216 [pid 5927] munmap(0x7fb71c400000, 138412032 [pid 5932] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5927] <... munmap resumed>) = 0 [pid 5927] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5930] <... write resumed>) = 16777216 [pid 5927] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5927] close(3 [pid 5930] munmap(0x7fb71c400000, 138412032) = 0 [pid 5930] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5930] close(3 [pid 5927] <... close resumed>) = 0 [pid 5927] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5926] <... futex resumed>) = 0 [pid 5927] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5926] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5926] <... futex resumed>) = 0 [pid 5927] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5927] <... futex resumed>) = 0 [pid 5926] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5927] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5926] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5926] <... futex resumed>) = 0 [pid 5927] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5926] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5927] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5927] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5926] <... futex resumed>) = 0 [pid 5927] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5926] exit_group(0 [pid 5927] <... futex resumed>) = ? [pid 5926] <... exit_group resumed>) = ? [pid 5927] +++ exited with 0 +++ [pid 5926] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5926, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=40 /* 0.40 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5933 attached , child_tidptr=0x55556c203690) = 5933 [pid 5933] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5933] setpgid(0, 0) = 0 [pid 5933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5933] write(3, "1000", 4) = 4 [pid 5933] close(3executing program ) = 0 [pid 5933] write(1, "executing program\n", 18) = 18 [pid 5933] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5933] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5933] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5933] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5933] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5933] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5933] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5934 attached [pid 5934] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5933] <... clone3 resumed> => {parent_tid=[5934]}, 88) = 5934 [pid 5934] <... rseq resumed>) = 0 [pid 5933] rt_sigprocmask(SIG_SETMASK, [], [pid 5934] set_robust_list(0x7fb72497a9a0, 24 [pid 5933] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5934] <... set_robust_list resumed>) = 0 [pid 5933] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5934] rt_sigprocmask(SIG_SETMASK, [], [pid 5933] <... futex resumed>) = 0 [pid 5934] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5933] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5934] memfd_create("syzkaller", 0) = 3 [pid 5934] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5932] <... write resumed>) = 16777216 [pid 5932] munmap(0x7fb71c400000, 138412032) = 0 [pid 5932] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5932] close(3 [pid 5930] <... close resumed>) = 0 [pid 5930] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5929] <... futex resumed>) = 0 [pid 5930] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5929] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5929] <... futex resumed>) = 0 [pid 5930] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5929] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5930] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5930] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5929] <... futex resumed>) = 0 [pid 5930] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5929] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5929] <... futex resumed>) = 0 [pid 5930] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5929] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5929] exit_group(0) = ? [pid 5930] <... futex resumed>) = ? [pid 5930] +++ exited with 0 +++ [pid 5929] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5929, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5935 ./strace-static-x86_64: Process 5935 attached [pid 5935] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5935] setpgid(0, 0) = 0 [pid 5935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5935] write(3, "1000", 4) = 4 [pid 5935] close(3) = 0 executing program [pid 5935] write(1, "executing program\n", 18) = 18 [pid 5935] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5935] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5935] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5935] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5935] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5935] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5936 attached => {parent_tid=[5936]}, 88) = 5936 [pid 5935] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5935] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5935] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5936] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5936] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5936] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5936] memfd_create("syzkaller", 0) = 3 [pid 5936] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5870] kill(-5874, SIGKILL) = 0 [pid 5870] kill(5874, SIGKILL) = 0 [pid 5871] kill(-5876, SIGKILL) = 0 [pid 5871] kill(5876, SIGKILL) = 0 [pid 5877] kill(-5879, SIGKILL) = 0 [pid 5877] kill(5879, SIGKILL) = 0 [pid 5934] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5932] <... close resumed>) = 0 [pid 5932] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5931] <... futex resumed>) = 0 [pid 5931] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5931] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5932] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5932] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] <... futex resumed>) = 0 [pid 5931] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5931] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5932] <... futex resumed>) = 1 [pid 5932] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5932] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] <... futex resumed>) = 0 [pid 5931] exit_group(0) = ? [pid 5932] <... futex resumed>) = ? [pid 5932] +++ exited with 0 +++ [pid 5931] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5931, si_uid=0, si_status=0, si_utime=0, si_stime=38 /* 0.38 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5937 ./strace-static-x86_64: Process 5937 attached [pid 5937] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5937] setpgid(0, 0) = 0 [pid 5937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5937] write(3, "1000", 4executing program ) = 4 [pid 5937] close(3) = 0 [pid 5937] write(1, "executing program\n", 18) = 18 [pid 5937] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5937] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5937] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5937] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5937] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5937] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5937] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[5938]}, 88) = 5938 [pid 5937] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5937] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5938 attached [pid 5937] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5938] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5936] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5938] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5938] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5938] memfd_create("syzkaller", 0) = 3 [pid 5938] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5934] <... write resumed>) = 16777216 [pid 5934] munmap(0x7fb71c400000, 138412032) = 0 [pid 5934] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5934] close(3 [pid 5871] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5871] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5871] getdents64(3, 0x55556c204730 /* 2 entries */, 32768) = 48 [pid 5871] getdents64(3, 0x55556c204730 /* 0 entries */, 32768) = 0 [pid 5938] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5871] close(3) = 0 [pid 5877] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5877] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5877] getdents64(3, 0x55556c204730 /* 2 entries */, 32768) = 48 [pid 5877] getdents64(3, 0x55556c204730 /* 0 entries */, 32768) = 0 [pid 5877] close(3) = 0 [pid 5870] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5870] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5870] getdents64(3, 0x55556c204730 /* 2 entries */, 32768) = 48 [pid 5870] getdents64(3, 0x55556c204730 /* 0 entries */, 32768) = 0 [pid 5870] close(3) = 0 [pid 5936] <... write resumed>) = 16777216 [pid 5936] munmap(0x7fb71c400000, 138412032) = 0 [pid 5936] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5936] close(3 [pid 5934] <... close resumed>) = 0 [pid 5934] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5933] <... futex resumed>) = 0 [pid 5934] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5933] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5934] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5933] <... futex resumed>) = 0 [pid 5934] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5933] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5934] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5934] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5933] <... futex resumed>) = 0 [pid 5934] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5933] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5934] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5933] <... futex resumed>) = 0 [pid 5934] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5933] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5934] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5934] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5933] <... futex resumed>) = 0 [pid 5934] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5933] exit_group(0 [pid 5934] <... futex resumed>) = ? [pid 5933] <... exit_group resumed>) = ? [pid 5934] +++ exited with 0 +++ [pid 5933] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5933, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5939 attached , child_tidptr=0x55556c203690) = 5939 [pid 5939] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5939] setpgid(0, 0) = 0 [pid 5939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5939] write(3, "1000", 4) = 4 [pid 5939] close(3) = 0 [pid 5939] write(1, "executing program\n", 18executing program ) = 18 [pid 5939] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5939] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5939] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5939] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5939] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5938] <... write resumed>) = 16777216 [pid 5939] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5939] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5938] munmap(0x7fb71c400000, 138412032./strace-static-x86_64: Process 5940 attached [pid 5939] <... clone3 resumed> => {parent_tid=[5940]}, 88) = 5940 [pid 5940] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5940] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5940] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5939] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5939] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5939] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5940] memfd_create("syzkaller", 0) = 3 [pid 5940] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5938] <... munmap resumed>) = 0 [pid 5936] <... close resumed>) = 0 [pid 5938] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5936] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5938] close(3 [pid 5936] <... futex resumed>) = 1 [pid 5935] <... futex resumed>) = 0 [pid 5935] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5935] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5936] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5936] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5935] <... futex resumed>) = 0 [pid 5936] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5935] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5935] <... futex resumed>) = 0 [pid 5935] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5936] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5936] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5935] <... futex resumed>) = 0 [pid 5936] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5935] exit_group(0) = ? [pid 5936] <... futex resumed>) = ? [pid 5936] +++ exited with 0 +++ [pid 5935] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5935, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5941 attached , child_tidptr=0x55556c203690) = 5941 [pid 5941] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5941] setpgid(0, 0) = 0 [pid 5941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5940] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216executing program [pid 5941] <... openat resumed>) = 3 [pid 5941] write(3, "1000", 4) = 4 [pid 5941] close(3) = 0 [pid 5941] write(1, "executing program\n", 18) = 18 [pid 5941] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5941] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5941] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5941] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5941] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5941] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5941] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5942 attached => {parent_tid=[5942]}, 88) = 5942 [pid 5941] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5941] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5941] <... futex resumed>) = 0 [pid 5941] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5942] <... rseq resumed>) = 0 [pid 5942] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5942] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5942] memfd_create("syzkaller", 0) = 3 [pid 5942] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5942] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5938] <... close resumed>) = 0 [pid 5938] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5937] <... futex resumed>) = 0 [pid 5938] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5937] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5938] <... futex resumed>) = 0 [pid 5937] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5938] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5938] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5937] <... futex resumed>) = 0 [pid 5938] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5937] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5937] <... futex resumed>) = 0 [pid 5938] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5938] <... futex resumed>) = 0 [pid 5937] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5938] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5937] exit_group(0 [pid 5938] <... futex resumed>) = ? [pid 5937] <... exit_group resumed>) = ? [pid 5938] +++ exited with 0 +++ [pid 5937] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5937, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=29 /* 0.29 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5943 attached , child_tidptr=0x55556c203690) = 5943 [pid 5943] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5943] setpgid(0, 0) = 0 [pid 5943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5943] write(3, "1000", 4) = 4 [pid 5943] close(3) = 0 [pid 5943] write(1, "executing program\n", 18) = 18 [pid 5943] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5943] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5943] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5943] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5943] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5943] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5943] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5944 attached => {parent_tid=[5944]}, 88) = 5944 [pid 5943] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5943] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5943] <... futex resumed>) = 0 [pid 5944] <... rseq resumed>) = 0 [pid 5944] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5944] rt_sigprocmask(SIG_SETMASK, [], [pid 5943] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5944] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5944] memfd_create("syzkaller", 0) = 3 [pid 5944] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5940] <... write resumed>) = 16777216 [pid 5940] munmap(0x7fb71c400000, 138412032) = 0 [pid 5940] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5940] close(3 [pid 5942] <... write resumed>) = 16777216 [pid 5942] munmap(0x7fb71c400000, 138412032 [pid 5944] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5942] <... munmap resumed>) = 0 [pid 5942] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5942] close(3 [pid 5940] <... close resumed>) = 0 [pid 5940] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5939] <... futex resumed>) = 0 [pid 5939] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] <... futex resumed>) = 1 [pid 5940] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5939] <... futex resumed>) = 0 [pid 5939] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5940] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5940] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5939] <... futex resumed>) = 0 [pid 5940] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5939] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5939] <... futex resumed>) = 0 [pid 5940] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5939] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5940] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5940] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5939] <... futex resumed>) = 0 [pid 5940] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5939] exit_group(0 [pid 5940] <... futex resumed>) = ? [pid 5939] <... exit_group resumed>) = ? [pid 5940] +++ exited with 0 +++ [pid 5939] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5939, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5945 ./strace-static-x86_64: Process 5945 attached [pid 5945] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5945] setpgid(0, 0) = 0 [pid 5945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5945] write(3, "1000", 4) = 4 [pid 5945] close(3executing program ) = 0 [pid 5945] write(1, "executing program\n", 18) = 18 [pid 5945] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5945] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5945] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5945] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5945] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5945] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5945] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5946 attached [pid 5946] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5946] set_robust_list(0x7fb72497a9a0, 24 [pid 5945] <... clone3 resumed> => {parent_tid=[5946]}, 88) = 5946 [pid 5945] rt_sigprocmask(SIG_SETMASK, [], [pid 5946] <... set_robust_list resumed>) = 0 [pid 5945] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5946] rt_sigprocmask(SIG_SETMASK, [], [pid 5945] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5945] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5946] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5946] memfd_create("syzkaller", 0) = 3 [pid 5946] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5942] <... close resumed>) = 0 [pid 5942] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5942] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5941] <... futex resumed>) = 0 [pid 5941] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5941] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5942] <... futex resumed>) = 0 [pid 5942] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5942] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5942] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5941] <... futex resumed>) = 0 [pid 5941] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] <... futex resumed>) = 0 [pid 5941] <... futex resumed>) = 1 [pid 5942] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5941] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5942] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5942] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] <... futex resumed>) = 0 [pid 5942] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5941] exit_group(0 [pid 5942] <... futex resumed>) = ? [pid 5941] <... exit_group resumed>) = ? [pid 5942] +++ exited with 0 +++ [pid 5941] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5941, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5948 attached , child_tidptr=0x55556c203690) = 5948 [pid 5948] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5946] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5944] <... write resumed>) = 16777216 [pid 5948] setpgid(0, 0 [pid 5944] munmap(0x7fb71c400000, 138412032 [pid 5948] <... setpgid resumed>) = 0 [pid 5948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5948] write(3, "1000", 4) = 4 [pid 5944] <... munmap resumed>) = 0 [pid 5948] close(3) = 0 executing program [pid 5948] write(1, "executing program\n", 18) = 18 [pid 5948] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5948] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5948] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5948] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5948] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5948] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5948] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5949 attached [pid 5949] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5948] <... clone3 resumed> => {parent_tid=[5949]}, 88) = 5949 [pid 5949] <... rseq resumed>) = 0 [pid 5948] rt_sigprocmask(SIG_SETMASK, [], [pid 5949] set_robust_list(0x7fb72497a9a0, 24 [pid 5948] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5949] <... set_robust_list resumed>) = 0 [pid 5948] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5949] rt_sigprocmask(SIG_SETMASK, [], [pid 5948] <... futex resumed>) = 0 [pid 5949] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5948] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5944] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5949] memfd_create("syzkaller", 0 [pid 5944] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5949] <... memfd_create resumed>) = 3 [pid 5949] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5944] close(3 [pid 5949] <... mmap resumed>) = 0x7fb71c400000 [pid 5944] <... close resumed>) = 0 [pid 5944] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5943] <... futex resumed>) = 0 [pid 5944] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5943] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] <... futex resumed>) = 0 [pid 5943] <... futex resumed>) = 1 [pid 5944] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5943] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5944] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5944] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5943] <... futex resumed>) = 0 [pid 5944] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5943] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5943] <... futex resumed>) = 0 [pid 5944] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5943] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5944] <... futex resumed>) = 0 [pid 5943] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5944] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5943] exit_group(0 [pid 5944] <... futex resumed>) = ? [pid 5943] <... exit_group resumed>) = ? [pid 5944] +++ exited with 0 +++ [pid 5943] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5943, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=39 /* 0.39 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5949] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5950 attached [pid 5950] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5950 [pid 5950] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program ) = 0 [pid 5950] setpgid(0, 0) = 0 [pid 5950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5950] write(3, "1000", 4) = 4 [pid 5950] close(3) = 0 [pid 5950] write(1, "executing program\n", 18) = 18 [pid 5950] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5950] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5950] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5950] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5950] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5950] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5950] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5951 attached => {parent_tid=[5951]}, 88) = 5951 [pid 5950] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5950] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5950] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5951] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5951] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5951] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5951] memfd_create("syzkaller", 0) = 3 [pid 5951] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5946] <... write resumed>) = 16777216 [pid 5946] munmap(0x7fb71c400000, 138412032) = 0 [pid 5946] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5946] close(3 [pid 5949] <... write resumed>) = 16777216 [pid 5951] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5949] munmap(0x7fb71c400000, 138412032) = 0 [pid 5949] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5949] close(3 [pid 5946] <... close resumed>) = 0 [pid 5946] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5946] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5945] <... futex resumed>) = 0 [pid 5945] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5946] <... futex resumed>) = 0 [pid 5945] <... futex resumed>) = 1 [pid 5946] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5945] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5946] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5946] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5945] <... futex resumed>) = 0 [pid 5946] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5945] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5946] <... futex resumed>) = 0 [pid 5945] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5946] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5946] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5945] <... futex resumed>) = 0 [pid 5946] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5945] exit_group(0 [pid 5946] <... futex resumed>) = ? [pid 5945] <... exit_group resumed>) = ? [pid 5946] +++ exited with 0 +++ [pid 5945] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5945, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5952 attached , child_tidptr=0x55556c203690) = 5952 [pid 5952] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5952] setpgid(0, 0) = 0 [pid 5952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5952] write(3, "1000", 4) = 4 [pid 5952] close(3executing program ) = 0 [pid 5952] write(1, "executing program\n", 18) = 18 [pid 5952] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5952] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5952] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5952] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5952] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5952] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5952] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5953 attached [pid 5953] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5952] <... clone3 resumed> => {parent_tid=[5953]}, 88) = 5953 [pid 5953] <... rseq resumed>) = 0 [pid 5952] rt_sigprocmask(SIG_SETMASK, [], [pid 5953] set_robust_list(0x7fb72497a9a0, 24 [pid 5952] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5953] <... set_robust_list resumed>) = 0 [pid 5952] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5953] rt_sigprocmask(SIG_SETMASK, [], [pid 5952] <... futex resumed>) = 0 [pid 5953] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5952] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5953] memfd_create("syzkaller", 0) = 3 [pid 5953] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5953] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5949] <... close resumed>) = 0 [pid 5949] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5948] <... futex resumed>) = 0 [pid 5948] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5948] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5949] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5949] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5948] <... futex resumed>) = 0 [pid 5948] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5948] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5949] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5949] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] <... futex resumed>) = 0 [pid 5948] exit_group(0) = ? [pid 5949] <... futex resumed>) = ? [pid 5949] +++ exited with 0 +++ [pid 5948] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5948, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5951] <... write resumed>) = 16777216 [pid 5951] munmap(0x7fb71c400000, 138412032 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5954 ./strace-static-x86_64: Process 5954 attached [pid 5954] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5954] setpgid(0, 0) = 0 [pid 5954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5951] <... munmap resumed>) = 0 [pid 5951] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5954] <... openat resumed>) = 3 [pid 5951] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5954] write(3, "1000", 4) = 4 [pid 5951] close(3 [pid 5954] close(3executing program ) = 0 [pid 5954] write(1, "executing program\n", 18) = 18 [pid 5954] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5954] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5954] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5954] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5954] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5954] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5954] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5955 attached => {parent_tid=[5955]}, 88) = 5955 [pid 5955] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5954] rt_sigprocmask(SIG_SETMASK, [], [pid 5955] <... rseq resumed>) = 0 [pid 5954] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5955] set_robust_list(0x7fb72497a9a0, 24 [pid 5954] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5955] <... set_robust_list resumed>) = 0 [pid 5954] <... futex resumed>) = 0 [pid 5955] rt_sigprocmask(SIG_SETMASK, [], [pid 5954] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5955] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5955] memfd_create("syzkaller", 0) = 3 [pid 5955] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5953] <... write resumed>) = 16777216 [pid 5951] <... close resumed>) = 0 [pid 5955] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5953] munmap(0x7fb71c400000, 138412032 [pid 5951] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5951] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5950] <... futex resumed>) = 0 [pid 5950] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5951] <... futex resumed>) = 0 [pid 5950] <... futex resumed>) = 1 [pid 5951] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5950] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5951] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5951] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5951] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5950] <... futex resumed>) = 0 [pid 5951] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5950] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5951] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5950] <... futex resumed>) = 0 [pid 5951] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5951] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5950] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5951] <... futex resumed>) = 0 [pid 5950] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5951] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5950] exit_group(0 [pid 5951] <... futex resumed>) = ? [pid 5950] <... exit_group resumed>) = ? [pid 5951] +++ exited with 0 +++ [pid 5950] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5950, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5953] <... munmap resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5956 ./strace-static-x86_64: Process 5956 attached [pid 5956] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5956] setpgid(0, 0) = 0 [pid 5956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5953] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5956] write(3, "1000", 4) = 4 [pid 5953] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5956] close(3executing program ) = 0 [pid 5956] write(1, "executing program\n", 18) = 18 [pid 5953] close(3 [pid 5956] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5956] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5956] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5956] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5956] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5956] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5957 attached => {parent_tid=[5957]}, 88) = 5957 [pid 5956] rt_sigprocmask(SIG_SETMASK, [], [pid 5957] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5956] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5957] <... rseq resumed>) = 0 [pid 5957] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5957] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5957] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5956] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... futex resumed>) = 0 [pid 5956] <... futex resumed>) = 1 [pid 5956] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5957] memfd_create("syzkaller", 0) = 3 [pid 5957] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5953] <... close resumed>) = 0 [pid 5953] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5952] <... futex resumed>) = 0 [pid 5953] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5952] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5952] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5953] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5953] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5952] <... futex resumed>) = 0 [pid 5953] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5952] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5953] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5952] <... futex resumed>) = 0 [pid 5953] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5952] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5953] <... futex resumed>) = 0 [pid 5952] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5953] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5952] exit_group(0 [pid 5953] <... futex resumed>) = ? [pid 5952] <... exit_group resumed>) = ? [pid 5957] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5953] +++ exited with 0 +++ [pid 5952] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5952, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5958 attached [pid 5958] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 5958 [pid 5958] <... set_robust_list resumed>) = 0 [pid 5958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5958] setpgid(0, 0) = 0 [pid 5958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5958] write(3, "1000", 4) = 4 [pid 5958] close(3) = 0 executing program [pid 5958] write(1, "executing program\n", 18) = 18 [pid 5958] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5958] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5958] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5958] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5958] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5958] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5959 attached => {parent_tid=[5959]}, 88) = 5959 [pid 5959] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5958] rt_sigprocmask(SIG_SETMASK, [], [pid 5959] <... rseq resumed>) = 0 [pid 5958] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5959] set_robust_list(0x7fb72497a9a0, 24 [pid 5958] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5959] <... set_robust_list resumed>) = 0 [pid 5958] <... futex resumed>) = 0 [pid 5959] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5958] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5959] memfd_create("syzkaller", 0) = 3 [pid 5959] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5955] <... write resumed>) = 16777216 [pid 5955] munmap(0x7fb71c400000, 138412032) = 0 [pid 5955] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5955] close(3 [pid 5959] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5955] <... close resumed>) = 0 [pid 5957] <... write resumed>) = 16777216 [pid 5957] munmap(0x7fb71c400000, 138412032 [pid 5955] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5954] <... futex resumed>) = 0 [pid 5955] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5954] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5955] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5954] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5955] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5955] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5954] <... futex resumed>) = 0 [pid 5955] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5954] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5955] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5954] <... futex resumed>) = 0 [pid 5955] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5954] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5955] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5957] <... munmap resumed>) = 0 [pid 5955] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5955] <... futex resumed>) = 1 [pid 5954] <... futex resumed>) = 0 [pid 5957] close(3 [pid 5955] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5954] exit_group(0 [pid 5955] <... futex resumed>) = ? [pid 5954] <... exit_group resumed>) = ? [pid 5955] +++ exited with 0 +++ [pid 5954] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5954, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5960 attached , child_tidptr=0x55556c203690) = 5960 [pid 5960] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5960] setpgid(0, 0) = 0 [pid 5960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5960] write(3, "1000", 4) = 4 [pid 5960] close(3executing program ) = 0 [pid 5960] write(1, "executing program\n", 18) = 18 [pid 5960] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5960] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5960] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5960] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5960] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5960] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5960] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5961 attached [pid 5961] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5960] <... clone3 resumed> => {parent_tid=[5961]}, 88) = 5961 [pid 5961] <... rseq resumed>) = 0 [pid 5961] set_robust_list(0x7fb72497a9a0, 24 [pid 5960] rt_sigprocmask(SIG_SETMASK, [], [pid 5961] <... set_robust_list resumed>) = 0 [pid 5960] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5961] rt_sigprocmask(SIG_SETMASK, [], [pid 5960] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5961] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5960] <... futex resumed>) = 0 [pid 5961] memfd_create("syzkaller", 0 [pid 5960] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5961] <... memfd_create resumed>) = 3 [pid 5961] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5959] <... write resumed>) = 16777216 [pid 5959] munmap(0x7fb71c400000, 138412032 [pid 5961] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5959] <... munmap resumed>) = 0 [pid 5959] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5959] close(3 [pid 5957] <... close resumed>) = 0 [pid 5957] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5956] <... futex resumed>) = 0 [pid 5957] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5956] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5956] <... futex resumed>) = 0 [pid 5957] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5956] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5957] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5957] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5956] <... futex resumed>) = 0 [pid 5957] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5956] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... futex resumed>) = 0 [pid 5956] <... futex resumed>) = 1 [pid 5957] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5956] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5957] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5957] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5956] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] <... futex resumed>) = 0 [pid 5956] exit_group(0) = ? [pid 5957] +++ exited with 0 +++ [pid 5956] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5956, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5962 attached [pid 5962] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5962 [pid 5962] <... set_robust_list resumed>) = 0 [pid 5962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5962] setpgid(0, 0) = 0 [pid 5962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5962] write(3, "1000", 4) = 4 [pid 5962] close(3) = 0 [pid 5962] write(1, "executing program\n", 18) = 18 [pid 5962] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5962] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5962] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5962] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5962] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5962] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5962] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5963 attached => {parent_tid=[5963]}, 88) = 5963 [pid 5963] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5962] rt_sigprocmask(SIG_SETMASK, [], [pid 5963] <... rseq resumed>) = 0 [pid 5962] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5963] set_robust_list(0x7fb72497a9a0, 24 [pid 5962] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... set_robust_list resumed>) = 0 [pid 5962] <... futex resumed>) = 0 [pid 5963] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5962] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5963] memfd_create("syzkaller", 0) = 3 [pid 5963] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5959] <... close resumed>) = 0 [pid 5959] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5958] <... futex resumed>) = 0 [pid 5959] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5958] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5959] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5959] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5958] <... futex resumed>) = 0 [pid 5959] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5958] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5958] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5959] <... futex resumed>) = 0 [pid 5958] <... futex resumed>) = 1 [pid 5959] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5958] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5959] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5959] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5958] <... futex resumed>) = 0 [pid 5959] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5958] exit_group(0 [pid 5959] <... futex resumed>) = ? [pid 5958] <... exit_group resumed>) = ? [pid 5959] +++ exited with 0 +++ [pid 5958] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5958, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5964 attached , child_tidptr=0x55556c203690) = 5964 [pid 5964] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5964] setpgid(0, 0) = 0 [pid 5964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5964] write(3, "1000", 4executing program ) = 4 [pid 5964] close(3) = 0 [pid 5964] write(1, "executing program\n", 18) = 18 [pid 5964] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5964] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5964] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5964] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5964] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5964] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5964] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5965 attached [pid 5965] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5964] <... clone3 resumed> => {parent_tid=[5965]}, 88) = 5965 [pid 5965] <... rseq resumed>) = 0 [pid 5964] rt_sigprocmask(SIG_SETMASK, [], [pid 5965] set_robust_list(0x7fb72497a9a0, 24 [pid 5964] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5965] <... set_robust_list resumed>) = 0 [pid 5964] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5965] rt_sigprocmask(SIG_SETMASK, [], [pid 5964] <... futex resumed>) = 0 [pid 5965] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5964] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5965] memfd_create("syzkaller", 0) = 3 [pid 5965] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5963] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5961] <... write resumed>) = 16777216 [pid 5961] munmap(0x7fb71c400000, 138412032) = 0 [pid 5961] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5961] close(3 [pid 5965] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5963] <... write resumed>) = 16777216 [pid 5963] munmap(0x7fb71c400000, 138412032) = 0 [pid 5963] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5963] close(3 [pid 5961] <... close resumed>) = 0 [pid 5961] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5960] <... futex resumed>) = 0 [pid 5961] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5960] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5960] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5961] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5961] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5960] <... futex resumed>) = 0 [pid 5961] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5960] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5961] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5960] <... futex resumed>) = 0 [pid 5961] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5961] <... futex resumed>) = 0 [pid 5960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5961] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5960] exit_group(0 [pid 5961] <... futex resumed>) = ? [pid 5960] <... exit_group resumed>) = ? [pid 5961] +++ exited with 0 +++ [pid 5960] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5960, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5966 attached , child_tidptr=0x55556c203690) = 5966 [pid 5966] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5966] setpgid(0, 0) = 0 [pid 5966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5966] write(3, "1000", 4) = 4 [pid 5966] close(3) = 0 [pid 5966] write(1, "executing program\n", 18executing program ) = 18 [pid 5966] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5966] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5966] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5966] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5966] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5966] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5966] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5967 attached [pid 5967] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5966] <... clone3 resumed> => {parent_tid=[5967]}, 88) = 5967 [pid 5967] <... rseq resumed>) = 0 [pid 5966] rt_sigprocmask(SIG_SETMASK, [], [pid 5967] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5966] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5967] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5966] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5967] memfd_create("syzkaller", 0 [pid 5966] <... futex resumed>) = 0 [pid 5967] <... memfd_create resumed>) = 3 [pid 5966] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5967] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5963] <... close resumed>) = 0 [pid 5963] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5962] <... futex resumed>) = 0 [pid 5963] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5962] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5962] <... futex resumed>) = 0 [pid 5963] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5962] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5963] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5963] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5962] <... futex resumed>) = 0 [pid 5963] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5962] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5962] <... futex resumed>) = 0 [pid 5963] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5962] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5963] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5963] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5962] <... futex resumed>) = 0 [pid 5963] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5962] exit_group(0 [pid 5963] <... futex resumed>) = ? [pid 5962] <... exit_group resumed>) = ? [pid 5963] +++ exited with 0 +++ [pid 5962] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5962, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5968 ./strace-static-x86_64: Process 5968 attached [pid 5965] <... write resumed>) = 16777216 [pid 5968] set_robust_list(0x55556c2036a0, 24 [pid 5965] munmap(0x7fb71c400000, 138412032 [pid 5968] <... set_robust_list resumed>) = 0 [pid 5968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5968] setpgid(0, 0) = 0 [pid 5968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5967] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5968] <... openat resumed>) = 3 [pid 5965] <... munmap resumed>) = 0 [pid 5965] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5968] write(3, "1000", 4 [pid 5965] close(3 [pid 5968] <... write resumed>) = 4 [pid 5968] close(3) = 0 [pid 5968] write(1, "executing program\n", 18executing program ) = 18 [pid 5968] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5968] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5968] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5968] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5968] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5968] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5968] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5969 attached => {parent_tid=[5969]}, 88) = 5969 [pid 5968] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5968] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5968] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5969] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5969] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5969] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5969] memfd_create("syzkaller", 0) = 3 [pid 5969] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5969] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5965] <... close resumed>) = 0 [pid 5965] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5964] <... futex resumed>) = 0 [pid 5965] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5964] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5967] <... write resumed>) = 16777216 [pid 5964] <... futex resumed>) = 0 [pid 5965] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5967] munmap(0x7fb71c400000, 138412032 [pid 5964] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5965] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5964] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... futex resumed>) = 0 [pid 5965] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5964] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5964] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5965] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5965] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5964] <... futex resumed>) = 0 [pid 5965] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5964] exit_group(0 [pid 5965] <... futex resumed>) = ? [pid 5964] <... exit_group resumed>) = ? [pid 5965] +++ exited with 0 +++ [pid 5964] +++ exited with 0 +++ [pid 5967] <... munmap resumed>) = 0 [pid 5967] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5964, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=39 /* 0.39 s */} --- [pid 5967] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5967] close(3 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5970 ./strace-static-x86_64: Process 5970 attached [pid 5970] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5970] setpgid(0, 0) = 0 [pid 5970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5970] write(3, "1000", 4) = 4 [pid 5970] close(3) = 0 [pid 5970] write(1, "executing program\n", 18) = 18 [pid 5970] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5970] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5970] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5970] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5970] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5970] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5970] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5971 attached => {parent_tid=[5971]}, 88) = 5971 [pid 5970] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5970] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5970] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5971] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5971] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5971] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5971] memfd_create("syzkaller", 0) = 3 [pid 5971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5969] <... write resumed>) = 16777216 [pid 5969] munmap(0x7fb71c400000, 138412032 [pid 5967] <... close resumed>) = 0 [pid 5969] <... munmap resumed>) = 0 [pid 5969] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5967] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5969] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5967] <... futex resumed>) = 1 [pid 5966] <... futex resumed>) = 0 [pid 5966] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5969] close(3 [pid 5967] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5966] <... futex resumed>) = 0 [pid 5967] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5967] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5966] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5967] <... futex resumed>) = 0 [pid 5966] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5967] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5966] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5967] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5966] <... futex resumed>) = 0 [pid 5967] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5966] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5967] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5967] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5966] <... futex resumed>) = 0 [pid 5967] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5966] exit_group(0) = ? [pid 5967] <... futex resumed>) = ? [pid 5967] +++ exited with 0 +++ [pid 5966] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5966, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5972 ./strace-static-x86_64: Process 5972 attached [pid 5972] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5972] setpgid(0, 0) = 0 [pid 5972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5972] write(3, "1000", 4) = 4 executing program [pid 5972] close(3) = 0 [pid 5972] write(1, "executing program\n", 18) = 18 [pid 5972] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5972] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5972] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5972] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5972] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5972] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5972] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5973 attached [pid 5973] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5973] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5973] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5972] <... clone3 resumed> => {parent_tid=[5973]}, 88) = 5973 [pid 5972] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5972] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5972] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5973] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5973] memfd_create("syzkaller", 0) = 3 [pid 5973] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5969] <... close resumed>) = 0 [pid 5969] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5969] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5968] <... futex resumed>) = 0 [pid 5968] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5968] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5969] <... futex resumed>) = 0 [pid 5969] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5969] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5968] <... futex resumed>) = 0 [pid 5969] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5968] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5969] <... futex resumed>) = 0 [pid 5968] <... futex resumed>) = 1 [pid 5969] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5968] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5969] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5969] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5969] <... futex resumed>) = 0 [pid 5969] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5968] exit_group(0 [pid 5969] <... futex resumed>) = ? [pid 5968] <... exit_group resumed>) = ? [pid 5969] +++ exited with 0 +++ [pid 5968] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5968, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5974 attached [pid 5974] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5974 [pid 5974] <... set_robust_list resumed>) = 0 [pid 5973] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5971] <... write resumed>) = 16777216 [pid 5974] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5971] munmap(0x7fb71c400000, 138412032 [pid 5974] <... prctl resumed>) = 0 [pid 5974] setpgid(0, 0) = 0 [pid 5971] <... munmap resumed>) = 0 [pid 5974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5971] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5974] <... openat resumed>) = 3 [pid 5974] write(3, "1000", 4 [pid 5971] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5974] <... write resumed>) = 4 [pid 5974] close(3) = 0 [pid 5974] write(1, "executing program\n", 18executing program ) = 18 [pid 5974] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] close(3 [pid 5974] <... futex resumed>) = 0 [pid 5974] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5974] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5974] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5974] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5974] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5975 attached [pid 5975] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5974] <... clone3 resumed> => {parent_tid=[5975]}, 88) = 5975 [pid 5975] <... rseq resumed>) = 0 [pid 5974] rt_sigprocmask(SIG_SETMASK, [], [pid 5975] set_robust_list(0x7fb72497a9a0, 24 [pid 5974] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5975] <... set_robust_list resumed>) = 0 [pid 5975] rt_sigprocmask(SIG_SETMASK, [], [pid 5974] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5975] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5974] <... futex resumed>) = 0 [pid 5974] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5975] memfd_create("syzkaller", 0) = 3 [pid 5975] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5971] <... close resumed>) = 0 [pid 5975] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5973] <... write resumed>) = 16777216 [pid 5971] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5973] munmap(0x7fb71c400000, 138412032 [pid 5971] <... futex resumed>) = 1 [pid 5970] <... futex resumed>) = 0 [pid 5971] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5970] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5970] <... futex resumed>) = 0 [pid 5971] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5970] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5971] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5971] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5970] <... futex resumed>) = 0 [pid 5971] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5970] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5970] <... futex resumed>) = 0 [pid 5971] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5970] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5971] <... futex resumed>) = 0 [pid 5970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5971] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5970] exit_group(0 [pid 5971] <... futex resumed>) = ? [pid 5970] <... exit_group resumed>) = ? [pid 5971] +++ exited with 0 +++ [pid 5970] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5970, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5973] <... munmap resumed>) = 0 [pid 5973] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5973] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5973] close(3./strace-static-x86_64: Process 5976 attached [pid 5976] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 5976 [pid 5976] <... set_robust_list resumed>) = 0 [pid 5976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5976] setpgid(0, 0) = 0 [pid 5976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5976] write(3, "1000", 4) = 4 [pid 5976] close(3) = 0 executing program [pid 5976] write(1, "executing program\n", 18) = 18 [pid 5976] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5976] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5976] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5976] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5976] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5976] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5977 attached [pid 5977] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5976] <... clone3 resumed> => {parent_tid=[5977]}, 88) = 5977 [pid 5977] <... rseq resumed>) = 0 [pid 5976] rt_sigprocmask(SIG_SETMASK, [], [pid 5977] set_robust_list(0x7fb72497a9a0, 24 [pid 5976] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5977] <... set_robust_list resumed>) = 0 [pid 5977] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5976] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] memfd_create("syzkaller", 0) = 3 [pid 5976] <... futex resumed>) = 0 [pid 5977] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5976] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5973] <... close resumed>) = 0 [pid 5973] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5972] <... futex resumed>) = 0 [pid 5973] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5972] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5973] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5972] <... futex resumed>) = 0 [pid 5973] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5972] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5973] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5972] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5972] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5973] <... futex resumed>) = 0 [pid 5972] <... futex resumed>) = 1 [pid 5973] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5972] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5977] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5973] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5973] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5972] <... futex resumed>) = 0 [pid 5973] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5972] exit_group(0 [pid 5973] <... futex resumed>) = ? [pid 5972] <... exit_group resumed>) = ? [pid 5973] +++ exited with 0 +++ [pid 5972] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5972, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5978 attached [pid 5975] <... write resumed>) = 16777216 [pid 5978] set_robust_list(0x55556c2036a0, 24 [pid 5975] munmap(0x7fb71c400000, 138412032 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 5978 [pid 5978] <... set_robust_list resumed>) = 0 [pid 5978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5978] setpgid(0, 0) = 0 [pid 5978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5978] write(3, "1000", 4) = 4 [pid 5978] close(3 [pid 5975] <... munmap resumed>) = 0 [pid 5978] <... close resumed>) = 0 executing program [pid 5978] write(1, "executing program\n", 18) = 18 [pid 5978] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5978] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5978] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5978] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5978] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5978] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5978] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[5979]}, 88) = 5979 [pid 5978] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5978] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5978] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5975] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5979 attached [pid 5979] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5975] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5979] <... rseq resumed>) = 0 [pid 5979] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5975] close(3 [pid 5979] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5979] memfd_create("syzkaller", 0) = 3 [pid 5979] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5979] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5977] <... write resumed>) = 16777216 [pid 5977] munmap(0x7fb71c400000, 138412032) = 0 [pid 5977] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5977] close(3 [pid 5975] <... close resumed>) = 0 [pid 5975] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5975] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5974] <... futex resumed>) = 0 [pid 5974] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5974] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5975] <... futex resumed>) = 0 [pid 5975] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5975] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5974] <... futex resumed>) = 0 [pid 5974] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5974] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5975] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5975] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5974] <... futex resumed>) = 0 [pid 5974] exit_group(0) = ? [pid 5975] +++ exited with 0 +++ [pid 5974] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5974, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5980 ./strace-static-x86_64: Process 5980 attached [pid 5980] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5980] setpgid(0, 0) = 0 [pid 5980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5980] write(3, "1000", 4) = 4 [pid 5980] close(3) = 0 executing program [pid 5980] write(1, "executing program\n", 18) = 18 [pid 5980] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5980] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5980] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5980] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5980] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5980] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5981 attached => {parent_tid=[5981]}, 88) = 5981 [pid 5980] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5980] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5981] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5980] <... futex resumed>) = 0 [pid 5980] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5981] <... rseq resumed>) = 0 [pid 5981] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5981] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5981] memfd_create("syzkaller", 0) = 3 [pid 5981] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5979] <... write resumed>) = 16777216 [pid 5979] munmap(0x7fb71c400000, 138412032 [pid 5977] <... close resumed>) = 0 [pid 5979] <... munmap resumed>) = 0 [pid 5979] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5977] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5977] <... futex resumed>) = 1 [pid 5976] <... futex resumed>) = 0 [pid 5976] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] close(3 [pid 5977] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5976] <... futex resumed>) = 0 [pid 5977] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5976] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5977] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5976] <... futex resumed>) = 0 [pid 5976] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5976] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5977] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5977] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5976] <... futex resumed>) = 0 [pid 5976] exit_group(0) = ? [pid 5977] +++ exited with 0 +++ [pid 5976] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5976, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5982 ./strace-static-x86_64: Process 5982 attached [pid 5982] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5982] setpgid(0, 0) = 0 [pid 5982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5982] write(3, "1000", 4) = 4 [pid 5982] close(3) = 0 executing program [pid 5982] write(1, "executing program\n", 18) = 18 [pid 5981] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5982] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5982] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5982] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5982] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5982] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5982] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5983 attached [pid 5983] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5982] <... clone3 resumed> => {parent_tid=[5983]}, 88) = 5983 [pid 5983] <... rseq resumed>) = 0 [pid 5982] rt_sigprocmask(SIG_SETMASK, [], [pid 5983] set_robust_list(0x7fb72497a9a0, 24 [pid 5982] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5983] <... set_robust_list resumed>) = 0 [pid 5983] rt_sigprocmask(SIG_SETMASK, [], [pid 5982] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5982] <... futex resumed>) = 0 [pid 5982] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5983] memfd_create("syzkaller", 0) = 3 [pid 5983] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5979] <... close resumed>) = 0 [pid 5979] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5979] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] <... futex resumed>) = 0 [pid 5978] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... futex resumed>) = 0 [pid 5978] <... futex resumed>) = 1 [pid 5979] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5979] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5978] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5979] <... futex resumed>) = 0 [pid 5978] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5979] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... futex resumed>) = 0 [pid 5978] <... futex resumed>) = 1 [pid 5979] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5978] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5979] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5979] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5978] <... futex resumed>) = 0 [pid 5979] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] exit_group(0 [pid 5979] <... futex resumed>) = ? [pid 5978] <... exit_group resumed>) = ? [pid 5979] +++ exited with 0 +++ [pid 5978] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5978, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5984 ./strace-static-x86_64: Process 5984 attached [pid 5984] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5984] setpgid(0, 0) = 0 [pid 5984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5984] write(3, "1000", 4) = 4 [pid 5984] close(3) = 0 [pid 5984] write(1, "executing program\n", 18executing program ) = 18 [pid 5984] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5984] <... futex resumed>) = 0 [pid 5984] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5984] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5984] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5984] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5984] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5984] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5985 attached => {parent_tid=[5985]}, 88) = 5985 [pid 5984] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5985] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5984] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5984] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5985] <... rseq resumed>) = 0 [pid 5985] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5985] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5985] memfd_create("syzkaller", 0) = 3 [pid 5985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5981] <... write resumed>) = 16777216 [pid 5981] munmap(0x7fb71c400000, 138412032) = 0 [pid 5981] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5981] close(3 [pid 5985] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5983] <... write resumed>) = 16777216 [pid 5983] munmap(0x7fb71c400000, 138412032) = 0 [pid 5983] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5983] close(3 [pid 5981] <... close resumed>) = 0 [pid 5981] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5980] <... futex resumed>) = 0 [pid 5981] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5980] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5981] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5980] <... futex resumed>) = 0 [pid 5981] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5980] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5981] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5981] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5980] <... futex resumed>) = 0 [pid 5981] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5980] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5981] <... futex resumed>) = 0 [pid 5980] <... futex resumed>) = 1 [pid 5981] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5980] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5981] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5981] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5980] <... futex resumed>) = 0 [pid 5981] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5980] exit_group(0 [pid 5981] <... futex resumed>) = ? [pid 5980] <... exit_group resumed>) = ? [pid 5981] +++ exited with 0 +++ [pid 5980] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5980, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5986 ./strace-static-x86_64: Process 5986 attached [pid 5986] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5986] setpgid(0, 0) = 0 [pid 5986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5986] write(3, "1000", 4) = 4 executing program [pid 5986] close(3) = 0 [pid 5986] write(1, "executing program\n", 18) = 18 [pid 5986] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5986] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5986] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5986] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5986] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5986] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5987 attached [pid 5987] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5986] <... clone3 resumed> => {parent_tid=[5987]}, 88) = 5987 [pid 5987] set_robust_list(0x7fb72497a9a0, 24 [pid 5986] rt_sigprocmask(SIG_SETMASK, [], [pid 5987] <... set_robust_list resumed>) = 0 [pid 5987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5987] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5986] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5986] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5987] <... futex resumed>) = 0 [pid 5986] <... futex resumed>) = 1 [pid 5987] memfd_create("syzkaller", 0 [pid 5986] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5987] <... memfd_create resumed>) = 3 [pid 5987] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5985] <... write resumed>) = 16777216 [pid 5983] <... close resumed>) = 0 [pid 5983] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] munmap(0x7fb71c400000, 138412032 [pid 5983] <... futex resumed>) = 1 [pid 5983] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5982] <... futex resumed>) = 0 [pid 5982] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... futex resumed>) = 0 [pid 5982] <... futex resumed>) = 1 [pid 5983] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5982] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5983] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5983] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5982] <... futex resumed>) = 0 [pid 5983] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5982] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5982] <... futex resumed>) = 0 [pid 5983] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5983] <... futex resumed>) = 0 [pid 5982] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5982] exit_group(0 [pid 5983] <... futex resumed>) = ? [pid 5982] <... exit_group resumed>) = ? [pid 5983] +++ exited with 0 +++ [pid 5982] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5982, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5988 ./strace-static-x86_64: Process 5988 attached [pid 5988] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5988] setpgid(0, 0) = 0 [pid 5988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5988] write(3, "1000", 4) = 4 [pid 5988] close(3) = 0 executing program [pid 5988] write(1, "executing program\n", 18) = 18 [pid 5988] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5988] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5988] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5985] <... munmap resumed>) = 0 [pid 5988] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5987] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5985] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5988] <... mprotect resumed>) = 0 [pid 5988] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5985] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5988] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5985] close(3 [pid 5988] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5989 attached [pid 5989] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5989] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5989] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5989] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5988] <... clone3 resumed> => {parent_tid=[5989]}, 88) = 5989 [pid 5988] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5988] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5989] <... futex resumed>) = 0 [pid 5988] <... futex resumed>) = 1 [pid 5989] memfd_create("syzkaller", 0 [pid 5988] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5989] <... memfd_create resumed>) = 3 [pid 5989] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5989] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5985] <... close resumed>) = 0 [pid 5985] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5984] <... futex resumed>) = 0 [pid 5985] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5984] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5984] <... futex resumed>) = 0 [pid 5985] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5984] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5985] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5984] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5984] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] <... futex resumed>) = 0 [pid 5984] <... futex resumed>) = 1 [pid 5985] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5984] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5985] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5985] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5984] <... futex resumed>) = 0 [pid 5985] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5984] exit_group(0 [pid 5985] <... futex resumed>) = ? [pid 5984] <... exit_group resumed>) = ? [pid 5985] +++ exited with 0 +++ [pid 5984] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5984, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5990 ./strace-static-x86_64: Process 5990 attached [pid 5990] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5990] setpgid(0, 0) = 0 [pid 5990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5990] write(3, "1000", 4) = 4 [pid 5990] close(3) = 0 executing program [pid 5990] write(1, "executing program\n", 18) = 18 [pid 5990] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5990] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5990] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5990] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5990] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5990] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5990] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5991 attached [pid 5991] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5991] set_robust_list(0x7fb72497a9a0, 24 [pid 5990] <... clone3 resumed> => {parent_tid=[5991]}, 88) = 5991 [pid 5990] rt_sigprocmask(SIG_SETMASK, [], [pid 5991] <... set_robust_list resumed>) = 0 [pid 5991] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5991] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5990] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5990] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5991] <... futex resumed>) = 0 [pid 5990] <... futex resumed>) = 1 [pid 5991] memfd_create("syzkaller", 0 [pid 5990] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5991] <... memfd_create resumed>) = 3 [pid 5991] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5987] <... write resumed>) = 16777216 [pid 5987] munmap(0x7fb71c400000, 138412032) = 0 [pid 5987] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5987] close(3 [pid 5991] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5989] <... write resumed>) = 16777216 [pid 5989] munmap(0x7fb71c400000, 138412032) = 0 [pid 5989] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5989] close(3 [pid 5987] <... close resumed>) = 0 [pid 5987] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5986] <... futex resumed>) = 0 [pid 5987] <... futex resumed>) = 1 [pid 5986] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5987] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5986] <... futex resumed>) = 0 [pid 5987] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5986] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5987] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5986] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5987] <... futex resumed>) = 0 [pid 5986] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5987] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5986] <... futex resumed>) = 0 [pid 5986] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5987] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5987] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5986] <... futex resumed>) = 0 [pid 5987] <... futex resumed>) = 1 [pid 5986] exit_group(0) = ? [pid 5987] +++ exited with 0 +++ [pid 5986] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5986, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5992 attached , child_tidptr=0x55556c203690) = 5992 [pid 5992] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5992] setpgid(0, 0) = 0 [pid 5992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5992] write(3, "1000", 4) = 4 [pid 5992] close(3) = 0 [pid 5992] write(1, "executing program\n", 18executing program ) = 18 [pid 5992] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5991] <... write resumed>) = 16777216 [pid 5992] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5991] munmap(0x7fb71c400000, 138412032 [pid 5992] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5992] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5992] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5992] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5992] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5992] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5993 attached => {parent_tid=[5993]}, 88) = 5993 [pid 5992] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5992] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5992] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5993] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5993] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5993] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5993] memfd_create("syzkaller", 0) = 3 [pid 5993] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5991] <... munmap resumed>) = 0 [pid 5991] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5991] close(3 [pid 5989] <... close resumed>) = 0 [pid 5989] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5988] <... futex resumed>) = 0 [pid 5989] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5988] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5989] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5988] <... futex resumed>) = 0 [pid 5989] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5988] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5989] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5989] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5988] <... futex resumed>) = 0 [pid 5989] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5988] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5989] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5988] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5989] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5989] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5988] <... futex resumed>) = 0 [pid 5988] exit_group(0) = ? [pid 5989] +++ exited with 0 +++ [pid 5988] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5988, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5994 attached , child_tidptr=0x55556c203690) = 5994 [pid 5994] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5994] setpgid(0, 0) = 0 [pid 5994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5994] write(3, "1000", 4) = 4 [pid 5993] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5994] close(3) = 0 [pid 5994] write(1, "executing program\n", 18executing program ) = 18 [pid 5994] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5994] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5994] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5994] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5994] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5994] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5994] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5995 attached => {parent_tid=[5995]}, 88) = 5995 [pid 5994] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5994] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5994] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5995] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 5995] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5995] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5995] memfd_create("syzkaller", 0) = 3 [pid 5995] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5991] <... close resumed>) = 0 [pid 5991] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] <... futex resumed>) = 0 [pid 5990] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5990] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5991] <... futex resumed>) = 1 [pid 5991] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5991] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5990] <... futex resumed>) = 0 [pid 5991] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5990] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5991] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5990] <... futex resumed>) = 0 [pid 5991] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5990] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5991] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5991] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5990] <... futex resumed>) = 0 [pid 5991] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5990] exit_group(0 [pid 5991] <... futex resumed>) = ? [pid 5990] <... exit_group resumed>) = ? [pid 5991] +++ exited with 0 +++ [pid 5990] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5990, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 5996 ./strace-static-x86_64: Process 5996 attached [pid 5996] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5996] setpgid(0, 0) = 0 [pid 5996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5996] write(3, "1000", 4) = 4 [pid 5996] close(3) = 0 executing program [pid 5996] write(1, "executing program\n", 18) = 18 [pid 5996] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5996] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5996] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5996] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5996] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5996] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5996] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[5997]}, 88) = 5997 [pid 5996] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5996] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5996] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5997 attached [pid 5997] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5995] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5997] <... rseq resumed>) = 0 [pid 5997] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5997] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5997] memfd_create("syzkaller", 0) = 3 [pid 5997] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5993] <... write resumed>) = 16777216 [pid 5993] munmap(0x7fb71c400000, 138412032) = 0 [pid 5993] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5993] close(3 [pid 5997] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5995] <... write resumed>) = 16777216 [pid 5993] <... close resumed>) = 0 [pid 5995] munmap(0x7fb71c400000, 138412032 [pid 5993] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5993] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5992] <... futex resumed>) = 0 [pid 5992] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] <... futex resumed>) = 0 [pid 5992] <... futex resumed>) = 1 [pid 5993] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5992] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5993] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5993] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5992] <... futex resumed>) = 0 [pid 5993] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5992] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] <... futex resumed>) = 0 [pid 5992] <... futex resumed>) = 1 [pid 5993] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5992] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5995] <... munmap resumed>) = 0 [pid 5993] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5993] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5992] <... futex resumed>) = 0 [pid 5993] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5992] exit_group(0 [pid 5993] <... futex resumed>) = ? [pid 5992] <... exit_group resumed>) = ? [pid 5993] +++ exited with 0 +++ [pid 5992] +++ exited with 0 +++ [pid 5995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5992, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 5995] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] <... restart_syscall resumed>) = 0 [pid 5995] close(3 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5998 attached [pid 5998] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 5998 [pid 5998] setpgid(0, 0) = 0 [pid 5998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5998] write(3, "1000", 4) = 4 [pid 5998] close(3) = 0 executing program [pid 5998] write(1, "executing program\n", 18) = 18 [pid 5998] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5998] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5998] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5998] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5998] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5998] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5998] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 5999 attached => {parent_tid=[5999]}, 88) = 5999 [pid 5999] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5998] rt_sigprocmask(SIG_SETMASK, [], [pid 5999] <... rseq resumed>) = 0 [pid 5998] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5999] set_robust_list(0x7fb72497a9a0, 24 [pid 5998] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5999] <... set_robust_list resumed>) = 0 [pid 5998] <... futex resumed>) = 0 [pid 5999] rt_sigprocmask(SIG_SETMASK, [], [pid 5998] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5999] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5999] memfd_create("syzkaller", 0) = 3 [pid 5999] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5997] <... write resumed>) = 16777216 [pid 5997] munmap(0x7fb71c400000, 138412032) = 0 [pid 5997] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5997] close(3 [pid 5995] <... close resumed>) = 0 [pid 5995] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5994] <... futex resumed>) = 0 [pid 5995] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5994] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5999] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5995] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5994] <... futex resumed>) = 0 [pid 5995] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5995] <... futex resumed>) = 0 [pid 5995] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5994] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5995] <... futex resumed>) = 0 [pid 5994] <... futex resumed>) = 1 [pid 5995] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5994] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5995] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5995] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] exit_group(0 [pid 5995] <... futex resumed>) = ? [pid 5994] <... exit_group resumed>) = ? [pid 5995] +++ exited with 0 +++ [pid 5994] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5994, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6000 attached , child_tidptr=0x55556c203690) = 6000 [pid 6000] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6000] setpgid(0, 0) = 0 [pid 6000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6000] write(3, "1000", 4) = 4 [pid 6000] close(3) = 0 executing program [pid 6000] write(1, "executing program\n", 18) = 18 [pid 6000] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6000] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6000] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6000] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6000] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6000] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6000] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6001 attached => {parent_tid=[6001]}, 88) = 6001 [pid 6001] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6000] rt_sigprocmask(SIG_SETMASK, [], [pid 6001] <... rseq resumed>) = 0 [pid 6000] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6001] set_robust_list(0x7fb72497a9a0, 24 [pid 6000] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6001] <... set_robust_list resumed>) = 0 [pid 6000] <... futex resumed>) = 0 [pid 6001] rt_sigprocmask(SIG_SETMASK, [], [pid 6000] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6001] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6001] memfd_create("syzkaller", 0) = 3 [pid 6001] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5997] <... close resumed>) = 0 [pid 5997] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5996] <... futex resumed>) = 0 [pid 5997] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5996] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5997] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5996] <... futex resumed>) = 0 [pid 5997] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5996] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5997] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5997] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5996] <... futex resumed>) = 0 [pid 5997] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5996] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5997] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5996] <... futex resumed>) = 0 [pid 5997] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5996] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5997] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5997] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5997] <... futex resumed>) = 0 [pid 5997] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5996] exit_group(0 [pid 5997] <... futex resumed>) = ? [pid 5996] <... exit_group resumed>) = ? [pid 5997] +++ exited with 0 +++ [pid 5996] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5996, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6002 attached , child_tidptr=0x55556c203690) = 6002 [pid 6002] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6002] setpgid(0, 0) = 0 [pid 5999] <... write resumed>) = 16777216 [pid 6002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5999] munmap(0x7fb71c400000, 138412032 [pid 6002] write(3, "1000", 4 [pid 6001] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6002] <... write resumed>) = 4 [pid 6002] close(3) = 0 [pid 5999] <... munmap resumed>) = 0 executing program [pid 6002] write(1, "executing program\n", 18 [pid 5999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6002] <... write resumed>) = 18 [pid 5999] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6002] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5999] close(3 [pid 6002] <... futex resumed>) = 0 [pid 6002] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6002] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6002] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6002] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6002] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6002] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6003 attached => {parent_tid=[6003]}, 88) = 6003 [pid 6003] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6002] rt_sigprocmask(SIG_SETMASK, [], [pid 6003] <... rseq resumed>) = 0 [pid 6002] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6003] set_robust_list(0x7fb72497a9a0, 24 [pid 6002] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6003] <... set_robust_list resumed>) = 0 [pid 6002] <... futex resumed>) = 0 [pid 6003] rt_sigprocmask(SIG_SETMASK, [], [pid 6002] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6003] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6003] memfd_create("syzkaller", 0) = 3 [pid 6003] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5999] <... close resumed>) = 0 [pid 5999] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5998] <... futex resumed>) = 0 [pid 5998] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5998] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5999] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5999] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5998] <... futex resumed>) = 0 [pid 5999] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5998] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5999] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5998] <... futex resumed>) = 0 [pid 5999] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5998] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5999] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5999] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5998] <... futex resumed>) = 0 [pid 5999] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5998] exit_group(0) = ? [pid 5999] <... futex resumed>) = ? [pid 5999] +++ exited with 0 +++ [pid 5998] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5998, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6001] <... write resumed>) = 16777216 [pid 6003] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6001] munmap(0x7fb71c400000, 138412032 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6004 attached , child_tidptr=0x55556c203690) = 6004 [pid 6004] set_robust_list(0x55556c2036a0, 24 [pid 6001] <... munmap resumed>) = 0 [pid 6004] <... set_robust_list resumed>) = 0 [pid 6001] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6004] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6001] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6001] close(3 [pid 6004] <... prctl resumed>) = 0 [pid 6004] setpgid(0, 0) = 0 [pid 6004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6004] write(3, "1000", 4) = 4 [pid 6004] close(3executing program ) = 0 [pid 6004] write(1, "executing program\n", 18) = 18 [pid 6004] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6004] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6004] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6004] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6004] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6004] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6004] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6005]}, 88) = 6005 [pid 6004] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 6005 attached [pid 6004] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6004] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6005] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6005] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6005] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6005] memfd_create("syzkaller", 0) = 3 [pid 6005] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6001] <... close resumed>) = 0 [pid 6003] <... write resumed>) = 16777216 [pid 6001] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6000] <... futex resumed>) = 0 [pid 6001] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6000] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6001] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6001] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6003] munmap(0x7fb71c400000, 138412032 [pid 6005] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6000] <... futex resumed>) = 1 [pid 6001] <... futex resumed>) = 0 [pid 6001] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6000] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6000] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6001] <... futex resumed>) = 0 [pid 6000] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6001] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6001] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6000] <... futex resumed>) = 0 [pid 6001] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6000] exit_group(0) = ? [pid 6001] <... futex resumed>) = ? [pid 6001] +++ exited with 0 +++ [pid 6000] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6000, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6003] <... munmap resumed>) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6003] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6003] close(3 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6006 ./strace-static-x86_64: Process 6006 attached [pid 6006] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6006] setpgid(0, 0) = 0 [pid 6006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6006] write(3, "1000", 4) = 4 executing program [pid 6006] close(3) = 0 [pid 6006] write(1, "executing program\n", 18) = 18 [pid 6006] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6006] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6006] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6006] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6006] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6006] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6006] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6007 attached => {parent_tid=[6007]}, 88) = 6007 [pid 6006] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6006] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6006] <... futex resumed>) = 0 [pid 6007] <... rseq resumed>) = 0 [pid 6006] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6007] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6007] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6007] memfd_create("syzkaller", 0) = 3 [pid 6007] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6007] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6003] <... close resumed>) = 0 [pid 6003] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6002] <... futex resumed>) = 0 [pid 6003] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6002] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6002] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6003] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6003] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6002] <... futex resumed>) = 0 [pid 6002] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6003] <... futex resumed>) = 1 [pid 6002] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6003] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6003] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6002] <... futex resumed>) = 0 [pid 6003] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6002] exit_group(0 [pid 6005] <... write resumed>) = 16777216 [pid 6003] <... futex resumed>) = ? [pid 6002] <... exit_group resumed>) = ? [pid 6003] +++ exited with 0 +++ [pid 6002] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6002, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 6005] munmap(0x7fb71c400000, 138412032 [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6008 [pid 6005] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 6008 attached [pid 6005] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6008] set_robust_list(0x55556c2036a0, 24 [pid 6005] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6008] <... set_robust_list resumed>) = 0 [pid 6008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6008] setpgid(0, 0) = 0 [pid 6005] close(3 [pid 6008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6008] write(3, "1000", 4) = 4 [pid 6008] close(3) = 0 executing program [pid 6008] write(1, "executing program\n", 18) = 18 [pid 6008] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6008] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6008] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6008] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6008] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6008] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6008] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6009 attached => {parent_tid=[6009]}, 88) = 6009 [pid 6008] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6008] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6008] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6009] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6009] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6009] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6009] memfd_create("syzkaller", 0) = 3 [pid 6009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6007] <... write resumed>) = 16777216 [pid 6005] <... close resumed>) = 0 [pid 6007] munmap(0x7fb71c400000, 138412032 [pid 6005] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6009] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6005] <... futex resumed>) = 1 [pid 6004] <... futex resumed>) = 0 [pid 6004] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6004] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6005] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6005] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6004] <... futex resumed>) = 0 [pid 6005] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6005] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6004] <... futex resumed>) = 0 [pid 6005] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6004] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6005] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6004] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6005] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] exit_group(0) = ? [pid 6005] <... futex resumed>) = ? [pid 6005] +++ exited with 0 +++ [pid 6004] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6004, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6010 ./strace-static-x86_64: Process 6010 attached [pid 6007] <... munmap resumed>) = 0 [pid 6010] set_robust_list(0x55556c2036a0, 24 [pid 6007] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6007] close(3 [pid 6010] <... set_robust_list resumed>) = 0 [pid 6010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6010] setpgid(0, 0) = 0 [pid 6010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6010] write(3, "1000", 4) = 4 [pid 6010] close(3) = 0 executing program [pid 6010] write(1, "executing program\n", 18) = 18 [pid 6010] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6010] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6010] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6010] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6010] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6010] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6010] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6011 attached [pid 6011] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6010] <... clone3 resumed> => {parent_tid=[6011]}, 88) = 6011 [pid 6011] <... rseq resumed>) = 0 [pid 6010] rt_sigprocmask(SIG_SETMASK, [], [pid 6011] set_robust_list(0x7fb72497a9a0, 24 [pid 6010] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6011] <... set_robust_list resumed>) = 0 [pid 6010] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6011] rt_sigprocmask(SIG_SETMASK, [], [pid 6010] <... futex resumed>) = 0 [pid 6011] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6010] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6011] memfd_create("syzkaller", 0) = 3 [pid 6011] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6007] <... close resumed>) = 0 [pid 6007] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6006] <... futex resumed>) = 0 [pid 6006] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6006] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6007] <... futex resumed>) = 1 [pid 6007] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6007] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6006] <... futex resumed>) = 0 [pid 6006] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6006] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6007] <... futex resumed>) = 1 [pid 6007] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6007] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6006] <... futex resumed>) = 0 [pid 6007] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6006] exit_group(0 [pid 6007] <... futex resumed>) = ? [pid 6006] <... exit_group resumed>) = ? [pid 6007] +++ exited with 0 +++ [pid 6006] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6006, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6012 attached , child_tidptr=0x55556c203690) = 6012 [pid 6012] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6012] setpgid(0, 0) = 0 [pid 6012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6012] write(3, "1000", 4) = 4 [pid 6012] close(3) = 0 executing program [pid 6011] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6012] write(1, "executing program\n", 18) = 18 [pid 6012] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6012] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6012] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6012] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6012] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6012] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6012] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6013 attached => {parent_tid=[6013]}, 88) = 6013 [pid 6012] rt_sigprocmask(SIG_SETMASK, [], [pid 6009] <... write resumed>) = 16777216 [pid 6012] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6013] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6012] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6009] munmap(0x7fb71c400000, 138412032 [pid 6012] <... futex resumed>) = 0 [pid 6013] <... rseq resumed>) = 0 [pid 6012] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6013] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6013] rt_sigprocmask(SIG_SETMASK, [], [pid 6009] <... munmap resumed>) = 0 [pid 6013] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6009] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6013] memfd_create("syzkaller", 0 [pid 6009] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6009] close(3 [pid 6013] <... memfd_create resumed>) = 3 [pid 6013] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6011] <... write resumed>) = 16777216 [pid 6011] munmap(0x7fb71c400000, 138412032) = 0 [pid 6011] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6013] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6011] close(3 [pid 6009] <... close resumed>) = 0 [pid 6009] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6008] <... futex resumed>) = 0 [pid 6008] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6008] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6009] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6009] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6008] <... futex resumed>) = 0 [pid 6009] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6008] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6009] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6008] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6009] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6009] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6008] <... futex resumed>) = 0 [pid 6009] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6008] exit_group(0 [pid 6009] <... futex resumed>) = ? [pid 6008] <... exit_group resumed>) = ? [pid 6009] +++ exited with 0 +++ [pid 6008] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6008, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6014 attached , child_tidptr=0x55556c203690) = 6014 [pid 6014] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6014] setpgid(0, 0) = 0 [pid 6014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6014] write(3, "1000", 4) = 4 executing program [pid 6014] close(3) = 0 [pid 6014] write(1, "executing program\n", 18) = 18 [pid 6014] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6014] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6014] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6014] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6014] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6014] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6015 attached [pid 6015] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6014] <... clone3 resumed> => {parent_tid=[6015]}, 88) = 6015 [pid 6015] <... rseq resumed>) = 0 [pid 6014] rt_sigprocmask(SIG_SETMASK, [], [pid 6015] set_robust_list(0x7fb72497a9a0, 24 [pid 6014] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6015] <... set_robust_list resumed>) = 0 [pid 6014] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] rt_sigprocmask(SIG_SETMASK, [], [pid 6014] <... futex resumed>) = 0 [pid 6015] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6014] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6015] memfd_create("syzkaller", 0) = 3 [pid 6015] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6011] <... close resumed>) = 0 [pid 6011] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6010] <... futex resumed>) = 0 [pid 6011] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6010] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6010] <... futex resumed>) = 0 [pid 6011] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6010] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6011] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] <... futex resumed>) = 0 [pid 6010] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6011] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6010] <... futex resumed>) = 0 [pid 6011] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6010] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6011] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6010] exit_group(0 [pid 6011] <... futex resumed>) = ? [pid 6010] <... exit_group resumed>) = ? [pid 6011] +++ exited with 0 +++ [pid 6010] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6010, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6016 attached , child_tidptr=0x55556c203690) = 6016 [pid 6016] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6016] setpgid(0, 0) = 0 [pid 6016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6016] write(3, "1000", 4) = 4 [pid 6016] close(3executing program ) = 0 [pid 6016] write(1, "executing program\n", 18) = 18 [pid 6016] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6016] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6016] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6016] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6016] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6016] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6016] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6017 attached => {parent_tid=[6017]}, 88) = 6017 [pid 6017] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6016] rt_sigprocmask(SIG_SETMASK, [], [pid 6015] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6016] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6017] <... rseq resumed>) = 0 [pid 6016] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6017] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6017] rt_sigprocmask(SIG_SETMASK, [], [pid 6016] <... futex resumed>) = 0 [pid 6013] <... write resumed>) = 16777216 [pid 6017] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6016] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6017] memfd_create("syzkaller", 0) = 3 [pid 6017] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6013] munmap(0x7fb71c400000, 138412032) = 0 [pid 6013] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6013] close(3 [pid 6017] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6015] <... write resumed>) = 16777216 [pid 6015] munmap(0x7fb71c400000, 138412032) = 0 [pid 6015] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6015] close(3 [pid 6013] <... close resumed>) = 0 [pid 6013] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6012] <... futex resumed>) = 0 [pid 6013] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6012] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6013] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6012] <... futex resumed>) = 0 [pid 6013] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6012] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6013] <... futex resumed>) = 0 [pid 6012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6013] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6012] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6013] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6013] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6013] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 6012] <... futex resumed>) = 1 [pid 6013] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6012] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6012] exit_group(0 [pid 6013] <... futex resumed>) = ? [pid 6012] <... exit_group resumed>) = ? [pid 6013] +++ exited with 0 +++ [pid 6012] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6012, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6018 ./strace-static-x86_64: Process 6018 attached [pid 6018] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6018] setpgid(0, 0) = 0 [pid 6018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6018] write(3, "1000", 4executing program ) = 4 [pid 6018] close(3) = 0 [pid 6018] write(1, "executing program\n", 18) = 18 [pid 6018] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6018] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6018] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6018] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6018] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6018] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6018] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6019 attached => {parent_tid=[6019]}, 88) = 6019 [pid 6019] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6018] rt_sigprocmask(SIG_SETMASK, [], [pid 6019] <... rseq resumed>) = 0 [pid 6018] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6019] set_robust_list(0x7fb72497a9a0, 24 [pid 6018] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... set_robust_list resumed>) = 0 [pid 6018] <... futex resumed>) = 0 [pid 6019] rt_sigprocmask(SIG_SETMASK, [], [pid 6018] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6019] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6019] memfd_create("syzkaller", 0) = 3 [pid 6019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6017] <... write resumed>) = 16777216 [pid 6017] munmap(0x7fb71c400000, 138412032) = 0 [pid 6015] <... close resumed>) = 0 [pid 6017] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6015] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6014] <... futex resumed>) = 0 [pid 6014] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6014] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6015] <... futex resumed>) = 1 [pid 6015] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6017] close(3 [pid 6015] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6015] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6014] <... futex resumed>) = 0 [pid 6014] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6014] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6015] <... futex resumed>) = 1 [pid 6015] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6015] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6015] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6014] <... futex resumed>) = 0 [pid 6014] exit_group(0) = ? [pid 6015] <... futex resumed>) = ? [pid 6015] +++ exited with 0 +++ [pid 6014] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6014, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6019] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6020 ./strace-static-x86_64: Process 6020 attached [pid 6020] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6020] setpgid(0, 0) = 0 [pid 6020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6020] write(3, "1000", 4) = 4 [pid 6020] close(3) = 0 [pid 6020] write(1, "executing program\n", 18executing program ) = 18 [pid 6020] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6020] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6020] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6020] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6020] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6021]}, 88) = 6021 [pid 6020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6020] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6020] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6021 attached [pid 6021] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6021] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6021] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6021] memfd_create("syzkaller", 0) = 3 [pid 6021] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6017] <... close resumed>) = 0 [pid 6021] <... mmap resumed>) = 0x7fb71c400000 [pid 6017] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6016] <... futex resumed>) = 0 [pid 6017] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6016] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6016] <... futex resumed>) = 0 [pid 6017] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6016] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6017] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6017] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6016] <... futex resumed>) = 0 [pid 6016] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6017] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6016] <... futex resumed>) = 0 [pid 6016] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6017] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6017] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] <... futex resumed>) = 0 [pid 6017] <... futex resumed>) = 1 [pid 6017] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6016] exit_group(0) = ? [pid 6017] <... futex resumed>) = ? [pid 6017] +++ exited with 0 +++ [pid 6016] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6016, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6022 attached , child_tidptr=0x55556c203690) = 6022 [pid 6022] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6022] setpgid(0, 0) = 0 [pid 6022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6022] write(3, "1000", 4) = 4 [pid 6022] close(3) = 0 executing program [pid 6022] write(1, "executing program\n", 18) = 18 [pid 6022] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6022] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6022] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6022] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6022] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6022] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6023]}, 88) = 6023 [pid 6022] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6023 attached NULL, 8) = 0 [pid 6023] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6022] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6023] <... rseq resumed>) = 0 [pid 6022] <... futex resumed>) = 0 [pid 6023] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6022] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6023] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6023] memfd_create("syzkaller", 0) = 3 [pid 6023] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6021] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6019] <... write resumed>) = 16777216 [pid 6019] munmap(0x7fb71c400000, 138412032) = 0 [pid 6019] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6019] close(3 [pid 6023] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6019] <... close resumed>) = 0 [pid 6019] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6018] <... futex resumed>) = 0 [pid 6019] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6018] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6018] <... futex resumed>) = 0 [pid 6019] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6018] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6018] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6019] <... futex resumed>) = 1 [pid 6018] <... futex resumed>) = 0 [pid 6018] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 6019] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6019] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6018] <... futex resumed>) = 0 [pid 6019] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6018] exit_group(0) = ? [pid 6019] <... futex resumed>) = ? [pid 6019] +++ exited with 0 +++ [pid 6018] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6018, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6024 attached , child_tidptr=0x55556c203690) = 6024 [pid 6024] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6024] setpgid(0, 0) = 0 [pid 6024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6024] write(3, "1000", 4) = 4 executing program [pid 6024] close(3) = 0 [pid 6024] write(1, "executing program\n", 18) = 18 [pid 6024] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6023] <... write resumed>) = 16777216 [pid 6024] <... futex resumed>) = 0 [pid 6024] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6023] munmap(0x7fb71c400000, 138412032 [pid 6024] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6024] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6024] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6024] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6021] <... write resumed>) = 16777216 ./strace-static-x86_64: Process 6025 attached [pid 6021] munmap(0x7fb71c400000, 138412032 [pid 6024] <... clone3 resumed> => {parent_tid=[6025]}, 88) = 6025 [pid 6025] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6025] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6025] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6025] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6024] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6024] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6025] <... futex resumed>) = 0 [pid 6025] memfd_create("syzkaller", 0) = 3 [pid 6025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6021] <... munmap resumed>) = 0 [pid 6021] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6021] close(3 [pid 6023] <... munmap resumed>) = 0 [pid 6023] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6023] close(3 [pid 6025] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6023] <... close resumed>) = 0 [pid 6023] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6022] <... futex resumed>) = 0 [pid 6022] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6022] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6023] <... futex resumed>) = 1 [pid 6023] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6023] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6023] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6022] <... futex resumed>) = 0 [pid 6022] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] <... close resumed>) = 0 [pid 6023] <... futex resumed>) = 0 [pid 6022] <... futex resumed>) = 1 [pid 6023] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6022] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6023] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6023] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6022] <... futex resumed>) = 0 [pid 6023] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6022] exit_group(0 [pid 6023] <... futex resumed>) = ? [pid 6022] <... exit_group resumed>) = ? [pid 6023] +++ exited with 0 +++ [pid 6022] +++ exited with 0 +++ [pid 6021] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6020] <... futex resumed>) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6022, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 6020] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6021] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6020] <... futex resumed>) = 0 [pid 6021] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6020] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6021] <... futex resumed>) = 0 [pid 6020] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6021] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6020] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6021] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] <... futex resumed>) = 0 [pid 6020] exit_group(0) = ? [pid 6021] <... futex resumed>) = ? [pid 6021] +++ exited with 0 +++ [pid 6020] +++ exited with 0 +++ [pid 5872] <... restart_syscall resumed>) = 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6020, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6026 attached ./strace-static-x86_64: Process 6027 attached [pid 6026] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6026 [pid 6026] <... set_robust_list resumed>) = 0 [pid 6027] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6027] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6026] setpgid(0, 0) = 0 [pid 6027] <... prctl resumed>) = 0 [pid 6027] setpgid(0, 0 [pid 6026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6027] <... setpgid resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6027 [pid 6027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6026] <... openat resumed>) = 3 [pid 6026] write(3, "1000", 4) = 4 [pid 6026] close(3 [pid 6027] <... openat resumed>) = 3 [pid 6026] <... close resumed>) = 0 executing program [pid 6026] write(1, "executing program\n", 18 [pid 6027] write(3, "1000", 4 [pid 6026] <... write resumed>) = 18 [pid 6027] <... write resumed>) = 4 [pid 6026] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6027] close(3 [pid 6026] <... futex resumed>) = 0 [pid 6027] <... close resumed>) = 0 [pid 6026] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6027] write(1, "executing program\n", 18 [pid 6026] <... rt_sigaction resumed>NULL, 8) = 0 executing program [pid 6027] <... write resumed>) = 18 [pid 6026] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6027] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6026] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6027] <... futex resumed>) = 0 [pid 6026] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6027] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6026] <... mmap resumed>) = 0x7fb72495a000 [pid 6027] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6026] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6027] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6026] <... mprotect resumed>) = 0 [pid 6027] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6026] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6027] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6026] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6027] <... mprotect resumed>) = 0 [pid 6026] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6028 attached [pid 6028] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6026] <... clone3 resumed> => {parent_tid=[6028]}, 88) = 6028 [pid 6028] <... rseq resumed>) = 0 [pid 6026] rt_sigprocmask(SIG_SETMASK, [], [pid 6028] set_robust_list(0x7fb72497a9a0, 24 [pid 6026] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6028] <... set_robust_list resumed>) = 0 [pid 6026] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6028] rt_sigprocmask(SIG_SETMASK, [], [pid 6026] <... futex resumed>) = 0 [pid 6028] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6027] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6026] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6027] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6028] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 6029 attached [pid 6028] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6027] <... clone3 resumed> => {parent_tid=[6029]}, 88) = 6029 [pid 6029] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6028] <... mmap resumed>) = 0x7fb71c400000 [pid 6029] <... rseq resumed>) = 0 [pid 6027] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6027] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6027] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6029] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6029] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6029] memfd_create("syzkaller", 0) = 3 [pid 6029] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6025] <... write resumed>) = 16777216 [pid 6025] munmap(0x7fb71c400000, 138412032) = 0 [pid 6025] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6025] close(3 [pid 6029] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6028] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6025] <... close resumed>) = 0 [pid 6025] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6024] <... futex resumed>) = 0 [pid 6025] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6024] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6025] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6024] <... futex resumed>) = 0 [pid 6025] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6024] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6025] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6025] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6024] <... futex resumed>) = 0 [pid 6025] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6024] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6025] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6024] <... futex resumed>) = 0 [pid 6025] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6024] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6025] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6025] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6024] <... futex resumed>) = 0 [pid 6025] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6024] exit_group(0 [pid 6025] <... futex resumed>) = ? [pid 6024] <... exit_group resumed>) = ? [pid 6025] +++ exited with 0 +++ [pid 6024] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6024, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6030 attached , child_tidptr=0x55556c203690) = 6030 [pid 6030] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6030] setpgid(0, 0) = 0 [pid 6030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6030] write(3, "1000", 4) = 4 [pid 6030] close(3) = 0 executing program [pid 6030] write(1, "executing program\n", 18) = 18 [pid 6030] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6030] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6030] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6030] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6030] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6030] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6031 attached [pid 6031] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6030] <... clone3 resumed> => {parent_tid=[6031]}, 88) = 6031 [pid 6031] <... rseq resumed>) = 0 [pid 6030] rt_sigprocmask(SIG_SETMASK, [], [pid 6031] set_robust_list(0x7fb72497a9a0, 24 [pid 6030] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6031] <... set_robust_list resumed>) = 0 [pid 6030] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] rt_sigprocmask(SIG_SETMASK, [], [pid 6030] <... futex resumed>) = 0 [pid 6031] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6030] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6031] memfd_create("syzkaller", 0) = 3 [pid 6031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6029] <... write resumed>) = 16777216 [pid 6029] munmap(0x7fb71c400000, 138412032 [pid 6028] <... write resumed>) = 16777216 [pid 6029] <... munmap resumed>) = 0 [pid 6029] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6029] close(3 [pid 6028] munmap(0x7fb71c400000, 138412032 [pid 6031] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6028] <... munmap resumed>) = 0 [pid 6028] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6028] close(3 [pid 6031] <... write resumed>) = 16777216 [pid 6031] munmap(0x7fb71c400000, 138412032 [pid 6029] <... close resumed>) = 0 [pid 6029] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6027] <... futex resumed>) = 0 [pid 6029] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6027] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6029] <... futex resumed>) = 0 [pid 6027] <... futex resumed>) = 1 [pid 6029] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6027] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6029] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6029] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6027] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6029] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6027] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6029] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6029] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6027] <... futex resumed>) = 0 [pid 6029] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6027] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6029] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6027] <... futex resumed>) = 0 [pid 6027] exit_group(0) = ? [pid 6029] +++ exited with 0 +++ [pid 6027] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6027, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6032 ./strace-static-x86_64: Process 6032 attached [pid 6032] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6032] setpgid(0, 0) = 0 [pid 6032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6032] write(3, "1000", 4) = 4 [pid 6032] close(3) = 0 executing program [pid 6032] write(1, "executing program\n", 18) = 18 [pid 6032] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6032] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6028] <... close resumed>) = 0 [pid 6032] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6031] <... munmap resumed>) = 0 [pid 6032] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6031] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6028] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6031] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6028] <... futex resumed>) = 1 [pid 6026] <... futex resumed>) = 0 [pid 6032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6028] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6026] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] <... mmap resumed>) = 0x7fb72495a000 [pid 6031] close(3 [pid 6028] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6026] <... futex resumed>) = 0 [pid 6032] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6028] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6026] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6032] <... mprotect resumed>) = 0 [pid 6026] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6032] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6028] <... futex resumed>) = 0 [pid 6026] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6028] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6026] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6033 attached [pid 6026] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6033] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6032] <... clone3 resumed> => {parent_tid=[6033]}, 88) = 6033 [pid 6028] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6033] <... rseq resumed>) = 0 [pid 6032] rt_sigprocmask(SIG_SETMASK, [], [pid 6033] set_robust_list(0x7fb72497a9a0, 24 [pid 6032] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6033] <... set_robust_list resumed>) = 0 [pid 6032] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] rt_sigprocmask(SIG_SETMASK, [], [pid 6032] <... futex resumed>) = 0 [pid 6033] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6032] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6028] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] memfd_create("syzkaller", 0 [pid 6028] <... futex resumed>) = 1 [pid 6026] <... futex resumed>) = 0 [pid 6028] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6026] exit_group(0) = ? [pid 6033] <... memfd_create resumed>) = 3 [pid 6028] <... futex resumed>) = ? [pid 6033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6028] +++ exited with 0 +++ [pid 6026] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6026, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6034 attached , child_tidptr=0x55556c203690) = 6034 [pid 6034] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6034] setpgid(0, 0) = 0 [pid 6034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6034] write(3, "1000", 4) = 4 [pid 6034] close(3) = 0 executing program [pid 6034] write(1, "executing program\n", 18) = 18 [pid 6034] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6034] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6034] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6034] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6034] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6034] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6035 attached [pid 6035] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6034] <... clone3 resumed> => {parent_tid=[6035]}, 88) = 6035 [pid 6035] <... rseq resumed>) = 0 [pid 6034] rt_sigprocmask(SIG_SETMASK, [], [pid 6035] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6034] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6035] rt_sigprocmask(SIG_SETMASK, [], [pid 6034] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6035] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6034] <... futex resumed>) = 0 [pid 6034] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6035] memfd_create("syzkaller", 0) = 3 [pid 6035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6033] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6031] <... close resumed>) = 0 [pid 6031] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6030] <... futex resumed>) = 0 [pid 6031] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6030] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6030] <... futex resumed>) = 0 [pid 6031] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6030] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6031] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6031] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6030] <... futex resumed>) = 0 [pid 6031] <... futex resumed>) = 1 [pid 6030] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6030] <... futex resumed>) = 0 [pid 6031] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6030] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6031] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6030] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6030] exit_group(0 [pid 6031] <... futex resumed>) = ? [pid 6030] <... exit_group resumed>) = ? [pid 6031] +++ exited with 0 +++ [pid 6030] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6030, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6036 attached , child_tidptr=0x55556c203690) = 6036 [pid 6036] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6036] setpgid(0, 0) = 0 [pid 6036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6036] write(3, "1000", 4) = 4 [pid 6036] close(3) = 0 [pid 6036] write(1, "executing program\n", 18) = 18 [pid 6036] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6036] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6036] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6036] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6036] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6037 attached [pid 6037] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6037] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6037] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6037] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6036] <... clone3 resumed> => {parent_tid=[6037]}, 88) = 6037 [pid 6036] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6036] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] <... futex resumed>) = 0 [pid 6036] <... futex resumed>) = 1 [pid 6037] memfd_create("syzkaller", 0 [pid 6036] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6037] <... memfd_create resumed>) = 3 [pid 6037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6035] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6033] <... write resumed>) = 16777216 [pid 6033] munmap(0x7fb71c400000, 138412032 [pid 6037] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6033] <... munmap resumed>) = 0 [pid 6033] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6033] close(3) = 0 [pid 6033] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6033] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6032] <... futex resumed>) = 0 [pid 6033] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6032] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6033] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6033] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6033] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6032] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6033] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6033] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6032] exit_group(0 [pid 6033] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] <... exit_group resumed>) = ? [pid 6033] <... futex resumed>) = ? [pid 6033] +++ exited with 0 +++ [pid 6032] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6032, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6038 ./strace-static-x86_64: Process 6038 attached [pid 6038] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6038] setpgid(0, 0) = 0 [pid 6038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6038] write(3, "1000", 4) = 4 [pid 6038] close(3executing program ) = 0 [pid 6038] write(1, "executing program\n", 18) = 18 [pid 6038] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6038] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6038] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6038] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6038] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6038] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6039]}, 88) = 6039 ./strace-static-x86_64: Process 6039 attached [pid 6038] rt_sigprocmask(SIG_SETMASK, [], [pid 6039] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6039] set_robust_list(0x7fb72497a9a0, 24 [pid 6038] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6039] <... set_robust_list resumed>) = 0 [pid 6038] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] rt_sigprocmask(SIG_SETMASK, [], [pid 6038] <... futex resumed>) = 0 [pid 6039] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6038] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6039] memfd_create("syzkaller", 0 [pid 6035] <... write resumed>) = 16777216 [pid 6039] <... memfd_create resumed>) = 3 [pid 6039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6035] munmap(0x7fb71c400000, 138412032 [pid 6037] <... write resumed>) = 16777216 [pid 6037] munmap(0x7fb71c400000, 138412032 [pid 6035] <... munmap resumed>) = 0 [pid 6037] <... munmap resumed>) = 0 [pid 6037] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6037] close(3 [pid 6035] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6035] close(3 [pid 6039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6037] <... close resumed>) = 0 [pid 6037] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6036] <... futex resumed>) = 0 [pid 6036] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6037] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6036] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6037] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6037] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6037] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6036] <... futex resumed>) = 0 [pid 6036] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] <... futex resumed>) = 0 [pid 6036] <... futex resumed>) = 1 [pid 6037] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6036] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6037] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6037] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6036] <... futex resumed>) = 0 [pid 6037] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6036] exit_group(0 [pid 6037] <... futex resumed>) = ? [pid 6036] <... exit_group resumed>) = ? [pid 6037] +++ exited with 0 +++ [pid 6036] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6036, si_uid=0, si_status=0, si_utime=0, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6040 ./strace-static-x86_64: Process 6040 attached [pid 6040] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6040] setpgid(0, 0) = 0 [pid 6040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6040] write(3, "1000", 4) = 4 [pid 6040] close(3) = 0 executing program [pid 6040] write(1, "executing program\n", 18) = 18 [pid 6040] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6040] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6040] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6040] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6040] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6040] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6041 attached => {parent_tid=[6041]}, 88) = 6041 [pid 6040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6041] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6040] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6041] set_robust_list(0x7fb72497a9a0, 24 [pid 6040] <... futex resumed>) = 0 [pid 6041] <... set_robust_list resumed>) = 0 [pid 6041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6041] memfd_create("syzkaller", 0) = 3 [pid 6040] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6035] <... close resumed>) = 0 [pid 6041] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6035] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6041] <... mmap resumed>) = 0x7fb71c400000 [pid 6035] <... futex resumed>) = 1 [pid 6034] <... futex resumed>) = 0 [pid 6034] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6035] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6034] <... futex resumed>) = 0 [pid 6035] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6034] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6035] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6034] <... futex resumed>) = 0 [pid 6034] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6035] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6034] <... futex resumed>) = 0 [pid 6035] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6034] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6035] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6034] <... futex resumed>) = 0 [pid 6034] exit_group(0) = ? [pid 6035] +++ exited with 0 +++ [pid 6034] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6034, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=39 /* 0.39 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6042 attached , child_tidptr=0x55556c203690) = 6042 [pid 6042] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6042] setpgid(0, 0) = 0 [pid 6042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6042] write(3, "1000", 4) = 4 [pid 6042] close(3) = 0 [pid 6042] write(1, "executing program\n", 18executing program ) = 18 [pid 6042] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6042] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6042] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6042] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6042] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6042] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6043 attached => {parent_tid=[6043]}, 88) = 6043 [pid 6042] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6042] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6043] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6042] <... futex resumed>) = 0 [pid 6043] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6043] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6043] memfd_create("syzkaller", 0 [pid 6042] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6043] <... memfd_create resumed>) = 3 [pid 6043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6039] <... write resumed>) = 16777216 [pid 6039] munmap(0x7fb71c400000, 138412032 [pid 6041] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6039] <... munmap resumed>) = 0 [pid 6039] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6039] close(3 [pid 6043] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6039] <... close resumed>) = 0 [pid 6039] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6038] <... futex resumed>) = 0 [pid 6039] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6038] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6038] <... futex resumed>) = 0 [pid 6039] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6038] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6038] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... futex resumed>) = 0 [pid 6038] <... futex resumed>) = 1 [pid 6039] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6038] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6039] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6039] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6038] exit_group(0 [pid 6039] <... futex resumed>) = ? [pid 6038] <... exit_group resumed>) = ? [pid 6039] +++ exited with 0 +++ [pid 6038] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6038, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6044 ./strace-static-x86_64: Process 6044 attached [pid 6044] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6044] setpgid(0, 0) = 0 [pid 6044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6044] write(3, "1000", 4) = 4 [pid 6044] close(3executing program ) = 0 [pid 6044] write(1, "executing program\n", 18) = 18 [pid 6044] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6044] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6044] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6044] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6044] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6044] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6045 attached => {parent_tid=[6045]}, 88) = 6045 [pid 6044] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6045] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6044] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6045] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6044] <... futex resumed>) = 0 [pid 6045] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6044] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6045] memfd_create("syzkaller", 0) = 3 [pid 6045] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6041] <... write resumed>) = 16777216 [pid 6041] munmap(0x7fb71c400000, 138412032 [pid 6043] <... write resumed>) = 16777216 [pid 6043] munmap(0x7fb71c400000, 138412032 [pid 6041] <... munmap resumed>) = 0 [pid 6041] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6043] <... munmap resumed>) = 0 [pid 6041] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6043] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6041] close(3 [pid 6043] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6043] close(3 [pid 6045] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6041] <... close resumed>) = 0 [pid 6041] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6040] <... futex resumed>) = 0 [pid 6040] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6040] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6041] <... futex resumed>) = 1 [pid 6041] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6041] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6040] <... futex resumed>) = 0 [pid 6041] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6040] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6041] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6041] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6040] <... futex resumed>) = 0 [pid 6041] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6040] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6041] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6040] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6041] <... futex resumed>) = 0 [pid 6040] exit_group(0) = ? [pid 6041] +++ exited with 0 +++ [pid 6040] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6040, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=40 /* 0.40 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6046 attached , child_tidptr=0x55556c203690) = 6046 [pid 6046] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6046] setpgid(0, 0) = 0 [pid 6046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6046] write(3, "1000", 4) = 4 [pid 6046] close(3) = 0 executing program [pid 6046] write(1, "executing program\n", 18) = 18 [pid 6046] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6046] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6046] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6046] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6046] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6046] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6043] <... close resumed>) = 0 [pid 6046] <... clone3 resumed> => {parent_tid=[6047]}, 88) = 6047 ./strace-static-x86_64: Process 6047 attached [pid 6046] rt_sigprocmask(SIG_SETMASK, [], [pid 6043] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6047] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6046] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6043] <... futex resumed>) = 1 [pid 6042] <... futex resumed>) = 0 [pid 6047] <... rseq resumed>) = 0 [pid 6046] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6042] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6047] set_robust_list(0x7fb72497a9a0, 24 [pid 6046] <... futex resumed>) = 0 [pid 6043] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6042] <... futex resumed>) = 0 [pid 6047] <... set_robust_list resumed>) = 0 [pid 6046] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6043] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6042] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6047] rt_sigprocmask(SIG_SETMASK, [], [pid 6043] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6047] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6043] <... futex resumed>) = 0 [pid 6042] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6047] memfd_create("syzkaller", 0 [pid 6042] <... futex resumed>) = 0 [pid 6042] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6047] <... memfd_create resumed>) = 3 [pid 6043] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6043] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6047] <... mmap resumed>) = 0x7fb71c400000 [pid 6043] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6042] <... futex resumed>) = 0 [pid 6043] <... futex resumed>) = 1 [pid 6042] exit_group(0) = ? [pid 6043] +++ exited with 0 +++ [pid 6042] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6042, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=30 /* 0.30 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6048 attached , child_tidptr=0x55556c203690) = 6048 [pid 6048] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6048] setpgid(0, 0) = 0 [pid 6048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6048] write(3, "1000", 4) = 4 [pid 6048] close(3executing program ) = 0 [pid 6048] write(1, "executing program\n", 18) = 18 [pid 6048] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6048] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6048] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6048] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6048] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6048] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6049 attached => {parent_tid=[6049]}, 88) = 6049 [pid 6049] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6045] <... write resumed>) = 16777216 [pid 6048] rt_sigprocmask(SIG_SETMASK, [], [pid 6049] <... rseq resumed>) = 0 [pid 6048] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6045] munmap(0x7fb71c400000, 138412032 [pid 6048] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6049] set_robust_list(0x7fb72497a9a0, 24 [pid 6048] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6049] <... set_robust_list resumed>) = 0 [pid 6049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6049] memfd_create("syzkaller", 0) = 3 [pid 6049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6045] <... munmap resumed>) = 0 [pid 6045] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6049] <... mmap resumed>) = 0x7fb71c400000 [pid 6045] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6045] close(3 [pid 6047] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6049] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6045] <... close resumed>) = 0 [pid 6045] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6047] <... write resumed>) = 16777216 [pid 6045] <... futex resumed>) = 1 [pid 6044] <... futex resumed>) = 0 [pid 6047] munmap(0x7fb71c400000, 138412032 [pid 6045] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6044] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6044] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6045] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6045] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6044] <... futex resumed>) = 0 [pid 6044] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6044] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6045] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6045] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6044] <... futex resumed>) = 0 [pid 6044] exit_group(0) = ? [pid 6045] +++ exited with 0 +++ [pid 6044] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6044, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6047] <... munmap resumed>) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6047] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6047] close(3 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6050 ./strace-static-x86_64: Process 6050 attached [pid 6050] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6050] setpgid(0, 0) = 0 [pid 6050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6050] write(3, "1000", 4executing program ) = 4 [pid 6050] close(3) = 0 [pid 6050] write(1, "executing program\n", 18) = 18 [pid 6050] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6050] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6050] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6050] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6050] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6050] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6050] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6051 attached => {parent_tid=[6051]}, 88) = 6051 [pid 6051] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6051] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6051] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6051] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6050] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6050] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6049] <... write resumed>) = 16777216 [pid 6051] <... futex resumed>) = 0 [pid 6050] <... futex resumed>) = 1 [pid 6051] memfd_create("syzkaller", 0 [pid 6050] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6049] munmap(0x7fb71c400000, 138412032 [pid 6051] <... memfd_create resumed>) = 3 [pid 6051] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6049] <... munmap resumed>) = 0 [pid 6049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6049] close(3 [pid 6051] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6047] <... close resumed>) = 0 [pid 6047] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6046] <... futex resumed>) = 0 [pid 6047] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6046] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6047] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6046] <... futex resumed>) = 0 [pid 6047] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6047] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6046] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6047] <... futex resumed>) = 0 [pid 6046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6047] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6046] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6046] <... futex resumed>) = 0 [pid 6047] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6046] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6047] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6047] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6046] <... futex resumed>) = 0 [pid 6047] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6046] exit_group(0 [pid 6047] <... futex resumed>) = ? [pid 6046] <... exit_group resumed>) = ? [pid 6047] +++ exited with 0 +++ [pid 6046] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6046, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6052 ./strace-static-x86_64: Process 6052 attached [pid 6052] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6052] setpgid(0, 0) = 0 [pid 6052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6052] write(3, "1000", 4) = 4 [pid 6052] close(3executing program ) = 0 [pid 6052] write(1, "executing program\n", 18) = 18 [pid 6052] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6052] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6052] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6052] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6052] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6052] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6053 attached => {parent_tid=[6053]}, 88) = 6053 [pid 6053] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6052] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6052] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6053] set_robust_list(0x7fb72497a9a0, 24 [pid 6049] <... close resumed>) = 0 [pid 6053] <... set_robust_list resumed>) = 0 [pid 6053] rt_sigprocmask(SIG_SETMASK, [], [pid 6049] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6049] <... futex resumed>) = 1 [pid 6048] <... futex resumed>) = 0 [pid 6053] memfd_create("syzkaller", 0 [pid 6049] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6048] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6053] <... memfd_create resumed>) = 3 [pid 6049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6049] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6049] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6053] <... mmap resumed>) = 0x7fb71c400000 [pid 6049] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6048] <... futex resumed>) = 0 [pid 6048] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6048] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6049] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6049] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6048] <... futex resumed>) = 0 [pid 6049] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] exit_group(0) = ? [pid 6049] <... futex resumed>) = ? [pid 6049] +++ exited with 0 +++ [pid 6048] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6048, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6054 attached [pid 6054] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6054] setpgid(0, 0 [pid 6051] <... write resumed>) = 16777216 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6054 [pid 6054] <... setpgid resumed>) = 0 [pid 6054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6054] write(3, "1000", 4) = 4 executing program [pid 6054] close(3) = 0 [pid 6054] write(1, "executing program\n", 18) = 18 [pid 6054] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6054] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6054] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6054] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6054] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6054] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6051] munmap(0x7fb71c400000, 138412032 [pid 6054] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6054] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6055 attached => {parent_tid=[6055]}, 88) = 6055 [pid 6051] <... munmap resumed>) = 0 [pid 6055] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6054] rt_sigprocmask(SIG_SETMASK, [], [pid 6055] <... rseq resumed>) = 0 [pid 6054] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6055] set_robust_list(0x7fb72497a9a0, 24 [pid 6054] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6054] <... futex resumed>) = 0 [pid 6055] <... set_robust_list resumed>) = 0 [pid 6054] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6055] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6051] close(3 [pid 6055] memfd_create("syzkaller", 0) = 3 [pid 6055] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6053] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6055] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6051] <... close resumed>) = 0 [pid 6051] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6050] <... futex resumed>) = 0 [pid 6051] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6050] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6050] <... futex resumed>) = 0 [pid 6051] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6050] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6051] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6051] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6050] <... futex resumed>) = 0 [pid 6051] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6050] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6050] <... futex resumed>) = 0 [pid 6051] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6050] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6051] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6051] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6050] <... futex resumed>) = 0 [pid 6051] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6050] exit_group(0 [pid 6051] <... futex resumed>) = ? [pid 6050] <... exit_group resumed>) = ? [pid 6053] <... write resumed>) = 16777216 [pid 6051] +++ exited with 0 +++ [pid 6050] +++ exited with 0 +++ [pid 6053] munmap(0x7fb71c400000, 138412032 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6050, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6056 attached , child_tidptr=0x55556c203690) = 6056 [pid 6056] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6056] setpgid(0, 0) = 0 [pid 6056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6056] write(3, "1000", 4executing program ) = 4 [pid 6056] close(3) = 0 [pid 6056] write(1, "executing program\n", 18) = 18 [pid 6056] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6056] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6056] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6056] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6056] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6053] <... munmap resumed>) = 0 [pid 6056] <... mprotect resumed>) = 0 [pid 6056] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6056] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6057 attached [pid 6057] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6056] <... clone3 resumed> => {parent_tid=[6057]}, 88) = 6057 [pid 6057] <... rseq resumed>) = 0 [pid 6056] rt_sigprocmask(SIG_SETMASK, [], [pid 6057] set_robust_list(0x7fb72497a9a0, 24 [pid 6056] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6057] <... set_robust_list resumed>) = 0 [pid 6056] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6057] rt_sigprocmask(SIG_SETMASK, [], [pid 6056] <... futex resumed>) = 0 [pid 6057] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6056] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6053] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6057] memfd_create("syzkaller", 0 [pid 6053] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6057] <... memfd_create resumed>) = 3 [pid 6053] close(3 [pid 6057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6055] <... write resumed>) = 16777216 [pid 6057] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6055] munmap(0x7fb71c400000, 138412032 [pid 6053] <... close resumed>) = 0 [pid 6053] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6052] <... futex resumed>) = 0 [pid 6052] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6052] <... futex resumed>) = 0 [pid 6053] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6053] <... futex resumed>) = 0 [pid 6052] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6053] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6052] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6052] <... futex resumed>) = 0 [pid 6053] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6053] <... futex resumed>) = 0 [pid 6052] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6053] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6052] exit_group(0) = ? [pid 6053] <... futex resumed>) = ? [pid 6055] <... munmap resumed>) = 0 [pid 6055] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6053] +++ exited with 0 +++ [pid 6052] +++ exited with 0 +++ [pid 6055] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6052, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 6055] close(3 [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6058 ./strace-static-x86_64: Process 6058 attached [pid 6058] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6058] setpgid(0, 0) = 0 [pid 6058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6058] write(3, "1000", 4) = 4 [pid 6058] close(3) = 0 executing program [pid 6058] write(1, "executing program\n", 18) = 18 [pid 6058] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6058] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6058] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6058] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6058] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6058] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6059 attached => {parent_tid=[6059]}, 88) = 6059 [pid 6058] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6058] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6058] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6059] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6059] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6059] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6059] memfd_create("syzkaller", 0) = 3 [pid 6059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6055] <... close resumed>) = 0 [pid 6055] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] <... futex resumed>) = 0 [pid 6055] <... futex resumed>) = 1 [pid 6054] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6054] <... futex resumed>) = 0 [pid 6055] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6054] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6055] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6055] <... futex resumed>) = 0 [pid 6054] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6055] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6054] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6055] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6055] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6054] <... futex resumed>) = 0 [pid 6055] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6054] exit_group(0) = ? [pid 6055] <... futex resumed>) = ? [pid 6055] +++ exited with 0 +++ [pid 6054] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6054, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6057] <... write resumed>) = 16777216 [pid 6057] munmap(0x7fb71c400000, 138412032 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6060 ./strace-static-x86_64: Process 6060 attached [pid 6060] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6060] setpgid(0, 0) = 0 [pid 6060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6060] write(3, "1000", 4) = 4 [pid 6057] <... munmap resumed>) = 0 [pid 6060] close(3) = 0 [pid 6057] openat(AT_FDCWD, "/dev/loop4", O_RDWRexecuting program [pid 6060] write(1, "executing program\n", 18) = 18 [pid 6060] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6057] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6060] <... futex resumed>) = 0 [pid 6060] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6057] close(3 [pid 6060] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6059] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6060] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6060] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6060] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6060] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6061 attached => {parent_tid=[6061]}, 88) = 6061 [pid 6061] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6060] rt_sigprocmask(SIG_SETMASK, [], [pid 6061] <... rseq resumed>) = 0 [pid 6060] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6061] set_robust_list(0x7fb72497a9a0, 24 [pid 6060] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6061] <... set_robust_list resumed>) = 0 [pid 6060] <... futex resumed>) = 0 [pid 6061] rt_sigprocmask(SIG_SETMASK, [], [pid 6060] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6061] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6061] memfd_create("syzkaller", 0) = 3 [pid 6061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6057] <... close resumed>) = 0 [pid 6061] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6057] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6056] <... futex resumed>) = 0 [pid 6056] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6056] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6057] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6057] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6056] <... futex resumed>) = 0 [pid 6057] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6056] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6056] <... futex resumed>) = 0 [pid 6057] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6056] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6057] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6057] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6056] <... futex resumed>) = 0 [pid 6057] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6056] exit_group(0 [pid 6057] <... futex resumed>) = ? [pid 6056] <... exit_group resumed>) = ? [pid 6057] +++ exited with 0 +++ [pid 6056] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6056, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6062 ./strace-static-x86_64: Process 6062 attached [pid 6062] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6062] setpgid(0, 0) = 0 [pid 6062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6062] write(3, "1000", 4) = 4 [pid 6062] close(3) = 0 executing program [pid 6062] write(1, "executing program\n", 18) = 18 [pid 6062] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6062] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6062] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6062] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6062] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6062] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6062] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6063 attached => {parent_tid=[6063]}, 88) = 6063 [pid 6062] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6063] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6063] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6063] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6063] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6062] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6063] <... futex resumed>) = 0 [pid 6062] <... futex resumed>) = 1 [pid 6063] memfd_create("syzkaller", 0 [pid 6062] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6063] <... memfd_create resumed>) = 3 [pid 6063] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6059] <... write resumed>) = 16777216 [pid 6059] munmap(0x7fb71c400000, 138412032) = 0 [pid 6059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6059] close(3 [pid 6063] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6059] <... close resumed>) = 0 [pid 6059] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6058] <... futex resumed>) = 0 [pid 6059] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6058] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6059] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6058] <... futex resumed>) = 0 [pid 6059] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6059] <... futex resumed>) = 0 [pid 6058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6059] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6058] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6058] <... futex resumed>) = 0 [pid 6059] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6058] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6059] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6059] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... futex resumed>) = 0 [pid 6059] <... futex resumed>) = 1 [pid 6058] exit_group(0 [pid 6059] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6058] <... exit_group resumed>) = ? [pid 6059] <... futex resumed>) = ? [pid 6059] +++ exited with 0 +++ [pid 6058] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6058, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWRexecuting program ) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6064 attached , child_tidptr=0x55556c203690) = 6064 [pid 6064] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6064] setpgid(0, 0) = 0 [pid 6064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6064] write(3, "1000", 4) = 4 [pid 6064] close(3) = 0 [pid 6064] write(1, "executing program\n", 18) = 18 [pid 6064] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6064] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6064] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6064] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6064] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6061] <... write resumed>) = 16777216 [pid 6064] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6061] munmap(0x7fb71c400000, 138412032./strace-static-x86_64: Process 6065 attached [pid 6065] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6064] <... clone3 resumed> => {parent_tid=[6065]}, 88) = 6065 [pid 6065] set_robust_list(0x7fb72497a9a0, 24 [pid 6064] rt_sigprocmask(SIG_SETMASK, [], [pid 6065] <... set_robust_list resumed>) = 0 [pid 6064] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6065] rt_sigprocmask(SIG_SETMASK, [], [pid 6064] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6064] <... futex resumed>) = 0 [pid 6065] memfd_create("syzkaller", 0) = 3 [pid 6064] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6061] <... munmap resumed>) = 0 [pid 6061] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6061] close(3 [pid 6063] <... write resumed>) = 16777216 [pid 6063] munmap(0x7fb71c400000, 138412032) = 0 [pid 6063] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6065] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6063] close(3) = 0 [pid 6061] <... close resumed>) = 0 [pid 6063] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6061] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6063] <... futex resumed>) = 1 [pid 6063] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6062] <... futex resumed>) = 0 [pid 6061] <... futex resumed>) = 1 [pid 6060] <... futex resumed>) = 0 [pid 6062] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6061] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6060] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6061] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6060] <... futex resumed>) = 0 [pid 6060] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6062] <... futex resumed>) = 1 [pid 6063] <... futex resumed>) = 0 [pid 6062] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6061] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6063] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6061] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6063] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6061] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6060] <... futex resumed>) = 0 [pid 6063] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6061] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6060] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6063] <... futex resumed>) = 1 [pid 6062] <... futex resumed>) = 0 [pid 6061] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6060] <... futex resumed>) = 0 [pid 6063] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6062] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6061] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6060] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6062] <... futex resumed>) = 0 [pid 6061] <... futex resumed>) = 0 [pid 6060] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6063] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6062] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6061] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6063] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6060] exit_group(0 [pid 6063] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6061] <... futex resumed>) = ? [pid 6063] <... futex resumed>) = 1 [pid 6062] <... futex resumed>) = 0 [pid 6061] +++ exited with 0 +++ [pid 6060] <... exit_group resumed>) = ? [pid 6063] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6062] exit_group(0) = ? [pid 6063] <... futex resumed>) = ? [pid 6060] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6060, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6063] +++ exited with 0 +++ [pid 6062] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6062, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 5869] <... restart_syscall resumed>) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6066 attached , child_tidptr=0x55556c203690) = 6066 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6066] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6066] <... set_robust_list resumed>) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6066] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6067 attached ) = 0 [pid 6066] setpgid(0, 0) = 0 [pid 6066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6067] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6067 [pid 6067] <... set_robust_list resumed>) = 0 [pid 6066] <... openat resumed>) = 3 [pid 6067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6066] write(3, "1000", 4 [pid 6067] setpgid(0, 0) = 0 [pid 6066] <... write resumed>) = 4 [pid 6066] close(3 [pid 6067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6066] <... close resumed>) = 0 executing program [pid 6066] write(1, "executing program\n", 18) = 18 [pid 6066] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... openat resumed>) = 3 [pid 6066] <... futex resumed>) = 0 [pid 6066] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6067] write(3, "1000", 4 [pid 6066] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6067] <... write resumed>) = 4 [pid 6067] close(3executing program [pid 6066] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6067] <... close resumed>) = 0 [pid 6067] write(1, "executing program\n", 18 [pid 6066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6067] <... write resumed>) = 18 [pid 6066] <... mmap resumed>) = 0x7fb72495a000 [pid 6067] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6066] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6067] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6066] <... mprotect resumed>) = 0 [pid 6067] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6067] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6066] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6067] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6066] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6067] <... mmap resumed>) = 0x7fb72495a000 [pid 6066] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6068 attached [pid 6067] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6066] <... clone3 resumed> => {parent_tid=[6068]}, 88) = 6068 [pid 6066] rt_sigprocmask(SIG_SETMASK, [], [pid 6067] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6066] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6066] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6066] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6067] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6067] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6069 attached [pid 6069] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6069] set_robust_list(0x7fb72497a9a0, 24 [pid 6067] <... clone3 resumed> => {parent_tid=[6069]}, 88) = 6069 [pid 6069] <... set_robust_list resumed>) = 0 [pid 6068] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6069] rt_sigprocmask(SIG_SETMASK, [], [pid 6068] <... rseq resumed>) = 0 [pid 6067] rt_sigprocmask(SIG_SETMASK, [], [pid 6069] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6068] set_robust_list(0x7fb72497a9a0, 24 [pid 6067] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6069] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6068] <... set_robust_list resumed>) = 0 [pid 6067] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] rt_sigprocmask(SIG_SETMASK, [], [pid 6069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6068] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6067] <... futex resumed>) = 0 [pid 6069] memfd_create("syzkaller", 0 [pid 6068] memfd_create("syzkaller", 0 [pid 6067] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6068] <... memfd_create resumed>) = 3 [pid 6068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6069] <... memfd_create resumed>) = 3 [pid 6069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6065] <... write resumed>) = 16777216 [pid 6065] munmap(0x7fb71c400000, 138412032) = 0 [pid 6065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6065] close(3 [pid 6068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6065] <... close resumed>) = 0 [pid 6065] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6064] <... futex resumed>) = 0 [pid 6064] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6065] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6064] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6065] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6065] <... futex resumed>) = 0 [pid 6065] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6064] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6064] <... futex resumed>) = 0 [pid 6065] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6064] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6065] <... futex resumed>) = 0 [pid 6065] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6064] exit_group(0) = ? [pid 6065] <... futex resumed>) = ? [pid 6065] +++ exited with 0 +++ [pid 6064] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6064, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6070 attached , child_tidptr=0x55556c203690) = 6070 [pid 6070] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6070] setpgid(0, 0) = 0 [pid 6070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6070] write(3, "1000", 4) = 4 [pid 6070] close(3) = 0 [pid 6070] write(1, "executing program\n", 18executing program ) = 18 [pid 6070] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6070] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6070] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6070] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6071 attached => {parent_tid=[6071]}, 88) = 6071 [pid 6070] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6071] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6070] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6071] <... rseq resumed>) = 0 [pid 6071] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6071] memfd_create("syzkaller", 0 [pid 6070] <... futex resumed>) = 0 [pid 6071] <... memfd_create resumed>) = 3 [pid 6070] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6068] <... write resumed>) = 16777216 [pid 6068] munmap(0x7fb71c400000, 138412032 [pid 6069] <... write resumed>) = 16777216 [pid 6068] <... munmap resumed>) = 0 [pid 6069] munmap(0x7fb71c400000, 138412032 [pid 6068] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6068] close(3 [pid 6071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6069] <... munmap resumed>) = 0 [pid 6069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6069] close(3 [pid 6068] <... close resumed>) = 0 [pid 6068] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6068] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6066] <... futex resumed>) = 0 [pid 6066] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] <... futex resumed>) = 0 [pid 6066] <... futex resumed>) = 1 [pid 6068] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6068] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6068] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6066] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6066] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] <... futex resumed>) = 0 [pid 6068] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6066] <... futex resumed>) = 1 [pid 6068] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6066] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6068] <... futex resumed>) = 0 [pid 6066] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6068] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6066] exit_group(0 [pid 6068] <... futex resumed>) = ? [pid 6066] <... exit_group resumed>) = ? [pid 6068] +++ exited with 0 +++ [pid 6066] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6066, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6072 ./strace-static-x86_64: Process 6072 attached [pid 6072] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6072] setpgid(0, 0) = 0 [pid 6072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6072] write(3, "1000", 4) = 4 [pid 6072] close(3executing program ) = 0 [pid 6072] write(1, "executing program\n", 18) = 18 [pid 6072] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6072] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6072] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6072] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6072] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6072] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6072] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6073 attached => {parent_tid=[6073]}, 88) = 6073 [pid 6073] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6072] rt_sigprocmask(SIG_SETMASK, [], [pid 6073] <... rseq resumed>) = 0 [pid 6072] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6073] set_robust_list(0x7fb72497a9a0, 24 [pid 6072] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6073] <... set_robust_list resumed>) = 0 [pid 6072] <... futex resumed>) = 0 [pid 6073] rt_sigprocmask(SIG_SETMASK, [], [pid 6072] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6073] memfd_create("syzkaller", 0 [pid 6069] <... close resumed>) = 0 [pid 6069] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6073] <... memfd_create resumed>) = 3 [pid 6069] <... futex resumed>) = 1 [pid 6067] <... futex resumed>) = 0 [pid 6073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6069] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6067] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6073] <... mmap resumed>) = 0x7fb71c400000 [pid 6067] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6069] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6069] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6067] <... futex resumed>) = 0 [pid 6069] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6067] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6067] <... futex resumed>) = 0 [pid 6069] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6067] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6069] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6067] <... futex resumed>) = 0 [pid 6069] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6067] exit_group(0 [pid 6069] <... futex resumed>) = ? [pid 6067] <... exit_group resumed>) = ? [pid 6069] +++ exited with 0 +++ [pid 6067] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6067, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6074 attached , child_tidptr=0x55556c203690) = 6074 [pid 6074] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6074] setpgid(0, 0) = 0 [pid 6074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6074] write(3, "1000", 4) = 4 [pid 6074] close(3) = 0 executing program [pid 6074] write(1, "executing program\n", 18) = 18 [pid 6074] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6071] <... write resumed>) = 16777216 [pid 6074] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6071] munmap(0x7fb71c400000, 138412032 [pid 6074] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6074] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6074] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6075 attached => {parent_tid=[6075]}, 88) = 6075 [pid 6074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6074] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6074] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6075] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6075] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6075] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6075] memfd_create("syzkaller", 0) = 3 [pid 6075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6071] <... munmap resumed>) = 0 [pid 6073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6071] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6071] close(3 [pid 6075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6071] <... close resumed>) = 0 [pid 6071] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6070] <... futex resumed>) = 0 [pid 6071] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6070] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6070] <... futex resumed>) = 0 [pid 6070] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6071] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6071] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6070] <... futex resumed>) = 0 [pid 6070] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6070] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6071] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6071] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] <... futex resumed>) = 0 [pid 6070] exit_group(0) = ? [pid 6071] <... futex resumed>) = ? [pid 6071] +++ exited with 0 +++ [pid 6070] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6070, si_uid=0, si_status=0, si_utime=0, si_stime=39 /* 0.39 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6076 attached , child_tidptr=0x55556c203690) = 6076 [pid 6076] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6076] setpgid(0, 0) = 0 [pid 6076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6076] write(3, "1000", 4) = 4 [pid 6076] close(3) = 0 executing program [pid 6076] write(1, "executing program\n", 18) = 18 [pid 6076] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6076] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6076] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6076] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6076] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6076] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6077 attached [pid 6077] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6076] <... clone3 resumed> => {parent_tid=[6077]}, 88) = 6077 [pid 6077] <... rseq resumed>) = 0 [pid 6076] rt_sigprocmask(SIG_SETMASK, [], [pid 6077] set_robust_list(0x7fb72497a9a0, 24 [pid 6076] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6077] <... set_robust_list resumed>) = 0 [pid 6076] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6077] rt_sigprocmask(SIG_SETMASK, [], [pid 6076] <... futex resumed>) = 0 [pid 6077] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6076] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6077] memfd_create("syzkaller", 0 [pid 6073] <... write resumed>) = 16777216 [pid 6077] <... memfd_create resumed>) = 3 [pid 6077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6073] munmap(0x7fb71c400000, 138412032 [pid 6077] <... mmap resumed>) = 0x7fb71c400000 [pid 6073] <... munmap resumed>) = 0 [pid 6073] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6073] close(3 [pid 6075] <... write resumed>) = 16777216 [pid 6075] munmap(0x7fb71c400000, 138412032 [pid 6077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6075] <... munmap resumed>) = 0 [pid 6075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6075] close(3 [pid 6073] <... close resumed>) = 0 [pid 6073] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6072] <... futex resumed>) = 0 [pid 6073] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6072] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6073] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6072] <... futex resumed>) = 0 [pid 6073] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6072] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6073] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6072] <... futex resumed>) = 0 [pid 6072] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6072] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6073] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6073] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6072] <... futex resumed>) = 0 [pid 6072] exit_group(0) = ? [pid 6073] +++ exited with 0 +++ [pid 6072] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6072, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6078 attached , child_tidptr=0x55556c203690) = 6078 [pid 6078] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6078] setpgid(0, 0) = 0 [pid 6078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6078] write(3, "1000", 4) = 4 [pid 6078] close(3) = 0 [pid 6078] write(1, "executing program\n", 18executing program ) = 18 [pid 6078] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6078] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6078] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6078] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6078] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6078] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6079 attached => {parent_tid=[6079]}, 88) = 6079 [pid 6079] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6078] rt_sigprocmask(SIG_SETMASK, [], [pid 6077] <... write resumed>) = 16777216 [pid 6078] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6078] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6077] munmap(0x7fb71c400000, 138412032 [pid 6079] <... rseq resumed>) = 0 [pid 6078] <... futex resumed>) = 0 [pid 6079] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6079] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6078] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6079] memfd_create("syzkaller", 0) = 3 [pid 6079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6077] <... munmap resumed>) = 0 [pid 6077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6077] close(3 [pid 6075] <... close resumed>) = 0 [pid 6075] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6075] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6074] <... futex resumed>) = 0 [pid 6074] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6075] <... futex resumed>) = 0 [pid 6074] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6075] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6075] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6074] <... futex resumed>) = 0 [pid 6075] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6074] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6074] <... futex resumed>) = 0 [pid 6075] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6074] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6075] <... futex resumed>) = 0 [pid 6074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6075] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6074] exit_group(0 [pid 6075] <... futex resumed>) = ? [pid 6074] <... exit_group resumed>) = ? [pid 6075] +++ exited with 0 +++ [pid 6074] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6074, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6080 attached , child_tidptr=0x55556c203690) = 6080 [pid 6080] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6080] setpgid(0, 0) = 0 [pid 6080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6080] write(3, "1000", 4executing program ) = 4 [pid 6080] close(3) = 0 [pid 6080] write(1, "executing program\n", 18) = 18 [pid 6080] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6080] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6080] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6080] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6080] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6080] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6081 attached => {parent_tid=[6081]}, 88) = 6081 [pid 6081] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6081] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6080] rt_sigprocmask(SIG_SETMASK, [], [pid 6081] rt_sigprocmask(SIG_SETMASK, [], [pid 6080] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6081] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6080] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] memfd_create("syzkaller", 0 [pid 6080] <... futex resumed>) = 0 [pid 6080] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6081] <... memfd_create resumed>) = 3 [pid 6081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6077] <... close resumed>) = 0 [pid 6077] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6076] <... futex resumed>) = 0 [pid 6077] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6076] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6076] <... futex resumed>) = 0 [pid 6077] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6076] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6077] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6077] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6077] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6076] <... futex resumed>) = 0 [pid 6076] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6077] <... futex resumed>) = 0 [pid 6076] <... futex resumed>) = 1 [pid 6077] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6076] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6077] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6077] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6076] <... futex resumed>) = 0 [pid 6077] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6076] exit_group(0) = ? [pid 6077] <... futex resumed>) = ? [pid 6077] +++ exited with 0 +++ [pid 6076] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6076, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6082 ./strace-static-x86_64: Process 6082 attached [pid 6082] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6082] setpgid(0, 0) = 0 [pid 6082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6082] write(3, "1000", 4) = 4 [pid 6082] close(3) = 0 [pid 6082] write(1, "executing program\n", 18executing program ) = 18 [pid 6082] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6082] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6082] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6082] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6082] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6083 attached => {parent_tid=[6083]}, 88) = 6083 [pid 6082] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6082] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6082] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6083] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6083] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6083] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6083] memfd_create("syzkaller", 0) = 3 [pid 6083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6079] <... write resumed>) = 16777216 [pid 6079] munmap(0x7fb71c400000, 138412032) = 0 [pid 6079] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6079] close(3 [pid 6083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6081] <... write resumed>) = 16777216 [pid 6081] munmap(0x7fb71c400000, 138412032 [pid 6079] <... close resumed>) = 0 [pid 6081] <... munmap resumed>) = 0 [pid 6079] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6079] <... futex resumed>) = 1 [pid 6078] <... futex resumed>) = 0 [pid 6079] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6078] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6079] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6078] <... futex resumed>) = 0 [pid 6079] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6078] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6081] close(3 [pid 6079] <... futex resumed>) = 0 [pid 6078] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6079] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6078] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6079] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6079] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6079] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 6078] <... futex resumed>) = 1 [pid 6079] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6078] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6078] exit_group(0 [pid 6079] <... futex resumed>) = ? [pid 6078] <... exit_group resumed>) = ? [pid 6079] +++ exited with 0 +++ [pid 6078] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6078, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=30 /* 0.30 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6084 attached , child_tidptr=0x55556c203690) = 6084 [pid 6084] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6084] setpgid(0, 0) = 0 [pid 6084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6084] write(3, "1000", 4) = 4 [pid 6084] close(3) = 0 [pid 6084] write(1, "executing program\n", 18executing program ) = 18 [pid 6084] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6084] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6084] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6085 attached => {parent_tid=[6085]}, 88) = 6085 [pid 6084] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6084] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6085] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6084] <... futex resumed>) = 0 [pid 6084] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6085] <... rseq resumed>) = 0 [pid 6085] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6085] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6085] memfd_create("syzkaller", 0) = 3 [pid 6085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6083] <... write resumed>) = 16777216 [pid 6083] munmap(0x7fb71c400000, 138412032) = 0 [pid 6083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6083] close(3 [pid 6081] <... close resumed>) = 0 [pid 6081] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6080] <... futex resumed>) = 0 [pid 6080] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6080] <... futex resumed>) = 0 [pid 6080] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6081] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6081] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6081] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6080] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] <... futex resumed>) = 0 [pid 6080] <... futex resumed>) = 1 [pid 6081] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6080] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6081] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6081] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6080] <... futex resumed>) = 0 [pid 6081] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6080] exit_group(0 [pid 6081] <... futex resumed>) = ? [pid 6080] <... exit_group resumed>) = ? [pid 6081] +++ exited with 0 +++ [pid 6080] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6080, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=39 /* 0.39 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6086 ./strace-static-x86_64: Process 6086 attached [pid 6085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6086] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 6086] setpgid(0, 0) = 0 [pid 6086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6086] write(3, "1000", 4) = 4 [pid 6086] close(3) = 0 [pid 6086] write(1, "executing program\n", 18) = 18 [pid 6086] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6086] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6086] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6086] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6086] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6087 attached => {parent_tid=[6087]}, 88) = 6087 [pid 6086] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6086] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6086] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6087] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6087] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6087] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6087] memfd_create("syzkaller", 0) = 3 [pid 6087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6083] <... close resumed>) = 0 [pid 6083] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6082] <... futex resumed>) = 0 [pid 6083] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] <... futex resumed>) = 0 [pid 6083] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6082] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6083] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6083] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6082] <... futex resumed>) = 0 [pid 6083] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] <... futex resumed>) = 0 [pid 6083] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6082] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6083] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6083] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6082] <... futex resumed>) = 0 [pid 6083] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] exit_group(0) = ? [pid 6083] <... futex resumed>) = ? [pid 6083] +++ exited with 0 +++ [pid 6082] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6082, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6088 attached , child_tidptr=0x55556c203690) = 6088 [pid 6088] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6088] setpgid(0, 0) = 0 [pid 6088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6088] write(3, "1000", 4) = 4 [pid 6088] close(3) = 0 [pid 6088] write(1, "executing program\n", 18) = 18 [pid 6088] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6088] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6088] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6088] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6088] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6088] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6089 attached => {parent_tid=[6089]}, 88) = 6089 [pid 6089] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6088] rt_sigprocmask(SIG_SETMASK, [], [pid 6089] <... rseq resumed>) = 0 [pid 6088] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6089] set_robust_list(0x7fb72497a9a0, 24 [pid 6088] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6089] <... set_robust_list resumed>) = 0 [pid 6088] <... futex resumed>) = 0 [pid 6089] rt_sigprocmask(SIG_SETMASK, [], [pid 6088] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6089] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6089] memfd_create("syzkaller", 0) = 3 [pid 6089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6085] <... write resumed>) = 16777216 [pid 6085] munmap(0x7fb71c400000, 138412032) = 0 [pid 6089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6085] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6085] close(3 [pid 6087] <... write resumed>) = 16777216 [pid 6087] munmap(0x7fb71c400000, 138412032) = 0 [pid 6087] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6087] close(3 [pid 6085] <... close resumed>) = 0 [pid 6085] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6084] <... futex resumed>) = 0 [pid 6085] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6084] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6085] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6084] <... futex resumed>) = 0 [pid 6085] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6085] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6084] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6084] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6085] <... futex resumed>) = 0 [pid 6084] <... futex resumed>) = 1 [pid 6085] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6084] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6085] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6085] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6084] <... futex resumed>) = 0 [pid 6085] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6084] exit_group(0 [pid 6085] <... futex resumed>) = ? [pid 6084] <... exit_group resumed>) = ? [pid 6085] +++ exited with 0 +++ [pid 6084] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6084, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6090 attached , child_tidptr=0x55556c203690) = 6090 [pid 6090] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6090] setpgid(0, 0) = 0 [pid 6090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6090] write(3, "1000", 4) = 4 [pid 6090] close(3executing program ) = 0 [pid 6090] write(1, "executing program\n", 18) = 18 [pid 6090] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6090] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6090] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6090] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6090] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6090] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6091 attached => {parent_tid=[6091]}, 88) = 6091 [pid 6091] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6090] rt_sigprocmask(SIG_SETMASK, [], [pid 6091] <... rseq resumed>) = 0 [pid 6090] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6091] set_robust_list(0x7fb72497a9a0, 24 [pid 6090] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6091] <... set_robust_list resumed>) = 0 [pid 6090] <... futex resumed>) = 0 [pid 6091] rt_sigprocmask(SIG_SETMASK, [], [pid 6090] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6091] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6091] memfd_create("syzkaller", 0) = 3 [pid 6091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6089] <... write resumed>) = 16777216 [pid 6087] <... close resumed>) = 0 [pid 6089] munmap(0x7fb71c400000, 138412032 [pid 6087] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6087] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6086] <... futex resumed>) = 0 [pid 6086] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6086] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6087] <... futex resumed>) = 0 [pid 6087] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6087] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6086] <... futex resumed>) = 0 [pid 6086] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6086] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6087] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6087] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6086] <... futex resumed>) = 0 [pid 6087] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6086] exit_group(0 [pid 6087] <... futex resumed>) = ? [pid 6086] <... exit_group resumed>) = ? [pid 6091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6087] +++ exited with 0 +++ [pid 6086] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6086, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6089] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 6092 attached [pid 6092] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6089] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6092 [pid 6092] setpgid(0, 0 [pid 6089] close(3 [pid 6092] <... setpgid resumed>) = 0 [pid 6092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6092] write(3, "1000", 4) = 4 [pid 6092] close(3executing program ) = 0 [pid 6092] write(1, "executing program\n", 18) = 18 [pid 6092] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6092] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6092] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6092] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6092] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6092] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6093 attached [pid 6093] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6092] <... clone3 resumed> => {parent_tid=[6093]}, 88) = 6093 [pid 6093] <... rseq resumed>) = 0 [pid 6092] rt_sigprocmask(SIG_SETMASK, [], [pid 6093] set_robust_list(0x7fb72497a9a0, 24 [pid 6092] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6093] <... set_robust_list resumed>) = 0 [pid 6092] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6093] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6092] <... futex resumed>) = 0 [pid 6093] memfd_create("syzkaller", 0 [pid 6092] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6093] <... memfd_create resumed>) = 3 [pid 6093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6089] <... close resumed>) = 0 [pid 6093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6089] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6088] <... futex resumed>) = 0 [pid 6088] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6088] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6089] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6089] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6088] <... futex resumed>) = 0 [pid 6089] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6088] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6089] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6088] <... futex resumed>) = 0 [pid 6089] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6088] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6089] <... futex resumed>) = 0 [pid 6088] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6089] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6088] exit_group(0 [pid 6089] <... futex resumed>) = ? [pid 6088] <... exit_group resumed>) = ? [pid 6089] +++ exited with 0 +++ [pid 6088] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6088, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=39 /* 0.39 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6094 attached , child_tidptr=0x55556c203690) = 6094 [pid 6094] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6094] setpgid(0, 0) = 0 [pid 6094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6094] write(3, "1000", 4) = 4 [pid 6094] close(3) = 0 [pid 6094] write(1, "executing program\n", 18) = 18 [pid 6094] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6094] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6094] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6091] <... write resumed>) = 16777216 [pid 6094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6091] munmap(0x7fb71c400000, 138412032 [pid 6094] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6094] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6091] <... munmap resumed>) = 0 [pid 6094] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6091] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 6095 attached ) = -1 EBUSY (Device or resource busy) [pid 6094] <... clone3 resumed> => {parent_tid=[6095]}, 88) = 6095 [pid 6095] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6091] close(3 [pid 6095] <... rseq resumed>) = 0 [pid 6094] rt_sigprocmask(SIG_SETMASK, [], [pid 6095] set_robust_list(0x7fb72497a9a0, 24 [pid 6094] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6095] <... set_robust_list resumed>) = 0 [pid 6094] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6095] rt_sigprocmask(SIG_SETMASK, [], [pid 6094] <... futex resumed>) = 0 [pid 6095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6094] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6095] memfd_create("syzkaller", 0) = 3 [pid 6095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6091] <... close resumed>) = 0 [pid 6091] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6090] <... futex resumed>) = 0 [pid 6091] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6090] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6091] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6091] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6090] <... futex resumed>) = 0 [pid 6091] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6090] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6091] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6090] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6091] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6090] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6091] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6090] <... futex resumed>) = 0 [pid 6091] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6091] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6090] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6091] <... futex resumed>) = 0 [pid 6091] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6090] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6093] <... write resumed>) = 16777216 [pid 6090] exit_group(0 [pid 6093] munmap(0x7fb71c400000, 138412032 [pid 6091] <... futex resumed>) = ? [pid 6090] <... exit_group resumed>) = ? [pid 6091] +++ exited with 0 +++ [pid 6090] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6090, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6093] <... munmap resumed>) = 0 [pid 6093] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6093] close(3 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6096 attached [pid 6096] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6096 [pid 6096] <... set_robust_list resumed>) = 0 [pid 6096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6096] setpgid(0, 0) = 0 [pid 6096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6096] write(3, "1000", 4) = 4 [pid 6096] close(3) = 0 executing program [pid 6096] write(1, "executing program\n", 18) = 18 [pid 6096] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6096] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6096] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6096] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6096] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6096] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6097 attached [pid 6097] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6097] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6097] rt_sigprocmask(SIG_SETMASK, [], [pid 6096] <... clone3 resumed> => {parent_tid=[6097]}, 88) = 6097 [pid 6097] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6097] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6096] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6096] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6096] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6097] <... futex resumed>) = 0 [pid 6097] memfd_create("syzkaller", 0) = 3 [pid 6097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6093] <... close resumed>) = 0 [pid 6093] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6092] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6092] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6093] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6093] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6093] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6092] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6092] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6093] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6093] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6092] exit_group(0) = ? [pid 6095] <... write resumed>) = 16777216 [pid 6093] +++ exited with 0 +++ [pid 6095] munmap(0x7fb71c400000, 138412032 [pid 6092] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6092, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6098 attached [pid 6098] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6098 [pid 6098] <... set_robust_list resumed>) = 0 [pid 6098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6098] setpgid(0, 0) = 0 [pid 6098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6098] write(3, "1000", 4 [pid 6095] <... munmap resumed>) = 0 [pid 6098] <... write resumed>) = 4 [pid 6095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6095] close(3 [pid 6098] close(3 [pid 6097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6098] <... close resumed>) = 0 [pid 6098] write(1, "executing program\n", 18executing program ) = 18 [pid 6098] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6098] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6098] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6098] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6099 attached => {parent_tid=[6099]}, 88) = 6099 [pid 6098] rt_sigprocmask(SIG_SETMASK, [], [pid 6099] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6099] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6099] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6098] <... futex resumed>) = 0 [pid 6099] memfd_create("syzkaller", 0 [pid 6098] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6099] <... memfd_create resumed>) = 3 [pid 6099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6095] <... close resumed>) = 0 [pid 6095] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6095] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6094] <... futex resumed>) = 0 [pid 6094] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6095] <... futex resumed>) = 0 [pid 6094] <... futex resumed>) = 1 [pid 6095] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6094] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6095] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6095] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6094] <... futex resumed>) = 0 [pid 6095] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6094] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6095] <... futex resumed>) = 0 [pid 6094] <... futex resumed>) = 1 [pid 6095] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6094] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6095] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6095] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6095] <... futex resumed>) = 0 [pid 6094] exit_group(0) = ? [pid 6095] +++ exited with 0 +++ [pid 6094] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6094, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6100 ./strace-static-x86_64: Process 6100 attached [pid 6100] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6100] setpgid(0, 0) = 0 [pid 6100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6100] write(3, "1000", 4) = 4 [pid 6100] close(3executing program ) = 0 [pid 6100] write(1, "executing program\n", 18) = 18 [pid 6100] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6100] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6100] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6101 attached => {parent_tid=[6101]}, 88) = 6101 [pid 6101] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6097] <... write resumed>) = 16777216 [pid 6100] rt_sigprocmask(SIG_SETMASK, [], [pid 6101] <... rseq resumed>) = 0 [pid 6101] set_robust_list(0x7fb72497a9a0, 24 [pid 6100] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6097] munmap(0x7fb71c400000, 138412032 [pid 6101] <... set_robust_list resumed>) = 0 [pid 6100] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6101] rt_sigprocmask(SIG_SETMASK, [], [pid 6100] <... futex resumed>) = 0 [pid 6101] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6100] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6101] memfd_create("syzkaller", 0) = 3 [pid 6101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6097] <... munmap resumed>) = 0 [pid 6097] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6097] close(3 [pid 6101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6099] <... write resumed>) = 16777216 [pid 6099] munmap(0x7fb71c400000, 138412032 [pid 6097] <... close resumed>) = 0 [pid 6099] <... munmap resumed>) = 0 [pid 6097] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6096] <... futex resumed>) = 0 [pid 6099] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6097] <... futex resumed>) = 1 [pid 6096] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6097] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6096] <... futex resumed>) = 0 [pid 6099] close(3 [pid 6096] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6097] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6097] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6096] <... futex resumed>) = 0 [pid 6097] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6096] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6097] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6096] <... futex resumed>) = 0 [pid 6097] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6097] <... futex resumed>) = 0 [pid 6096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6097] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6096] exit_group(0 [pid 6097] <... futex resumed>) = ? [pid 6096] <... exit_group resumed>) = ? [pid 6097] +++ exited with 0 +++ [pid 6096] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6096, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6102 ./strace-static-x86_64: Process 6102 attached [pid 6102] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6102] setpgid(0, 0) = 0 [pid 6102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6102] write(3, "1000", 4) = 4 [pid 6102] close(3) = 0 [pid 6102] write(1, "executing program\n", 18executing program ) = 18 [pid 6102] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6102] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6102] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6102] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6102] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6103 attached => {parent_tid=[6103]}, 88) = 6103 [pid 6102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6102] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6103] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6102] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6103] <... rseq resumed>) = 0 [pid 6103] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6103] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6103] memfd_create("syzkaller", 0) = 3 [pid 6103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6101] <... write resumed>) = 16777216 [pid 6101] munmap(0x7fb71c400000, 138412032) = 0 [pid 6101] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6101] close(3 [pid 6103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6099] <... close resumed>) = 0 [pid 6099] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6098] <... futex resumed>) = 0 [pid 6098] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6098] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6099] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6099] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6098] <... futex resumed>) = 0 [pid 6099] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6098] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6098] <... futex resumed>) = 0 [pid 6099] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6099] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6098] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6099] <... futex resumed>) = 0 [pid 6098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6099] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] exit_group(0 [pid 6099] <... futex resumed>) = ? [pid 6098] <... exit_group resumed>) = ? [pid 6099] +++ exited with 0 +++ [pid 6098] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6098, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6104 attached , child_tidptr=0x55556c203690) = 6104 [pid 6104] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6104] setpgid(0, 0) = 0 [pid 6104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6104] write(3, "1000", 4) = 4 [pid 6104] close(3) = 0 [pid 6104] write(1, "executing program\n", 18) = 18 [pid 6104] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6104] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6104] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6105]}, 88) = 6105 [pid 6104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 6105 attached [pid 6105] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6105] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6105] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6105] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6104] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6105] <... futex resumed>) = 0 [pid 6104] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6105] memfd_create("syzkaller", 0) = 3 [pid 6105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6101] <... close resumed>) = 0 [pid 6101] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6101] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6100] <... futex resumed>) = 0 [pid 6100] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6101] <... futex resumed>) = 0 [pid 6101] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6100] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6101] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6101] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6100] <... futex resumed>) = 0 [pid 6100] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6101] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6100] <... futex resumed>) = 0 [pid 6101] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6100] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6101] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6100] <... futex resumed>) = 0 [pid 6101] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6100] exit_group(0) = ? [pid 6101] <... futex resumed>) = ? [pid 6101] +++ exited with 0 +++ [pid 6100] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6100, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=30 /* 0.30 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6106 ./strace-static-x86_64: Process 6106 attached [pid 6106] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6106] setpgid(0, 0) = 0 [pid 6106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6106] write(3, "1000", 4) = 4 [pid 6106] close(3) = 0 executing program [pid 6106] write(1, "executing program\n", 18) = 18 [pid 6106] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6106] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6106] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6106] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6106] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6106] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6107]}, 88) = 6107 ./strace-static-x86_64: Process 6107 attached [pid 6107] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6107] set_robust_list(0x7fb72497a9a0, 24 [pid 6106] rt_sigprocmask(SIG_SETMASK, [], [pid 6107] <... set_robust_list resumed>) = 0 [pid 6107] rt_sigprocmask(SIG_SETMASK, [], [pid 6106] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6107] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6107] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6106] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6106] <... futex resumed>) = 0 [pid 6106] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6107] memfd_create("syzkaller", 0) = 3 [pid 6107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6105] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6103] <... write resumed>) = 16777216 [pid 6103] munmap(0x7fb71c400000, 138412032) = 0 [pid 6103] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6103] close(3 [pid 6107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6103] <... close resumed>) = 0 [pid 6103] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6102] <... futex resumed>) = 0 [pid 6103] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6102] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6102] <... futex resumed>) = 0 [pid 6103] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6102] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6103] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6103] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6102] <... futex resumed>) = 0 [pid 6103] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6102] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6102] <... futex resumed>) = 0 [pid 6103] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6102] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6103] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6103] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6102] <... futex resumed>) = 0 [pid 6103] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6102] exit_group(0 [pid 6103] <... futex resumed>) = ? [pid 6102] <... exit_group resumed>) = ? [pid 6103] +++ exited with 0 +++ [pid 6102] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6102, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6108 attached , child_tidptr=0x55556c203690) = 6108 [pid 6108] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6108] setpgid(0, 0) = 0 [pid 6108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6108] write(3, "1000", 4) = 4 [pid 6108] close(3) = 0 [pid 6108] write(1, "executing program\n", 18executing program ) = 18 [pid 6108] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6108] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6108] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6108] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6109 attached => {parent_tid=[6109]}, 88) = 6109 [pid 6109] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6108] rt_sigprocmask(SIG_SETMASK, [], [pid 6109] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6109] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6108] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6109] memfd_create("syzkaller", 0 [pid 6108] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6109] <... memfd_create resumed>) = 3 [pid 6108] <... futex resumed>) = 0 [pid 6109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6108] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6109] <... mmap resumed>) = 0x7fb71c400000 [pid 6105] <... write resumed>) = 16777216 [pid 6105] munmap(0x7fb71c400000, 138412032) = 0 [pid 6105] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6105] close(3 [pid 6107] <... write resumed>) = 16777216 [pid 6107] munmap(0x7fb71c400000, 138412032) = 0 [pid 6109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6107] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6107] close(3 [pid 6105] <... close resumed>) = 0 [pid 6105] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6104] <... futex resumed>) = 0 [pid 6105] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6104] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6105] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6104] <... futex resumed>) = 0 [pid 6105] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6105] <... futex resumed>) = 0 [pid 6104] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6105] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6104] <... futex resumed>) = 0 [pid 6105] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6104] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6105] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6104] <... futex resumed>) = 0 [pid 6105] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6104] exit_group(0) = ? [pid 6105] <... futex resumed>) = ? [pid 6105] +++ exited with 0 +++ [pid 6104] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6104, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6110 attached , child_tidptr=0x55556c203690) = 6110 [pid 6110] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6110] setpgid(0, 0) = 0 [pid 6110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6110] write(3, "1000", 4) = 4 [pid 6110] close(3) = 0 executing program [pid 6110] write(1, "executing program\n", 18) = 18 [pid 6110] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6110] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6110] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6110] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6110] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6111 attached => {parent_tid=[6111]}, 88) = 6111 [pid 6110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6110] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6110] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6111] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6111] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6111] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6111] memfd_create("syzkaller", 0) = 3 [pid 6111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6107] <... close resumed>) = 0 [pid 6109] <... write resumed>) = 16777216 [pid 6109] munmap(0x7fb71c400000, 138412032 [pid 6107] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6106] <... futex resumed>) = 0 [pid 6106] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6106] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6107] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6107] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6106] <... futex resumed>) = 0 [pid 6107] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6106] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6107] <... futex resumed>) = 0 [pid 6106] <... futex resumed>) = 1 [pid 6107] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6106] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6107] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6107] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6107] <... futex resumed>) = 0 [pid 6107] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6106] exit_group(0 [pid 6107] <... futex resumed>) = ? [pid 6106] <... exit_group resumed>) = ? [pid 6107] +++ exited with 0 +++ [pid 6106] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6106, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6112 attached , child_tidptr=0x55556c203690) = 6112 [pid 6109] <... munmap resumed>) = 0 [pid 6112] set_robust_list(0x55556c2036a0, 24 [pid 6111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6109] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6112] <... set_robust_list resumed>) = 0 [pid 6112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6112] setpgid(0, 0 [pid 6109] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6109] close(3 [pid 6112] <... setpgid resumed>) = 0 [pid 6112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6112] write(3, "1000", 4) = 4 [pid 6112] close(3) = 0 executing program [pid 6112] write(1, "executing program\n", 18) = 18 [pid 6112] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6112] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6112] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6112] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6113]}, 88) = 6113 ./strace-static-x86_64: Process 6113 attached [pid 6113] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6112] rt_sigprocmask(SIG_SETMASK, [], [pid 6113] <... rseq resumed>) = 0 [pid 6113] set_robust_list(0x7fb72497a9a0, 24 [pid 6112] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6113] <... set_robust_list resumed>) = 0 [pid 6113] rt_sigprocmask(SIG_SETMASK, [], [pid 6112] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6113] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6112] <... futex resumed>) = 0 [pid 6112] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6113] memfd_create("syzkaller", 0) = 3 [pid 6113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6109] <... close resumed>) = 0 [pid 6109] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6108] <... futex resumed>) = 0 [pid 6109] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6108] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6109] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6108] <... futex resumed>) = 0 [pid 6109] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6108] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6111] <... write resumed>) = 16777216 [pid 6109] <... futex resumed>) = 0 [pid 6108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6109] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6108] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6108] <... futex resumed>) = 0 [pid 6111] munmap(0x7fb71c400000, 138412032 [pid 6108] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6109] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6109] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6108] <... futex resumed>) = 0 [pid 6109] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6108] exit_group(0 [pid 6109] <... futex resumed>) = ? [pid 6108] <... exit_group resumed>) = ? [pid 6109] +++ exited with 0 +++ [pid 6108] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6108, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=30 /* 0.30 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6111] <... munmap resumed>) = 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6111] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6111] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6114 ./strace-static-x86_64: Process 6114 attached [pid 6111] close(3 [pid 6114] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6114] setpgid(0, 0) = 0 [pid 6114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6114] write(3, "1000", 4) = 4 [pid 6114] close(3) = 0 executing program [pid 6114] write(1, "executing program\n", 18) = 18 [pid 6114] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6114] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6114] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6114] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6114] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6115 attached => {parent_tid=[6115]}, 88) = 6115 [pid 6114] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6114] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6114] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6115] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6115] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6115] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6115] memfd_create("syzkaller", 0) = 3 [pid 6115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6111] <... close resumed>) = 0 [pid 6111] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6111] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6110] <... futex resumed>) = 0 [pid 6110] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] <... futex resumed>) = 0 [pid 6110] <... futex resumed>) = 1 [pid 6111] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6110] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6111] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6111] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6110] <... futex resumed>) = 0 [pid 6111] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6110] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6111] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6111] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6110] <... futex resumed>) = 0 [pid 6110] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6110] exit_group(0) = ? [pid 6111] <... futex resumed>) = ? [pid 6111] +++ exited with 0 +++ [pid 6110] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6110, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6113] <... write resumed>) = 16777216 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6113] munmap(0x7fb71c400000, 138412032 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6116 attached , child_tidptr=0x55556c203690) = 6116 [pid 6116] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6116] setpgid(0, 0) = 0 [pid 6116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6116] write(3, "1000", 4) = 4 [pid 6116] close(3) = 0 executing program [pid 6116] write(1, "executing program\n", 18) = 18 [pid 6116] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6116] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6116] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6116] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6116] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6116] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6117 attached => {parent_tid=[6117]}, 88) = 6117 [pid 6117] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6116] rt_sigprocmask(SIG_SETMASK, [], [pid 6117] <... rseq resumed>) = 0 [pid 6117] set_robust_list(0x7fb72497a9a0, 24 [pid 6116] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6117] <... set_robust_list resumed>) = 0 [pid 6116] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6117] rt_sigprocmask(SIG_SETMASK, [], [pid 6116] <... futex resumed>) = 0 [pid 6117] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6116] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6117] memfd_create("syzkaller", 0) = 3 [pid 6117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6113] <... munmap resumed>) = 0 [pid 6113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6113] close(3 [pid 6117] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6113] <... close resumed>) = 0 [pid 6113] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6112] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6112] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6113] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6113] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6112] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6112] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6113] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6113] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6112] exit_group(0) = ? [pid 6115] <... write resumed>) = 16777216 [pid 6113] +++ exited with 0 +++ [pid 6112] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6112, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6118 attached [pid 6118] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6118 [pid 6118] <... set_robust_list resumed>) = 0 [pid 6118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6115] munmap(0x7fb71c400000, 138412032 [pid 6118] <... prctl resumed>) = 0 [pid 6118] setpgid(0, 0executing program ) = 0 [pid 6118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6118] write(3, "1000", 4) = 4 [pid 6118] close(3) = 0 [pid 6118] write(1, "executing program\n", 18) = 18 [pid 6118] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6118] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6118] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6118] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6118] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6118] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6119]}, 88) = 6119 ./strace-static-x86_64: Process 6119 attached [pid 6118] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6118] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6118] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6119] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6119] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6119] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6119] memfd_create("syzkaller", 0 [pid 6115] <... munmap resumed>) = 0 [pid 6119] <... memfd_create resumed>) = 3 [pid 6119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6115] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6115] close(3 [pid 6119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6115] <... close resumed>) = 0 [pid 6115] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6114] <... futex resumed>) = 0 [pid 6114] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6115] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6114] <... futex resumed>) = 0 [pid 6115] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6114] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6115] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6114] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6114] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 6114] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=45000000} [pid 6115] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6115] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6114] <... futex resumed>) = 0 [pid 6115] <... futex resumed>) = 1 [pid 6115] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] exit_group(0 [pid 6115] <... futex resumed>) = ? [pid 6114] <... exit_group resumed>) = ? [pid 6115] +++ exited with 0 +++ [pid 6114] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6114, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6117] <... write resumed>) = 16777216 [pid 6117] munmap(0x7fb71c400000, 138412032 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6120 ./strace-static-x86_64: Process 6120 attached [pid 6120] set_robust_list(0x55556c2036a0, 24 [pid 6117] <... munmap resumed>) = 0 [pid 6120] <... set_robust_list resumed>) = 0 [pid 6120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6117] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6120] <... prctl resumed>) = 0 [pid 6120] setpgid(0, 0 [pid 6117] close(3 [pid 6120] <... setpgid resumed>) = 0 [pid 6120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6120] write(3, "1000", 4) = 4 [pid 6120] close(3) = 0 executing program [pid 6120] write(1, "executing program\n", 18) = 18 [pid 6120] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6120] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6120] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6120] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6121]}, 88) = 6121 [pid 6120] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6120] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6121 attached ) = 0 [pid 6120] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6121] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6121] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6121] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6121] memfd_create("syzkaller", 0) = 3 [pid 6121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6117] <... close resumed>) = 0 [pid 6117] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] <... futex resumed>) = 0 [pid 6116] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6116] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6117] <... futex resumed>) = 1 [pid 6117] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6117] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] <... futex resumed>) = 0 [pid 6116] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6116] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6117] <... futex resumed>) = 1 [pid 6117] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6117] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6116] <... futex resumed>) = 0 [pid 6117] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] exit_group(0 [pid 6117] <... futex resumed>) = ? [pid 6116] <... exit_group resumed>) = ? [pid 6117] +++ exited with 0 +++ [pid 6116] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6116, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6122 attached [pid 6121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6122] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6122 [pid 6122] <... set_robust_list resumed>) = 0 [pid 6122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6122] setpgid(0, 0) = 0 [pid 6119] <... write resumed>) = 16777216 [pid 6119] munmap(0x7fb71c400000, 138412032 [pid 6122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6122] write(3, "1000", 4) = 4 [pid 6122] close(3executing program ) = 0 [pid 6122] write(1, "executing program\n", 18) = 18 [pid 6122] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6122] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6119] <... munmap resumed>) = 0 [pid 6122] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6119] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6122] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6119] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6122] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6119] close(3 [pid 6122] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6123 attached => {parent_tid=[6123]}, 88) = 6123 [pid 6123] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6122] rt_sigprocmask(SIG_SETMASK, [], [pid 6123] <... rseq resumed>) = 0 [pid 6122] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6123] set_robust_list(0x7fb72497a9a0, 24 [pid 6122] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... set_robust_list resumed>) = 0 [pid 6122] <... futex resumed>) = 0 [pid 6123] rt_sigprocmask(SIG_SETMASK, [], [pid 6122] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6123] memfd_create("syzkaller", 0) = 3 [pid 6123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6121] <... write resumed>) = 16777216 [pid 6121] munmap(0x7fb71c400000, 138412032 [pid 6119] <... close resumed>) = 0 [pid 6119] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6118] <... futex resumed>) = 0 [pid 6119] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6118] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6119] <... futex resumed>) = 0 [pid 6118] <... futex resumed>) = 1 [pid 6119] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6118] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6119] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6119] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6119] <... futex resumed>) = 0 [pid 6119] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6118] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6119] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6118] <... futex resumed>) = 0 [pid 6118] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6119] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6119] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6118] <... futex resumed>) = 0 [pid 6119] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6118] exit_group(0 [pid 6119] <... futex resumed>) = ? [pid 6118] <... exit_group resumed>) = ? [pid 6119] +++ exited with 0 +++ [pid 6118] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6118, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6121] <... munmap resumed>) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6121] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 6124 attached [pid 6124] set_robust_list(0x55556c2036a0, 24 [pid 6121] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6121] close(3 [pid 6124] <... set_robust_list resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6124 [pid 6124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6124] setpgid(0, 0 [pid 6123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6124] <... setpgid resumed>) = 0 [pid 6124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6124] write(3, "1000", 4) = 4 [pid 6124] close(3) = 0 executing program [pid 6124] write(1, "executing program\n", 18) = 18 [pid 6124] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6124] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6124] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6124] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6124] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6124] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6125 attached => {parent_tid=[6125]}, 88) = 6125 [pid 6124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6124] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6125] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6124] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6125] <... rseq resumed>) = 0 [pid 6125] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6125] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6125] memfd_create("syzkaller", 0) = 3 [pid 6125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6123] <... write resumed>) = 16777216 [pid 6123] munmap(0x7fb71c400000, 138412032 [pid 6125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6123] <... munmap resumed>) = 0 [pid 6121] <... close resumed>) = 0 [pid 6121] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6120] <... futex resumed>) = 0 [pid 6120] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6120] <... futex resumed>) = 0 [pid 6123] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6120] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6121] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6123] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6121] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6120] <... futex resumed>) = 0 [pid 6123] close(3 [pid 6121] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6120] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6120] <... futex resumed>) = 0 [pid 6120] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6121] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6121] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6120] <... futex resumed>) = 0 [pid 6121] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6120] exit_group(0) = ? [pid 6121] <... futex resumed>) = ? [pid 6121] +++ exited with 0 +++ [pid 6120] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6120, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6126 attached , child_tidptr=0x55556c203690) = 6126 [pid 6126] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6126] setpgid(0, 0) = 0 [pid 6126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6126] write(3, "1000", 4) = 4 [pid 6126] close(3) = 0 executing program [pid 6126] write(1, "executing program\n", 18) = 18 [pid 6126] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6126] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6126] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6126] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6127 attached => {parent_tid=[6127]}, 88) = 6127 [pid 6126] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6126] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6127] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6126] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6127] <... rseq resumed>) = 0 [pid 6127] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6127] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6127] memfd_create("syzkaller", 0) = 3 [pid 6127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6125] <... write resumed>) = 16777216 [pid 6125] munmap(0x7fb71c400000, 138412032) = 0 [pid 6125] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6125] close(3 [pid 6123] <... close resumed>) = 0 [pid 6123] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6123] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6122] <... futex resumed>) = 0 [pid 6122] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... futex resumed>) = 0 [pid 6122] <... futex resumed>) = 1 [pid 6123] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6122] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6123] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6122] <... futex resumed>) = 0 [pid 6123] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6122] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6122] <... futex resumed>) = 0 [pid 6122] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6123] <... futex resumed>) = 0 [pid 6122] exit_group(0) = ? [pid 6123] +++ exited with 0 +++ [pid 6122] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6122, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6128 attached , child_tidptr=0x55556c203690) = 6128 [pid 6128] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6128] setpgid(0, 0) = 0 [pid 6128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6128] write(3, "1000", 4) = 4 [pid 6128] close(3) = 0 [pid 6128] write(1, "executing program\n", 18executing program ) = 18 [pid 6127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6128] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6128] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6128] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6128] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6128] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6128] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6129 attached => {parent_tid=[6129]}, 88) = 6129 [pid 6129] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6128] rt_sigprocmask(SIG_SETMASK, [], [pid 6129] <... rseq resumed>) = 0 [pid 6128] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6129] set_robust_list(0x7fb72497a9a0, 24 [pid 6128] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6128] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6129] <... set_robust_list resumed>) = 0 [pid 6129] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6129] memfd_create("syzkaller", 0) = 3 [pid 6129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6125] <... close resumed>) = 0 [pid 6125] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6124] <... futex resumed>) = 0 [pid 6125] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6124] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6125] <... futex resumed>) = 0 [pid 6125] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6124] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6125] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6125] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6124] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6125] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6124] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] <... futex resumed>) = 0 [pid 6124] <... futex resumed>) = 1 [pid 6125] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6124] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6125] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6125] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6124] <... futex resumed>) = 0 [pid 6125] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6124] exit_group(0 [pid 6125] <... futex resumed>) = ? [pid 6124] <... exit_group resumed>) = ? [pid 6125] +++ exited with 0 +++ [pid 6124] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6124, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6130 attached , child_tidptr=0x55556c203690) = 6130 [pid 6130] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6130] setpgid(0, 0) = 0 [pid 6130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6130] write(3, "1000", 4) = 4 [pid 6130] close(3) = 0 [pid 6130] write(1, "executing program\n", 18executing program ) = 18 [pid 6130] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6130] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6130] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6130] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6130] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6131 attached [pid 6131] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6130] <... clone3 resumed> => {parent_tid=[6131]}, 88) = 6131 [pid 6131] <... rseq resumed>) = 0 [pid 6130] rt_sigprocmask(SIG_SETMASK, [], [pid 6131] set_robust_list(0x7fb72497a9a0, 24 [pid 6130] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6131] <... set_robust_list resumed>) = 0 [pid 6130] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] rt_sigprocmask(SIG_SETMASK, [], [pid 6130] <... futex resumed>) = 0 [pid 6130] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6131] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6131] memfd_create("syzkaller", 0) = 3 [pid 6131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6127] <... write resumed>) = 16777216 [pid 6131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6127] munmap(0x7fb71c400000, 138412032) = 0 [pid 6127] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6127] close(3 [pid 6129] <... write resumed>) = 16777216 [pid 6129] munmap(0x7fb71c400000, 138412032) = 0 [pid 6127] <... close resumed>) = 0 [pid 6129] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6127] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] <... futex resumed>) = 0 [pid 6127] <... futex resumed>) = 1 [pid 6126] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6127] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6126] <... futex resumed>) = 0 [pid 6127] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6126] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6127] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6126] <... futex resumed>) = 0 [pid 6127] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6126] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6126] <... futex resumed>) = 0 [pid 6129] close(3 [pid 6127] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6126] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6127] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6127] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6126] <... futex resumed>) = 0 [pid 6126] exit_group(0) = ? [pid 6127] +++ exited with 0 +++ [pid 6126] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6126, si_uid=0, si_status=0, si_utime=0, si_stime=38 /* 0.38 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6132 ./strace-static-x86_64: Process 6132 attached [pid 6132] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6132] setpgid(0, 0) = 0 [pid 6132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6132] write(3, "1000", 4executing program ) = 4 [pid 6132] close(3) = 0 [pid 6132] write(1, "executing program\n", 18) = 18 [pid 6132] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6132] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6132] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6133 attached [pid 6133] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6132] <... clone3 resumed> => {parent_tid=[6133]}, 88) = 6133 [pid 6132] rt_sigprocmask(SIG_SETMASK, [], [pid 6133] <... rseq resumed>) = 0 [pid 6132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6133] set_robust_list(0x7fb72497a9a0, 24 [pid 6132] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6133] <... set_robust_list resumed>) = 0 [pid 6132] <... futex resumed>) = 0 [pid 6133] rt_sigprocmask(SIG_SETMASK, [], [pid 6132] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6133] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6133] memfd_create("syzkaller", 0) = 3 [pid 6133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6131] <... write resumed>) = 16777216 [pid 6131] munmap(0x7fb71c400000, 138412032) = 0 [pid 6131] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6131] close(3 [pid 6129] <... close resumed>) = 0 [pid 6129] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6129] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6128] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6129] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6128] <... futex resumed>) = 0 [pid 6129] <... futex resumed>) = 0 [pid 6129] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6128] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... futex resumed>) = 0 [pid 6128] <... futex resumed>) = 1 [pid 6129] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6128] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6129] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6129] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6129] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] exit_group(0 [pid 6129] <... futex resumed>) = ? [pid 6128] <... exit_group resumed>) = ? [pid 6129] +++ exited with 0 +++ [pid 6128] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6128, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6134 attached , child_tidptr=0x55556c203690) = 6134 [pid 6133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6134] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6134] setpgid(0, 0) = 0 [pid 6134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6134] write(3, "1000", 4) = 4 [pid 6134] close(3) = 0 executing program [pid 6134] write(1, "executing program\n", 18) = 18 [pid 6134] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6134] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6134] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6134] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6134] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6134] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6134] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6135 attached => {parent_tid=[6135]}, 88) = 6135 [pid 6134] rt_sigprocmask(SIG_SETMASK, [], [pid 6135] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6134] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6134] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6135] <... rseq resumed>) = 0 [pid 6134] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6135] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6135] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6135] memfd_create("syzkaller", 0) = 3 [pid 6135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6131] <... close resumed>) = 0 [pid 6131] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6130] <... futex resumed>) = 0 [pid 6131] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6130] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6130] <... futex resumed>) = 0 [pid 6131] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6130] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6131] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6130] <... futex resumed>) = 0 [pid 6131] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6130] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6130] <... futex resumed>) = 0 [pid 6130] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6131] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6130] <... futex resumed>) = 0 [pid 6131] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6130] exit_group(0 [pid 6131] <... futex resumed>) = ? [pid 6130] <... exit_group resumed>) = ? [pid 6131] +++ exited with 0 +++ [pid 6130] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6130, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6136 attached , child_tidptr=0x55556c203690) = 6136 [pid 6136] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6136] setpgid(0, 0) = 0 [pid 6136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6136] write(3, "1000", 4) = 4 [pid 6136] close(3executing program ) = 0 [pid 6136] write(1, "executing program\n", 18) = 18 [pid 6136] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6136] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6136] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6136] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6136] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6136] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6136] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6137]}, 88) = 6137 [pid 6136] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6136] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6136] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6137 attached [pid 6137] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6137] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6137] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6137] memfd_create("syzkaller", 0) = 3 [pid 6137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6133] <... write resumed>) = 16777216 [pid 6133] munmap(0x7fb71c400000, 138412032 [pid 6137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6133] <... munmap resumed>) = 0 [pid 6133] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6133] close(3 [pid 6135] <... write resumed>) = 16777216 [pid 6135] munmap(0x7fb71c400000, 138412032) = 0 [pid 6135] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6135] close(3 [pid 6133] <... close resumed>) = 0 [pid 6133] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6133] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6132] <... futex resumed>) = 0 [pid 6132] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6133] <... futex resumed>) = 0 [pid 6132] <... futex resumed>) = 1 [pid 6132] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6133] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6133] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6132] <... futex resumed>) = 0 [pid 6133] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6132] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6133] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6132] <... futex resumed>) = 0 [pid 6132] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6133] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6133] <... futex resumed>) = 0 [pid 6132] exit_group(0) = ? [pid 6133] +++ exited with 0 +++ [pid 6132] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6132, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6138 attached , child_tidptr=0x55556c203690) = 6138 [pid 6138] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6138] setpgid(0, 0) = 0 [pid 6138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6138] write(3, "1000", 4) = 4 [pid 6138] close(3) = 0 [pid 6138] write(1, "executing program\n", 18) = 18 [pid 6138] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6138] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6138] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6138] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6138] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6138] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6139 attached => {parent_tid=[6139]}, 88) = 6139 [pid 6138] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6138] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6138] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6139] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6139] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6139] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6139] memfd_create("syzkaller", 0) = 3 [pid 6137] <... write resumed>) = 16777216 [pid 6139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6137] munmap(0x7fb71c400000, 138412032 [pid 6139] <... mmap resumed>) = 0x7fb71c400000 [pid 6137] <... munmap resumed>) = 0 [pid 6137] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6137] close(3 [pid 6135] <... close resumed>) = 0 [pid 6135] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6134] <... futex resumed>) = 0 [pid 6135] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6134] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6135] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6134] <... futex resumed>) = 0 [pid 6135] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6134] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6135] <... futex resumed>) = 0 [pid 6134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6135] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6134] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6135] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6134] <... futex resumed>) = 0 [pid 6135] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6134] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6135] <... futex resumed>) = 0 [pid 6134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6135] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6134] exit_group(0 [pid 6135] <... futex resumed>) = ? [pid 6134] <... exit_group resumed>) = ? [pid 6135] +++ exited with 0 +++ [pid 6134] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6134, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=40 /* 0.40 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6140 ./strace-static-x86_64: Process 6140 attached [pid 6140] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6140] setpgid(0, 0) = 0 [pid 6140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6140] write(3, "1000", 4) = 4 [pid 6140] close(3) = 0 executing program [pid 6140] write(1, "executing program\n", 18) = 18 [pid 6140] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6140] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6140] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6140] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6140] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6140] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6141 attached [pid 6141] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6140] <... clone3 resumed> => {parent_tid=[6141]}, 88) = 6141 [pid 6141] <... rseq resumed>) = 0 [pid 6140] rt_sigprocmask(SIG_SETMASK, [], [pid 6141] set_robust_list(0x7fb72497a9a0, 24 [pid 6140] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6141] <... set_robust_list resumed>) = 0 [pid 6140] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6141] rt_sigprocmask(SIG_SETMASK, [], [pid 6140] <... futex resumed>) = 0 [pid 6141] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6140] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6141] memfd_create("syzkaller", 0) = 3 [pid 6141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6137] <... close resumed>) = 0 [pid 6137] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] <... futex resumed>) = 0 [pid 6136] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6136] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6137] <... futex resumed>) = 1 [pid 6137] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6137] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6136] <... futex resumed>) = 0 [pid 6136] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6137] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6136] <... futex resumed>) = 0 [pid 6137] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6136] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6137] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6136] <... futex resumed>) = 0 [pid 6137] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6136] exit_group(0 [pid 6137] <... futex resumed>) = ? [pid 6136] <... exit_group resumed>) = ? [pid 6137] +++ exited with 0 +++ [pid 6136] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6136, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6142 ./strace-static-x86_64: Process 6142 attached [pid 6142] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6142] setpgid(0, 0) = 0 [pid 6142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6142] write(3, "1000", 4) = 4 [pid 6142] close(3) = 0 [pid 6142] write(1, "executing program\n", 18executing program ) = 18 [pid 6142] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6142] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6142] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6142] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6142] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6142] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6143 attached => {parent_tid=[6143]}, 88) = 6143 [pid 6143] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6143] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6143] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6143] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6142] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] <... futex resumed>) = 0 [pid 6142] <... futex resumed>) = 1 [pid 6143] memfd_create("syzkaller", 0) = 3 [pid 6142] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6139] <... write resumed>) = 16777216 [pid 6139] munmap(0x7fb71c400000, 138412032 [pid 6143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6139] <... munmap resumed>) = 0 [pid 6139] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6141] <... write resumed>) = 16777216 [pid 6141] munmap(0x7fb71c400000, 138412032 [pid 6139] close(3 [pid 6141] <... munmap resumed>) = 0 [pid 6141] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6141] close(3 [pid 6139] <... close resumed>) = 0 [pid 6139] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6139] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6138] <... futex resumed>) = 0 [pid 6138] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6139] <... futex resumed>) = 0 [pid 6138] <... futex resumed>) = 1 [pid 6139] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6138] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6139] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6139] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6138] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6139] <... futex resumed>) = 0 [pid 6138] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6139] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6139] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6138] <... futex resumed>) = 0 [pid 6139] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6138] exit_group(0) = ? [pid 6139] <... futex resumed>) = ? [pid 6139] +++ exited with 0 +++ [pid 6138] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6138, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6144 attached [pid 6144] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6144] setpgid(0, 0) = 0 [pid 6144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6144 [pid 6144] <... openat resumed>) = 3 [pid 6144] write(3, "1000", 4) = 4 [pid 6144] close(3) = 0 [pid 6144] write(1, "executing program\n", 18executing program ) = 18 [pid 6144] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6144] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6144] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6144] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6144] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6145 attached => {parent_tid=[6145]}, 88) = 6145 [pid 6145] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6144] rt_sigprocmask(SIG_SETMASK, [], [pid 6145] <... rseq resumed>) = 0 [pid 6145] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6145] rt_sigprocmask(SIG_SETMASK, [], [pid 6144] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6145] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6144] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6144] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6145] memfd_create("syzkaller", 0) = 3 [pid 6145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6141] <... close resumed>) = 0 [pid 6141] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6140] <... futex resumed>) = 0 [pid 6141] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6140] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6141] <... futex resumed>) = 0 [pid 6140] <... futex resumed>) = 1 [pid 6141] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6140] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6141] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6141] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6140] <... futex resumed>) = 0 [pid 6141] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6140] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6141] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6140] <... futex resumed>) = 0 [pid 6141] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6140] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6141] <... futex resumed>) = 0 [pid 6140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6141] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6140] exit_group(0 [pid 6141] <... futex resumed>) = ? [pid 6140] <... exit_group resumed>) = ? [pid 6141] +++ exited with 0 +++ [pid 6140] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6140, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6146 attached , child_tidptr=0x55556c203690) = 6146 [pid 6146] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6146] setpgid(0, 0) = 0 [pid 6146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6146] write(3, "1000", 4) = 4 [pid 6143] <... write resumed>) = 16777216 [pid 6146] close(3) = 0 [pid 6146] write(1, "executing program\n", 18executing program ) = 18 [pid 6146] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6146] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6146] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6143] munmap(0x7fb71c400000, 138412032 [pid 6146] <... mmap resumed>) = 0x7fb72495a000 [pid 6146] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6146] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6146] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6147 attached => {parent_tid=[6147]}, 88) = 6147 [pid 6143] <... munmap resumed>) = 0 [pid 6147] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6147] set_robust_list(0x7fb72497a9a0, 24 [pid 6146] rt_sigprocmask(SIG_SETMASK, [], [pid 6143] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6147] <... set_robust_list resumed>) = 0 [pid 6146] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6143] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6147] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6143] close(3 [pid 6147] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6146] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6147] <... futex resumed>) = 0 [pid 6146] <... futex resumed>) = 1 [pid 6146] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6147] memfd_create("syzkaller", 0) = 3 [pid 6147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6143] <... close resumed>) = 0 [pid 6143] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6143] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] <... futex resumed>) = 0 [pid 6142] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] <... futex resumed>) = 0 [pid 6142] <... futex resumed>) = 1 [pid 6143] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6142] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6143] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6143] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] <... futex resumed>) = 0 [pid 6142] <... futex resumed>) = 1 [pid 6143] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6142] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6143] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6143] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6143] <... futex resumed>) = 0 [pid 6143] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] exit_group(0 [pid 6143] <... futex resumed>) = ? [pid 6142] <... exit_group resumed>) = ? [pid 6143] +++ exited with 0 +++ [pid 6147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6142] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6142, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6148 attached [pid 6148] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6148 [pid 6148] <... set_robust_list resumed>) = 0 [pid 6148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6148] setpgid(0, 0) = 0 [pid 6148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6148] write(3, "1000", 4) = 4 [pid 6148] close(3) = 0 [pid 6148] write(1, "executing program\n", 18executing program ) = 18 [pid 6148] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6148] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6148] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6148] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6148] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6148] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6149]}, 88) = 6149 [pid 6148] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6148] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6148] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6149 attached [pid 6149] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6145] <... write resumed>) = 16777216 [pid 6149] set_robust_list(0x7fb72497a9a0, 24 [pid 6145] munmap(0x7fb71c400000, 138412032 [pid 6149] <... set_robust_list resumed>) = 0 [pid 6149] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6149] memfd_create("syzkaller", 0) = 3 [pid 6149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6145] <... munmap resumed>) = 0 [pid 6145] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6145] close(3 [pid 6147] <... write resumed>) = 16777216 [pid 6147] munmap(0x7fb71c400000, 138412032 [pid 6149] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6147] <... munmap resumed>) = 0 [pid 6145] <... close resumed>) = 0 [pid 6145] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6144] <... futex resumed>) = 0 [pid 6145] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6144] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6145] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6144] <... futex resumed>) = 0 [pid 6144] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6145] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6144] <... futex resumed>) = 0 [pid 6145] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6144] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6145] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6144] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6145] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6144] <... futex resumed>) = 0 [pid 6145] <... futex resumed>) = 1 [pid 6144] exit_group(0) = ? [pid 6147] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6145] +++ exited with 0 +++ [pid 6144] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6144, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6147] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6147] close(3 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6150 attached [pid 6150] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6150] setpgid(0, 0) = 0 [pid 6150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6150] write(3, "1000", 4) = 4 [pid 6150] close(3) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6150 executing program [pid 6150] write(1, "executing program\n", 18) = 18 [pid 6150] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6150] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6150] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6150] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6150] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6150] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6150] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6151]}, 88) = 6151 [pid 6150] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6150] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6150] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6151 attached [pid 6151] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6151] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6151] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6151] memfd_create("syzkaller", 0) = 3 [pid 6151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6149] <... write resumed>) = 16777216 [pid 6149] munmap(0x7fb71c400000, 138412032 [pid 6147] <... close resumed>) = 0 [pid 6147] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6146] <... futex resumed>) = 0 [pid 6147] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6146] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6146] <... futex resumed>) = 0 [pid 6147] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6146] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6147] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6147] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6146] <... futex resumed>) = 0 [pid 6147] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6146] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6146] <... futex resumed>) = 0 [pid 6147] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6146] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6147] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6147] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6146] <... futex resumed>) = 0 [pid 6147] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6146] exit_group(0 [pid 6147] <... futex resumed>) = ? [pid 6146] <... exit_group resumed>) = ? [pid 6147] +++ exited with 0 +++ [pid 6146] +++ exited with 0 +++ [pid 6149] <... munmap resumed>) = 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6146, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6149] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5869] <... restart_syscall resumed>) = 0 [pid 6149] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6149] close(3 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6152 ./strace-static-x86_64: Process 6152 attached [pid 6152] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6152] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program ) = 0 [pid 6152] setpgid(0, 0) = 0 [pid 6152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6152] write(3, "1000", 4) = 4 [pid 6152] close(3) = 0 [pid 6152] write(1, "executing program\n", 18) = 18 [pid 6152] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6152] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6152] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6152] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6152] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6152] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6153 attached => {parent_tid=[6153]}, 88) = 6153 [pid 6152] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6152] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6152] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6153] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6153] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6153] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6153] memfd_create("syzkaller", 0) = 3 [pid 6153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6151] <... write resumed>) = 16777216 [pid 6149] <... close resumed>) = 0 [pid 6151] munmap(0x7fb71c400000, 138412032 [pid 6149] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6148] <... futex resumed>) = 0 [pid 6148] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6148] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6149] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6149] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... futex resumed>) = 0 [pid 6148] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6148] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6149] <... futex resumed>) = 1 [pid 6149] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6149] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... futex resumed>) = 0 [pid 6148] exit_group(0) = ? [pid 6149] <... futex resumed>) = ? [pid 6149] +++ exited with 0 +++ [pid 6148] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6148, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6154 ./strace-static-x86_64: Process 6154 attached [pid 6154] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6154] setpgid(0, 0) = 0 [pid 6154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6154] write(3, "1000", 4) = 4 [pid 6154] close(3) = 0 [pid 6154] write(1, "executing program\n", 18) = 18 [pid 6154] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6154] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6154] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6154] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6154] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6151] <... munmap resumed>) = 0 [pid 6154] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6154] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6151] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 6155 attached [pid 6154] <... clone3 resumed> => {parent_tid=[6155]}, 88) = 6155 [pid 6151] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6154] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6151] close(3 [pid 6155] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6154] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6155] <... rseq resumed>) = 0 [pid 6155] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6155] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6155] memfd_create("syzkaller", 0) = 3 [pid 6155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6154] <... futex resumed>) = 0 [pid 6155] <... mmap resumed>) = 0x7fb71c400000 [pid 6154] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6151] <... close resumed>) = 0 [pid 6151] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6150] <... futex resumed>) = 0 [pid 6151] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6150] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6151] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6150] <... futex resumed>) = 0 [pid 6151] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6150] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6151] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6150] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6151] <... futex resumed>) = 0 [pid 6150] <... futex resumed>) = 1 [pid 6151] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6150] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6151] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6151] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6150] <... futex resumed>) = 0 [pid 6151] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6150] exit_group(0) = ? [pid 6151] <... futex resumed>) = ? [pid 6155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6151] +++ exited with 0 +++ [pid 6150] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6150, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6156 attached , child_tidptr=0x55556c203690) = 6156 [pid 6156] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6156] setpgid(0, 0) = 0 [pid 6156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6156] write(3, "1000", 4) = 4 [pid 6156] close(3) = 0 [pid 6156] write(1, "executing program\n", 18executing program ) = 18 [pid 6156] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6156] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6156] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6156] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6156] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6156] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6157 attached [pid 6157] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6157] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6157] rt_sigprocmask(SIG_SETMASK, [], [pid 6153] <... write resumed>) = 16777216 [pid 6157] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6157] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6153] munmap(0x7fb71c400000, 138412032 [pid 6156] <... clone3 resumed> => {parent_tid=[6157]}, 88) = 6157 [pid 6156] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6156] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6156] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6157] <... futex resumed>) = 0 [pid 6157] memfd_create("syzkaller", 0) = 3 [pid 6153] <... munmap resumed>) = 0 [pid 6157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6153] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6157] <... mmap resumed>) = 0x7fb71c400000 [pid 6153] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6153] close(3) = 0 [pid 6153] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6153] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6152] <... futex resumed>) = 0 [pid 6152] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6153] <... futex resumed>) = 0 [pid 6152] <... futex resumed>) = 1 [pid 6153] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6153] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6152] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6153] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6152] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6153] <... futex resumed>) = 0 [pid 6152] <... futex resumed>) = 1 [pid 6153] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6152] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6153] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6153] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6152] <... futex resumed>) = 0 [pid 6153] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6152] exit_group(0 [pid 6153] <... futex resumed>) = ? [pid 6152] <... exit_group resumed>) = ? [pid 6153] +++ exited with 0 +++ [pid 6152] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6152, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6158 attached , child_tidptr=0x55556c203690) = 6158 [pid 6158] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6158] setpgid(0, 0) = 0 [pid 6158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6158] write(3, "1000", 4) = 4 [pid 6158] close(3) = 0 executing program [pid 6158] write(1, "executing program\n", 18) = 18 [pid 6158] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6158] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6158] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6158] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6158] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6158] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6158] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6159]}, 88) = 6159 [pid 6158] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6158] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 6159 attached [pid 6158] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6159] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6159] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6159] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6159] memfd_create("syzkaller", 0) = 3 [pid 6159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6155] <... write resumed>) = 16777216 [pid 6155] munmap(0x7fb71c400000, 138412032) = 0 [pid 6155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6155] close(3 [pid 6159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6157] <... write resumed>) = 16777216 [pid 6157] munmap(0x7fb71c400000, 138412032) = 0 [pid 6157] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6157] close(3 [pid 6155] <... close resumed>) = 0 [pid 6155] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6154] <... futex resumed>) = 0 [pid 6155] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6154] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6155] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6154] <... futex resumed>) = 0 [pid 6155] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6154] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6155] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6154] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6155] <... futex resumed>) = 0 [pid 6154] <... futex resumed>) = 1 [pid 6155] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6154] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6155] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6155] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6154] <... futex resumed>) = 0 [pid 6155] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6154] exit_group(0 [pid 6155] <... futex resumed>) = ? [pid 6154] <... exit_group resumed>) = ? [pid 6155] +++ exited with 0 +++ [pid 6154] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6154, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=30 /* 0.30 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6160 attached , child_tidptr=0x55556c203690) = 6160 [pid 6160] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6160] setpgid(0, 0) = 0 [pid 6160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6160] write(3, "1000", 4) = 4 [pid 6160] close(3) = 0 [pid 6160] write(1, "executing program\n", 18executing program ) = 18 [pid 6160] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6160] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6160] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6160] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6160] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6160] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6161 attached => {parent_tid=[6161]}, 88) = 6161 [pid 6161] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6160] rt_sigprocmask(SIG_SETMASK, [], [pid 6161] <... rseq resumed>) = 0 [pid 6160] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6161] set_robust_list(0x7fb72497a9a0, 24 [pid 6160] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6161] <... set_robust_list resumed>) = 0 [pid 6161] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6160] <... futex resumed>) = 0 [pid 6161] memfd_create("syzkaller", 0 [pid 6160] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6161] <... memfd_create resumed>) = 3 [pid 6161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6157] <... close resumed>) = 0 [pid 6157] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6156] <... futex resumed>) = 0 [pid 6157] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6156] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6157] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6156] <... futex resumed>) = 0 [pid 6157] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6156] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6157] <... futex resumed>) = 0 [pid 6156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6157] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6156] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6157] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6156] <... futex resumed>) = 0 [pid 6157] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6156] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6157] <... futex resumed>) = 0 [pid 6156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6157] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6156] exit_group(0 [pid 6157] <... futex resumed>) = ? [pid 6156] <... exit_group resumed>) = ? [pid 6157] +++ exited with 0 +++ [pid 6156] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6156, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6162 attached , child_tidptr=0x55556c203690) = 6162 [pid 6162] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6162] setpgid(0, 0) = 0 [pid 6162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6162] write(3, "1000", 4) = 4 [pid 6162] close(3) = 0 [pid 6162] write(1, "executing program\n", 18executing program [pid 6161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6162] <... write resumed>) = 18 [pid 6162] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6162] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6162] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6162] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6159] <... write resumed>) = 16777216 [pid 6162] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6159] munmap(0x7fb71c400000, 138412032 [pid 6162] <... mprotect resumed>) = 0 [pid 6162] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6162] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6163 attached [pid 6163] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6162] <... clone3 resumed> => {parent_tid=[6163]}, 88) = 6163 [pid 6163] <... rseq resumed>) = 0 [pid 6163] set_robust_list(0x7fb72497a9a0, 24 [pid 6162] rt_sigprocmask(SIG_SETMASK, [], [pid 6163] <... set_robust_list resumed>) = 0 [pid 6163] rt_sigprocmask(SIG_SETMASK, [], [pid 6162] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6163] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6162] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] memfd_create("syzkaller", 0 [pid 6162] <... futex resumed>) = 0 [pid 6163] <... memfd_create resumed>) = 3 [pid 6162] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6159] <... munmap resumed>) = 0 [pid 6159] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6159] close(3 [pid 6163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6159] <... close resumed>) = 0 [pid 6159] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6158] <... futex resumed>) = 0 [pid 6158] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6158] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6159] <... futex resumed>) = 1 [pid 6159] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6159] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6158] <... futex resumed>) = 0 [pid 6158] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6158] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6159] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6159] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6158] <... futex resumed>) = 0 [pid 6159] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6158] exit_group(0 [pid 6159] <... futex resumed>) = ? [pid 6158] <... exit_group resumed>) = ? [pid 6159] +++ exited with 0 +++ [pid 6158] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6158, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=28 /* 0.28 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6164 attached , child_tidptr=0x55556c203690) = 6164 [pid 6164] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6164] setpgid(0, 0) = 0 [pid 6164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6164] write(3, "1000", 4) = 4 [pid 6164] close(3 [pid 6161] <... write resumed>) = 16777216 [pid 6164] <... close resumed>) = 0 [pid 6161] munmap(0x7fb71c400000, 138412032 [pid 6164] write(1, "executing program\n", 18executing program ) = 18 [pid 6164] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6164] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6164] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6164] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6164] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6164] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6165 attached => {parent_tid=[6165]}, 88) = 6165 [pid 6165] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6164] rt_sigprocmask(SIG_SETMASK, [], [pid 6165] <... rseq resumed>) = 0 [pid 6165] set_robust_list(0x7fb72497a9a0, 24 [pid 6164] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6165] <... set_robust_list resumed>) = 0 [pid 6164] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6165] rt_sigprocmask(SIG_SETMASK, [], [pid 6164] <... futex resumed>) = 0 [pid 6165] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6164] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6165] memfd_create("syzkaller", 0) = 3 [pid 6165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6161] <... munmap resumed>) = 0 [pid 6161] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6161] close(3 [pid 6163] <... write resumed>) = 16777216 [pid 6163] munmap(0x7fb71c400000, 138412032) = 0 [pid 6163] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6163] close(3 [pid 6165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6161] <... close resumed>) = 0 [pid 6161] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6160] <... futex resumed>) = 0 [pid 6161] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6160] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6161] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6161] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6160] <... futex resumed>) = 0 [pid 6161] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6160] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6161] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6161] <... futex resumed>) = 0 [pid 6160] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6161] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6160] <... futex resumed>) = 0 [pid 6161] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6160] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6161] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6161] <... futex resumed>) = 0 [pid 6160] exit_group(0) = ? [pid 6161] +++ exited with 0 +++ [pid 6160] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6160, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6166 attached , child_tidptr=0x55556c203690) = 6166 [pid 6166] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6166] setpgid(0, 0) = 0 [pid 6166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6166] write(3, "1000", 4) = 4 executing program [pid 6166] close(3) = 0 [pid 6166] write(1, "executing program\n", 18) = 18 [pid 6166] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6166] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6166] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6166] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6166] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6166] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6167 attached => {parent_tid=[6167]}, 88) = 6167 [pid 6166] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6166] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6166] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6167] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6167] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6167] memfd_create("syzkaller", 0) = 3 [pid 6167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6163] <... close resumed>) = 0 [pid 6163] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6163] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6162] <... futex resumed>) = 0 [pid 6162] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] <... futex resumed>) = 0 [pid 6162] <... futex resumed>) = 1 [pid 6163] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6162] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6163] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6163] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6162] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6162] <... futex resumed>) = 0 [pid 6163] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6162] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6163] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6163] <... futex resumed>) = 0 [pid 6162] exit_group(0) = ? [pid 6163] +++ exited with 0 +++ [pid 6162] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6162, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6168 attached , child_tidptr=0x55556c203690) = 6168 [pid 6168] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6168] setpgid(0, 0) = 0 [pid 6168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6168] write(3, "1000", 4) = 4 [pid 6168] close(3) = 0 executing program [pid 6168] write(1, "executing program\n", 18) = 18 [pid 6168] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6165] <... write resumed>) = 16777216 [pid 6168] <... futex resumed>) = 0 [pid 6168] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6168] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6168] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6168] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6168] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6169]}, 88) = 6169 [pid 6168] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6168] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6165] munmap(0x7fb71c400000, 138412032 [pid 6168] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6169 attached [pid 6169] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6169] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6169] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6169] memfd_create("syzkaller", 0) = 3 [pid 6169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6165] <... munmap resumed>) = 0 [pid 6165] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6165] close(3 [pid 6167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6165] <... close resumed>) = 0 [pid 6165] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6164] <... futex resumed>) = 0 [pid 6164] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6164] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6165] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6165] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6164] <... futex resumed>) = 0 [pid 6164] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6164] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6165] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6165] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6164] <... futex resumed>) = 0 [pid 6165] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6164] exit_group(0 [pid 6165] <... futex resumed>) = ? [pid 6164] <... exit_group resumed>) = ? [pid 6165] +++ exited with 0 +++ [pid 6164] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6164, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6170 ./strace-static-x86_64: Process 6170 attached [pid 6170] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6170] setpgid(0, 0) = 0 [pid 6170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6170] write(3, "1000", 4) = 4 [pid 6170] close(3) = 0 executing program [pid 6170] write(1, "executing program\n", 18) = 18 [pid 6170] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6170] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6170] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6170] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6170] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6170] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6171 attached => {parent_tid=[6171]}, 88) = 6171 [pid 6171] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6170] rt_sigprocmask(SIG_SETMASK, [], [pid 6171] <... rseq resumed>) = 0 [pid 6170] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6171] set_robust_list(0x7fb72497a9a0, 24 [pid 6170] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6171] <... set_robust_list resumed>) = 0 [pid 6170] <... futex resumed>) = 0 [pid 6171] rt_sigprocmask(SIG_SETMASK, [], [pid 6170] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6171] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6171] memfd_create("syzkaller", 0) = 3 [pid 6171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6167] <... write resumed>) = 16777216 [pid 6167] munmap(0x7fb71c400000, 138412032) = 0 [pid 6167] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6167] close(3 [pid 6169] <... write resumed>) = 16777216 [pid 6169] munmap(0x7fb71c400000, 138412032 [pid 6171] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6169] <... munmap resumed>) = 0 [pid 6169] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6169] close(3) = 0 [pid 6169] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6168] <... futex resumed>) = 0 [pid 6168] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6169] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6168] <... futex resumed>) = 0 [pid 6168] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6169] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6169] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6168] <... futex resumed>) = 0 [pid 6169] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6167] <... close resumed>) = 0 [pid 6168] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6169] <... futex resumed>) = 0 [pid 6168] <... futex resumed>) = 1 [pid 6167] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6169] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6168] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6169] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6167] <... futex resumed>) = 1 [pid 6166] <... futex resumed>) = 0 [pid 6169] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6167] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6166] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6169] <... futex resumed>) = 1 [pid 6168] <... futex resumed>) = 0 [pid 6167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6166] <... futex resumed>) = 0 [pid 6169] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6168] exit_group(0 [pid 6167] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6166] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6169] <... futex resumed>) = ? [pid 6168] <... exit_group resumed>) = ? [pid 6167] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6169] +++ exited with 0 +++ [pid 6168] +++ exited with 0 +++ [pid 6167] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6166] <... futex resumed>) = 0 [pid 6167] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6166] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6168, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=36 /* 0.36 s */} --- [pid 6167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6166] <... futex resumed>) = 0 [pid 6167] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6166] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6167] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6167] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6167] <... futex resumed>) = 1 [pid 6166] <... futex resumed>) = 0 [pid 6167] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6166] exit_group(0) = ? [pid 6167] <... futex resumed>) = ? [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6172 attached [pid 6167] +++ exited with 0 +++ [pid 6166] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6166, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6172 [pid 6172] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6172] setpgid(0, 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6172] <... setpgid resumed>) = 0 [pid 6172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6172] <... openat resumed>) = 3 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6173 attached [pid 6172] write(3, "1000", 4) = 4 [pid 6171] <... write resumed>) = 16777216 [pid 6171] munmap(0x7fb71c400000, 138412032 [pid 6173] set_robust_list(0x55556c2036a0, 24 [pid 6172] close(3 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6173 [pid 6173] <... set_robust_list resumed>) = 0 [pid 6172] <... close resumed>) = 0 executing program [pid 6172] write(1, "executing program\n", 18) = 18 [pid 6172] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6172] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6172] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6172] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6172] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6172] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6174 attached [pid 6174] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6172] <... clone3 resumed> => {parent_tid=[6174]}, 88) = 6174 [pid 6174] set_robust_list(0x7fb72497a9a0, 24 [pid 6172] rt_sigprocmask(SIG_SETMASK, [], [pid 6174] <... set_robust_list resumed>) = 0 [pid 6172] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6174] rt_sigprocmask(SIG_SETMASK, [], [pid 6172] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6172] <... futex resumed>) = 0 [pid 6174] memfd_create("syzkaller", 0 [pid 6172] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6174] <... memfd_create resumed>) = 3 [pid 6173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6171] <... munmap resumed>) = 0 [pid 6173] <... prctl resumed>) = 0 [pid 6174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6171] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6174] <... mmap resumed>) = 0x7fb71c400000 [pid 6173] setpgid(0, 0 [pid 6171] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6173] <... setpgid resumed>) = 0 [pid 6173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6173] write(3, "1000", 4executing program ) = 4 [pid 6173] close(3) = 0 [pid 6173] write(1, "executing program\n", 18) = 18 [pid 6173] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6173] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6173] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6173] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6173] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6173] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6175 attached [pid 6171] close(3 [pid 6175] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6173] <... clone3 resumed> => {parent_tid=[6175]}, 88) = 6175 [pid 6175] set_robust_list(0x7fb72497a9a0, 24 [pid 6173] rt_sigprocmask(SIG_SETMASK, [], [pid 6175] <... set_robust_list resumed>) = 0 [pid 6173] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6175] rt_sigprocmask(SIG_SETMASK, [], [pid 6173] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6175] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6173] <... futex resumed>) = 0 [pid 6175] memfd_create("syzkaller", 0 [pid 6173] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6175] <... memfd_create resumed>) = 3 [pid 6175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 215.633856][ T111] blkno = 8ed2c, nblocks = 1 [ 215.638572][ T110] blkno = 8ed2c, nblocks = 1 [ 215.652315][ T111] ERROR: (device loop1): dbUpdatePMap: blocks are outside the map [ 215.652315][ T111] [ 215.652467][ T110] ERROR: (device loop0): dbUpdatePMap: blocks are outside the map [ 215.652467][ T110] [ 215.712886][ T111] blkno = 8ed2c, nblocks = 1 [ 215.717544][ T111] ERROR: (device loop4): dbUpdatePMap: blocks are outside the map [ 215.717544][ T111] [pid 6174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6171] <... close resumed>) = 0 [pid 6171] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6170] <... futex resumed>) = 0 [pid 6171] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6170] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6171] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6170] <... futex resumed>) = 0 [pid 6171] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6170] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6171] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6170] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6170] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6171] <... futex resumed>) = 0 [pid 6170] <... futex resumed>) = 1 [pid 6171] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6170] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6171] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6171] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6170] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6171] <... futex resumed>) = 0 [pid 6171] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6170] exit_group(0) = ? [pid 6171] <... futex resumed>) = ? [pid 6171] +++ exited with 0 +++ [pid 6170] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6170, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=29 /* 0.29 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6176 attached , child_tidptr=0x55556c203690) = 6176 [pid 6176] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6176] setpgid(0, 0) = 0 [pid 6176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6176] write(3, "1000", 4) = 4 [pid 6176] close(3) = 0 executing program [pid 6176] write(1, "executing program\n", 18) = 18 [pid 6176] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6176] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6176] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6176] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6176] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6176] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6177 attached [pid 6177] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6176] <... clone3 resumed> => {parent_tid=[6177]}, 88) = 6177 [pid 6177] <... rseq resumed>) = 0 [pid 6177] set_robust_list(0x7fb72497a9a0, 24 [pid 6176] rt_sigprocmask(SIG_SETMASK, [], [pid 6177] <... set_robust_list resumed>) = 0 [pid 6176] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6177] rt_sigprocmask(SIG_SETMASK, [], [pid 6176] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6177] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6176] <... futex resumed>) = 0 [pid 6177] memfd_create("syzkaller", 0 [pid 6176] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6177] <... memfd_create resumed>) = 3 [pid 6177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6175] <... write resumed>) = 16777216 [pid 6175] munmap(0x7fb71c400000, 138412032) = 0 [pid 6175] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6175] close(3 [pid 6177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6174] <... write resumed>) = 16777216 [pid 6174] munmap(0x7fb71c400000, 138412032) = 0 [pid 6174] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6174] close(3 [pid 6175] <... close resumed>) = 0 [pid 6175] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6175] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6173] <... futex resumed>) = 0 [pid 6173] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6175] <... futex resumed>) = 0 [pid 6173] <... futex resumed>) = 1 [pid 6175] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6173] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6175] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6175] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6173] <... futex resumed>) = 0 [pid 6173] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6175] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6173] <... futex resumed>) = 0 [pid 6175] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6173] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6175] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6175] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6173] exit_group(0 [pid 6175] <... futex resumed>) = ? [pid 6173] <... exit_group resumed>) = ? [pid 6175] +++ exited with 0 +++ [pid 6173] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6173, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6178 attached , child_tidptr=0x55556c203690) = 6178 [pid 6178] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6178] setpgid(0, 0) = 0 [pid 6178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6178] write(3, "1000", 4) = 4 [pid 6178] close(3) = 0 executing program [pid 6178] write(1, "executing program\n", 18) = 18 [pid 6178] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6178] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6178] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6178] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6178] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6178] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6178] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6179 attached [pid 6179] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6178] <... clone3 resumed> => {parent_tid=[6179]}, 88) = 6179 [pid 6179] <... rseq resumed>) = 0 [pid 6178] rt_sigprocmask(SIG_SETMASK, [], [pid 6179] set_robust_list(0x7fb72497a9a0, 24 [pid 6178] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6179] <... set_robust_list resumed>) = 0 [pid 6178] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6179] rt_sigprocmask(SIG_SETMASK, [], [pid 6178] <... futex resumed>) = 0 [pid 6179] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6178] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6179] memfd_create("syzkaller", 0) = 3 [pid 6179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6177] <... write resumed>) = 16777216 [pid 6177] munmap(0x7fb71c400000, 138412032 [pid 6174] <... close resumed>) = 0 [pid 6177] <... munmap resumed>) = 0 [pid 6174] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6177] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6177] close(3 [pid 6174] <... futex resumed>) = 1 [pid 6172] <... futex resumed>) = 0 [pid 6174] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6172] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] <... futex resumed>) = 0 [pid 6172] <... futex resumed>) = 1 [pid 6174] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6172] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6174] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6174] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6172] <... futex resumed>) = 0 [pid 6174] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6172] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] <... futex resumed>) = 0 [pid 6172] <... futex resumed>) = 1 [pid 6172] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6174] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6174] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6172] <... futex resumed>) = 0 [pid 6174] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6172] exit_group(0 [pid 6174] <... futex resumed>) = ? [pid 6172] <... exit_group resumed>) = ? [pid 6174] +++ exited with 0 +++ [pid 6172] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6172, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6180 ./strace-static-x86_64: Process 6180 attached [pid 6179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6180] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6180] setpgid(0, 0) = 0 [pid 6180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6180] write(3, "1000", 4) = 4 [pid 6180] close(3) = 0 executing program [pid 6180] write(1, "executing program\n", 18) = 18 [pid 6180] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6180] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6180] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6180] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6180] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6180] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6181 attached => {parent_tid=[6181]}, 88) = 6181 [pid 6181] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6180] rt_sigprocmask(SIG_SETMASK, [], [pid 6181] <... rseq resumed>) = 0 [pid 6180] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6181] set_robust_list(0x7fb72497a9a0, 24 [pid 6180] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6181] <... set_robust_list resumed>) = 0 [pid 6180] <... futex resumed>) = 0 [pid 6181] rt_sigprocmask(SIG_SETMASK, [], [pid 6180] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6181] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6181] memfd_create("syzkaller", 0) = 3 [pid 6181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6177] <... close resumed>) = 0 [pid 6177] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6176] <... futex resumed>) = 0 [pid 6177] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6176] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6177] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6176] <... futex resumed>) = 0 [pid 6177] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6176] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6177] <... futex resumed>) = 0 [pid 6176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6177] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6176] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6176] <... futex resumed>) = 0 [pid 6177] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6176] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6177] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6177] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6176] <... futex resumed>) = 0 [pid 6177] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6176] exit_group(0) = ? [pid 6177] <... futex resumed>) = ? [pid 6177] +++ exited with 0 +++ [pid 6176] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6176, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6182 attached , child_tidptr=0x55556c203690) = 6182 [pid 6182] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6182] setpgid(0, 0) = 0 [pid 6182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6182] write(3, "1000", 4) = 4 [pid 6182] close(3) = 0 executing program [pid 6182] write(1, "executing program\n", 18) = 18 [pid 6182] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6182] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6182] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6182] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6182] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6182] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6183 attached => {parent_tid=[6183]}, 88) = 6183 [pid 6182] rt_sigprocmask(SIG_SETMASK, [], [pid 6179] <... write resumed>) = 16777216 [pid 6182] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6182] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6182] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6183] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6179] munmap(0x7fb71c400000, 138412032 [pid 6183] <... rseq resumed>) = 0 [pid 6183] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6183] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6183] memfd_create("syzkaller", 0) = 3 [pid 6183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6179] <... munmap resumed>) = 0 [pid 6179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6179] close(3 [pid 6181] <... write resumed>) = 16777216 [pid 6181] munmap(0x7fb71c400000, 138412032) = 0 [pid 6181] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6181] close(3 [pid 6183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6179] <... close resumed>) = 0 [pid 6179] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6179] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6178] <... futex resumed>) = 0 [pid 6178] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6178] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6179] <... futex resumed>) = 0 [pid 6179] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6179] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6178] <... futex resumed>) = 0 [pid 6179] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6178] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6179] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6178] <... futex resumed>) = 0 [pid 6179] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6178] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6179] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6178] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6178] exit_group(0 [pid 6179] <... futex resumed>) = ? [pid 6178] <... exit_group resumed>) = ? [pid 6179] +++ exited with 0 +++ [pid 6178] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6178, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6184 ./strace-static-x86_64: Process 6184 attached [pid 6184] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6184] setpgid(0, 0) = 0 [pid 6184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6184] write(3, "1000", 4) = 4 [pid 6184] close(3) = 0 [pid 6184] write(1, "executing program\n", 18executing program ) = 18 [pid 6184] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6184] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6184] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6184] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6184] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6184] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6185]}, 88) = 6185 [pid 6184] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6184] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6185 attached ) = 0 [pid 6185] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6184] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6185] <... rseq resumed>) = 0 [pid 6185] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6185] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6185] memfd_create("syzkaller", 0) = 3 [pid 6185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6181] <... close resumed>) = 0 [pid 6181] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6180] <... futex resumed>) = 0 [pid 6180] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6181] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6180] <... futex resumed>) = 0 [pid 6181] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6180] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6181] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6181] <... futex resumed>) = 0 [pid 6180] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6181] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6180] <... futex resumed>) = 0 [pid 6180] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6181] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6181] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6180] <... futex resumed>) = 0 [pid 6180] exit_group(0) = ? [pid 6181] +++ exited with 0 +++ [pid 6180] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6180, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6186 ./strace-static-x86_64: Process 6186 attached [pid 6186] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6186] setpgid(0, 0) = 0 [pid 6186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6186] write(3, "1000", 4) = 4 [pid 6186] close(3) = 0 [pid 6186] write(1, "executing program\n", 18executing program ) = 18 [pid 6186] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6186] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6186] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6186] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6186] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6186] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6186] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6187 attached => {parent_tid=[6187]}, 88) = 6187 [pid 6187] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6186] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6187] <... rseq resumed>) = 0 [pid 6186] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6187] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6186] <... futex resumed>) = 0 [pid 6183] <... write resumed>) = 16777216 [pid 6187] rt_sigprocmask(SIG_SETMASK, [], [pid 6186] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6187] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6187] memfd_create("syzkaller", 0) = 3 [pid 6183] munmap(0x7fb71c400000, 138412032 [pid 6187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6187] <... mmap resumed>) = 0x7fb71c400000 [pid 6183] <... munmap resumed>) = 0 [pid 6183] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6183] close(3 [pid 6187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6185] <... write resumed>) = 16777216 [pid 6185] munmap(0x7fb71c400000, 138412032 [pid 6183] <... close resumed>) = 0 [pid 6185] <... munmap resumed>) = 0 [pid 6185] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6183] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6183] <... futex resumed>) = 1 [pid 6182] <... futex resumed>) = 0 [pid 6183] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6182] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] close(3 [pid 6183] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6182] <... futex resumed>) = 0 [pid 6183] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6182] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6183] <... futex resumed>) = 0 [pid 6182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6183] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6182] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6183] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6182] <... futex resumed>) = 0 [pid 6183] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6182] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6183] <... futex resumed>) = 0 [pid 6182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6183] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6182] exit_group(0 [pid 6183] <... futex resumed>) = ? [pid 6182] <... exit_group resumed>) = ? [pid 6183] +++ exited with 0 +++ [pid 6182] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6182, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6188 ./strace-static-x86_64: Process 6188 attached [pid 6188] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6188] setpgid(0, 0) = 0 [pid 6188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6188] write(3, "1000", 4) = 4 [pid 6188] close(3) = 0 executing program [pid 6188] write(1, "executing program\n", 18) = 18 [pid 6188] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6188] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6188] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6188] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6188] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6188] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6189 attached => {parent_tid=[6189]}, 88) = 6189 [pid 6189] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6188] rt_sigprocmask(SIG_SETMASK, [], [pid 6189] <... rseq resumed>) = 0 [pid 6189] set_robust_list(0x7fb72497a9a0, 24 [pid 6188] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6189] <... set_robust_list resumed>) = 0 [pid 6188] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6189] rt_sigprocmask(SIG_SETMASK, [], [pid 6188] <... futex resumed>) = 0 [pid 6189] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6188] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6189] memfd_create("syzkaller", 0) = 3 [pid 6189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6187] <... write resumed>) = 16777216 [pid 6187] munmap(0x7fb71c400000, 138412032 [pid 6185] <... close resumed>) = 0 [pid 6187] <... munmap resumed>) = 0 [pid 6185] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6187] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6185] <... futex resumed>) = 1 [pid 6184] <... futex resumed>) = 0 [pid 6187] close(3 [pid 6185] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6184] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6184] <... futex resumed>) = 0 [pid 6184] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6185] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6185] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6185] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6184] <... futex resumed>) = 0 [pid 6184] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] <... futex resumed>) = 0 [pid 6184] <... futex resumed>) = 1 [pid 6185] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6184] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6185] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6185] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6185] <... futex resumed>) = 0 [pid 6185] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6184] exit_group(0 [pid 6185] <... futex resumed>) = ? [pid 6184] <... exit_group resumed>) = ? [pid 6185] +++ exited with 0 +++ [pid 6184] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6184, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6190 attached [pid 6189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6190 [pid 6190] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6190] setpgid(0, 0) = 0 [pid 6190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6190] write(3, "1000", 4) = 4 [pid 6190] close(3) = 0 executing program [pid 6190] write(1, "executing program\n", 18) = 18 [pid 6190] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6190] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6190] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6190] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6190] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6190] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6191 attached => {parent_tid=[6191]}, 88) = 6191 [pid 6191] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6190] rt_sigprocmask(SIG_SETMASK, [], [pid 6191] <... rseq resumed>) = 0 [pid 6190] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6191] set_robust_list(0x7fb72497a9a0, 24 [pid 6190] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] <... set_robust_list resumed>) = 0 [pid 6190] <... futex resumed>) = 0 [pid 6191] rt_sigprocmask(SIG_SETMASK, [], [pid 6190] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6191] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6191] memfd_create("syzkaller", 0) = 3 [pid 6191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6187] <... close resumed>) = 0 [pid 6187] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6186] <... futex resumed>) = 0 [pid 6187] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6186] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6186] <... futex resumed>) = 0 [pid 6187] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6186] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6187] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6187] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6186] <... futex resumed>) = 0 [pid 6187] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6186] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6187] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6186] <... futex resumed>) = 0 [pid 6187] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6187] <... futex resumed>) = 0 [pid 6186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6187] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6186] exit_group(0 [pid 6187] <... futex resumed>) = ? [pid 6186] <... exit_group resumed>) = ? [pid 6191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6187] +++ exited with 0 +++ [pid 6186] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6186, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=28 /* 0.28 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6192 attached , child_tidptr=0x55556c203690) = 6192 [pid 6192] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6192] setpgid(0, 0) = 0 [pid 6192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6192] write(3, "1000", 4) = 4 executing program [pid 6192] close(3) = 0 [pid 6192] write(1, "executing program\n", 18) = 18 [pid 6192] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6192] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6192] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6192] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6192] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6189] <... write resumed>) = 16777216 [pid 6192] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6189] munmap(0x7fb71c400000, 138412032./strace-static-x86_64: Process 6193 attached [pid 6193] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6192] <... clone3 resumed> => {parent_tid=[6193]}, 88) = 6193 [pid 6193] <... rseq resumed>) = 0 [pid 6193] set_robust_list(0x7fb72497a9a0, 24 [pid 6192] rt_sigprocmask(SIG_SETMASK, [], [pid 6193] <... set_robust_list resumed>) = 0 [pid 6193] rt_sigprocmask(SIG_SETMASK, [], [pid 6192] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6193] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6193] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6192] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6192] <... futex resumed>) = 0 [pid 6193] memfd_create("syzkaller", 0 [pid 6192] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6193] <... memfd_create resumed>) = 3 [pid 6193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6189] <... munmap resumed>) = 0 [pid 6189] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6189] close(3 [pid 6193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6189] <... close resumed>) = 0 [pid 6189] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6188] <... futex resumed>) = 0 [pid 6189] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6188] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6189] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6188] <... futex resumed>) = 0 [pid 6189] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6188] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6189] <... futex resumed>) = 0 [pid 6188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6189] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6188] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6189] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6189] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6188] <... futex resumed>) = 0 [pid 6189] <... futex resumed>) = 0 [pid 6189] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6188] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6191] <... write resumed>) = 16777216 [pid 6188] exit_group(0 [pid 6189] <... futex resumed>) = ? [pid 6188] <... exit_group resumed>) = ? [pid 6191] munmap(0x7fb71c400000, 138412032 [pid 6189] +++ exited with 0 +++ [pid 6188] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6188, si_uid=0, si_status=0, si_utime=0, si_stime=38 /* 0.38 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6194 attached , child_tidptr=0x55556c203690) = 6194 [pid 6194] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6194] setpgid(0, 0) = 0 [pid 6194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6194] write(3, "1000", 4) = 4 [pid 6194] close(3) = 0 executing program [pid 6194] write(1, "executing program\n", 18) = 18 [pid 6194] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6194] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6194] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6194] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6191] <... munmap resumed>) = 0 [pid 6194] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6194] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6195 attached [pid 6195] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6195] set_robust_list(0x7fb72497a9a0, 24 [pid 6194] <... clone3 resumed> => {parent_tid=[6195]}, 88) = 6195 [pid 6191] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6194] rt_sigprocmask(SIG_SETMASK, [], [pid 6191] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6195] <... set_robust_list resumed>) = 0 [pid 6194] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6195] rt_sigprocmask(SIG_SETMASK, [], [pid 6194] <... futex resumed>) = 0 [pid 6194] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6191] close(3 [pid 6195] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6195] memfd_create("syzkaller", 0) = 3 [pid 6195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6193] <... write resumed>) = 16777216 [pid 6193] munmap(0x7fb71c400000, 138412032 [pid 6191] <... close resumed>) = 0 [pid 6191] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6190] <... futex resumed>) = 0 [pid 6191] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6190] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6190] <... futex resumed>) = 0 [pid 6191] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6190] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6191] <... futex resumed>) = 0 [pid 6190] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6190] <... futex resumed>) = 0 [pid 6193] <... munmap resumed>) = 0 [pid 6191] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6191] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] <... futex resumed>) = 0 [pid 6190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6191] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6190] exit_group(0 [pid 6191] <... futex resumed>) = ? [pid 6190] <... exit_group resumed>) = ? [pid 6191] +++ exited with 0 +++ [pid 6190] +++ exited with 0 +++ [pid 6195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6193] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6190, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6193] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] <... restart_syscall resumed>) = 0 [pid 6193] close(3 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6196 ./strace-static-x86_64: Process 6196 attached [pid 6196] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6196] setpgid(0, 0) = 0 [pid 6196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6196] write(3, "1000", 4) = 4 [pid 6196] close(3) = 0 [pid 6196] write(1, "executing program\n", 18executing program ) = 18 [pid 6196] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6196] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6196] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6196] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6196] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6197]}, 88) = 6197 [pid 6196] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6196] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6196] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6197 attached [pid 6197] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6197] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6197] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6197] memfd_create("syzkaller", 0) = 3 [pid 6197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6197] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6193] <... close resumed>) = 0 [pid 6193] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6192] <... futex resumed>) = 0 [pid 6193] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6192] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6193] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6192] <... futex resumed>) = 0 [pid 6192] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6193] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6193] <... futex resumed>) = 0 [pid 6192] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6193] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6192] <... futex resumed>) = 0 [pid 6193] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6192] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6193] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6192] <... futex resumed>) = 0 [pid 6192] exit_group(0 [pid 6193] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6192] <... exit_group resumed>) = ? [pid 6193] +++ exited with 0 +++ [pid 6192] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6192, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6198 ./strace-static-x86_64: Process 6198 attached [pid 6195] <... write resumed>) = 16777216 [pid 6198] set_robust_list(0x55556c2036a0, 24 [pid 6195] munmap(0x7fb71c400000, 138412032executing program [pid 6198] <... set_robust_list resumed>) = 0 [pid 6198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6198] setpgid(0, 0) = 0 [pid 6198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6198] write(3, "1000", 4) = 4 [pid 6198] close(3) = 0 [pid 6198] write(1, "executing program\n", 18) = 18 [pid 6198] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6198] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6198] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6198] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6198] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6198] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6198] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6199]}, 88) = 6199 [pid 6198] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6198] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6198] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6199 attached [pid 6199] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6199] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6199] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6199] memfd_create("syzkaller", 0) = 3 [pid 6199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6195] <... munmap resumed>) = 0 [pid 6195] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6195] close(3 [pid 6199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6197] <... write resumed>) = 16777216 [pid 6197] munmap(0x7fb71c400000, 138412032) = 0 [pid 6197] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6197] close(3 [pid 6195] <... close resumed>) = 0 [pid 6195] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6194] <... futex resumed>) = 0 [pid 6195] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6194] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6195] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6194] <... futex resumed>) = 0 [pid 6195] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6194] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6195] <... futex resumed>) = 0 [pid 6195] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6194] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6195] <... futex resumed>) = 0 [pid 6194] <... futex resumed>) = 1 [pid 6194] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6195] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6195] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6194] <... futex resumed>) = 0 [pid 6195] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6194] exit_group(0 [pid 6195] <... futex resumed>) = ? [pid 6194] <... exit_group resumed>) = ? [pid 6195] +++ exited with 0 +++ [pid 6194] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6194, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6200 ./strace-static-x86_64: Process 6200 attached [pid 6200] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6200] setpgid(0, 0) = 0 [pid 6200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6200] write(3, "1000", 4) = 4 executing program [pid 6200] close(3) = 0 [pid 6200] write(1, "executing program\n", 18) = 18 [pid 6200] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6200] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6200] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6200] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6200] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6201]}, 88) = 6201 ./strace-static-x86_64: Process 6201 attached [pid 6201] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6200] rt_sigprocmask(SIG_SETMASK, [], [pid 6201] <... rseq resumed>) = 0 [pid 6200] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6201] set_robust_list(0x7fb72497a9a0, 24 [pid 6200] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] <... set_robust_list resumed>) = 0 [pid 6200] <... futex resumed>) = 0 [pid 6200] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6201] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6201] memfd_create("syzkaller", 0) = 3 [pid 6201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6199] <... write resumed>) = 16777216 [pid 6199] munmap(0x7fb71c400000, 138412032) = 0 [pid 6199] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6199] close(3 [pid 6197] <... close resumed>) = 0 [pid 6197] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6197] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] <... futex resumed>) = 0 [pid 6196] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6197] <... futex resumed>) = 0 [pid 6197] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6197] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6197] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] <... futex resumed>) = 1 [pid 6196] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6196] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6197] <... futex resumed>) = 0 [pid 6196] <... futex resumed>) = 1 [pid 6197] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6197] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6197] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6196] exit_group(0 [pid 6197] <... futex resumed>) = ? [pid 6196] <... exit_group resumed>) = ? [pid 6201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6197] +++ exited with 0 +++ [pid 6196] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6196, si_uid=0, si_status=0, si_utime=0, si_stime=40 /* 0.40 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6202 ./strace-static-x86_64: Process 6202 attached [pid 6202] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6202] setpgid(0, 0) = 0 [pid 6202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6202] write(3, "1000", 4) = 4 [pid 6202] close(3) = 0 executing program [pid 6202] write(1, "executing program\n", 18) = 18 [pid 6202] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6202] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6202] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6202] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6202] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6202] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6203 attached [pid 6203] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6202] <... clone3 resumed> => {parent_tid=[6203]}, 88) = 6203 [pid 6203] <... rseq resumed>) = 0 [pid 6202] rt_sigprocmask(SIG_SETMASK, [], [pid 6203] set_robust_list(0x7fb72497a9a0, 24 [pid 6202] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6202] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] <... set_robust_list resumed>) = 0 [pid 6202] <... futex resumed>) = 0 [pid 6203] rt_sigprocmask(SIG_SETMASK, [], [pid 6202] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6203] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6203] memfd_create("syzkaller", 0) = 3 [pid 6203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6199] <... close resumed>) = 0 [pid 6199] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6198] <... futex resumed>) = 0 [pid 6199] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6198] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6198] <... futex resumed>) = 0 [pid 6199] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6198] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6199] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6199] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6198] <... futex resumed>) = 0 [pid 6198] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6199] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6198] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6199] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6199] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6198] <... futex resumed>) = 0 [pid 6198] exit_group(0) = ? [pid 6199] +++ exited with 0 +++ [pid 6198] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6198, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6204 attached , child_tidptr=0x55556c203690) = 6204 [pid 6204] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6204] setpgid(0, 0) = 0 [pid 6204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6204] write(3, "1000", 4) = 4 [pid 6204] close(3) = 0 executing program [pid 6204] write(1, "executing program\n", 18) = 18 [pid 6204] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6204] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6204] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6204] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6204] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6204] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6204] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6205 attached [pid 6205] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6204] <... clone3 resumed> => {parent_tid=[6205]}, 88) = 6205 [pid 6205] <... rseq resumed>) = 0 [pid 6204] rt_sigprocmask(SIG_SETMASK, [], [pid 6205] set_robust_list(0x7fb72497a9a0, 24 [pid 6204] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6205] <... set_robust_list resumed>) = 0 [pid 6204] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6205] rt_sigprocmask(SIG_SETMASK, [], [pid 6204] <... futex resumed>) = 0 [pid 6205] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6204] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6205] memfd_create("syzkaller", 0) = 3 [pid 6205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6201] <... write resumed>) = 16777216 [pid 6201] munmap(0x7fb71c400000, 138412032 [pid 6203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6201] <... munmap resumed>) = 0 [pid 6201] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6201] close(3 [pid 6205] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6201] <... close resumed>) = 0 [pid 6201] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6200] <... futex resumed>) = 0 [pid 6200] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6200] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6201] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6201] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6200] <... futex resumed>) = 0 [pid 6201] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6200] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6200] <... futex resumed>) = 0 [pid 6200] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6201] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6201] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6200] <... futex resumed>) = 0 [pid 6200] exit_group(0 [pid 6201] <... futex resumed>) = ? [pid 6200] <... exit_group resumed>) = ? [pid 6201] +++ exited with 0 +++ [pid 6200] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6200, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6206 attached , child_tidptr=0x55556c203690) = 6206 [pid 6206] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6206] setpgid(0, 0) = 0 [pid 6206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6203] <... write resumed>) = 16777216 [pid 6206] write(3, "1000", 4) = 4 [pid 6203] munmap(0x7fb71c400000, 138412032 [pid 6206] close(3) = 0 [pid 6206] write(1, "executing program\n", 18executing program ) = 18 [pid 6206] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6206] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6206] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6206] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6206] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6206] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6206] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6207 attached => {parent_tid=[6207]}, 88) = 6207 [pid 6206] rt_sigprocmask(SIG_SETMASK, [], [pid 6207] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6206] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6207] <... rseq resumed>) = 0 [pid 6207] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6207] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6207] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6206] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6206] <... futex resumed>) = 0 [pid 6207] memfd_create("syzkaller", 0 [pid 6206] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6207] <... memfd_create resumed>) = 3 [pid 6207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6203] <... munmap resumed>) = 0 [pid 6203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6203] close(3 [pid 6205] <... write resumed>) = 16777216 [pid 6205] munmap(0x7fb71c400000, 138412032) = 0 [pid 6205] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6205] close(3 [pid 6207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6203] <... close resumed>) = 0 [pid 6203] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6202] <... futex resumed>) = 0 [pid 6202] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6202] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6203] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6203] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6202] <... futex resumed>) = 0 [pid 6203] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6202] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] <... futex resumed>) = 0 [pid 6202] <... futex resumed>) = 1 [pid 6202] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6203] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6203] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6202] <... futex resumed>) = 0 [pid 6202] exit_group(0) = ? [pid 6203] +++ exited with 0 +++ [pid 6202] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6202, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6208 ./strace-static-x86_64: Process 6208 attached [pid 6208] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6208] setpgid(0, 0) = 0 [pid 6208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6208] write(3, "1000", 4) = 4 [pid 6208] close(3) = 0 [pid 6208] write(1, "executing program\n", 18) = 18 [pid 6208] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6208] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6208] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6208] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6208] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6208] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6209 attached => {parent_tid=[6209]}, 88) = 6209 [pid 6208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6208] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6208] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6209] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6209] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6209] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6209] memfd_create("syzkaller", 0) = 3 [pid 6209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6205] <... close resumed>) = 0 [pid 6205] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6204] <... futex resumed>) = 0 [pid 6204] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6204] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6205] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6205] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6204] <... futex resumed>) = 0 [pid 6205] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6204] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6205] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6204] <... futex resumed>) = 0 [pid 6205] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6205] <... futex resumed>) = 0 [pid 6204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6205] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6204] exit_group(0 [pid 6205] <... futex resumed>) = ? [pid 6204] <... exit_group resumed>) = ? [pid 6205] +++ exited with 0 +++ [pid 6204] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6204, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6210 ./strace-static-x86_64: Process 6210 attached [pid 6210] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6210] setpgid(0, 0) = 0 [pid 6210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6210] write(3, "1000", 4) = 4 [pid 6210] close(3) = 0 executing program [pid 6210] write(1, "executing program\n", 18) = 18 [pid 6210] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6210] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6210] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6210] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6210] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6210] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6211 attached [pid 6209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6210] <... clone3 resumed> => {parent_tid=[6211]}, 88) = 6211 [pid 6211] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6210] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6211] <... rseq resumed>) = 0 [pid 6210] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6210] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6211] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6211] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6211] memfd_create("syzkaller", 0) = 3 [pid 6211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6207] <... write resumed>) = 16777216 [pid 6207] munmap(0x7fb71c400000, 138412032) = 0 [pid 6207] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6207] close(3 [pid 6211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6209] <... write resumed>) = 16777216 [pid 6209] munmap(0x7fb71c400000, 138412032) = 0 [pid 6209] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6209] close(3 [pid 6207] <... close resumed>) = 0 [pid 6207] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6206] <... futex resumed>) = 0 [pid 6211] <... write resumed>) = 16777216 [pid 6207] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6211] munmap(0x7fb71c400000, 138412032 [pid 6206] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6207] <... futex resumed>) = 0 [pid 6207] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6206] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6207] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6207] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6206] <... futex resumed>) = 0 [pid 6207] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6206] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6206] <... futex resumed>) = 0 [pid 6207] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6206] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6207] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6207] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6206] <... futex resumed>) = 0 [pid 6207] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6206] exit_group(0) = ? [pid 6207] <... futex resumed>) = ? [pid 6207] +++ exited with 0 +++ [pid 6206] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6206, si_uid=0, si_status=0, si_utime=0, si_stime=39 /* 0.39 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6211] <... munmap resumed>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6211] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6211] close(3 [pid 6209] <... close resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6209] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6209] <... futex resumed>) = 1 [pid 6208] <... futex resumed>) = 0 [pid 6209] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 6212 attached [pid 6208] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6212] set_robust_list(0x55556c2036a0, 24 [pid 6209] <... futex resumed>) = 0 [pid 6208] <... futex resumed>) = 1 [pid 6208] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6212 [pid 6212] <... set_robust_list resumed>) = 0 [pid 6209] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6209] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6209] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6208] <... futex resumed>) = 0 [pid 6212] <... prctl resumed>) = 0 [pid 6209] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6208] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6212] setpgid(0, 0 [pid 6209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6212] <... setpgid resumed>) = 0 [pid 6208] <... futex resumed>) = 0 [pid 6212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6209] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6208] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6209] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6212] <... openat resumed>) = 3 [pid 6209] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6208] <... futex resumed>) = 0 [pid 6212] write(3, "1000", 4) = 4 [pid 6209] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6208] exit_group(0 [pid 6212] close(3 [pid 6209] <... futex resumed>) = ? [pid 6208] <... exit_group resumed>) = ? [pid 6212] <... close resumed>) = 0 [pid 6209] +++ exited with 0 +++ [pid 6212] write(1, "executing program\n", 18executing program ) = 18 [pid 6212] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6212] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6212] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6208] +++ exited with 0 +++ [pid 6212] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6208, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 6212] <... mmap resumed>) = 0x7fb72495a000 [pid 6212] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6212] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6213 attached [pid 6212] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6212] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6214 attached => {parent_tid=[6214]}, 88) = 6214 [pid 6212] rt_sigprocmask(SIG_SETMASK, [], [pid 6213] set_robust_list(0x55556c2036a0, 24 [pid 6212] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6212] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6213] <... set_robust_list resumed>) = 0 [pid 6212] <... futex resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6213 [pid 6213] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6212] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6213] <... prctl resumed>) = 0 [pid 6213] setpgid(0, 0) = 0 [pid 6214] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6214] <... rseq resumed>) = 0 [pid 6214] set_robust_list(0x7fb72497a9a0, 24 [pid 6213] <... openat resumed>) = 3 [pid 6214] <... set_robust_list resumed>) = 0 [pid 6214] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6213] write(3, "1000", 4 [pid 6214] memfd_create("syzkaller", 0 [pid 6213] <... write resumed>) = 4 [pid 6213] close(3) = 0 executing program [pid 6213] write(1, "executing program\n", 18 [pid 6214] <... memfd_create resumed>) = 3 [pid 6214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6213] <... write resumed>) = 18 [pid 6211] <... close resumed>) = 0 [pid 6211] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6214] <... mmap resumed>) = 0x7fb71c400000 [pid 6211] <... futex resumed>) = 1 [pid 6210] <... futex resumed>) = 0 [pid 6211] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6213] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... futex resumed>) = 0 [pid 6211] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6210] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6211] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6211] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6210] <... futex resumed>) = 0 [pid 6210] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6210] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6211] <... futex resumed>) = 1 [pid 6213] <... futex resumed>) = 0 [pid 6211] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6213] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6211] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6211] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6210] <... futex resumed>) = 0 [pid 6211] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] exit_group(0) = ? [pid 6211] <... futex resumed>) = ? [pid 6211] +++ exited with 0 +++ [pid 6210] +++ exited with 0 +++ [pid 6213] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6210, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 6213] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6213] <... mmap resumed>) = 0x7fb72495a000 [pid 6213] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6213] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6213] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5872] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6215 attached [pid 6213] <... clone3 resumed> => {parent_tid=[6215]}, 88) = 6215 [pid 6215] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6213] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6215] <... rseq resumed>) = 0 [pid 6213] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6215] set_robust_list(0x7fb72497a9a0, 24 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6215] <... set_robust_list resumed>) = 0 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6216 attached [pid 6215] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6216 [pid 6216] set_robust_list(0x55556c2036a0, 24 [pid 6215] memfd_create("syzkaller", 0 [pid 6216] <... set_robust_list resumed>) = 0 [pid 6216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6216] setpgid(0, 0) = 0 [pid 6215] <... memfd_create resumed>) = 3 [pid 6213] <... futex resumed>) = 0 [pid 6216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6213] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6215] <... mmap resumed>) = 0x7fb71c400000 [pid 6214] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6216] <... openat resumed>) = 3 [pid 6216] write(3, "1000", 4) = 4 [pid 6216] close(3) = 0 executing program [pid 6216] write(1, "executing program\n", 18) = 18 [pid 6216] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6216] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6216] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6216] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6216] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6217 attached [pid 6217] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6216] <... clone3 resumed> => {parent_tid=[6217]}, 88) = 6217 [pid 6217] <... rseq resumed>) = 0 [pid 6216] rt_sigprocmask(SIG_SETMASK, [], [pid 6217] set_robust_list(0x7fb72497a9a0, 24 [pid 6216] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6217] <... set_robust_list resumed>) = 0 [pid 6216] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] rt_sigprocmask(SIG_SETMASK, [], [pid 6216] <... futex resumed>) = 0 [pid 6217] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6216] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6217] memfd_create("syzkaller", 0) = 3 [pid 6217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6214] <... write resumed>) = 16777216 [pid 6214] munmap(0x7fb71c400000, 138412032) = 0 [pid 6214] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6214] close(3 [pid 6215] <... write resumed>) = 16777216 [pid 6215] munmap(0x7fb71c400000, 138412032) = 0 [pid 6215] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6215] close(3 [pid 6214] <... close resumed>) = 0 [pid 6214] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6212] <... futex resumed>) = 0 [pid 6214] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6212] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6214] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6212] <... futex resumed>) = 0 [pid 6214] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6212] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6214] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6214] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6214] <... futex resumed>) = 0 [pid 6212] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6214] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6212] <... futex resumed>) = 0 [pid 6214] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6212] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6214] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6214] <... futex resumed>) = 0 [pid 6214] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6212] exit_group(0) = ? [pid 6214] <... futex resumed>) = ? [pid 6214] +++ exited with 0 +++ [pid 6212] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6212, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=30 /* 0.30 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6218 ./strace-static-x86_64: Process 6218 attached [pid 6218] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6217] <... write resumed>) = 16777216 [pid 6215] <... close resumed>) = 0 [pid 6218] setpgid(0, 0 [pid 6215] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6218] <... setpgid resumed>) = 0 [pid 6215] <... futex resumed>) = 1 [pid 6213] <... futex resumed>) = 0 [pid 6218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6217] munmap(0x7fb71c400000, 138412032 [pid 6215] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6213] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6218] <... openat resumed>) = 3 [pid 6215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6213] <... futex resumed>) = 0 [pid 6213] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6215] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6218] write(3, "1000", 4 [pid 6215] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6218] <... write resumed>) = 4 [pid 6215] <... futex resumed>) = 1 [pid 6213] <... futex resumed>) = 0 [pid 6218] close(3 [pid 6215] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6213] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6218] <... close resumed>) = 0 [pid 6215] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6213] <... futex resumed>) = 0 executing program [pid 6218] write(1, "executing program\n", 18 [pid 6217] <... munmap resumed>) = 0 [pid 6215] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6213] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6218] <... write resumed>) = 18 [pid 6215] <... futex resumed>) = 0 [pid 6215] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6218] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6218] <... futex resumed>) = 0 [pid 6217] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6213] exit_group(0 [pid 6218] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6217] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6218] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6217] close(3 [pid 6215] <... futex resumed>) = ? [pid 6213] <... exit_group resumed>) = ? [pid 6218] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6215] +++ exited with 0 +++ [pid 6218] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6213] +++ exited with 0 +++ [pid 6218] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6213, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=35 /* 0.35 s */} --- [pid 6218] <... mprotect resumed>) = 0 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6218] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6218] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5868] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6219 attached [pid 6219] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6218] <... clone3 resumed> => {parent_tid=[6219]}, 88) = 6219 [pid 6219] <... rseq resumed>) = 0 [pid 6218] rt_sigprocmask(SIG_SETMASK, [], [pid 6219] set_robust_list(0x7fb72497a9a0, 24 [pid 6218] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6219] <... set_robust_list resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6219] rt_sigprocmask(SIG_SETMASK, [], [pid 6218] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6219] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6218] <... futex resumed>) = 0 [pid 6219] memfd_create("syzkaller", 0 [pid 6218] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6220 attached [pid 6219] <... memfd_create resumed>) = 3 [pid 6220] set_robust_list(0x55556c2036a0, 24 [pid 6219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6220] <... set_robust_list resumed>) = 0 [pid 6219] <... mmap resumed>) = 0x7fb71c400000 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6220 [pid 6220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6220] setpgid(0, 0) = 0 [pid 6220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6220] write(3, "1000", 4) = 4 executing program [pid 6220] close(3) = 0 [pid 6220] write(1, "executing program\n", 18) = 18 [pid 6220] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6220] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6220] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6220] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6220] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6220] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6220] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6221 attached => {parent_tid=[6221]}, 88) = 6221 [pid 6221] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6221] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6221] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6220] rt_sigprocmask(SIG_SETMASK, [], [pid 6221] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6220] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6220] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6221] <... futex resumed>) = 0 [pid 6220] <... futex resumed>) = 1 [pid 6220] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6221] memfd_create("syzkaller", 0) = 3 [pid 6221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6217] <... close resumed>) = 0 [pid 6217] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6216] <... futex resumed>) = 0 [pid 6217] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6216] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6216] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6217] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6217] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6216] <... futex resumed>) = 0 [pid 6217] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6216] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6216] <... futex resumed>) = 0 [pid 6217] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6216] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6217] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6219] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6217] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6216] <... futex resumed>) = 0 [pid 6217] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6216] exit_group(0) = ? [pid 6217] <... futex resumed>) = ? [pid 6217] +++ exited with 0 +++ [pid 6216] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6216, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6222 attached , child_tidptr=0x55556c203690) = 6222 [pid 6222] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6222] setpgid(0, 0) = 0 [pid 6222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6222] write(3, "1000", 4) = 4 [pid 6222] close(3executing program ) = 0 [pid 6222] write(1, "executing program\n", 18) = 18 [pid 6222] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6222] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6222] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6222] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6222] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6222] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6222] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6222] <... clone3 resumed> => {parent_tid=[6223]}, 88) = 6223 ./strace-static-x86_64: Process 6223 attached [pid 6222] rt_sigprocmask(SIG_SETMASK, [], [pid 6223] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6222] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6223] set_robust_list(0x7fb72497a9a0, 24 [pid 6222] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6223] <... set_robust_list resumed>) = 0 [pid 6222] <... futex resumed>) = 0 [pid 6223] rt_sigprocmask(SIG_SETMASK, [], [pid 6222] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6223] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6223] memfd_create("syzkaller", 0) = 3 [pid 6223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6221] <... write resumed>) = 16777216 [pid 6221] munmap(0x7fb71c400000, 138412032 [pid 6223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6221] <... munmap resumed>) = 0 [pid 6219] <... write resumed>) = 16777216 [pid 6221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6221] close(3 [pid 6219] munmap(0x7fb71c400000, 138412032) = 0 [pid 6219] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6219] close(3 [pid 6223] <... write resumed>) = 16777216 [pid 6223] munmap(0x7fb71c400000, 138412032) = 0 [pid 6223] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6221] <... close resumed>) = 0 [pid 6223] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6221] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6223] close(3 [pid 6221] <... futex resumed>) = 1 [pid 6220] <... futex resumed>) = 0 [pid 6221] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6220] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6220] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6221] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6219] <... close resumed>) = 0 [pid 6221] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6221] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6219] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6221] <... futex resumed>) = 1 [pid 6220] <... futex resumed>) = 0 [pid 6221] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6219] <... futex resumed>) = 1 [pid 6218] <... futex resumed>) = 0 [pid 6220] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6219] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6221] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6220] <... futex resumed>) = 0 [pid 6218] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6221] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6221] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6219] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6221] <... futex resumed>) = 0 [pid 6220] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6218] <... futex resumed>) = 0 [pid 6221] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6220] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6219] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6218] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6219] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6220] exit_group(0 [pid 6218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6219] <... futex resumed>) = 0 [pid 6221] <... futex resumed>) = ? [pid 6220] <... exit_group resumed>) = ? [pid 6219] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6218] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6221] +++ exited with 0 +++ [pid 6219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6219] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6218] <... futex resumed>) = 0 [pid 6219] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6218] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6219] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6219] <... futex resumed>) = 0 [pid 6219] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6218] exit_group(0 [pid 6219] <... futex resumed>) = ? [pid 6218] <... exit_group resumed>) = ? [pid 6219] +++ exited with 0 +++ [pid 6220] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6220, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6218] +++ exited with 0 +++ [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6218, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6224 attached [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6224] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6224 [pid 6224] <... set_robust_list resumed>) = 0 [pid 6224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6224] setpgid(0, 0) = 0 [pid 6224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6224] write(3, "1000", 4) = 4 [pid 6224] close(3 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6224] <... close resumed>) = 0 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) executing program [pid 6224] write(1, "executing program\n", 18 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6224] <... write resumed>) = 18 ./strace-static-x86_64: Process 6225 attached [pid 6224] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6225 [pid 6224] <... futex resumed>) = 0 [pid 6224] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6225] set_robust_list(0x55556c2036a0, 24 [pid 6224] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6225] <... set_robust_list resumed>) = 0 [pid 6224] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6225] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6225] <... prctl resumed>) = 0 [pid 6225] setpgid(0, 0 [pid 6224] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6225] <... setpgid resumed>) = 0 [pid 6225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6224] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6225] <... openat resumed>) = 3 [pid 6224] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6225] write(3, "1000", 4 [pid 6224] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6226 attached [pid 6225] <... write resumed>) = 4 [pid 6225] close(3) = 0 executing program [pid 6225] write(1, "executing program\n", 18 [pid 6224] <... clone3 resumed> => {parent_tid=[6226]}, 88) = 6226 [pid 6226] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6225] <... write resumed>) = 18 [pid 6226] <... rseq resumed>) = 0 [pid 6226] set_robust_list(0x7fb72497a9a0, 24 [pid 6225] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6224] rt_sigprocmask(SIG_SETMASK, [], [pid 6226] <... set_robust_list resumed>) = 0 [pid 6226] rt_sigprocmask(SIG_SETMASK, [], [pid 6225] <... futex resumed>) = 0 [pid 6224] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6226] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6225] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6224] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6226] memfd_create("syzkaller", 0 [pid 6225] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6226] <... memfd_create resumed>) = 3 [pid 6225] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6224] <... futex resumed>) = 0 [pid 6226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6225] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6224] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6226] <... mmap resumed>) = 0x7fb71c400000 [pid 6225] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6225] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6225] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6225] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6227]}, 88) = 6227 [pid 6225] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6225] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6225] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6223] <... close resumed>) = 0 ./strace-static-x86_64: Process 6227 attached [pid 6223] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6227] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6223] <... futex resumed>) = 1 [pid 6222] <... futex resumed>) = 0 [pid 6227] <... rseq resumed>) = 0 [pid 6222] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6227] set_robust_list(0x7fb72497a9a0, 24 [pid 6223] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6222] <... futex resumed>) = 0 [pid 6223] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6222] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6227] <... set_robust_list resumed>) = 0 [pid 6223] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6227] rt_sigprocmask(SIG_SETMASK, [], [pid 6223] <... futex resumed>) = 1 [pid 6222] <... futex resumed>) = 0 [pid 6227] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6223] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6222] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6227] memfd_create("syzkaller", 0 [pid 6222] <... futex resumed>) = 0 [pid 6222] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6223] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6227] <... memfd_create resumed>) = 3 [pid 6223] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6222] <... futex resumed>) = 0 [pid 6227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6223] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6222] exit_group(0 [pid 6227] <... mmap resumed>) = 0x7fb71c400000 [pid 6223] <... futex resumed>) = ? [pid 6222] <... exit_group resumed>) = ? [pid 6223] +++ exited with 0 +++ [pid 6222] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6222, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6228 attached , child_tidptr=0x55556c203690) = 6228 [pid 6228] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6228] setpgid(0, 0) = 0 [pid 6228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6228] write(3, "1000", 4) = 4 [pid 6228] close(3) = 0 executing program [pid 6228] write(1, "executing program\n", 18) = 18 [pid 6228] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6226] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6228] <... futex resumed>) = 0 [pid 6228] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6228] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6228] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6228] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6228] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6229 attached [pid 6229] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6228] <... clone3 resumed> => {parent_tid=[6229]}, 88) = 6229 [pid 6228] rt_sigprocmask(SIG_SETMASK, [], [pid 6229] <... rseq resumed>) = 0 [pid 6228] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6229] set_robust_list(0x7fb72497a9a0, 24 [pid 6228] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6229] <... set_robust_list resumed>) = 0 [pid 6228] <... futex resumed>) = 0 [pid 6229] rt_sigprocmask(SIG_SETMASK, [], [pid 6228] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6229] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6229] memfd_create("syzkaller", 0) = 3 [pid 6229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6226] <... write resumed>) = 16777216 [pid 6226] munmap(0x7fb71c400000, 138412032 [pid 6227] <... write resumed>) = 16777216 [pid 6227] munmap(0x7fb71c400000, 138412032 [pid 6226] <... munmap resumed>) = 0 [pid 6226] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6226] close(3 [pid 6227] <... munmap resumed>) = 0 [pid 6227] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6227] close(3 [pid 6229] <... write resumed>) = 16777216 [pid 6229] munmap(0x7fb71c400000, 138412032) = 0 [pid 6229] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6229] close(3 [pid 6227] <... close resumed>) = 0 [pid 6227] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6227] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6225] <... futex resumed>) = 0 [pid 6225] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6225] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6227] <... futex resumed>) = 0 [pid 6227] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6227] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6225] <... futex resumed>) = 0 [pid 6227] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6225] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6227] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6225] <... futex resumed>) = 0 [pid 6227] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6227] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6225] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6227] <... futex resumed>) = 0 [pid 6227] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6225] exit_group(0 [pid 6227] <... futex resumed>) = ? [pid 6225] <... exit_group resumed>) = ? [pid 6227] +++ exited with 0 +++ [pid 6225] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6225, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6230 [pid 6226] <... close resumed>) = 0 ./strace-static-x86_64: Process 6230 attached [pid 6230] set_robust_list(0x55556c2036a0, 24 [pid 6226] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6224] <... futex resumed>) = 0 [pid 6226] <... futex resumed>) = 1 [pid 6224] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6226] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6224] <... futex resumed>) = 0 [pid 6226] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6224] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6226] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6226] <... futex resumed>) = 0 [pid 6224] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6230] <... set_robust_list resumed>) = 0 [pid 6226] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6224] <... futex resumed>) = 0 [pid 6230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6226] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6230] <... prctl resumed>) = 0 [pid 6224] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6230] setpgid(0, 0) = 0 [pid 6226] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6226] <... futex resumed>) = 1 [pid 6224] <... futex resumed>) = 0 [pid 6226] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6230] <... openat resumed>) = 3 [pid 6224] exit_group(0 [pid 6230] write(3, "1000", 4 [pid 6226] <... futex resumed>) = ? [pid 6224] <... exit_group resumed>) = ? [pid 6226] +++ exited with 0 +++ [pid 6230] <... write resumed>) = 4 [pid 6224] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6224, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 6230] close(3) = 0 [pid 6230] write(1, "executing program\n", 18executing program ) = 18 [pid 6230] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6230] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6230] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6230] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6230] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6230] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6231 attached => {parent_tid=[6231]}, 88) = 6231 [pid 6230] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6230] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6231] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6230] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6231] <... rseq resumed>) = 0 [pid 6231] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6231] rt_sigprocmask(SIG_SETMASK, [], [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6231] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6231] memfd_create("syzkaller", 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6231] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 6232 attached [pid 6229] <... close resumed>) = 0 [pid 6232] set_robust_list(0x55556c2036a0, 24 [pid 6231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6229] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6232] <... set_robust_list resumed>) = 0 [pid 6229] <... futex resumed>) = 1 [pid 6228] <... futex resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6232 [pid 6232] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6231] <... mmap resumed>) = 0x7fb71c400000 [pid 6229] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6228] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6232] <... prctl resumed>) = 0 [pid 6229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6228] <... futex resumed>) = 0 [pid 6232] setpgid(0, 0 [pid 6228] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6232] <... setpgid resumed>) = 0 [pid 6232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6229] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6229] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6228] <... futex resumed>) = 0 [pid 6232] write(3, "1000", 4 [pid 6229] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6228] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6232] <... write resumed>) = 4 [pid 6229] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6228] <... futex resumed>) = 0 [pid 6232] close(3 [pid 6229] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6228] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6232] <... close resumed>) = 0 [pid 6229] <... futex resumed>) = 0 executing program [pid 6228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6232] write(1, "executing program\n", 18 [pid 6229] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6228] exit_group(0 [pid 6232] <... write resumed>) = 18 [pid 6229] <... futex resumed>) = ? [pid 6228] <... exit_group resumed>) = ? [pid 6232] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6229] +++ exited with 0 +++ [pid 6228] +++ exited with 0 +++ [pid 6232] <... futex resumed>) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6228, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6232] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6232] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6232] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6232] <... mprotect resumed>) = 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6232] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6233 attached [pid 6232] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6234 attached [pid 6233] set_robust_list(0x55556c2036a0, 24 [pid 6232] <... clone3 resumed> => {parent_tid=[6234]}, 88) = 6234 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6233 [pid 6234] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6232] rt_sigprocmask(SIG_SETMASK, [], [pid 6234] <... rseq resumed>) = 0 [pid 6233] <... set_robust_list resumed>) = 0 [pid 6232] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6234] set_robust_list(0x7fb72497a9a0, 24 [pid 6233] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6232] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6234] <... set_robust_list resumed>) = 0 [pid 6233] <... prctl resumed>) = 0 [pid 6232] <... futex resumed>) = 0 [pid 6234] rt_sigprocmask(SIG_SETMASK, [], [pid 6233] setpgid(0, 0 [pid 6232] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6234] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6233] <... setpgid resumed>) = 0 [pid 6234] memfd_create("syzkaller", 0 [pid 6233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6234] <... memfd_create resumed>) = 3 [pid 6233] <... openat resumed>) = 3 [pid 6234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6233] write(3, "1000", 4 [pid 6231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6233] <... write resumed>) = 4 [pid 6233] close(3) = 0 executing program [pid 6233] write(1, "executing program\n", 18) = 18 [pid 6233] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6233] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6233] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6233] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6233] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6233] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6233] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6235 attached => {parent_tid=[6235]}, 88) = 6235 [pid 6235] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6233] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6235] <... rseq resumed>) = 0 [pid 6233] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6235] set_robust_list(0x7fb72497a9a0, 24 [pid 6233] <... futex resumed>) = 0 [pid 6233] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6235] <... set_robust_list resumed>) = 0 [pid 6235] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6235] memfd_create("syzkaller", 0) = 3 [pid 6235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6234] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6231] <... write resumed>) = 16777216 [pid 6231] munmap(0x7fb71c400000, 138412032) = 0 [pid 6231] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6231] close(3 [pid 6234] <... write resumed>) = 16777216 [pid 6234] munmap(0x7fb71c400000, 138412032) = 0 [pid 6234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6234] close(3 [pid 6235] <... write resumed>) = 16777216 [pid 6235] munmap(0x7fb71c400000, 138412032) = 0 [pid 6235] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6235] close(3 [pid 6231] <... close resumed>) = 0 [pid 6231] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6230] <... futex resumed>) = 0 [pid 6231] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6230] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6231] <... futex resumed>) = 0 [pid 6230] <... futex resumed>) = 1 [pid 6231] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6230] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6231] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6231] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6230] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6231] <... futex resumed>) = 0 [pid 6230] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6231] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6230] <... futex resumed>) = 0 [pid 6231] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6231] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6231] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6230] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6230] exit_group(0 [pid 6231] <... futex resumed>) = ? [pid 6230] <... exit_group resumed>) = ? [pid 6231] +++ exited with 0 +++ [pid 6230] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6230, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6236 ./strace-static-x86_64: Process 6236 attached [pid 6236] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6236] setpgid(0, 0) = 0 [pid 6236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6236] write(3, "1000", 4) = 4 [pid 6236] close(3) = 0 executing program [pid 6236] write(1, "executing program\n", 18) = 18 [pid 6236] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6236] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6236] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6236] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6234] <... close resumed>) = 0 [pid 6236] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6234] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6236] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6234] <... futex resumed>) = 1 [pid 6232] <... futex resumed>) = 0 [pid 6234] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 6237 attached [pid 6236] <... clone3 resumed> => {parent_tid=[6237]}, 88) = 6237 [pid 6232] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6237] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6236] rt_sigprocmask(SIG_SETMASK, [], [pid 6234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6237] <... rseq resumed>) = 0 [pid 6236] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6234] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6232] <... futex resumed>) = 0 [pid 6237] set_robust_list(0x7fb72497a9a0, 24 [pid 6236] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6234] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6232] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6237] <... set_robust_list resumed>) = 0 [pid 6236] <... futex resumed>) = 0 [pid 6235] <... close resumed>) = 0 [pid 6234] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6232] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6237] rt_sigprocmask(SIG_SETMASK, [], [pid 6236] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6234] <... futex resumed>) = 0 [pid 6232] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6237] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6235] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6234] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6232] <... futex resumed>) = 0 [pid 6232] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6234] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6234] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6232] <... futex resumed>) = 0 [pid 6235] <... futex resumed>) = 1 [pid 6233] <... futex resumed>) = 0 [pid 6232] exit_group(0 [pid 6235] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6233] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6232] <... exit_group resumed>) = ? [pid 6233] <... futex resumed>) = 0 [pid 6233] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6237] memfd_create("syzkaller", 0 [pid 6235] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6237] <... memfd_create resumed>) = 3 [pid 6235] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6233] <... futex resumed>) = 0 [pid 6235] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6233] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6233] <... futex resumed>) = 0 [pid 6237] <... mmap resumed>) = 0x7fb71c400000 [pid 6234] +++ exited with 0 +++ [pid 6233] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6232] +++ exited with 0 +++ [pid 6235] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6232, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 6235] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6235] <... futex resumed>) = 1 [pid 6233] <... futex resumed>) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6235] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6233] exit_group(0 [pid 6235] <... futex resumed>) = ? [pid 6233] <... exit_group resumed>) = ? [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6238 attached [pid 6235] +++ exited with 0 +++ [pid 6233] +++ exited with 0 +++ [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6238 [pid 6238] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6233, si_uid=0, si_status=0, si_utime=0, si_stime=38 /* 0.38 s */} --- [pid 6238] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6238] <... prctl resumed>) = 0 [pid 6238] setpgid(0, 0) = 0 [pid 6238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6238] write(3, "1000", 4) = 4 [pid 6238] close(3) = 0 executing program [pid 6238] write(1, "executing program\n", 18) = 18 [pid 6238] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6238] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6238] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5872] <... restart_syscall resumed>) = 0 [pid 6238] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6238] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6238] <... mprotect resumed>) = 0 [pid 6238] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6238] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6238] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6239 attached [pid 6238] <... clone3 resumed> => {parent_tid=[6239]}, 88) = 6239 ./strace-static-x86_64: Process 6240 attached [pid 6239] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6238] rt_sigprocmask(SIG_SETMASK, [], [pid 6239] <... rseq resumed>) = 0 [pid 6238] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6240] set_robust_list(0x55556c2036a0, 24 [pid 6239] set_robust_list(0x7fb72497a9a0, 24 [pid 6238] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6240] <... set_robust_list resumed>) = 0 [pid 6239] <... set_robust_list resumed>) = 0 [pid 6238] <... futex resumed>) = 0 [pid 6240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6239] rt_sigprocmask(SIG_SETMASK, [], [pid 6238] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6240] <... prctl resumed>) = 0 [pid 6239] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6240 [pid 6240] setpgid(0, 0) = 0 [pid 6239] memfd_create("syzkaller", 0 [pid 6240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6240] write(3, "1000", 4 [pid 6239] <... memfd_create resumed>) = 3 [pid 6240] <... write resumed>) = 4 [pid 6239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6240] close(3 [pid 6239] <... mmap resumed>) = 0x7fb71c400000 [pid 6240] <... close resumed>) = 0 [pid 6240] write(1, "executing program\n", 18executing program ) = 18 [pid 6240] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6240] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6240] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6240] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6240] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6240] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6240] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6241 attached => {parent_tid=[6241]}, 88) = 6241 [pid 6240] rt_sigprocmask(SIG_SETMASK, [], [pid 6237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6241] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6240] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6240] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6240] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6241] <... rseq resumed>) = 0 [pid 6241] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6241] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6241] memfd_create("syzkaller", 0) = 3 [pid 6241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6237] <... write resumed>) = 16777216 [pid 6237] munmap(0x7fb71c400000, 138412032) = 0 [pid 6237] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6237] close(3 [pid 6241] <... write resumed>) = 16777216 [pid 6241] munmap(0x7fb71c400000, 138412032 [pid 6239] <... write resumed>) = 16777216 [pid 6241] <... munmap resumed>) = 0 [pid 6241] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6239] munmap(0x7fb71c400000, 138412032 [pid 6241] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6241] close(3 [pid 6237] <... close resumed>) = 0 [pid 6239] <... munmap resumed>) = 0 [pid 6239] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6237] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6239] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6239] close(3 [pid 6237] <... futex resumed>) = 1 [pid 6236] <... futex resumed>) = 0 [pid 6236] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6236] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6237] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6237] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6237] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6236] <... futex resumed>) = 0 [pid 6236] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6237] <... futex resumed>) = 0 [pid 6236] <... futex resumed>) = 1 [pid 6237] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6236] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6237] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6237] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6237] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6236] <... futex resumed>) = 0 [pid 6236] exit_group(0 [pid 6237] <... futex resumed>) = ? [pid 6236] <... exit_group resumed>) = ? [pid 6237] +++ exited with 0 +++ [pid 6236] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6236, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6242 attached [pid 6242] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6242] setpgid(0, 0) = 0 [pid 6242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6242 [pid 6242] <... openat resumed>) = 3 [pid 6242] write(3, "1000", 4) = 4 [pid 6242] close(3) = 0 executing program [pid 6242] write(1, "executing program\n", 18) = 18 [pid 6242] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6242] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6242] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6242] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6242] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6242] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6243 attached => {parent_tid=[6243]}, 88) = 6243 [pid 6243] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6242] rt_sigprocmask(SIG_SETMASK, [], [pid 6243] <... rseq resumed>) = 0 [pid 6242] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6243] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6243] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6243] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6242] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6243] <... futex resumed>) = 0 [pid 6242] <... futex resumed>) = 1 [pid 6242] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6243] memfd_create("syzkaller", 0) = 3 [pid 6243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6239] <... close resumed>) = 0 [pid 6239] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6241] <... close resumed>) = 0 [pid 6239] <... futex resumed>) = 1 [pid 6238] <... futex resumed>) = 0 [pid 6241] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6239] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6238] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6241] <... futex resumed>) = 1 [pid 6240] <... futex resumed>) = 0 [pid 6239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6238] <... futex resumed>) = 0 [pid 6241] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6240] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6239] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6238] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6241] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6240] <... futex resumed>) = 0 [pid 6241] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6240] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6239] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6241] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6239] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6238] <... futex resumed>) = 0 [pid 6241] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6239] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6238] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6241] <... futex resumed>) = 1 [pid 6240] <... futex resumed>) = 0 [pid 6239] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6238] <... futex resumed>) = 0 [pid 6241] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6240] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6239] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6238] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6241] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6240] <... futex resumed>) = 0 [pid 6239] <... futex resumed>) = 0 [pid 6240] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6241] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6239] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6241] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6238] exit_group(0 [pid 6241] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6240] <... futex resumed>) = 0 [pid 6239] <... futex resumed>) = ? [pid 6238] <... exit_group resumed>) = ? [pid 6241] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6240] exit_group(0 [pid 6239] +++ exited with 0 +++ [pid 6238] +++ exited with 0 +++ [pid 6240] <... exit_group resumed>) = ? [pid 6241] <... futex resumed>) = ? [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6238, si_uid=0, si_status=0, si_utime=0, si_stime=39 /* 0.39 s */} --- [pid 6241] +++ exited with 0 +++ [pid 6240] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6240, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6244 attached ./strace-static-x86_64: Process 6245 attached [pid 6244] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6244 [pid 6244] <... prctl resumed>) = 0 [pid 6244] setpgid(0, 0 [pid 6245] set_robust_list(0x55556c2036a0, 24 [pid 6243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6245 [pid 6245] <... set_robust_list resumed>) = 0 [pid 6244] <... setpgid resumed>) = 0 [pid 6244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6244] write(3, "1000", 4 [pid 6245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6244] <... write resumed>) = 4 [pid 6245] setpgid(0, 0 [pid 6244] close(3 [pid 6245] <... setpgid resumed>) = 0 [pid 6244] <... close resumed>) = 0 [pid 6245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6244] write(1, "executing program\n", 18executing program ) = 18 [pid 6244] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6245] <... openat resumed>) = 3 [pid 6244] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6244] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6245] write(3, "1000", 4 [pid 6244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6245] <... write resumed>) = 4 [pid 6245] close(3 [pid 6244] <... mmap resumed>) = 0x7fb72495a000 executing program [pid 6245] <... close resumed>) = 0 [pid 6245] write(1, "executing program\n", 18 [pid 6244] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6245] <... write resumed>) = 18 [pid 6244] <... mprotect resumed>) = 0 [pid 6245] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6244] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6245] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6245] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6244] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6245] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6244] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6246 attached [pid 6245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6244] <... clone3 resumed> => {parent_tid=[6246]}, 88) = 6246 [pid 6245] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6244] rt_sigprocmask(SIG_SETMASK, [], [pid 6245] <... mprotect resumed>) = 0 [pid 6246] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6244] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6246] <... rseq resumed>) = 0 [pid 6245] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6244] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6246] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6244] <... futex resumed>) = 0 [pid 6246] rt_sigprocmask(SIG_SETMASK, [], [pid 6245] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6244] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6246] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6245] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6246] memfd_create("syzkaller", 0) = 3 [pid 6245] <... clone3 resumed> => {parent_tid=[6247]}, 88) = 6247 ./strace-static-x86_64: Process 6247 attached [pid 6246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6245] rt_sigprocmask(SIG_SETMASK, [], [pid 6247] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6246] <... mmap resumed>) = 0x7fb71c400000 [pid 6245] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6245] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6247] <... rseq resumed>) = 0 [pid 6245] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6247] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6247] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6247] memfd_create("syzkaller", 0) = 3 [pid 6247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6243] <... write resumed>) = 16777216 [pid 6246] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6243] munmap(0x7fb71c400000, 138412032) = 0 [pid 6243] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6243] close(3 [pid 6247] <... write resumed>) = 16777216 [pid 6247] munmap(0x7fb71c400000, 138412032 [pid 6243] <... close resumed>) = 0 [pid 6247] <... munmap resumed>) = 0 [pid 6247] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6243] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6247] close(3 [pid 6243] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6242] <... futex resumed>) = 0 [pid 6243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6242] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6243] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6242] <... futex resumed>) = 0 [pid 6243] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6242] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6243] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6242] <... futex resumed>) = 0 [pid 6243] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6242] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6242] <... futex resumed>) = 0 [pid 6243] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6242] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6243] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6243] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6242] <... futex resumed>) = 0 [pid 6243] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6242] exit_group(0 [pid 6243] <... futex resumed>) = ? [pid 6242] <... exit_group resumed>) = ? [pid 6243] +++ exited with 0 +++ [pid 6242] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6242, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6248 attached , child_tidptr=0x55556c203690) = 6248 [pid 6246] <... write resumed>) = 16777216 [pid 6248] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6246] munmap(0x7fb71c400000, 138412032 [pid 6248] <... prctl resumed>) = 0 [pid 6248] setpgid(0, 0) = 0 [pid 6248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6248] write(3, "1000", 4) = 4 [pid 6248] close(3) = 0 [pid 6246] <... munmap resumed>) = 0 [pid 6248] write(1, "executing program\n", 18executing program ) = 18 [pid 6246] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6248] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6246] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6248] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6246] close(3 [pid 6248] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6248] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6248] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6248] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6249 attached => {parent_tid=[6249]}, 88) = 6249 [pid 6248] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6248] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6248] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6249] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6249] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6249] memfd_create("syzkaller", 0) = 3 [pid 6249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6247] <... close resumed>) = 0 [pid 6247] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6245] <... futex resumed>) = 0 [pid 6245] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6247] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6245] <... futex resumed>) = 0 [pid 6247] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6245] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6247] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6245] <... futex resumed>) = 0 [pid 6247] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULLexecuting program [pid 6245] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6245] <... futex resumed>) = 0 [pid 6245] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6247] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6247] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6245] <... futex resumed>) = 0 [pid 6247] <... futex resumed>) = 1 [pid 6245] exit_group(0 [pid 6247] ???( [pid 6245] <... exit_group resumed>) = ? [pid 6247] <... ??? resumed>) = ? [pid 6247] +++ exited with 0 +++ [pid 6245] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6245, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6250 ./strace-static-x86_64: Process 6250 attached [pid 6250] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6250] setpgid(0, 0) = 0 [pid 6250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6250] write(3, "1000", 4) = 4 [pid 6250] close(3) = 0 [pid 6250] write(1, "executing program\n", 18) = 18 [pid 6250] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6250] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6246] <... close resumed>) = 0 [pid 6246] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6244] <... futex resumed>) = 0 [pid 6250] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6246] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6244] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6250] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6246] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6244] <... futex resumed>) = 0 [pid 6250] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6246] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6244] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6250] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6246] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6246] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6250] <... mmap resumed>) = 0x7fb72495a000 [pid 6250] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6246] <... futex resumed>) = 1 [pid 6244] <... futex resumed>) = 0 [pid 6250] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6246] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6250] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6244] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6246] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6244] <... futex resumed>) = 0 [pid 6246] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6244] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6246] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 6251 attached [pid 6250] <... clone3 resumed> => {parent_tid=[6251]}, 88) = 6251 [pid 6246] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6251] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6250] rt_sigprocmask(SIG_SETMASK, [], [pid 6251] <... rseq resumed>) = 0 [pid 6250] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6251] set_robust_list(0x7fb72497a9a0, 24 [pid 6250] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6251] <... set_robust_list resumed>) = 0 [pid 6250] <... futex resumed>) = 0 [pid 6251] rt_sigprocmask(SIG_SETMASK, [], [pid 6250] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6251] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6251] memfd_create("syzkaller", 0) = 3 [pid 6246] <... futex resumed>) = 1 [pid 6244] <... futex resumed>) = 0 [pid 6251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6246] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6244] exit_group(0 [pid 6251] <... mmap resumed>) = 0x7fb71c400000 [pid 6246] <... futex resumed>) = ? [pid 6244] <... exit_group resumed>) = ? [pid 6246] +++ exited with 0 +++ [pid 6244] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6244, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6252 attached , child_tidptr=0x55556c203690) = 6252 [pid 6252] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6252] setpgid(0, 0) = 0 [pid 6252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6252] write(3, "1000", 4) = 4 executing program [pid 6252] close(3) = 0 [pid 6252] write(1, "executing program\n", 18) = 18 [pid 6252] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6252] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6252] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6252] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6252] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6252] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6252] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6253 attached [pid 6253] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6252] <... clone3 resumed> => {parent_tid=[6253]}, 88) = 6253 [pid 6253] <... rseq resumed>) = 0 [pid 6252] rt_sigprocmask(SIG_SETMASK, [], [pid 6253] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6252] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6253] rt_sigprocmask(SIG_SETMASK, [], [pid 6252] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6253] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6252] <... futex resumed>) = 0 [pid 6252] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6253] memfd_create("syzkaller", 0) = 3 [pid 6253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6251] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6249] <... write resumed>) = 16777216 [pid 6249] munmap(0x7fb71c400000, 138412032) = 0 [pid 6249] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6249] close(3 [pid 6251] <... write resumed>) = 16777216 [pid 6251] munmap(0x7fb71c400000, 138412032) = 0 [pid 6253] <... write resumed>) = 16777216 [pid 6251] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6249] <... close resumed>) = 0 [pid 6253] munmap(0x7fb71c400000, 138412032 [pid 6251] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6249] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6248] <... futex resumed>) = 0 [pid 6251] close(3 [pid 6249] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6248] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6249] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6248] <... futex resumed>) = 0 [pid 6249] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6248] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6249] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6253] <... munmap resumed>) = 0 [pid 6249] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6249] <... futex resumed>) = 1 [pid 6248] <... futex resumed>) = 0 [pid 6248] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6248] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6253] close(3 [pid 6249] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6249] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6248] <... futex resumed>) = 0 [pid 6249] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6248] exit_group(0 [pid 6249] <... futex resumed>) = ? [pid 6248] <... exit_group resumed>) = ? [pid 6249] +++ exited with 0 +++ [pid 6248] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6248, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6254 attached , child_tidptr=0x55556c203690) = 6254 [pid 6254] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6254] setpgid(0, 0) = 0 [pid 6254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6254] write(3, "1000", 4) = 4 executing program [pid 6254] close(3) = 0 [pid 6254] write(1, "executing program\n", 18) = 18 [pid 6254] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6254] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6254] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6254] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6254] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6254] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6254] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6255 attached => {parent_tid=[6255]}, 88) = 6255 [pid 6255] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6255] set_robust_list(0x7fb72497a9a0, 24 [pid 6254] rt_sigprocmask(SIG_SETMASK, [], [pid 6255] <... set_robust_list resumed>) = 0 [pid 6254] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6255] rt_sigprocmask(SIG_SETMASK, [], [pid 6254] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6254] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6255] memfd_create("syzkaller", 0) = 3 [pid 6255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6251] <... close resumed>) = 0 [pid 6251] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6251] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6250] <... futex resumed>) = 0 [pid 6250] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6251] <... futex resumed>) = 0 [pid 6250] <... futex resumed>) = 1 [pid 6251] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6250] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6251] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6251] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6250] <... futex resumed>) = 0 [pid 6251] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6250] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6251] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6250] <... futex resumed>) = 0 [pid 6251] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6250] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6251] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6251] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6250] <... futex resumed>) = 0 [pid 6251] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6250] exit_group(0 [pid 6251] <... futex resumed>) = ? [pid 6250] <... exit_group resumed>) = ? [pid 6251] +++ exited with 0 +++ [pid 6250] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6250, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6256 attached , child_tidptr=0x55556c203690) = 6256 [pid 6256] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6253] <... close resumed>) = 0 [pid 6256] setpgid(0, 0) = 0 [pid 6256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6253] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6252] <... futex resumed>) = 0 [pid 6256] write(3, "1000", 4 [pid 6255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6253] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6252] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6256] <... write resumed>) = 4 [pid 6253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6252] <... futex resumed>) = 0 [pid 6256] close(3 [pid 6253] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6252] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6253] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6253] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6252] <... futex resumed>) = 0 [pid 6256] <... close resumed>) = 0 [pid 6253] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6252] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6256] write(1, "executing program\n", 18 [pid 6252] <... futex resumed>) = 0 executing program [pid 6256] <... write resumed>) = 18 [pid 6256] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6253] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6252] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6256] <... futex resumed>) = 0 [pid 6253] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6252] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6256] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6253] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6256] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6252] exit_group(0 [pid 6256] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6253] <... futex resumed>) = ? [pid 6252] <... exit_group resumed>) = ? [pid 6256] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6253] +++ exited with 0 +++ [pid 6252] +++ exited with 0 +++ [pid 6256] <... mmap resumed>) = 0x7fb72495a000 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6252, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 6256] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6256] <... mprotect resumed>) = 0 [pid 6256] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6256] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6257 attached [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6256] <... clone3 resumed> => {parent_tid=[6257]}, 88) = 6257 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6256] rt_sigprocmask(SIG_SETMASK, [], [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6258 attached [pid 6257] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6256] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6257] <... rseq resumed>) = 0 [pid 6256] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6258] set_robust_list(0x55556c2036a0, 24 [pid 6257] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6256] <... futex resumed>) = 0 [pid 6256] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6258 [pid 6258] <... set_robust_list resumed>) = 0 [pid 6257] rt_sigprocmask(SIG_SETMASK, [], [pid 6258] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6257] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6258] <... prctl resumed>) = 0 [pid 6257] memfd_create("syzkaller", 0 [pid 6258] setpgid(0, 0) = 0 [pid 6258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6257] <... memfd_create resumed>) = 3 [pid 6257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6258] <... openat resumed>) = 3 [pid 6257] <... mmap resumed>) = 0x7fb71c400000 [pid 6258] write(3, "1000", 4) = 4 executing program [pid 6258] close(3) = 0 [pid 6258] write(1, "executing program\n", 18) = 18 [pid 6258] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6258] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6258] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6258] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6258] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6258] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6258] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6259 attached => {parent_tid=[6259]}, 88) = 6259 [pid 6258] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6258] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6258] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6259] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6259] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6259] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6259] memfd_create("syzkaller", 0) = 3 [pid 6259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6257] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6255] <... write resumed>) = 16777216 [pid 6255] munmap(0x7fb71c400000, 138412032) = 0 [pid 6255] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6255] close(3 [pid 6259] <... write resumed>) = 16777216 [pid 6259] munmap(0x7fb71c400000, 138412032) = 0 [pid 6259] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6259] close(3 [pid 6257] <... write resumed>) = 16777216 [pid 6257] munmap(0x7fb71c400000, 138412032 [pid 6255] <... close resumed>) = 0 [pid 6257] <... munmap resumed>) = 0 [pid 6257] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6255] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6257] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6255] <... futex resumed>) = 1 [pid 6254] <... futex resumed>) = 0 [pid 6254] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6255] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6254] <... futex resumed>) = 0 [pid 6257] close(3 [pid 6255] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6254] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6255] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6254] <... futex resumed>) = 0 [pid 6255] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6254] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6255] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6254] <... futex resumed>) = 0 [pid 6255] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6254] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6255] <... futex resumed>) = 0 [pid 6254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6255] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6254] exit_group(0 [pid 6255] <... futex resumed>) = ? [pid 6254] <... exit_group resumed>) = ? [pid 6255] +++ exited with 0 +++ [pid 6254] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6254, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6260 attached , child_tidptr=0x55556c203690) = 6260 [pid 6260] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6260] setpgid(0, 0) = 0 [pid 6260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6260] write(3, "1000", 4) = 4 [pid 6260] close(3executing program ) = 0 [pid 6260] write(1, "executing program\n", 18) = 18 [pid 6260] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6260] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6260] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6260] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6260] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6260] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6260] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6261 attached [pid 6261] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6260] <... clone3 resumed> => {parent_tid=[6261]}, 88) = 6261 [pid 6261] <... rseq resumed>) = 0 [pid 6260] rt_sigprocmask(SIG_SETMASK, [], [pid 6261] set_robust_list(0x7fb72497a9a0, 24 [pid 6260] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6261] <... set_robust_list resumed>) = 0 [pid 6260] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6261] rt_sigprocmask(SIG_SETMASK, [], [pid 6260] <... futex resumed>) = 0 [pid 6261] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6260] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6261] memfd_create("syzkaller", 0) = 3 [pid 6261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6259] <... close resumed>) = 0 [pid 6259] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6258] <... futex resumed>) = 0 [pid 6259] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6258] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6259] <... futex resumed>) = 0 [pid 6258] <... futex resumed>) = 1 [pid 6259] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6258] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6259] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6259] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6259] <... futex resumed>) = 0 [pid 6258] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6259] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6258] <... futex resumed>) = 0 [pid 6259] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6258] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6259] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6259] <... futex resumed>) = 0 [pid 6258] exit_group(0) = ? [pid 6259] +++ exited with 0 +++ [pid 6258] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6258, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6262 attached [pid 6262] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6262 [pid 6262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6262] setpgid(0, 0) = 0 [pid 6262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6262] write(3, "1000", 4) = 4 [pid 6262] close(3) = 0 [pid 6262] write(1, "executing program\n", 18executing program ) = 18 [pid 6262] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6262] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6262] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6262] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6262] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6262] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6263 attached [pid 6263] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6262] <... clone3 resumed> => {parent_tid=[6263]}, 88) = 6263 [pid 6263] <... rseq resumed>) = 0 [pid 6262] rt_sigprocmask(SIG_SETMASK, [], [pid 6263] set_robust_list(0x7fb72497a9a0, 24 [pid 6262] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6263] <... set_robust_list resumed>) = 0 [pid 6262] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6263] rt_sigprocmask(SIG_SETMASK, [], [pid 6262] <... futex resumed>) = 0 [pid 6263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6263] memfd_create("syzkaller", 0 [pid 6262] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6263] <... memfd_create resumed>) = 3 [pid 6263] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6257] <... close resumed>) = 0 [pid 6257] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6256] <... futex resumed>) = 0 [pid 6257] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6256] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6256] <... futex resumed>) = 0 [pid 6257] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6256] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6257] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6257] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6256] <... futex resumed>) = 0 [pid 6257] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6256] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6256] <... futex resumed>) = 0 [pid 6257] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6256] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6257] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6257] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6256] <... futex resumed>) = 0 [pid 6257] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6256] exit_group(0) = ? [pid 6257] <... futex resumed>) = ? [pid 6257] +++ exited with 0 +++ [pid 6256] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6256, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6264 attached , child_tidptr=0x55556c203690) = 6264 [pid 6264] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6264] setpgid(0, 0) = 0 [pid 6264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6264] write(3, "1000", 4) = 4 [pid 6264] close(3) = 0 executing program [pid 6264] write(1, "executing program\n", 18) = 18 [pid 6264] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6264] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6264] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6264] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6264] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6264] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6264] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6265 attached => {parent_tid=[6265]}, 88) = 6265 [pid 6264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6264] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6265] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6264] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6265] <... rseq resumed>) = 0 [pid 6265] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6265] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6265] memfd_create("syzkaller", 0) = 3 [pid 6265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6263] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6265] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6261] <... write resumed>) = 16777216 [pid 6261] munmap(0x7fb71c400000, 138412032) = 0 [pid 6261] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6261] close(3 [pid 6263] <... write resumed>) = 16777216 [pid 6263] munmap(0x7fb71c400000, 138412032) = 0 [pid 6263] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6263] close(3 [pid 6265] <... write resumed>) = 16777216 [pid 6265] munmap(0x7fb71c400000, 138412032 [pid 6261] <... close resumed>) = 0 [pid 6261] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6261] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6260] <... futex resumed>) = 0 [pid 6260] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6261] <... futex resumed>) = 0 [pid 6260] <... futex resumed>) = 1 [pid 6260] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6261] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6265] <... munmap resumed>) = 0 [pid 6261] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6265] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6261] <... futex resumed>) = 1 [pid 6260] <... futex resumed>) = 0 [pid 6265] close(3 [pid 6261] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6260] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6260] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6261] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6261] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6261] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6260] <... futex resumed>) = 0 [pid 6260] exit_group(0) = ? [pid 6261] <... futex resumed>) = ? [pid 6261] +++ exited with 0 +++ [pid 6260] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6260, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6266 attached , child_tidptr=0x55556c203690) = 6266 [pid 6266] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6266] setpgid(0, 0) = 0 [pid 6266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6266] write(3, "1000", 4executing program ) = 4 [pid 6266] close(3) = 0 [pid 6266] write(1, "executing program\n", 18) = 18 [pid 6266] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6266] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6266] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6266] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6266] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6266] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6267 attached => {parent_tid=[6267]}, 88) = 6267 [pid 6267] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6266] rt_sigprocmask(SIG_SETMASK, [], [pid 6267] <... rseq resumed>) = 0 [pid 6266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6267] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6267] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6267] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6266] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6267] <... futex resumed>) = 0 [pid 6266] <... futex resumed>) = 1 [pid 6267] memfd_create("syzkaller", 0 [pid 6266] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6267] <... memfd_create resumed>) = 3 [pid 6267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6263] <... close resumed>) = 0 [pid 6263] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6262] <... futex resumed>) = 0 [pid 6263] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6262] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6262] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6263] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6263] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6263] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6263] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6262] <... futex resumed>) = 0 [pid 6262] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6263] <... futex resumed>) = 0 [pid 6262] <... futex resumed>) = 1 [pid 6262] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6263] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6263] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6262] <... futex resumed>) = 0 [pid 6263] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6262] exit_group(0 [pid 6263] <... futex resumed>) = ? [pid 6262] <... exit_group resumed>) = ? [pid 6263] +++ exited with 0 +++ [pid 6262] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6262, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6268 attached , child_tidptr=0x55556c203690) = 6268 [pid 6268] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6268] setpgid(0, 0) = 0 [pid 6268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6268] write(3, "1000", 4) = 4 executing program [pid 6268] close(3) = 0 [pid 6268] write(1, "executing program\n", 18) = 18 [pid 6268] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6268] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6268] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6268] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6268] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6268] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6268] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6269]}, 88) = 6269 [pid 6268] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6268] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6268] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6269 attached [pid 6269] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6269] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6269] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6269] memfd_create("syzkaller", 0) = 3 [pid 6269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6265] <... close resumed>) = 0 [pid 6265] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6264] <... futex resumed>) = 0 [pid 6264] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6264] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6265] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6265] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6264] <... futex resumed>) = 0 [pid 6265] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6264] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6265] <... futex resumed>) = 0 [pid 6264] <... futex resumed>) = 1 [pid 6265] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6264] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6265] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6265] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6264] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6265] <... futex resumed>) = 0 [pid 6265] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6264] exit_group(0) = ? [pid 6265] <... futex resumed>) = ? [pid 6265] +++ exited with 0 +++ [pid 6264] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6264, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=40 /* 0.40 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6270 ./strace-static-x86_64: Process 6270 attached [pid 6270] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6270] setpgid(0, 0) = 0 [pid 6270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6270] write(3, "1000", 4) = 4 [pid 6270] close(3) = 0 [pid 6270] write(1, "executing program\n", 18) = 18 [pid 6270] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6270] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6270] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6270] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6270] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6270] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6270] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6271 attached => {parent_tid=[6271]}, 88) = 6271 [pid 6270] rt_sigprocmask(SIG_SETMASK, [], [pid 6271] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6271] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6271] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6271] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6270] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6270] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6271] <... futex resumed>) = 0 [pid 6270] <... futex resumed>) = 1 [pid 6271] memfd_create("syzkaller", 0 [pid 6270] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6271] <... memfd_create resumed>) = 3 [pid 6271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6269] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6267] <... write resumed>) = 16777216 [pid 6267] munmap(0x7fb71c400000, 138412032) = 0 [pid 6267] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6267] close(3 [pid 6271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 6271] munmap(0x7fb71c400000, 138412032 [pid 6269] <... write resumed>) = 16777216 [pid 6269] munmap(0x7fb71c400000, 138412032 [pid 6271] <... munmap resumed>) = 0 [pid 6269] <... munmap resumed>) = 0 [pid 6271] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6269] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6271] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6267] <... close resumed>) = 0 [pid 6271] close(3 [pid 6269] close(3 [pid 6267] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6266] <... futex resumed>) = 0 [pid 6266] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6267] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6266] <... futex resumed>) = 0 [pid 6267] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6266] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6267] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6266] <... futex resumed>) = 0 [pid 6267] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6266] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6266] <... futex resumed>) = 0 [pid 6267] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6266] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6267] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6267] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6266] <... futex resumed>) = 0 [pid 6267] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6266] exit_group(0 [pid 6267] <... futex resumed>) = ? [pid 6266] <... exit_group resumed>) = ? [pid 6267] +++ exited with 0 +++ [pid 6266] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6266, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6272 attached [pid 6272] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6272 [pid 6272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6272] setpgid(0, 0) = 0 [pid 6272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6272] write(3, "1000", 4) = 4 [pid 6272] close(3executing program ) = 0 [pid 6272] write(1, "executing program\n", 18) = 18 [pid 6272] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6272] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6272] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6272] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6272] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6272] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6273 attached [pid 6273] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6272] <... clone3 resumed> => {parent_tid=[6273]}, 88) = 6273 [pid 6273] <... rseq resumed>) = 0 [pid 6272] rt_sigprocmask(SIG_SETMASK, [], [pid 6273] set_robust_list(0x7fb72497a9a0, 24 [pid 6272] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6273] <... set_robust_list resumed>) = 0 [pid 6272] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6273] rt_sigprocmask(SIG_SETMASK, [], [pid 6272] <... futex resumed>) = 0 [pid 6273] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6272] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6273] memfd_create("syzkaller", 0) = 3 [pid 6273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6271] <... close resumed>) = 0 [pid 6271] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6270] <... futex resumed>) = 0 [pid 6271] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6270] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6269] <... close resumed>) = 0 [pid 6271] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6270] <... futex resumed>) = 0 [pid 6269] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6271] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6270] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6271] <... futex resumed>) = 0 [pid 6270] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6271] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6270] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6271] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6270] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6271] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6270] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6271] <... futex resumed>) = 0 [pid 6270] exit_group(0) = ? [pid 6269] <... futex resumed>) = 1 [pid 6268] <... futex resumed>) = 0 [pid 6269] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6268] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6268] <... futex resumed>) = 0 [pid 6269] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6268] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6269] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6269] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6268] <... futex resumed>) = 0 [pid 6269] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6268] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6268] <... futex resumed>) = 0 [pid 6269] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6268] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6269] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6269] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6268] <... futex resumed>) = 0 [pid 6269] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6271] +++ exited with 0 +++ [pid 6270] +++ exited with 0 +++ [pid 6268] exit_group(0 [pid 6269] <... futex resumed>) = ? [pid 6268] <... exit_group resumed>) = ? [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6270, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 6269] +++ exited with 0 +++ [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6268] +++ exited with 0 +++ [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6268, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=39 /* 0.39 s */} --- [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 6274 attached ) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6275 attached [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6274 [pid 6274] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6274] setpgid(0, 0) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6275 [pid 6275] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6275] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6274] <... openat resumed>) = 3 [pid 6275] <... prctl resumed>) = 0 [pid 6274] write(3, "1000", 4 [pid 6275] setpgid(0, 0 [pid 6274] <... write resumed>) = 4 [pid 6275] <... setpgid resumed>) = 0 [pid 6274] close(3 [pid 6275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6274] <... close resumed>) = 0 executing program [pid 6274] write(1, "executing program\n", 18 [pid 6275] <... openat resumed>) = 3 [pid 6274] <... write resumed>) = 18 [pid 6275] write(3, "1000", 4) = 4 [pid 6274] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6275] close(3 [pid 6274] <... futex resumed>) = 0 executing program [pid 6275] <... close resumed>) = 0 [pid 6274] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6275] write(1, "executing program\n", 18) = 18 [pid 6274] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6275] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6274] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6275] <... futex resumed>) = 0 [pid 6274] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6275] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6275] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6274] <... mmap resumed>) = 0x7fb72495a000 [pid 6275] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6274] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6275] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6274] <... mprotect resumed>) = 0 [pid 6275] <... mmap resumed>) = 0x7fb72495a000 [pid 6275] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6274] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6275] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6274] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6275] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6274] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6277 attached [pid 6277] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6277] set_robust_list(0x7fb72497a9a0, 24 [pid 6274] <... clone3 resumed> => {parent_tid=[6277]}, 88) = 6277 [pid 6277] <... set_robust_list resumed>) = 0 [pid 6277] rt_sigprocmask(SIG_SETMASK, [], [pid 6274] rt_sigprocmask(SIG_SETMASK, [], [pid 6277] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6277] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6274] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6274] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6276 attached [pid 6277] <... futex resumed>) = 0 [pid 6275] <... clone3 resumed> => {parent_tid=[6276]}, 88) = 6276 [pid 6274] <... futex resumed>) = 1 [pid 6276] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6275] rt_sigprocmask(SIG_SETMASK, [], [pid 6277] memfd_create("syzkaller", 0 [pid 6276] <... rseq resumed>) = 0 [pid 6275] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6274] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6276] set_robust_list(0x7fb72497a9a0, 24 [pid 6275] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6276] <... set_robust_list resumed>) = 0 [pid 6275] <... futex resumed>) = 0 [pid 6277] <... memfd_create resumed>) = 3 [pid 6276] rt_sigprocmask(SIG_SETMASK, [], [pid 6275] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6277] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6276] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6277] <... mmap resumed>) = 0x7fb71c400000 [pid 6276] memfd_create("syzkaller", 0) = 3 [pid 6276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6277] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6276] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6273] <... write resumed>) = 16777216 [pid 6273] munmap(0x7fb71c400000, 138412032) = 0 [pid 6273] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6273] close(3 [pid 6277] <... write resumed>) = 16777216 [pid 6277] munmap(0x7fb71c400000, 138412032) = 0 [pid 6277] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6277] close(3 [pid 6276] <... write resumed>) = 16777216 [pid 6276] munmap(0x7fb71c400000, 138412032 [pid 6273] <... close resumed>) = 0 [pid 6273] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6272] <... futex resumed>) = 0 [pid 6273] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6272] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6273] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6272] <... futex resumed>) = 0 [pid 6273] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6272] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6273] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6272] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6273] <... futex resumed>) = 0 [pid 6272] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6273] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6272] <... futex resumed>) = 0 [pid 6273] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6272] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6273] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6272] <... futex resumed>) = 0 [pid 6273] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6272] exit_group(0 [pid 6273] <... futex resumed>) = ? [pid 6272] <... exit_group resumed>) = ? [pid 6273] +++ exited with 0 +++ [pid 6272] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6272, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=29 /* 0.29 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6276] <... munmap resumed>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6276] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6276] close(3 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6278 attached , child_tidptr=0x55556c203690) = 6278 [pid 6277] <... close resumed>) = 0 [pid 6278] set_robust_list(0x55556c2036a0, 24 [pid 6277] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6278] <... set_robust_list resumed>) = 0 [pid 6277] <... futex resumed>) = 1 [pid 6274] <... futex resumed>) = 0 [pid 6278] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6277] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6274] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6278] <... prctl resumed>) = 0 [pid 6277] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6278] setpgid(0, 0 [pid 6277] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6274] <... futex resumed>) = 0 [pid 6278] <... setpgid resumed>) = 0 [pid 6277] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6274] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6277] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6278] <... openat resumed>) = 3 [pid 6277] <... futex resumed>) = 1 [pid 6274] <... futex resumed>) = 0 [pid 6278] write(3, "1000", 4 [pid 6277] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6274] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6278] <... write resumed>) = 4 [pid 6277] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6274] <... futex resumed>) = 0 [pid 6278] close(3 [pid 6277] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6274] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6278] <... close resumed>) = 0 [pid 6277] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6278] write(1, "executing program\n", 18executing program [pid 6277] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6278] <... write resumed>) = 18 [pid 6277] <... futex resumed>) = 1 [pid 6274] <... futex resumed>) = 0 [pid 6278] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6277] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6274] exit_group(0 [pid 6277] <... futex resumed>) = ? [pid 6274] <... exit_group resumed>) = ? [pid 6278] <... futex resumed>) = 0 [pid 6277] +++ exited with 0 +++ [pid 6274] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6274, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 6278] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6278] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6278] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6278] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6278] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6278] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6278] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 6279 attached [pid 6278] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6280 attached [pid 6280] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6279] set_robust_list(0x55556c2036a0, 24 [pid 6280] <... rseq resumed>) = 0 [pid 6279] <... set_robust_list resumed>) = 0 [pid 6280] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6279] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6278] <... clone3 resumed> => {parent_tid=[6280]}, 88) = 6280 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6279 [pid 6280] rt_sigprocmask(SIG_SETMASK, [], [pid 6278] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6278] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6278] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6280] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6279] <... prctl resumed>) = 0 [pid 6279] setpgid(0, 0 [pid 6280] memfd_create("syzkaller", 0) = 3 [pid 6280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6279] <... setpgid resumed>) = 0 [pid 6280] <... mmap resumed>) = 0x7fb71c400000 [pid 6279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6279] write(3, "1000", 4) = 4 [pid 6279] close(3) = 0 executing program [pid 6279] write(1, "executing program\n", 18) = 18 [pid 6279] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6279] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6279] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6279] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6279] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6279] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6279] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6281 attached [pid 6281] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6279] <... clone3 resumed> => {parent_tid=[6281]}, 88) = 6281 [pid 6281] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6281] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6281] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6279] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6279] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6281] <... futex resumed>) = 0 [pid 6279] <... futex resumed>) = 1 [pid 6279] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6281] memfd_create("syzkaller", 0) = 3 [pid 6281] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6276] <... close resumed>) = 0 [pid 6280] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6276] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6275] <... futex resumed>) = 0 [pid 6276] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6275] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6276] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6275] <... futex resumed>) = 0 [pid 6276] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6276] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6275] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6276] <... futex resumed>) = 0 [pid 6276] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6275] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6275] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6276] <... futex resumed>) = 0 [pid 6276] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6276] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6275] <... futex resumed>) = 0 [pid 6276] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6275] exit_group(0) = ? [pid 6276] <... futex resumed>) = ? [pid 6276] +++ exited with 0 +++ [pid 6275] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6275, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6282 attached , child_tidptr=0x55556c203690) = 6282 [pid 6282] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6282] setpgid(0, 0) = 0 [pid 6282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6282] write(3, "1000", 4) = 4 [pid 6282] close(3) = 0 [pid 6282] write(1, "executing program\n", 18executing program ) = 18 [pid 6282] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6282] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6282] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6282] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6281] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6282] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6282] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6282] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6283]}, 88) = 6283 [pid 6282] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6282] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6282] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6283 attached [pid 6283] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6283] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6283] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6283] memfd_create("syzkaller", 0) = 3 [pid 6283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6283] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6281] <... write resumed>) = 16777216 [pid 6281] munmap(0x7fb71c400000, 138412032 [pid 6280] <... write resumed>) = 16777216 [pid 6280] munmap(0x7fb71c400000, 138412032 [pid 6281] <... munmap resumed>) = 0 [pid 6281] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6281] close(3 [pid 6280] <... munmap resumed>) = 0 [pid 6280] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6280] close(3 [pid 6283] <... write resumed>) = 16777216 [pid 6283] munmap(0x7fb71c400000, 138412032 [pid 6280] <... close resumed>) = 0 [pid 6280] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6278] <... futex resumed>) = 0 [pid 6280] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6283] <... munmap resumed>) = 0 [pid 6278] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6283] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6280] <... futex resumed>) = 0 [pid 6281] <... close resumed>) = 0 [pid 6278] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6280] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6280] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6278] <... futex resumed>) = 0 [pid 6281] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6280] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6278] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6280] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6281] <... futex resumed>) = 1 [pid 6279] <... futex resumed>) = 0 [pid 6278] <... futex resumed>) = 0 [pid 6280] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6278] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6279] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6281] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6280] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6279] <... futex resumed>) = 0 [pid 6281] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6279] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6281] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6280] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6279] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6283] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6281] <... futex resumed>) = 0 [pid 6279] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6278] <... futex resumed>) = 0 [pid 6280] <... futex resumed>) = 1 [pid 6283] close(3 [pid 6279] <... futex resumed>) = 0 [pid 6280] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6278] exit_group(0 [pid 6279] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6280] <... futex resumed>) = ? [pid 6278] <... exit_group resumed>) = ? [pid 6280] +++ exited with 0 +++ [pid 6281] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6278] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6278, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 6281] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6281] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6279] <... futex resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6281] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6279] exit_group(0 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6281] <... futex resumed>) = ? [pid 6279] <... exit_group resumed>) = ? [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6281] +++ exited with 0 +++ [pid 6279] +++ exited with 0 +++ ./strace-static-x86_64: Process 6284 attached [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6284 [pid 6284] set_robust_list(0x55556c2036a0, 24 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6279, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 6284] <... set_robust_list resumed>) = 0 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6284] setpgid(0, 0) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6284] write(3, "1000", 4) = 4 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6284] close(3) = 0 executing program [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6284] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 6285 attached [pid 6284] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6285] set_robust_list(0x55556c2036a0, 24 [pid 6284] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6285] <... set_robust_list resumed>) = 0 [pid 6285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6285] setpgid(0, 0) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6285 [pid 6285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6284] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6285] write(3, "1000", 4 [pid 6284] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6285] <... write resumed>) = 4 [pid 6284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6285] close(3 [pid 6284] <... mmap resumed>) = 0x7fb72495a000 [pid 6285] <... close resumed>) = 0 executing program [pid 6285] write(1, "executing program\n", 18) = 18 [pid 6285] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6285] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6284] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6285] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6284] <... mprotect resumed>) = 0 [pid 6285] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6285] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6284] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6285] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6284] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6285] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6284] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6286 attached [pid 6285] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6285] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6287 attached [pid 6284] <... clone3 resumed> => {parent_tid=[6286]}, 88) = 6286 [pid 6287] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6286] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6285] <... clone3 resumed> => {parent_tid=[6287]}, 88) = 6287 [pid 6284] rt_sigprocmask(SIG_SETMASK, [], [pid 6283] <... close resumed>) = 0 [pid 6287] <... rseq resumed>) = 0 [pid 6286] <... rseq resumed>) = 0 [pid 6285] rt_sigprocmask(SIG_SETMASK, [], [pid 6284] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6283] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6287] set_robust_list(0x7fb72497a9a0, 24 [pid 6286] set_robust_list(0x7fb72497a9a0, 24 [pid 6285] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6284] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6287] <... set_robust_list resumed>) = 0 [pid 6286] <... set_robust_list resumed>) = 0 [pid 6285] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6283] <... futex resumed>) = 1 [pid 6282] <... futex resumed>) = 0 [pid 6284] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6287] rt_sigprocmask(SIG_SETMASK, [], [pid 6286] rt_sigprocmask(SIG_SETMASK, [], [pid 6285] <... futex resumed>) = 0 [pid 6283] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6282] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6287] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6285] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6282] <... futex resumed>) = 0 [pid 6287] memfd_create("syzkaller", 0 [pid 6286] memfd_create("syzkaller", 0 [pid 6283] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6282] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6287] <... memfd_create resumed>) = 3 [pid 6286] <... memfd_create resumed>) = 3 [pid 6283] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6283] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6287] <... mmap resumed>) = 0x7fb71c400000 [pid 6286] <... mmap resumed>) = 0x7fb71c400000 [pid 6283] <... futex resumed>) = 1 [pid 6282] <... futex resumed>) = 0 [pid 6282] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6283] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6282] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6283] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6283] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6282] <... futex resumed>) = 0 [pid 6283] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6282] exit_group(0 [pid 6283] <... futex resumed>) = ? [pid 6282] <... exit_group resumed>) = ? [pid 6283] +++ exited with 0 +++ [pid 6282] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6282, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6288 attached [pid 6288] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6288 [pid 6288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6288] setpgid(0, 0) = 0 [pid 6288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6288] write(3, "1000", 4) = 4 [pid 6288] close(3) = 0 [pid 6288] write(1, "executing program\n", 18) = 18 [pid 6288] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6288] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6288] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6288] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6289 attached [pid 6289] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6288] <... clone3 resumed> => {parent_tid=[6289]}, 88) = 6289 [pid 6289] <... rseq resumed>) = 0 [pid 6288] rt_sigprocmask(SIG_SETMASK, [], [pid 6289] set_robust_list(0x7fb72497a9a0, 24 [pid 6288] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6289] <... set_robust_list resumed>) = 0 [pid 6288] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6289] rt_sigprocmask(SIG_SETMASK, [], [pid 6288] <... futex resumed>) = 0 [pid 6289] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6288] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6289] memfd_create("syzkaller", 0) = 3 [pid 6289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6286] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6287] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6289] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6287] <... write resumed>) = 16777216 [pid 6286] <... write resumed>) = 16777216 [pid 6287] munmap(0x7fb71c400000, 138412032 [pid 6286] munmap(0x7fb71c400000, 138412032 [pid 6287] <... munmap resumed>) = 0 [pid 6286] <... munmap resumed>) = 0 [pid 6287] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6287] close(3 [pid 6286] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6286] close(3 [pid 6289] <... write resumed>) = 16777216 [pid 6289] munmap(0x7fb71c400000, 138412032) = 0 [pid 6289] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6289] close(3 [pid 6287] <... close resumed>) = 0 [pid 6287] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6287] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6285] <... futex resumed>) = 0 [pid 6285] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6287] <... futex resumed>) = 0 [pid 6287] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6287] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6285] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6287] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6285] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6287] <... futex resumed>) = 0 [pid 6285] <... futex resumed>) = 1 [pid 6287] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6285] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6287] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6287] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6287] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6285] exit_group(0 [pid 6287] <... futex resumed>) = ? [pid 6285] <... exit_group resumed>) = ? [pid 6287] +++ exited with 0 +++ [pid 6285] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6285, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6290 ./strace-static-x86_64: Process 6290 attached [pid 6290] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6290] setpgid(0, 0) = 0 [pid 6290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6290] write(3, "1000", 4) = 4 [pid 6290] close(3) = 0 [pid 6290] write(1, "executing program\n", 18executing program ) = 18 [pid 6290] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6290] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6290] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6290] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6290] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6290] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6290] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6291 attached [pid 6291] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6286] <... close resumed>) = 0 [pid 6290] <... clone3 resumed> => {parent_tid=[6291]}, 88) = 6291 [pid 6291] <... rseq resumed>) = 0 [pid 6290] rt_sigprocmask(SIG_SETMASK, [], [pid 6286] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6291] set_robust_list(0x7fb72497a9a0, 24 [pid 6290] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6286] <... futex resumed>) = 1 [pid 6284] <... futex resumed>) = 0 [pid 6291] <... set_robust_list resumed>) = 0 [pid 6290] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6286] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6284] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6291] rt_sigprocmask(SIG_SETMASK, [], [pid 6290] <... futex resumed>) = 0 [pid 6286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6284] <... futex resumed>) = 0 [pid 6291] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6290] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6286] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6284] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6291] memfd_create("syzkaller", 0) = 3 [pid 6286] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6286] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6291] <... mmap resumed>) = 0x7fb71c400000 [pid 6286] <... futex resumed>) = 1 [pid 6284] <... futex resumed>) = 0 [pid 6284] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6284] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6286] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6286] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6286] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6289] <... close resumed>) = 0 [pid 6284] <... futex resumed>) = 0 [pid 6284] exit_group(0 [pid 6289] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6284] <... exit_group resumed>) = ? [pid 6286] <... futex resumed>) = ? [pid 6289] <... futex resumed>) = 1 [pid 6289] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6286] +++ exited with 0 +++ [pid 6284] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6284, si_uid=0, si_status=0, si_utime=0, si_stime=39 /* 0.39 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6288] <... futex resumed>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6288] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6289] <... futex resumed>) = 0 [pid 6289] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6288] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6289] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6289] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6288] <... futex resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6289] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6288] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6288] <... futex resumed>) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6289] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6288] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6289] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6289] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6292 attached ) = 0 [pid 6288] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6292] set_robust_list(0x55556c2036a0, 24 [pid 6289] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6288] exit_group(0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6292 [pid 6292] <... set_robust_list resumed>) = 0 [pid 6288] <... exit_group resumed>) = ? [pid 6289] <... futex resumed>) = ? [pid 6292] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6289] +++ exited with 0 +++ [pid 6288] +++ exited with 0 +++ [pid 6292] <... prctl resumed>) = 0 [pid 6292] setpgid(0, 0) = 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6288, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5868] <... restart_syscall resumed>) = 0 [pid 6292] <... openat resumed>) = 3 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6292] write(3, "1000", 4) = 4 [pid 6292] close(3) = 0 [pid 6292] write(1, "executing program\n", 18executing program [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6292] <... write resumed>) = 18 [pid 6292] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6293 attached [pid 6292] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6292] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6292] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6292] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6292] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6293 [pid 6292] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6294 attached [pid 6293] set_robust_list(0x55556c2036a0, 24 [pid 6294] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6293] <... set_robust_list resumed>) = 0 [pid 6292] <... clone3 resumed> => {parent_tid=[6294]}, 88) = 6294 [pid 6294] <... rseq resumed>) = 0 [pid 6294] set_robust_list(0x7fb72497a9a0, 24 [pid 6293] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6292] rt_sigprocmask(SIG_SETMASK, [], [pid 6294] <... set_robust_list resumed>) = 0 [pid 6293] <... prctl resumed>) = 0 [pid 6292] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6294] rt_sigprocmask(SIG_SETMASK, [], [pid 6293] setpgid(0, 0 [pid 6292] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6294] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6293] <... setpgid resumed>) = 0 [pid 6292] <... futex resumed>) = 0 [pid 6294] memfd_create("syzkaller", 0 [pid 6292] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6294] <... memfd_create resumed>) = 3 [pid 6293] <... openat resumed>) = 3 [pid 6293] write(3, "1000", 4) = 4 [pid 6294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6293] close(3 [pid 6294] <... mmap resumed>) = 0x7fb71c400000 [pid 6293] <... close resumed>) = 0 executing program [pid 6293] write(1, "executing program\n", 18) = 18 [pid 6293] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6293] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6293] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6293] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6293] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6293] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6295 attached => {parent_tid=[6295]}, 88) = 6295 [pid 6295] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6293] rt_sigprocmask(SIG_SETMASK, [], [pid 6295] <... rseq resumed>) = 0 [pid 6293] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6295] set_robust_list(0x7fb72497a9a0, 24 [pid 6293] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6295] <... set_robust_list resumed>) = 0 [pid 6293] <... futex resumed>) = 0 [pid 6295] rt_sigprocmask(SIG_SETMASK, [], [pid 6293] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6295] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6295] memfd_create("syzkaller", 0) = 3 [pid 6295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6291] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6295] <... mmap resumed>) = 0x7fb71c400000 [pid 6294] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6295] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6291] <... write resumed>) = 16777216 [pid 6291] munmap(0x7fb71c400000, 138412032) = 0 [pid 6291] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6291] close(3 [pid 6294] <... write resumed>) = 16777216 [pid 6294] munmap(0x7fb71c400000, 138412032) = 0 [pid 6294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6294] close(3 [pid 6295] <... write resumed>) = 16777216 [pid 6291] <... close resumed>) = 0 [pid 6295] munmap(0x7fb71c400000, 138412032 [pid 6291] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6290] <... futex resumed>) = 0 [pid 6291] <... futex resumed>) = 1 [pid 6290] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6291] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6290] <... futex resumed>) = 0 [pid 6290] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6291] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6291] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6290] <... futex resumed>) = 0 [pid 6291] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6290] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6291] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6290] <... futex resumed>) = 0 [pid 6291] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6290] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6291] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6291] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6290] <... futex resumed>) = 0 [pid 6290] exit_group(0) = ? [pid 6291] +++ exited with 0 +++ [pid 6290] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6290, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6296 attached , child_tidptr=0x55556c203690) = 6296 [pid 6295] <... munmap resumed>) = 0 [pid 6296] set_robust_list(0x55556c2036a0, 24 [pid 6295] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6296] <... set_robust_list resumed>) = 0 [pid 6296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6296] setpgid(0, 0) = 0 [pid 6295] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6295] close(3 [pid 6296] write(3, "1000", 4executing program ) = 4 [pid 6296] close(3) = 0 [pid 6296] write(1, "executing program\n", 18) = 18 [pid 6296] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6296] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6296] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6297 attached [pid 6297] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6296] <... clone3 resumed> => {parent_tid=[6297]}, 88) = 6297 [pid 6297] <... rseq resumed>) = 0 [pid 6296] rt_sigprocmask(SIG_SETMASK, [], [pid 6297] set_robust_list(0x7fb72497a9a0, 24 [pid 6296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6297] <... set_robust_list resumed>) = 0 [pid 6296] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6297] rt_sigprocmask(SIG_SETMASK, [], [pid 6296] <... futex resumed>) = 0 [pid 6297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6296] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6297] memfd_create("syzkaller", 0) = 3 [pid 6297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6294] <... close resumed>) = 0 [pid 6294] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6294] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6292] <... futex resumed>) = 0 [pid 6292] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6294] <... futex resumed>) = 0 [pid 6292] <... futex resumed>) = 1 [pid 6294] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6292] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6294] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6294] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6294] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6292] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6292] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6294] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6294] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6292] <... futex resumed>) = 0 [pid 6294] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6292] exit_group(0 [pid 6294] <... futex resumed>) = ? [pid 6292] <... exit_group resumed>) = ? [pid 6294] +++ exited with 0 +++ [pid 6292] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6292, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6298 attached , child_tidptr=0x55556c203690) = 6298 [pid 6298] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6298] setpgid(0, 0) = 0 [pid 6298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6298] write(3, "1000", 4) = 4 executing program [pid 6298] close(3) = 0 [pid 6298] write(1, "executing program\n", 18) = 18 [pid 6298] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6298] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6298] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6298] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6299 attached [pid 6299] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6298] <... clone3 resumed> => {parent_tid=[6299]}, 88) = 6299 [pid 6299] <... rseq resumed>) = 0 [pid 6298] rt_sigprocmask(SIG_SETMASK, [], [pid 6299] set_robust_list(0x7fb72497a9a0, 24 [pid 6298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6299] <... set_robust_list resumed>) = 0 [pid 6298] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6299] rt_sigprocmask(SIG_SETMASK, [], [pid 6298] <... futex resumed>) = 0 [pid 6299] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6298] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6299] memfd_create("syzkaller", 0) = 3 [pid 6299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6295] <... close resumed>) = 0 [pid 6295] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6293] <... futex resumed>) = 0 [pid 6295] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6293] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6295] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6293] <... futex resumed>) = 0 [pid 6295] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6295] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6295] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6293] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6293] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6295] <... futex resumed>) = 0 [pid 6293] <... futex resumed>) = 1 [pid 6295] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6293] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6295] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6295] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6293] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6295] <... futex resumed>) = 0 [pid 6295] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6293] exit_group(0) = ? [pid 6295] <... futex resumed>) = ? [pid 6295] +++ exited with 0 +++ [pid 6293] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6293, si_uid=0, si_status=0, si_utime=0, si_stime=40 /* 0.40 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6299] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6300 attached , child_tidptr=0x55556c203690) = 6300 [pid 6300] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6300] setpgid(0, 0) = 0 [pid 6300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6300] write(3, "1000", 4) = 4 [pid 6300] close(3) = 0 [pid 6300] write(1, "executing program\n", 18) = 18 [pid 6300] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6300] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6300] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6300] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6300] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6300] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6301 attached => {parent_tid=[6301]}, 88) = 6301 [pid 6300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6300] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6300] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6301] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6301] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6301] memfd_create("syzkaller", 0) = 3 [pid 6301] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6297] <... write resumed>) = 16777216 [pid 6297] munmap(0x7fb71c400000, 138412032) = 0 [pid 6297] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6297] close(3 [pid 6301] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6299] <... write resumed>) = 16777216 [pid 6299] munmap(0x7fb71c400000, 138412032) = 0 [pid 6299] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6299] close(3 [pid 6297] <... close resumed>) = 0 [pid 6297] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6296] <... futex resumed>) = 0 [pid 6297] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6296] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6297] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6296] <... futex resumed>) = 0 [pid 6297] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6296] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6297] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6296] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6296] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6296] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6297] <... futex resumed>) = 0 [pid 6297] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6297] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6296] <... futex resumed>) = 0 [pid 6296] exit_group(0) = ? [pid 6297] +++ exited with 0 +++ [pid 6296] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6296, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6302 attached , child_tidptr=0x55556c203690) = 6302 [pid 6302] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6302] setpgid(0, 0) = 0 [pid 6302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6302] write(3, "1000", 4) = 4 [pid 6302] close(3executing program ) = 0 [pid 6302] write(1, "executing program\n", 18) = 18 [pid 6302] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6302] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6302] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6302] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6302] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6302] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6303]}, 88) = 6303 [pid 6302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 6303 attached [pid 6302] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6302] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6303] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6303] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6303] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6303] memfd_create("syzkaller", 0) = 3 [pid 6303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6301] <... write resumed>) = 16777216 [pid 6301] munmap(0x7fb71c400000, 138412032) = 0 [pid 6301] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6301] close(3 [pid 6299] <... close resumed>) = 0 [pid 6299] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6298] <... futex resumed>) = 0 [pid 6299] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6298] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6299] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6298] <... futex resumed>) = 0 [pid 6299] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6298] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6299] <... futex resumed>) = 0 [pid 6298] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6298] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6299] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6298] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6299] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6299] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6298] <... futex resumed>) = 0 [pid 6298] exit_group(0) = ? [pid 6299] +++ exited with 0 +++ [pid 6298] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6298, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6304 attached , child_tidptr=0x55556c203690) = 6304 [pid 6304] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6304] setpgid(0, 0) = 0 [pid 6304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6304] write(3, "1000", 4) = 4 [pid 6304] close(3) = 0 executing program [pid 6304] write(1, "executing program\n", 18) = 18 [pid 6304] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6304] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6304] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6303] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6304] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6304] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6304] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6305 attached => {parent_tid=[6305]}, 88) = 6305 [pid 6305] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6304] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6304] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6305] <... rseq resumed>) = 0 [pid 6305] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6305] memfd_create("syzkaller", 0) = 3 [pid 6305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6301] <... close resumed>) = 0 [pid 6301] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6300] <... futex resumed>) = 0 [pid 6301] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6300] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6300] <... futex resumed>) = 0 [pid 6301] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6300] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6301] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6301] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6300] <... futex resumed>) = 0 [pid 6301] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6300] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6300] <... futex resumed>) = 0 [pid 6301] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6300] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6301] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6301] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6300] <... futex resumed>) = 0 [pid 6301] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6300] exit_group(0 [pid 6301] <... futex resumed>) = ? [pid 6300] <... exit_group resumed>) = ? [pid 6301] +++ exited with 0 +++ [pid 6300] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6300, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6306 attached , child_tidptr=0x55556c203690) = 6306 [pid 6306] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6306] setpgid(0, 0) = 0 [pid 6306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6306] write(3, "1000", 4) = 4 [pid 6306] close(3executing program ) = 0 [pid 6306] write(1, "executing program\n", 18) = 18 [pid 6306] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6306] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6306] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6306] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6306] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6306] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6307 attached [pid 6307] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6306] <... clone3 resumed> => {parent_tid=[6307]}, 88) = 6307 [pid 6307] <... rseq resumed>) = 0 [pid 6306] rt_sigprocmask(SIG_SETMASK, [], [pid 6307] set_robust_list(0x7fb72497a9a0, 24 [pid 6306] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6307] <... set_robust_list resumed>) = 0 [pid 6306] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6307] rt_sigprocmask(SIG_SETMASK, [], [pid 6306] <... futex resumed>) = 0 [pid 6307] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6306] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6307] memfd_create("syzkaller", 0) = 3 [pid 6307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6303] <... write resumed>) = 16777216 [pid 6307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6303] munmap(0x7fb71c400000, 138412032) = 0 [pid 6303] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6303] close(3 [pid 6305] <... write resumed>) = 16777216 [pid 6305] munmap(0x7fb71c400000, 138412032) = 0 [pid 6305] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6305] close(3 [pid 6303] <... close resumed>) = 0 [pid 6303] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6302] <... futex resumed>) = 0 [pid 6302] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6302] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6303] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6307] <... write resumed>) = 16777216 [pid 6303] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6307] munmap(0x7fb71c400000, 138412032 [pid 6302] <... futex resumed>) = 0 [pid 6303] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6302] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6302] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6303] <... futex resumed>) = 0 [pid 6307] <... munmap resumed>) = 0 [pid 6303] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6307] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6303] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6307] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6303] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6302] <... futex resumed>) = 0 [pid 6303] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6302] exit_group(0 [pid 6307] close(3 [pid 6303] <... futex resumed>) = ? [pid 6302] <... exit_group resumed>) = ? [pid 6303] +++ exited with 0 +++ [pid 6302] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6302, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6308 ./strace-static-x86_64: Process 6308 attached [pid 6308] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6308] setpgid(0, 0) = 0 [pid 6308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6308] write(3, "1000", 4executing program ) = 4 [pid 6308] close(3) = 0 [pid 6308] write(1, "executing program\n", 18) = 18 [pid 6308] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6308] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6308] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6308] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6308] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6308] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6308] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6309 attached => {parent_tid=[6309]}, 88) = 6309 [pid 6308] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6308] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6308] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6309] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6309] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6309] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6309] memfd_create("syzkaller", 0) = 3 [pid 6309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6305] <... close resumed>) = 0 [pid 6307] <... close resumed>) = 0 [pid 6305] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6307] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6306] <... futex resumed>) = 0 [pid 6307] <... futex resumed>) = 1 [pid 6305] <... futex resumed>) = 1 [pid 6304] <... futex resumed>) = 0 [pid 6307] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6306] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6304] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6306] <... futex resumed>) = 0 [pid 6304] <... futex resumed>) = 0 [pid 6307] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6306] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6304] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6307] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6307] <... futex resumed>) = 0 [pid 6306] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6305] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6306] <... futex resumed>) = 0 [pid 6305] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6307] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6306] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6305] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6307] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6305] <... futex resumed>) = 1 [pid 6304] <... futex resumed>) = 0 [pid 6307] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6305] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6304] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6307] <... futex resumed>) = 1 [pid 6306] <... futex resumed>) = 0 [pid 6305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6304] <... futex resumed>) = 0 [pid 6307] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6306] exit_group(0 [pid 6305] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6304] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6307] <... futex resumed>) = ? [pid 6306] <... exit_group resumed>) = ? [pid 6307] +++ exited with 0 +++ [pid 6305] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6305] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6305] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6304] <... futex resumed>) = 0 [pid 6306] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6306, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=34 /* 0.34 s */} --- [pid 6304] exit_group(0 [pid 6305] <... futex resumed>) = ? [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6305] +++ exited with 0 +++ [pid 6304] <... exit_group resumed>) = ? [pid 6304] +++ exited with 0 +++ [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6304, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- ./strace-static-x86_64: Process 6310 attached [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6310 [pid 6310] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6310] <... set_robust_list resumed>) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6310] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6311 attached [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6311 [pid 6311] set_robust_list(0x55556c2036a0, 24 [pid 6310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6311] <... set_robust_list resumed>) = 0 [pid 6311] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6310] <... openat resumed>) = 3 [pid 6311] <... prctl resumed>) = 0 [pid 6310] write(3, "1000", 4 [pid 6311] setpgid(0, 0 [pid 6310] <... write resumed>) = 4 [pid 6311] <... setpgid resumed>) = 0 [pid 6310] close(3 [pid 6311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6310] <... close resumed>) = 0 [pid 6310] write(1, "executing program\n", 18executing program [pid 6311] <... openat resumed>) = 3 [pid 6310] <... write resumed>) = 18 [pid 6310] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6310] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6311] write(3, "1000", 4 [pid 6310] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6311] <... write resumed>) = 4 [pid 6311] close(3 [pid 6310] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6311] <... close resumed>) = 0 executing program [pid 6311] write(1, "executing program\n", 18 [pid 6310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6311] <... write resumed>) = 18 [pid 6310] <... mmap resumed>) = 0x7fb72495a000 [pid 6311] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6310] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6311] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6310] <... mprotect resumed>) = 0 [pid 6311] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6310] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6311] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6310] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6310] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6312 attached [pid 6311] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6311] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6312] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6310] <... clone3 resumed> => {parent_tid=[6312]}, 88) = 6312 [pid 6312] <... rseq resumed>) = 0 [pid 6311] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6310] rt_sigprocmask(SIG_SETMASK, [], [pid 6312] set_robust_list(0x7fb72497a9a0, 24 [pid 6311] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6310] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 6313 attached [pid 6312] <... set_robust_list resumed>) = 0 [pid 6310] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6313] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6312] rt_sigprocmask(SIG_SETMASK, [], [pid 6310] <... futex resumed>) = 0 [pid 6313] <... rseq resumed>) = 0 [pid 6312] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6311] <... clone3 resumed> => {parent_tid=[6313]}, 88) = 6313 [pid 6310] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6313] set_robust_list(0x7fb72497a9a0, 24 [pid 6312] memfd_create("syzkaller", 0 [pid 6311] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6311] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6311] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6312] <... memfd_create resumed>) = 3 [pid 6312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6313] <... set_robust_list resumed>) = 0 [pid 6312] <... mmap resumed>) = 0x7fb71c400000 [pid 6313] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6313] memfd_create("syzkaller", 0) = 3 [pid 6313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6309] <... write resumed>) = 16777216 [pid 6309] munmap(0x7fb71c400000, 138412032) = 0 [pid 6309] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6309] close(3 [pid 6313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6312] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6309] <... close resumed>) = 0 [pid 6309] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6308] <... futex resumed>) = 0 [pid 6309] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6308] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6308] <... futex resumed>) = 0 [pid 6309] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6308] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6309] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6309] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6308] <... futex resumed>) = 0 [pid 6309] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6308] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6308] <... futex resumed>) = 0 [pid 6308] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6309] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6309] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6308] <... futex resumed>) = 0 [pid 6309] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6308] exit_group(0) = ? [pid 6309] <... futex resumed>) = ? [pid 6309] +++ exited with 0 +++ [pid 6308] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6308, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6314 ./strace-static-x86_64: Process 6314 attached [pid 6314] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6314] setpgid(0, 0 [pid 6313] <... write resumed>) = 16777216 [pid 6314] <... setpgid resumed>) = 0 [pid 6314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6313] munmap(0x7fb71c400000, 138412032 [pid 6314] <... openat resumed>) = 3 [pid 6314] write(3, "1000", 4) = 4 [pid 6314] close(3executing program ) = 0 [pid 6314] write(1, "executing program\n", 18) = 18 [pid 6314] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6314] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6314] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6314] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6314] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6315 attached [pid 6315] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6315] set_robust_list(0x7fb72497a9a0, 24 [pid 6314] <... clone3 resumed> => {parent_tid=[6315]}, 88) = 6315 [pid 6315] <... set_robust_list resumed>) = 0 [pid 6314] rt_sigprocmask(SIG_SETMASK, [], [pid 6315] rt_sigprocmask(SIG_SETMASK, [], [pid 6314] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6315] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6314] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6315] memfd_create("syzkaller", 0 [pid 6314] <... futex resumed>) = 0 [pid 6314] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6315] <... memfd_create resumed>) = 3 [pid 6315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6313] <... munmap resumed>) = 0 [pid 6313] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6313] close(3 [pid 6315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6312] <... write resumed>) = 16777216 [pid 6312] munmap(0x7fb71c400000, 138412032) = 0 [pid 6312] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6312] close(3 [pid 6313] <... close resumed>) = 0 [pid 6313] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6313] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6311] <... futex resumed>) = 0 [pid 6311] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6313] <... futex resumed>) = 0 [pid 6311] <... futex resumed>) = 1 [pid 6313] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6311] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6313] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6313] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6311] <... futex resumed>) = 0 [pid 6313] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6311] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6313] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6311] <... futex resumed>) = 0 [pid 6313] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6311] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6313] <... futex resumed>) = 0 [pid 6311] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6311] exit_group(0) = ? [pid 6313] +++ exited with 0 +++ [pid 6311] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6311, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6316 attached [pid 6316] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6316] setpgid(0, 0) = 0 [pid 6316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6316] write(3, "1000", 4) = 4 [pid 6316] close(3 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6316 [pid 6316] <... close resumed>) = 0 executing program [pid 6316] write(1, "executing program\n", 18) = 18 [pid 6316] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6316] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6316] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6316] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6316] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6316] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6317]}, 88) = 6317 [pid 6316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6316] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6317 attached ) = 0 [pid 6317] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6316] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6317] <... rseq resumed>) = 0 [pid 6317] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6317] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6317] memfd_create("syzkaller", 0) = 3 [pid 6317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6315] <... write resumed>) = 16777216 [pid 6312] <... close resumed>) = 0 [pid 6315] munmap(0x7fb71c400000, 138412032 [pid 6312] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6312] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6310] <... futex resumed>) = 0 [pid 6315] <... munmap resumed>) = 0 [pid 6310] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6315] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6312] <... futex resumed>) = 0 [pid 6310] <... futex resumed>) = 1 [pid 6315] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6312] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6310] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6312] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6315] close(3 [pid 6312] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6312] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6310] <... futex resumed>) = 0 [pid 6310] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6312] <... futex resumed>) = 0 [pid 6312] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6312] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6312] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6310] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6310] exit_group(0 [pid 6317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6312] <... futex resumed>) = ? [pid 6310] <... exit_group resumed>) = ? [pid 6312] +++ exited with 0 +++ [pid 6310] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6310, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6318 ./strace-static-x86_64: Process 6318 attached [pid 6318] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6318] setpgid(0, 0) = 0 [pid 6318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6318] write(3, "1000", 4) = 4 [pid 6318] close(3executing program ) = 0 [pid 6318] write(1, "executing program\n", 18) = 18 [pid 6318] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6318] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6318] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6318] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6318] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6318] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6318] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6319 attached [pid 6319] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6318] <... clone3 resumed> => {parent_tid=[6319]}, 88) = 6319 [pid 6319] <... rseq resumed>) = 0 [pid 6318] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6319] set_robust_list(0x7fb72497a9a0, 24 [pid 6318] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6318] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6319] <... set_robust_list resumed>) = 0 [pid 6319] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6319] memfd_create("syzkaller", 0) = 3 [pid 6319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6315] <... close resumed>) = 0 [pid 6315] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6319] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6317] <... write resumed>) = 16777216 [pid 6317] munmap(0x7fb71c400000, 138412032 [pid 6315] <... futex resumed>) = 1 [pid 6314] <... futex resumed>) = 0 [pid 6314] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6314] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6315] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6315] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6315] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6314] <... futex resumed>) = 0 [pid 6314] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6317] <... munmap resumed>) = 0 [pid 6315] <... futex resumed>) = 0 [pid 6314] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6317] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6315] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6317] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6315] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6315] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6314] <... futex resumed>) = 0 [pid 6317] close(3 [pid 6315] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6314] exit_group(0) = ? [pid 6315] <... futex resumed>) = ? [pid 6315] +++ exited with 0 +++ [pid 6314] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6314, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6320 attached [pid 6320] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6320 [pid 6320] <... set_robust_list resumed>) = 0 [pid 6320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6320] setpgid(0, 0) = 0 [pid 6320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6320] write(3, "1000", 4) = 4 [pid 6320] close(3) = 0 executing program [pid 6320] write(1, "executing program\n", 18) = 18 [pid 6320] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6320] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6320] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6320] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6320] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6320] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6320] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6321 attached => {parent_tid=[6321]}, 88) = 6321 [pid 6321] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6320] rt_sigprocmask(SIG_SETMASK, [], [pid 6321] set_robust_list(0x7fb72497a9a0, 24 [pid 6320] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6321] <... set_robust_list resumed>) = 0 [pid 6320] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6321] rt_sigprocmask(SIG_SETMASK, [], [pid 6320] <... futex resumed>) = 0 [pid 6321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6320] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6321] memfd_create("syzkaller", 0) = 3 [pid 6321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6319] <... write resumed>) = 16777216 [pid 6319] munmap(0x7fb71c400000, 138412032 [pid 6321] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6319] <... munmap resumed>) = 0 [pid 6317] <... close resumed>) = 0 [pid 6319] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6317] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6319] close(3 [pid 6317] <... futex resumed>) = 1 [pid 6316] <... futex resumed>) = 0 [pid 6316] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6316] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6317] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6317] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6316] <... futex resumed>) = 0 [pid 6317] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6316] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6317] <... futex resumed>) = 0 [pid 6316] <... futex resumed>) = 1 [pid 6317] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6316] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6317] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6316] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6317] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6316] exit_group(0 [pid 6317] <... futex resumed>) = ? [pid 6316] <... exit_group resumed>) = ? [pid 6317] +++ exited with 0 +++ [pid 6316] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6316, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=40 /* 0.40 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6322 attached , child_tidptr=0x55556c203690) = 6322 [pid 6322] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6322] setpgid(0, 0) = 0 [pid 6322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6322] write(3, "1000", 4) = 4 [pid 6322] close(3) = 0 executing program [pid 6322] write(1, "executing program\n", 18) = 18 [pid 6322] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6322] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6322] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6322] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6322] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6322] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6322] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6323 attached => {parent_tid=[6323]}, 88) = 6323 [pid 6323] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6322] rt_sigprocmask(SIG_SETMASK, [], [pid 6323] <... rseq resumed>) = 0 [pid 6323] set_robust_list(0x7fb72497a9a0, 24 [pid 6322] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6323] <... set_robust_list resumed>) = 0 [pid 6322] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6323] rt_sigprocmask(SIG_SETMASK, [], [pid 6322] <... futex resumed>) = 0 [pid 6323] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6322] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6323] memfd_create("syzkaller", 0) = 3 [pid 6323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6321] <... write resumed>) = 16777216 [pid 6319] <... close resumed>) = 0 [pid 6321] munmap(0x7fb71c400000, 138412032 [pid 6319] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6318] <... futex resumed>) = 0 [pid 6319] <... futex resumed>) = 1 [pid 6318] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6319] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6318] <... futex resumed>) = 0 [pid 6319] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6318] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6319] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6318] <... futex resumed>) = 0 [pid 6319] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6318] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6319] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6318] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6319] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6319] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6318] <... futex resumed>) = 0 [pid 6319] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6318] exit_group(0 [pid 6319] <... futex resumed>) = ? [pid 6318] <... exit_group resumed>) = ? [pid 6319] +++ exited with 0 +++ [pid 6318] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6318, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6324 [pid 6321] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 6324 attached [pid 6321] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6324] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6321] close(3 [pid 6323] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6324] setpgid(0, 0) = 0 [pid 6324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6324] write(3, "1000", 4) = 4 [pid 6324] close(3) = 0 [pid 6324] write(1, "executing program\n", 18executing program ) = 18 [pid 6324] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6324] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6324] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6324] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6324] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6324] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6324] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6325 attached => {parent_tid=[6325]}, 88) = 6325 [pid 6324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6324] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6324] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6325] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6325] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6325] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6325] memfd_create("syzkaller", 0) = 3 [pid 6325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6321] <... close resumed>) = 0 [pid 6321] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6320] <... futex resumed>) = 0 [pid 6320] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6320] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6321] <... futex resumed>) = 1 [pid 6321] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6321] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6320] <... futex resumed>) = 0 [pid 6321] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6320] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6321] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6320] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6321] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6321] <... futex resumed>) = 0 [pid 6320] exit_group(0) = ? [pid 6321] +++ exited with 0 +++ [pid 6320] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6320, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6326 attached , child_tidptr=0x55556c203690) = 6326 [pid 6326] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6326] setpgid(0, 0) = 0 [pid 6326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6326] write(3, "1000", 4) = 4 [pid 6326] close(3 [pid 6323] <... write resumed>) = 16777216 [pid 6326] <... close resumed>) = 0 [pid 6323] munmap(0x7fb71c400000, 138412032 [pid 6326] write(1, "executing program\n", 18executing program ) = 18 [pid 6326] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6326] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6326] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6326] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6326] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6326] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6327]}, 88) = 6327 [pid 6326] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6327 attached NULL, 8) = 0 [pid 6327] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6326] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6327] set_robust_list(0x7fb72497a9a0, 24 [pid 6326] <... futex resumed>) = 0 [pid 6327] <... set_robust_list resumed>) = 0 [pid 6326] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6327] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6327] memfd_create("syzkaller", 0) = 3 [pid 6327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6323] <... munmap resumed>) = 0 [pid 6323] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6323] close(3 [pid 6327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6325] <... write resumed>) = 16777216 [pid 6325] munmap(0x7fb71c400000, 138412032 [pid 6323] <... close resumed>) = 0 [pid 6323] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6322] <... futex resumed>) = 0 [pid 6322] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6323] <... futex resumed>) = 1 [pid 6322] <... futex resumed>) = 0 [pid 6323] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6322] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6325] <... munmap resumed>) = 0 [pid 6323] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6325] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6323] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6325] close(3 [pid 6323] <... futex resumed>) = 1 [pid 6322] <... futex resumed>) = 0 [pid 6323] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6322] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6323] <... futex resumed>) = 0 [pid 6322] <... futex resumed>) = 1 [pid 6323] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6322] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6323] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6323] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6323] <... futex resumed>) = 0 [pid 6323] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6322] exit_group(0 [pid 6323] <... futex resumed>) = ? [pid 6322] <... exit_group resumed>) = ? [pid 6323] +++ exited with 0 +++ [pid 6322] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6322, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6328 attached , child_tidptr=0x55556c203690) = 6328 [pid 6328] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6328] setpgid(0, 0) = 0 [pid 6328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6328] write(3, "1000", 4) = 4 [pid 6328] close(3) = 0 executing program [pid 6328] write(1, "executing program\n", 18) = 18 [pid 6328] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6328] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6328] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6328] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6328] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6328] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6329]}, 88) = 6329 [pid 6328] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6328] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6329 attached ) = 0 [pid 6328] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6329] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6329] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6329] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6329] memfd_create("syzkaller", 0) = 3 [pid 6329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6327] <... write resumed>) = 16777216 [pid 6327] munmap(0x7fb71c400000, 138412032) = 0 [pid 6327] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6327] close(3 [pid 6329] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6325] <... close resumed>) = 0 [pid 6325] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6324] <... futex resumed>) = 0 [pid 6325] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6324] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6325] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6324] <... futex resumed>) = 0 [pid 6325] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6324] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6325] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6325] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6324] <... futex resumed>) = 0 [pid 6325] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6324] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6325] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6324] <... futex resumed>) = 0 [pid 6325] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6324] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6325] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6325] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6324] <... futex resumed>) = 0 [pid 6325] <... futex resumed>) = 1 [pid 6324] exit_group(0 [pid 6325] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6324] <... exit_group resumed>) = ? [pid 6325] <... futex resumed>) = ? [pid 6325] +++ exited with 0 +++ [pid 6324] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6324, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6330 attached , child_tidptr=0x55556c203690) = 6330 [pid 6330] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6330] setpgid(0, 0) = 0 [pid 6330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6330] write(3, "1000", 4) = 4 [pid 6330] close(3) = 0 [pid 6330] write(1, "executing program\n", 18executing program ) = 18 [pid 6330] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6330] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6330] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6330] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6330] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6331 attached => {parent_tid=[6331]}, 88) = 6331 [pid 6331] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6330] rt_sigprocmask(SIG_SETMASK, [], [pid 6331] <... rseq resumed>) = 0 [pid 6330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6331] set_robust_list(0x7fb72497a9a0, 24 [pid 6330] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6331] <... set_robust_list resumed>) = 0 [pid 6330] <... futex resumed>) = 0 [pid 6331] rt_sigprocmask(SIG_SETMASK, [], [pid 6330] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6331] memfd_create("syzkaller", 0) = 3 [pid 6331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6327] <... close resumed>) = 0 [pid 6327] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6326] <... futex resumed>) = 0 [pid 6326] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6326] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6327] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6327] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6326] <... futex resumed>) = 0 [pid 6326] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6327] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6326] <... futex resumed>) = 0 [pid 6327] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6326] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6327] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6326] <... futex resumed>) = 0 [pid 6326] exit_group(0) = ? [pid 6327] +++ exited with 0 +++ [pid 6326] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6326, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=39 /* 0.39 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6332 attached , child_tidptr=0x55556c203690) = 6332 [pid 6332] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6332] setpgid(0, 0) = 0 [pid 6332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6332] write(3, "1000", 4) = 4 [pid 6332] close(3) = 0 executing program [pid 6332] write(1, "executing program\n", 18) = 18 [pid 6332] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6332] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6332] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6332] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6332] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6332] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6333 attached [pid 6333] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6332] <... clone3 resumed> => {parent_tid=[6333]}, 88) = 6333 [pid 6333] <... rseq resumed>) = 0 [pid 6332] rt_sigprocmask(SIG_SETMASK, [], [pid 6333] set_robust_list(0x7fb72497a9a0, 24 [pid 6332] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6333] <... set_robust_list resumed>) = 0 [pid 6332] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6333] rt_sigprocmask(SIG_SETMASK, [], [pid 6332] <... futex resumed>) = 0 [pid 6333] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6332] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6333] memfd_create("syzkaller", 0) = 3 [pid 6333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6329] <... write resumed>) = 16777216 [pid 6329] munmap(0x7fb71c400000, 138412032) = 0 [pid 6329] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6329] close(3 [pid 6333] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6331] <... write resumed>) = 16777216 [pid 6331] munmap(0x7fb71c400000, 138412032) = 0 [pid 6331] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6331] close(3 [pid 6329] <... close resumed>) = 0 [pid 6329] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6328] <... futex resumed>) = 0 [pid 6329] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6328] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6329] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6328] <... futex resumed>) = 0 [pid 6329] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6328] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6329] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6329] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6328] <... futex resumed>) = 0 [pid 6328] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6328] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6329] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6329] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6328] <... futex resumed>) = 0 [pid 6329] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6328] exit_group(0 [pid 6329] <... futex resumed>) = ? [pid 6328] <... exit_group resumed>) = ? [pid 6329] +++ exited with 0 +++ [pid 6328] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6328, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6334 ./strace-static-x86_64: Process 6334 attached [pid 6334] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6334] setpgid(0, 0) = 0 [pid 6334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6334] write(3, "1000", 4) = 4 [pid 6334] close(3) = 0 executing program [pid 6334] write(1, "executing program\n", 18) = 18 [pid 6334] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6334] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6334] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6334] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6334] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6334] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6335 attached => {parent_tid=[6335]}, 88) = 6335 [pid 6331] <... close resumed>) = 0 [pid 6335] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6334] rt_sigprocmask(SIG_SETMASK, [], [pid 6331] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6330] <... futex resumed>) = 0 [pid 6331] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6330] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6331] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6330] <... futex resumed>) = 0 [pid 6331] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6330] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6331] <... futex resumed>) = 0 [pid 6330] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6331] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6330] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6330] <... futex resumed>) = 0 [pid 6331] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6330] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6331] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6331] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6335] <... rseq resumed>) = 0 [pid 6334] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6333] <... write resumed>) = 16777216 [pid 6335] set_robust_list(0x7fb72497a9a0, 24 [pid 6334] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6333] munmap(0x7fb71c400000, 138412032 [pid 6331] <... futex resumed>) = 1 [pid 6330] <... futex resumed>) = 0 [pid 6335] <... set_robust_list resumed>) = 0 [pid 6334] <... futex resumed>) = 0 [pid 6335] rt_sigprocmask(SIG_SETMASK, [], [pid 6334] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6330] exit_group(0 [pid 6335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6330] <... exit_group resumed>) = ? [pid 6335] memfd_create("syzkaller", 0) = 3 [pid 6331] +++ exited with 0 +++ [pid 6330] +++ exited with 0 +++ [pid 6335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6330, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 6335] <... mmap resumed>) = 0x7fb71c400000 [pid 6333] <... munmap resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6333] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6333] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6333] close(3 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6336 attached [pid 6336] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6336 [pid 6336] <... set_robust_list resumed>) = 0 [pid 6336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6336] setpgid(0, 0) = 0 [pid 6336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6336] write(3, "1000", 4) = 4 [pid 6336] close(3) = 0 [pid 6336] write(1, "executing program\n", 18executing program ) = 18 [pid 6336] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6336] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6336] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6336] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6336] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6336] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6337]}, 88) = 6337 ./strace-static-x86_64: Process 6337 attached [pid 6336] rt_sigprocmask(SIG_SETMASK, [], [pid 6337] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6336] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6335] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6337] <... rseq resumed>) = 0 [pid 6336] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6336] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6337] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6337] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6337] memfd_create("syzkaller", 0) = 3 [pid 6337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6333] <... close resumed>) = 0 [pid 6333] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6332] <... futex resumed>) = 0 [pid 6333] <... futex resumed>) = 1 [pid 6332] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6333] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6332] <... futex resumed>) = 0 [pid 6333] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6332] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6333] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6332] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6332] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6333] <... futex resumed>) = 0 [pid 6332] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6333] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6333] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6332] <... futex resumed>) = 0 [pid 6332] exit_group(0 [pid 6333] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6332] <... exit_group resumed>) = ? [pid 6333] <... futex resumed>) = ? [pid 6333] +++ exited with 0 +++ [pid 6332] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6332, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6338 attached , child_tidptr=0x55556c203690) = 6338 [pid 6338] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6338] setpgid(0, 0) = 0 [pid 6338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6338] write(3, "1000", 4) = 4 [pid 6338] close(3) = 0 [pid 6338] write(1, "executing program\n", 18executing program ) = 18 [pid 6338] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6338] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6338] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6338] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6338] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6339 attached => {parent_tid=[6339]}, 88) = 6339 [pid 6338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6338] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6338] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6339] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6339] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6339] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6339] memfd_create("syzkaller", 0) = 3 [pid 6339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6335] <... write resumed>) = 16777216 [pid 6335] munmap(0x7fb71c400000, 138412032) = 0 [pid 6335] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6335] close(3 [pid 6337] <... write resumed>) = 16777216 [pid 6337] munmap(0x7fb71c400000, 138412032) = 0 [pid 6337] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6337] close(3 [pid 6339] <... write resumed>) = 16777216 [pid 6339] munmap(0x7fb71c400000, 138412032) = 0 [pid 6335] <... close resumed>) = 0 [pid 6339] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6335] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6334] <... futex resumed>) = 0 [pid 6334] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6334] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6335] <... futex resumed>) = 1 [pid 6335] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6339] close(3 [pid 6335] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6335] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6335] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6334] <... futex resumed>) = 0 [pid 6334] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6334] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6335] <... futex resumed>) = 0 [pid 6335] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6335] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6334] <... futex resumed>) = 0 [pid 6334] exit_group(0) = ? [pid 6335] +++ exited with 0 +++ [pid 6334] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6334, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6340 attached , child_tidptr=0x55556c203690) = 6340 [pid 6340] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6340] setpgid(0, 0) = 0 [pid 6340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6340] write(3, "1000", 4executing program ) = 4 [pid 6340] close(3) = 0 [pid 6340] write(1, "executing program\n", 18) = 18 [pid 6340] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6340] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6340] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6340] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6340] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6340] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6341 attached [pid 6341] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6340] <... clone3 resumed> => {parent_tid=[6341]}, 88) = 6341 [pid 6341] <... rseq resumed>) = 0 [pid 6340] rt_sigprocmask(SIG_SETMASK, [], [pid 6341] set_robust_list(0x7fb72497a9a0, 24 [pid 6340] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6341] <... set_robust_list resumed>) = 0 [pid 6340] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6341] rt_sigprocmask(SIG_SETMASK, [], [pid 6340] <... futex resumed>) = 0 [pid 6341] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6341] memfd_create("syzkaller", 0 [pid 6340] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6341] <... memfd_create resumed>) = 3 [pid 6341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6337] <... close resumed>) = 0 [pid 6337] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6336] <... futex resumed>) = 0 [pid 6337] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6336] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6336] <... futex resumed>) = 0 [pid 6337] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6336] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6337] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6337] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6336] <... futex resumed>) = 0 [pid 6337] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6336] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6337] <... futex resumed>) = 0 [pid 6337] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6336] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6337] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6337] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6337] <... futex resumed>) = 0 [pid 6337] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6336] exit_group(0 [pid 6337] <... futex resumed>) = ? [pid 6336] <... exit_group resumed>) = ? [pid 6337] +++ exited with 0 +++ [pid 6336] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6336, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6342 attached [pid 6342] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6342 [pid 6342] <... set_robust_list resumed>) = 0 [pid 6342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6342] setpgid(0, 0) = 0 [pid 6342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6342] write(3, "1000", 4) = 4 [pid 6342] close(3executing program ) = 0 [pid 6342] write(1, "executing program\n", 18) = 18 [pid 6342] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6342] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6342] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6342] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6342] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6342] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6342] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6343 attached [pid 6343] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6342] <... clone3 resumed> => {parent_tid=[6343]}, 88) = 6343 [pid 6343] <... rseq resumed>) = 0 [pid 6342] rt_sigprocmask(SIG_SETMASK, [], [pid 6343] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6342] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6343] rt_sigprocmask(SIG_SETMASK, [], [pid 6342] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6343] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6342] <... futex resumed>) = 0 [pid 6343] memfd_create("syzkaller", 0 [pid 6342] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6343] <... memfd_create resumed>) = 3 [pid 6343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6339] <... close resumed>) = 0 [pid 6339] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6338] <... futex resumed>) = 0 [pid 6339] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6338] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6338] <... futex resumed>) = 0 [pid 6339] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6338] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6339] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6339] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6339] <... futex resumed>) = 1 [pid 6338] <... futex resumed>) = 0 [pid 6339] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6338] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6338] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6339] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6339] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6338] <... futex resumed>) = 0 [pid 6338] exit_group(0) = ? [pid 6339] <... futex resumed>) = ? [pid 6339] +++ exited with 0 +++ [pid 6338] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6338, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6344 attached [pid 6344] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6344 [pid 6344] <... set_robust_list resumed>) = 0 [pid 6344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6344] setpgid(0, 0) = 0 [pid 6344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6344] write(3, "1000", 4) = 4 [pid 6344] close(3) = 0 executing program [pid 6344] write(1, "executing program\n", 18) = 18 [pid 6344] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6344] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6344] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6344] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6344] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6344] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6345 attached [pid 6345] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6345] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6345] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6344] <... clone3 resumed> => {parent_tid=[6345]}, 88) = 6345 [pid 6345] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6344] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6344] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6345] <... futex resumed>) = 0 [pid 6344] <... futex resumed>) = 1 [pid 6344] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6345] memfd_create("syzkaller", 0) = 3 [pid 6345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6341] <... write resumed>) = 16777216 [pid 6341] munmap(0x7fb71c400000, 138412032) = 0 [pid 6341] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6341] close(3 [pid 6343] <... write resumed>) = 16777216 [pid 6343] munmap(0x7fb71c400000, 138412032) = 0 [pid 6343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6343] close(3 [pid 6345] <... write resumed>) = 16777216 [pid 6345] munmap(0x7fb71c400000, 138412032) = 0 [pid 6345] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6341] <... close resumed>) = 0 [pid 6345] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6341] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6345] close(3 [pid 6341] <... futex resumed>) = 1 [pid 6340] <... futex resumed>) = 0 [pid 6341] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6340] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6340] <... futex resumed>) = 0 [pid 6341] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6340] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6341] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6341] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6340] <... futex resumed>) = 0 [pid 6341] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6340] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6340] <... futex resumed>) = 0 [pid 6341] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6340] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6341] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6341] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6340] <... futex resumed>) = 0 [pid 6341] <... futex resumed>) = 1 [pid 6341] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6340] exit_group(0 [pid 6341] <... futex resumed>) = ? [pid 6340] <... exit_group resumed>) = ? [pid 6341] +++ exited with 0 +++ [pid 6340] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6340, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=39 /* 0.39 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6346 attached , child_tidptr=0x55556c203690) = 6346 [pid 6346] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6346] setpgid(0, 0) = 0 [pid 6346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6346] write(3, "1000", 4) = 4 [pid 6346] close(3executing program ) = 0 [pid 6346] write(1, "executing program\n", 18) = 18 [pid 6346] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6346] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6343] <... close resumed>) = 0 [pid 6346] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6343] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6346] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6343] <... futex resumed>) = 1 [pid 6342] <... futex resumed>) = 0 [pid 6346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6342] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6346] <... mmap resumed>) = 0x7fb72495a000 [pid 6346] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6343] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6342] <... futex resumed>) = 0 [pid 6342] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6343] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6346] <... mprotect resumed>) = 0 [pid 6343] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6346] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6343] <... futex resumed>) = 1 [pid 6342] <... futex resumed>) = 0 [pid 6346] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6343] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6342] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6346] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6342] <... futex resumed>) = 0 [pid 6343] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6342] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6347 attached [pid 6343] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6347] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6346] <... clone3 resumed> => {parent_tid=[6347]}, 88) = 6347 [pid 6343] <... futex resumed>) = 1 [pid 6342] <... futex resumed>) = 0 [pid 6347] set_robust_list(0x7fb72497a9a0, 24 [pid 6346] rt_sigprocmask(SIG_SETMASK, [], [pid 6343] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6346] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6342] exit_group(0 [pid 6347] <... set_robust_list resumed>) = 0 [pid 6342] <... exit_group resumed>) = ? [pid 6347] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6346] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6347] memfd_create("syzkaller", 0 [pid 6346] <... futex resumed>) = 0 [pid 6343] <... futex resumed>) = ? [pid 6346] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6347] <... memfd_create resumed>) = 3 [pid 6343] +++ exited with 0 +++ [pid 6342] +++ exited with 0 +++ [pid 6347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6342, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 6347] <... mmap resumed>) = 0x7fb71c400000 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6348 attached , child_tidptr=0x55556c203690) = 6348 [pid 6348] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6348] setpgid(0, 0) = 0 [pid 6348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6348] write(3, "1000", 4) = 4 [pid 6348] close(3) = 0 [pid 6348] write(1, "executing program\n", 18) = 18 [pid 6348] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6348] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6348] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6348] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6348] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6348] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6349 attached [pid 6349] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6348] <... clone3 resumed> => {parent_tid=[6349]}, 88) = 6349 [pid 6349] <... rseq resumed>) = 0 [pid 6348] rt_sigprocmask(SIG_SETMASK, [], [pid 6349] set_robust_list(0x7fb72497a9a0, 24 [pid 6348] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6349] <... set_robust_list resumed>) = 0 [pid 6348] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6349] rt_sigprocmask(SIG_SETMASK, [], [pid 6348] <... futex resumed>) = 0 [pid 6349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6348] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6349] memfd_create("syzkaller", 0) = 3 [pid 6349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6345] <... close resumed>) = 0 [pid 6345] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6344] <... futex resumed>) = 0 [pid 6345] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6344] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6345] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6344] <... futex resumed>) = 0 [pid 6345] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6344] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6345] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6345] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6344] <... futex resumed>) = 0 [pid 6345] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6344] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6345] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6345] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6344] <... futex resumed>) = 0 [pid 6345] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6345] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6344] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6345] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6344] exit_group(0 [pid 6345] <... futex resumed>) = ? [pid 6344] <... exit_group resumed>) = ? [pid 6345] +++ exited with 0 +++ [pid 6344] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6344, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6350 attached [pid 6347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6350 [pid 6350] set_robust_list(0x55556c2036a0, 24 [pid 6349] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6350] <... set_robust_list resumed>) = 0 executing program [pid 6350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6350] setpgid(0, 0) = 0 [pid 6350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6350] write(3, "1000", 4) = 4 [pid 6350] close(3) = 0 [pid 6350] write(1, "executing program\n", 18) = 18 [pid 6350] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6350] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6350] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6350] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6350] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6350] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6351]}, 88) = 6351 [pid 6350] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6350] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 6351 attached [pid 6350] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6351] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6351] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6351] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6351] memfd_create("syzkaller", 0) = 3 [pid 6351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6351] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6347] <... write resumed>) = 16777216 [pid 6347] munmap(0x7fb71c400000, 138412032) = 0 [pid 6347] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6347] close(3 [pid 6349] <... write resumed>) = 16777216 [pid 6349] munmap(0x7fb71c400000, 138412032) = 0 [pid 6349] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6349] close(3 [pid 6351] <... write resumed>) = 16777216 [pid 6351] munmap(0x7fb71c400000, 138412032) = 0 [pid 6347] <... close resumed>) = 0 [pid 6351] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6347] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6351] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6347] <... futex resumed>) = 1 [pid 6346] <... futex resumed>) = 0 [pid 6347] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6346] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6347] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6346] <... futex resumed>) = 0 [pid 6347] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6346] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6351] close(3 [pid 6347] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6347] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6346] <... futex resumed>) = 0 [pid 6347] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6346] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6347] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6346] <... futex resumed>) = 0 [pid 6346] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6347] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6346] <... futex resumed>) = 0 [pid 6347] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6346] exit_group(0 [pid 6347] <... futex resumed>) = ? [pid 6346] <... exit_group resumed>) = ? [pid 6347] +++ exited with 0 +++ [pid 6346] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6346, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6352 ./strace-static-x86_64: Process 6352 attached [pid 6352] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6352] setpgid(0, 0) = 0 [pid 6352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6352] write(3, "1000", 4) = 4 [pid 6352] close(3) = 0 [pid 6352] write(1, "executing program\n", 18executing program ) = 18 [pid 6352] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6352] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6352] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6352] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6352] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6352] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6353 attached => {parent_tid=[6353]}, 88) = 6353 [pid 6353] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6352] rt_sigprocmask(SIG_SETMASK, [], [pid 6353] <... rseq resumed>) = 0 [pid 6352] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6353] set_robust_list(0x7fb72497a9a0, 24 [pid 6352] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6353] <... set_robust_list resumed>) = 0 [pid 6352] <... futex resumed>) = 0 [pid 6353] rt_sigprocmask(SIG_SETMASK, [], [pid 6352] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6353] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6353] memfd_create("syzkaller", 0 [pid 6349] <... close resumed>) = 0 [pid 6353] <... memfd_create resumed>) = 3 [pid 6349] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6348] <... futex resumed>) = 0 [pid 6349] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6348] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6348] <... futex resumed>) = 0 [pid 6349] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6348] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6349] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6353] <... mmap resumed>) = 0x7fb71c400000 [pid 6349] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6348] <... futex resumed>) = 0 [pid 6348] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6349] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6348] <... futex resumed>) = 0 [pid 6349] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6348] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6349] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6348] exit_group(0 [pid 6349] <... futex resumed>) = ? [pid 6348] <... exit_group resumed>) = ? [pid 6349] +++ exited with 0 +++ [pid 6348] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6348, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6354 attached , child_tidptr=0x55556c203690) = 6354 [pid 6354] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6354] setpgid(0, 0) = 0 [pid 6354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6354] write(3, "1000", 4) = 4 executing program [pid 6354] close(3) = 0 [pid 6354] write(1, "executing program\n", 18) = 18 [pid 6354] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6354] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6354] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6354] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6354] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6354] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6354] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6355 attached [pid 6355] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6354] <... clone3 resumed> => {parent_tid=[6355]}, 88) = 6355 [pid 6355] <... rseq resumed>) = 0 [pid 6354] rt_sigprocmask(SIG_SETMASK, [], [pid 6355] set_robust_list(0x7fb72497a9a0, 24 [pid 6354] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6355] <... set_robust_list resumed>) = 0 [pid 6354] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6355] rt_sigprocmask(SIG_SETMASK, [], [pid 6354] <... futex resumed>) = 0 [pid 6355] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6354] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6355] memfd_create("syzkaller", 0) = 3 [pid 6355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6351] <... close resumed>) = 0 [pid 6351] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6350] <... futex resumed>) = 0 [pid 6351] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6350] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6351] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6350] <... futex resumed>) = 0 [pid 6350] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6351] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6351] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6350] <... futex resumed>) = 0 [pid 6350] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6351] <... futex resumed>) = 0 [pid 6350] <... futex resumed>) = 1 [pid 6351] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6350] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6351] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6350] exit_group(0) = ? [pid 6351] +++ exited with 0 +++ [pid 6350] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6350, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6356 ./strace-static-x86_64: Process 6356 attached [pid 6356] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6356] setpgid(0, 0) = 0 [pid 6356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6356] write(3, "1000", 4) = 4 [pid 6356] close(3) = 0 executing program [pid 6356] write(1, "executing program\n", 18) = 18 [pid 6356] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6356] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6356] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6356] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6356] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6356] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6357]}, 88) = 6357 [pid 6356] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6356] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6356] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6357 attached [pid 6357] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6357] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6357] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6357] memfd_create("syzkaller", 0 [pid 6353] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6357] <... memfd_create resumed>) = 3 [pid 6355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6353] <... write resumed>) = 16777216 [pid 6353] munmap(0x7fb71c400000, 138412032) = 0 [pid 6353] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6353] close(3 [pid 6355] <... write resumed>) = 16777216 [pid 6355] munmap(0x7fb71c400000, 138412032) = 0 [pid 6355] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6355] close(3 [pid 6357] <... write resumed>) = 16777216 [pid 6357] munmap(0x7fb71c400000, 138412032) = 0 [pid 6357] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6357] close(3 [pid 6353] <... close resumed>) = 0 [pid 6353] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6353] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6352] <... futex resumed>) = 0 [pid 6352] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6353] <... futex resumed>) = 0 [pid 6352] <... futex resumed>) = 1 [pid 6353] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6352] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6353] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6352] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6353] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6352] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6353] <... futex resumed>) = 0 [pid 6352] <... futex resumed>) = 1 [pid 6353] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6352] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6353] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6353] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6352] <... futex resumed>) = 0 [pid 6353] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6352] exit_group(0 [pid 6353] <... futex resumed>) = ? [pid 6352] <... exit_group resumed>) = ? [pid 6353] +++ exited with 0 +++ [pid 6352] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6352, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6358 ./strace-static-x86_64: Process 6358 attached [pid 6358] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6358] setpgid(0, 0) = 0 [pid 6358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6358] write(3, "1000", 4) = 4 [pid 6358] close(3) = 0 executing program [pid 6358] write(1, "executing program\n", 18) = 18 [pid 6358] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6358] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6358] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6358] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6358] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6358] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6358] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6359 attached => {parent_tid=[6359]}, 88) = 6359 [pid 6358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6358] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6358] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6359] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6359] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6359] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6359] memfd_create("syzkaller", 0) = 3 [pid 6359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6355] <... close resumed>) = 0 [pid 6355] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6355] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6354] <... futex resumed>) = 0 [pid 6354] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6354] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6355] <... futex resumed>) = 0 [pid 6355] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6355] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6355] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6354] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6355] <... futex resumed>) = 0 [pid 6354] <... futex resumed>) = 1 [pid 6355] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6354] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6355] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6355] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6354] exit_group(0 [pid 6355] <... futex resumed>) = ? [pid 6354] <... exit_group resumed>) = ? [pid 6355] +++ exited with 0 +++ [pid 6354] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6354, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6360 ./strace-static-x86_64: Process 6360 attached [pid 6360] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6360] setpgid(0, 0) = 0 [pid 6360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6357] <... close resumed>) = 0 [pid 6360] write(3, "1000", 4) = 4 [pid 6360] close(3executing program ) = 0 [pid 6360] write(1, "executing program\n", 18) = 18 [pid 6360] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6360] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6360] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6360] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6360] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6360] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6360] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6361 attached [pid 6361] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6360] <... clone3 resumed> => {parent_tid=[6361]}, 88) = 6361 [pid 6361] <... rseq resumed>) = 0 [pid 6360] rt_sigprocmask(SIG_SETMASK, [], [pid 6361] set_robust_list(0x7fb72497a9a0, 24 [pid 6360] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6361] <... set_robust_list resumed>) = 0 [pid 6360] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6361] rt_sigprocmask(SIG_SETMASK, [], [pid 6360] <... futex resumed>) = 0 [pid 6361] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6361] memfd_create("syzkaller", 0 [pid 6360] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6361] <... memfd_create resumed>) = 3 [pid 6357] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6357] <... futex resumed>) = 1 [pid 6356] <... futex resumed>) = 0 [pid 6359] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6356] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6356] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6357] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6357] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6356] <... futex resumed>) = 0 [pid 6357] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6356] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6357] <... futex resumed>) = 0 [pid 6356] <... futex resumed>) = 1 [pid 6357] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6356] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6357] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6357] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6357] <... futex resumed>) = 0 [pid 6357] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6356] exit_group(0) = ? [pid 6357] <... futex resumed>) = ? [pid 6357] +++ exited with 0 +++ [pid 6356] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6356, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6362 ./strace-static-x86_64: Process 6362 attached [pid 6362] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6362] setpgid(0, 0) = 0 [pid 6362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6362] write(3, "1000", 4) = 4 [pid 6362] close(3) = 0 executing program [pid 6362] write(1, "executing program\n", 18) = 18 [pid 6362] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6362] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6362] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6362] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6362] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6362] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6363 attached [pid 6363] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6362] <... clone3 resumed> => {parent_tid=[6363]}, 88) = 6363 [pid 6363] <... rseq resumed>) = 0 [pid 6362] rt_sigprocmask(SIG_SETMASK, [], [pid 6363] set_robust_list(0x7fb72497a9a0, 24 [pid 6362] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6362] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6362] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6363] <... set_robust_list resumed>) = 0 [pid 6363] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6363] memfd_create("syzkaller", 0) = 3 [pid 6363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6359] <... write resumed>) = 16777216 [pid 6359] munmap(0x7fb71c400000, 138412032 [pid 6363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6359] <... munmap resumed>) = 0 [pid 6359] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6359] close(3 [pid 6361] <... write resumed>) = 16777216 [pid 6361] munmap(0x7fb71c400000, 138412032) = 0 [pid 6361] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6361] close(3 [pid 6359] <... close resumed>) = 0 [pid 6359] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6358] <... futex resumed>) = 0 [pid 6359] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6358] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6358] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6359] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6359] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6358] <... futex resumed>) = 0 [pid 6359] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6358] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6359] <... futex resumed>) = 0 [pid 6358] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6359] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6359] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6358] <... futex resumed>) = 0 [pid 6358] exit_group(0) = ? [pid 6359] +++ exited with 0 +++ [pid 6358] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6358, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6364 ./strace-static-x86_64: Process 6364 attached [pid 6364] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6364] setpgid(0, 0) = 0 [pid 6364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6364] write(3, "1000", 4) = 4 [pid 6364] close(3) = 0 executing program [pid 6364] write(1, "executing program\n", 18) = 18 [pid 6364] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6364] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6364] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6364] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6364] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6364] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6365 attached => {parent_tid=[6365]}, 88) = 6365 [pid 6364] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6364] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6365] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6364] <... futex resumed>) = 0 [pid 6365] <... rseq resumed>) = 0 [pid 6364] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6365] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6365] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6365] memfd_create("syzkaller", 0) = 3 [pid 6365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6363] <... write resumed>) = 16777216 [pid 6363] munmap(0x7fb71c400000, 138412032) = 0 [pid 6363] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6363] close(3 [pid 6361] <... close resumed>) = 0 [pid 6361] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6361] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6360] <... futex resumed>) = 0 [pid 6360] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6361] <... futex resumed>) = 0 [pid 6361] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6361] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6361] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6360] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6360] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6361] <... futex resumed>) = 0 [pid 6360] <... futex resumed>) = 1 [pid 6361] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6360] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6361] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6361] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6360] <... futex resumed>) = 0 [pid 6361] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6360] exit_group(0 [pid 6361] <... futex resumed>) = ? [pid 6360] <... exit_group resumed>) = ? [pid 6361] +++ exited with 0 +++ [pid 6360] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6360, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6366 ./strace-static-x86_64: Process 6366 attached [pid 6366] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6366] setpgid(0, 0) = 0 [pid 6366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6366] write(3, "1000", 4) = 4 [pid 6366] close(3) = 0 [pid 6366] write(1, "executing program\n", 18executing program ) = 18 [pid 6366] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6366] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6366] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6366] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6366] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6366] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6366] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 6367 attached [pid 6366] <... clone3 resumed> => {parent_tid=[6367]}, 88) = 6367 [pid 6366] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6366] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6366] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6367] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6367] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6367] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6367] memfd_create("syzkaller", 0) = 3 [pid 6367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6363] <... close resumed>) = 0 [pid 6363] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6362] <... futex resumed>) = 0 [pid 6363] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6362] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6362] <... futex resumed>) = 0 [pid 6363] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6362] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6363] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6363] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6362] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6363] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6362] <... futex resumed>) = 0 [pid 6363] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6362] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6363] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6362] exit_group(0 [pid 6363] <... futex resumed>) = ? [pid 6362] <... exit_group resumed>) = ? [pid 6363] +++ exited with 0 +++ [pid 6362] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6362, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6368 ./strace-static-x86_64: Process 6368 attached [pid 6367] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6368] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6368] setpgid(0, 0) = 0 [pid 6368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6368] write(3, "1000", 4) = 4 [pid 6368] close(3) = 0 [pid 6368] write(1, "executing program\n", 18executing program ) = 18 [pid 6368] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6368] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6368] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6368] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6368] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6368] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6369]}, 88) = 6369 ./strace-static-x86_64: Process 6369 attached [pid 6369] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6368] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6368] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6368] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6369] <... rseq resumed>) = 0 [pid 6369] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6369] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6369] memfd_create("syzkaller", 0) = 3 [pid 6369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6365] <... write resumed>) = 16777216 [pid 6365] munmap(0x7fb71c400000, 138412032) = 0 [pid 6365] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6365] close(3 [pid 6369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6367] <... write resumed>) = 16777216 [pid 6367] munmap(0x7fb71c400000, 138412032) = 0 [pid 6367] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6367] close(3 [pid 6365] <... close resumed>) = 0 [pid 6365] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6364] <... futex resumed>) = 0 [pid 6365] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6364] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6365] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6364] <... futex resumed>) = 0 [pid 6365] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6364] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6365] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6365] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6364] <... futex resumed>) = 0 [pid 6365] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6364] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6365] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6364] <... futex resumed>) = 0 [pid 6365] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6364] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6365] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6365] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6364] <... futex resumed>) = 0 [pid 6365] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6364] exit_group(0 [pid 6365] <... futex resumed>) = ? [pid 6364] <... exit_group resumed>) = ? [pid 6365] +++ exited with 0 +++ [pid 6364] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6364, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6370 attached , child_tidptr=0x55556c203690) = 6370 [pid 6370] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6370] setpgid(0, 0) = 0 [pid 6370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6370] write(3, "1000", 4) = 4 [pid 6370] close(3) = 0 executing program [pid 6370] write(1, "executing program\n", 18) = 18 [pid 6370] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6370] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6370] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6370] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6370] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6371 attached [pid 6371] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6370] <... clone3 resumed> => {parent_tid=[6371]}, 88) = 6371 [pid 6371] <... rseq resumed>) = 0 [pid 6370] rt_sigprocmask(SIG_SETMASK, [], [pid 6371] set_robust_list(0x7fb72497a9a0, 24 [pid 6370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6371] <... set_robust_list resumed>) = 0 [pid 6370] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6371] rt_sigprocmask(SIG_SETMASK, [], [pid 6370] <... futex resumed>) = 0 [pid 6370] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6371] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6371] memfd_create("syzkaller", 0) = 3 [pid 6371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6369] <... write resumed>) = 16777216 [pid 6369] munmap(0x7fb71c400000, 138412032 [pid 6367] <... close resumed>) = 0 [pid 6367] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6366] <... futex resumed>) = 0 [pid 6367] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6366] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6366] <... futex resumed>) = 0 [pid 6367] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6366] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6367] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6369] <... munmap resumed>) = 0 [pid 6367] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6369] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6367] <... futex resumed>) = 1 [pid 6366] <... futex resumed>) = 0 [pid 6369] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6367] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6366] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6366] <... futex resumed>) = 0 [pid 6367] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6366] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6369] close(3 [pid 6367] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6367] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6366] <... futex resumed>) = 0 [pid 6366] exit_group(0) = ? [pid 6367] +++ exited with 0 +++ [pid 6366] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6366, si_uid=0, si_status=0, si_utime=0, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6372 attached , child_tidptr=0x55556c203690) = 6372 [pid 6372] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6372] setpgid(0, 0) = 0 executing program [pid 6372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6372] write(3, "1000", 4) = 4 [pid 6372] close(3) = 0 [pid 6372] write(1, "executing program\n", 18) = 18 [pid 6372] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6372] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6372] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6372] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6372] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6372] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6373 attached => {parent_tid=[6373]}, 88) = 6373 [pid 6373] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6372] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6372] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6372] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6373] <... rseq resumed>) = 0 [pid 6373] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6373] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6373] memfd_create("syzkaller", 0) = 3 [pid 6373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6369] <... close resumed>) = 0 [pid 6369] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6368] <... futex resumed>) = 0 [pid 6368] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6368] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6369] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6369] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6368] <... futex resumed>) = 0 [pid 6368] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6368] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6369] <... futex resumed>) = 1 [pid 6369] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6369] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6368] <... futex resumed>) = 0 [pid 6368] exit_group(0) = ? [pid 6369] <... futex resumed>) = ? [pid 6369] +++ exited with 0 +++ [pid 6368] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6368, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6374 attached [pid 6374] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6374 [pid 6374] setpgid(0, 0) = 0 [pid 6374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6374] write(3, "1000", 4) = 4 [pid 6374] close(3) = 0 executing program [pid 6374] write(1, "executing program\n", 18) = 18 [pid 6374] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6374] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6374] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6374] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6374] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6374] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6375 attached => {parent_tid=[6375]}, 88) = 6375 [pid 6374] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6374] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6375] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6374] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6375] <... rseq resumed>) = 0 [pid 6375] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6375] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6375] memfd_create("syzkaller", 0) = 3 [pid 6375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6371] <... write resumed>) = 16777216 [pid 6371] munmap(0x7fb71c400000, 138412032 [pid 6375] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6371] <... munmap resumed>) = 0 [pid 6373] <... write resumed>) = 16777216 [pid 6371] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6373] munmap(0x7fb71c400000, 138412032 [pid 6371] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6371] close(3 [pid 6373] <... munmap resumed>) = 0 [pid 6373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6373] close(3) = 0 [pid 6373] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6372] <... futex resumed>) = 0 [pid 6372] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6372] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6373] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6373] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6372] <... futex resumed>) = 0 [pid 6372] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6372] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6373] <... futex resumed>) = 1 [pid 6373] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6373] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6373] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6372] <... futex resumed>) = 0 [pid 6372] exit_group(0) = ? [pid 6375] <... write resumed>) = 16777216 [pid 6373] <... futex resumed>) = ? [pid 6375] munmap(0x7fb71c400000, 138412032 [pid 6373] +++ exited with 0 +++ [pid 6372] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6372, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6376 attached [pid 6371] <... close resumed>) = 0 [pid 6376] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6376] setpgid(0, 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6376 [pid 6376] <... setpgid resumed>) = 0 [pid 6376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6375] <... munmap resumed>) = 0 [pid 6371] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6375] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6376] write(3, "1000", 4 [pid 6371] <... futex resumed>) = 1 [pid 6370] <... futex resumed>) = 0 [pid 6376] <... write resumed>) = 4 [pid 6375] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6371] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6370] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6376] close(3 executing program [pid 6375] close(3 [pid 6371] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6370] <... futex resumed>) = 0 [pid 6370] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6376] <... close resumed>) = 0 [pid 6371] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6376] write(1, "executing program\n", 18 [pid 6371] <... futex resumed>) = 1 [pid 6370] <... futex resumed>) = 0 [pid 6376] <... write resumed>) = 18 [pid 6371] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6376] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6370] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6376] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6371] <... futex resumed>) = 0 [pid 6370] <... futex resumed>) = 1 [pid 6376] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6371] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6370] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6376] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6371] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6376] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6371] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6371] <... futex resumed>) = 1 [pid 6370] <... futex resumed>) = 0 [pid 6370] exit_group(0 [pid 6376] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6370] <... exit_group resumed>) = ? [pid 6371] +++ exited with 0 +++ [pid 6376] <... mprotect resumed>) = 0 [pid 6376] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6370] +++ exited with 0 +++ [pid 6376] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6370, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 6376] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6377 attached => {parent_tid=[6377]}, 88) = 6377 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6376] rt_sigprocmask(SIG_SETMASK, [], [pid 6377] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6376] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6377] <... rseq resumed>) = 0 [pid 6376] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6377] set_robust_list(0x7fb72497a9a0, 24 [pid 6376] <... futex resumed>) = 0 [pid 6377] <... set_robust_list resumed>) = 0 [pid 6376] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6377] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6378 attached NULL, 8) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6378 [pid 6378] set_robust_list(0x55556c2036a0, 24 [pid 6377] memfd_create("syzkaller", 0 [pid 6378] <... set_robust_list resumed>) = 0 [pid 6378] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6377] <... memfd_create resumed>) = 3 [pid 6378] <... prctl resumed>) = 0 [pid 6378] setpgid(0, 0 [pid 6377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6378] <... setpgid resumed>) = 0 [pid 6377] <... mmap resumed>) = 0x7fb71c400000 [pid 6378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6378] write(3, "1000", 4) = 4 [pid 6378] close(3executing program ) = 0 [pid 6378] write(1, "executing program\n", 18) = 18 [pid 6378] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6378] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6378] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6378] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6378] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6378] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6379]}, 88) = 6379 [pid 6378] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6378] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 6379 attached [pid 6378] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6379] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6379] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6379] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6379] memfd_create("syzkaller", 0) = 3 [pid 6379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6377] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6375] <... close resumed>) = 0 [pid 6375] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6374] <... futex resumed>) = 0 [pid 6374] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6375] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6374] <... futex resumed>) = 0 [pid 6375] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6375] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6374] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6374] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6374] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6375] <... futex resumed>) = 1 [pid 6374] <... futex resumed>) = 0 [pid 6374] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 6375] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6375] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6374] <... futex resumed>) = 0 [pid 6375] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6374] exit_group(0 [pid 6375] <... futex resumed>) = ? [pid 6374] <... exit_group resumed>) = ? [pid 6375] +++ exited with 0 +++ [pid 6374] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6374, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6380 ./strace-static-x86_64: Process 6380 attached [pid 6379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6380] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6380] setpgid(0, 0) = 0 [pid 6380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6380] write(3, "1000", 4) = 4 [pid 6380] close(3) = 0 executing program [pid 6380] write(1, "executing program\n", 18) = 18 [pid 6380] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6380] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6380] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6380] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6380] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6380] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6381 attached [pid 6381] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6380] <... clone3 resumed> => {parent_tid=[6381]}, 88) = 6381 [pid 6381] <... rseq resumed>) = 0 [pid 6380] rt_sigprocmask(SIG_SETMASK, [], [pid 6381] set_robust_list(0x7fb72497a9a0, 24 [pid 6380] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6381] <... set_robust_list resumed>) = 0 [pid 6380] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6381] rt_sigprocmask(SIG_SETMASK, [], [pid 6380] <... futex resumed>) = 0 [pid 6381] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6380] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6381] memfd_create("syzkaller", 0) = 3 [pid 6381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6377] <... write resumed>) = 16777216 [pid 6377] munmap(0x7fb71c400000, 138412032) = 0 [pid 6377] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6377] close(3 [pid 6379] <... write resumed>) = 16777216 [pid 6379] munmap(0x7fb71c400000, 138412032 [pid 6381] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6379] <... munmap resumed>) = 0 [pid 6379] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6379] close(3 [pid 6377] <... close resumed>) = 0 [pid 6377] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6376] <... futex resumed>) = 0 [pid 6377] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6376] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6377] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6376] <... futex resumed>) = 0 [pid 6377] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6377] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6377] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6376] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6376] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6377] <... futex resumed>) = 0 [pid 6376] <... futex resumed>) = 1 [pid 6376] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6377] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6377] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6376] <... futex resumed>) = 0 [pid 6377] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6376] exit_group(0 [pid 6377] <... futex resumed>) = ? [pid 6376] <... exit_group resumed>) = ? [pid 6377] +++ exited with 0 +++ [pid 6376] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6376, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6382 attached , child_tidptr=0x55556c203690) = 6382 [pid 6382] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6382] setpgid(0, 0) = 0 [pid 6382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6382] write(3, "1000", 4) = 4 executing program [pid 6382] close(3) = 0 [pid 6382] write(1, "executing program\n", 18) = 18 [pid 6382] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6382] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6382] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6382] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6382] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6382] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6383 attached [pid 6383] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6382] <... clone3 resumed> => {parent_tid=[6383]}, 88) = 6383 [pid 6383] <... rseq resumed>) = 0 [pid 6382] rt_sigprocmask(SIG_SETMASK, [], [pid 6383] set_robust_list(0x7fb72497a9a0, 24 [pid 6382] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6383] <... set_robust_list resumed>) = 0 [pid 6382] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6383] rt_sigprocmask(SIG_SETMASK, [], [pid 6382] <... futex resumed>) = 0 [pid 6383] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6382] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6383] memfd_create("syzkaller", 0) = 3 [pid 6383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6379] <... close resumed>) = 0 [pid 6379] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6378] <... futex resumed>) = 0 [pid 6379] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6378] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6378] <... futex resumed>) = 0 [pid 6379] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6378] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6379] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6379] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6378] <... futex resumed>) = 0 [pid 6379] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6378] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6378] <... futex resumed>) = 0 [pid 6378] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6379] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6379] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6378] <... futex resumed>) = 0 [pid 6379] <... futex resumed>) = 1 [pid 6378] exit_group(0 [pid 6379] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6378] <... exit_group resumed>) = ? [pid 6379] +++ exited with 0 +++ [pid 6378] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6378, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=42 /* 0.42 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6384 attached , child_tidptr=0x55556c203690) = 6384 [pid 6384] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6384] setpgid(0, 0) = 0 [pid 6384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6384] write(3, "1000", 4) = 4 [pid 6384] close(3) = 0 executing program [pid 6384] write(1, "executing program\n", 18) = 18 [pid 6384] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6384] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6384] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6384] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6384] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6384] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6384] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6385 attached [pid 6385] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6384] <... clone3 resumed> => {parent_tid=[6385]}, 88) = 6385 [pid 6385] <... rseq resumed>) = 0 [pid 6384] rt_sigprocmask(SIG_SETMASK, [], [pid 6385] set_robust_list(0x7fb72497a9a0, 24 [pid 6384] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6385] <... set_robust_list resumed>) = 0 [pid 6384] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6385] rt_sigprocmask(SIG_SETMASK, [], [pid 6384] <... futex resumed>) = 0 [pid 6385] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6384] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6385] memfd_create("syzkaller", 0) = 3 [pid 6385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6381] <... write resumed>) = 16777216 [pid 6383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6381] munmap(0x7fb71c400000, 138412032) = 0 [pid 6381] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6381] close(3 [pid 6385] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6381] <... close resumed>) = 0 [pid 6381] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6380] <... futex resumed>) = 0 [pid 6381] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6380] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6381] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6380] <... futex resumed>) = 0 [pid 6381] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6380] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6381] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6381] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6380] <... futex resumed>) = 0 [pid 6381] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6380] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6381] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6380] <... futex resumed>) = 0 [pid 6380] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6381] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6380] <... futex resumed>) = 0 [pid 6381] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6380] exit_group(0 [pid 6381] <... futex resumed>) = ? [pid 6380] <... exit_group resumed>) = ? [pid 6381] +++ exited with 0 +++ [pid 6380] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6380, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6386 attached , child_tidptr=0x55556c203690) = 6386 [pid 6386] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6386] setpgid(0, 0) = 0 [pid 6386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6386] write(3, "1000", 4) = 4 [pid 6386] close(3) = 0 [pid 6386] write(1, "executing program\n", 18) = 18 [pid 6386] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6386] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6386] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6386] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6386] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6386] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6386] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6387 attached => {parent_tid=[6387]}, 88) = 6387 [pid 6387] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6386] rt_sigprocmask(SIG_SETMASK, [], [pid 6387] <... rseq resumed>) = 0 [pid 6386] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6387] set_robust_list(0x7fb72497a9a0, 24 [pid 6386] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6387] <... set_robust_list resumed>) = 0 [pid 6386] <... futex resumed>) = 0 [pid 6387] rt_sigprocmask(SIG_SETMASK, [], [pid 6386] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6387] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6387] memfd_create("syzkaller", 0) = 3 [pid 6387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6383] <... write resumed>) = 16777216 [pid 6383] munmap(0x7fb71c400000, 138412032) = 0 [pid 6383] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6383] close(3 [pid 6385] <... write resumed>) = 16777216 [pid 6385] munmap(0x7fb71c400000, 138412032) = 0 [pid 6385] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6385] close(3 [pid 6387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6383] <... close resumed>) = 0 [pid 6383] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6382] <... futex resumed>) = 0 [pid 6383] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6382] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6383] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6382] <... futex resumed>) = 0 [pid 6383] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6382] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6383] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6383] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6382] <... futex resumed>) = 0 [pid 6383] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6382] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6383] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6382] <... futex resumed>) = 0 [pid 6383] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6382] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6383] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6383] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6382] <... futex resumed>) = 0 [pid 6383] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6382] exit_group(0 [pid 6383] <... futex resumed>) = ? [pid 6382] <... exit_group resumed>) = ? [pid 6383] +++ exited with 0 +++ [pid 6382] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6382, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6388 attached , child_tidptr=0x55556c203690) = 6388 [pid 6388] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6388] setpgid(0, 0) = 0 [pid 6388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6388] write(3, "1000", 4) = 4 executing program [pid 6388] close(3) = 0 [pid 6388] write(1, "executing program\n", 18) = 18 [pid 6388] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6388] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6388] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6388] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6388] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6388] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6389 attached [pid 6389] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6388] <... clone3 resumed> => {parent_tid=[6389]}, 88) = 6389 [pid 6389] <... rseq resumed>) = 0 [pid 6388] rt_sigprocmask(SIG_SETMASK, [], [pid 6389] set_robust_list(0x7fb72497a9a0, 24 [pid 6388] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6389] <... set_robust_list resumed>) = 0 [pid 6388] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6388] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6389] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6389] memfd_create("syzkaller", 0) = 3 [pid 6389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6385] <... close resumed>) = 0 [pid 6385] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6384] <... futex resumed>) = 0 [pid 6385] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6384] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6384] <... futex resumed>) = 0 [pid 6385] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6384] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6385] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6385] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6384] <... futex resumed>) = 0 [pid 6385] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6384] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6384] <... futex resumed>) = 0 [pid 6385] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6384] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6385] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6385] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6384] <... futex resumed>) = 0 [pid 6385] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6384] exit_group(0 [pid 6385] <... futex resumed>) = ? [pid 6384] <... exit_group resumed>) = ? [pid 6385] +++ exited with 0 +++ [pid 6384] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6384, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6390 attached , child_tidptr=0x55556c203690) = 6390 [pid 6390] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6390] setpgid(0, 0) = 0 [pid 6390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6390] write(3, "1000", 4) = 4 [pid 6390] close(3executing program ) = 0 [pid 6390] write(1, "executing program\n", 18) = 18 [pid 6390] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6390] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6390] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6390] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6390] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6390] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6390] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6391 attached [pid 6391] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6390] <... clone3 resumed> => {parent_tid=[6391]}, 88) = 6391 [pid 6391] <... rseq resumed>) = 0 [pid 6390] rt_sigprocmask(SIG_SETMASK, [], [pid 6389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6391] set_robust_list(0x7fb72497a9a0, 24 [pid 6390] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6391] <... set_robust_list resumed>) = 0 [pid 6390] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6391] rt_sigprocmask(SIG_SETMASK, [], [pid 6390] <... futex resumed>) = 0 [pid 6391] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6390] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6391] memfd_create("syzkaller", 0) = 3 [pid 6391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6387] <... write resumed>) = 16777216 [pid 6387] munmap(0x7fb71c400000, 138412032) = 0 [pid 6387] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6387] close(3 [pid 6391] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6387] <... close resumed>) = 0 [pid 6387] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6389] <... write resumed>) = 16777216 [pid 6387] <... futex resumed>) = 1 [pid 6386] <... futex resumed>) = 0 [pid 6387] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6386] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6389] munmap(0x7fb71c400000, 138412032 [pid 6387] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6386] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6387] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6386] <... futex resumed>) = 0 [pid 6387] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6386] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6387] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6386] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6387] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6387] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6386] <... futex resumed>) = 0 [pid 6387] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6386] exit_group(0 [pid 6387] <... futex resumed>) = ? [pid 6386] <... exit_group resumed>) = ? [pid 6387] +++ exited with 0 +++ [pid 6389] <... munmap resumed>) = 0 [pid 6386] +++ exited with 0 +++ [pid 6389] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6386, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 6389] close(3 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6392 attached , child_tidptr=0x55556c203690) = 6392 [pid 6392] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6392] setpgid(0, 0) = 0 [pid 6392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6392] write(3, "1000", 4) = 4 [pid 6392] close(3) = 0 [pid 6392] write(1, "executing program\n", 18executing program ) = 18 [pid 6392] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6392] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6392] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6392] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6392] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6392] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6393 attached [pid 6393] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6392] <... clone3 resumed> => {parent_tid=[6393]}, 88) = 6393 [pid 6393] <... rseq resumed>) = 0 [pid 6392] rt_sigprocmask(SIG_SETMASK, [], [pid 6393] set_robust_list(0x7fb72497a9a0, 24 [pid 6392] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6393] <... set_robust_list resumed>) = 0 [pid 6392] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6393] rt_sigprocmask(SIG_SETMASK, [], [pid 6392] <... futex resumed>) = 0 [pid 6393] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6392] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6393] memfd_create("syzkaller", 0) = 3 [pid 6393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6391] <... write resumed>) = 16777216 [pid 6391] munmap(0x7fb71c400000, 138412032) = 0 [pid 6391] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6391] close(3 [pid 6389] <... close resumed>) = 0 [pid 6389] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6388] <... futex resumed>) = 0 [pid 6389] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6388] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6389] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6388] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6389] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6389] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6388] <... futex resumed>) = 0 [pid 6389] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6388] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6389] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6388] <... futex resumed>) = 0 [pid 6389] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6388] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6389] <... futex resumed>) = 0 [pid 6388] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6389] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6388] exit_group(0 [pid 6389] <... futex resumed>) = ? [pid 6388] <... exit_group resumed>) = ? [pid 6389] +++ exited with 0 +++ [pid 6388] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6388, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6394 attached , child_tidptr=0x55556c203690) = 6394 [pid 6393] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6394] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6394] setpgid(0, 0) = 0 [pid 6394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6394] write(3, "1000", 4executing program ) = 4 [pid 6394] close(3) = 0 [pid 6394] write(1, "executing program\n", 18) = 18 [pid 6394] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6394] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6394] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6394] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6394] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6394] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6395 attached => {parent_tid=[6395]}, 88) = 6395 [pid 6394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6394] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6394] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6395] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6395] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6395] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6395] memfd_create("syzkaller", 0) = 3 [pid 6395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6391] <... close resumed>) = 0 [pid 6391] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6390] <... futex resumed>) = 0 [pid 6391] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6390] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6391] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6390] <... futex resumed>) = 0 [pid 6391] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6390] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6391] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6391] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6390] <... futex resumed>) = 0 [pid 6391] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6390] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6391] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6390] <... futex resumed>) = 0 [pid 6390] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6391] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6391] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6390] <... futex resumed>) = 0 [pid 6391] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6390] exit_group(0 [pid 6391] <... futex resumed>) = ? [pid 6390] <... exit_group resumed>) = ? [pid 6391] +++ exited with 0 +++ [pid 6390] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6390, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6396 attached , child_tidptr=0x55556c203690) = 6396 [pid 6396] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6396] setpgid(0, 0) = 0 [pid 6396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6396] write(3, "1000", 4) = 4 [pid 6396] close(3) = 0 executing program [pid 6396] write(1, "executing program\n", 18) = 18 [pid 6396] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6396] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6396] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6396] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6396] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6396] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6397 attached [pid 6397] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6396] <... clone3 resumed> => {parent_tid=[6397]}, 88) = 6397 [pid 6397] <... rseq resumed>) = 0 [pid 6397] set_robust_list(0x7fb72497a9a0, 24 [pid 6396] rt_sigprocmask(SIG_SETMASK, [], [pid 6397] <... set_robust_list resumed>) = 0 [pid 6395] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6396] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6397] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6396] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6397] memfd_create("syzkaller", 0 [pid 6396] <... futex resumed>) = 0 [pid 6397] <... memfd_create resumed>) = 3 [pid 6396] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6393] <... write resumed>) = 16777216 [pid 6393] munmap(0x7fb71c400000, 138412032) = 0 [pid 6397] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6393] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6393] close(3) = 0 [pid 6395] <... write resumed>) = 16777216 [pid 6395] munmap(0x7fb71c400000, 138412032 [pid 6393] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6392] <... futex resumed>) = 0 [pid 6393] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6392] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6393] <... futex resumed>) = 0 [pid 6392] <... futex resumed>) = 1 [pid 6393] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6392] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6393] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6395] <... munmap resumed>) = 0 [pid 6393] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6395] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6393] <... futex resumed>) = 1 [pid 6392] <... futex resumed>) = 0 [pid 6393] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6392] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6393] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6392] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6393] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6392] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6393] <... futex resumed>) = 0 [pid 6392] exit_group(0) = ? [pid 6395] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6395] close(3 [pid 6397] <... write resumed>) = 16777216 [pid 6393] +++ exited with 0 +++ [pid 6392] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6392, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6398 attached [pid 6398] set_robust_list(0x55556c2036a0, 24 [pid 6397] munmap(0x7fb71c400000, 138412032 [pid 6398] <... set_robust_list resumed>) = 0 [pid 6398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6398 [pid 6398] setpgid(0, 0 [pid 6397] <... munmap resumed>) = 0 [pid 6398] <... setpgid resumed>) = 0 [pid 6398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6397] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6398] <... openat resumed>) = 3 [pid 6397] close(3executing program [pid 6398] write(3, "1000", 4) = 4 [pid 6398] close(3) = 0 [pid 6398] write(1, "executing program\n", 18) = 18 [pid 6398] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6398] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6398] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6398] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6398] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6398] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6399 attached => {parent_tid=[6399]}, 88) = 6399 [pid 6398] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6398] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6398] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6399] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6399] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6399] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6399] memfd_create("syzkaller", 0) = 3 [pid 6399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6395] <... close resumed>) = 0 [pid 6395] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6394] <... futex resumed>) = 0 [pid 6395] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6394] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6395] <... futex resumed>) = 0 [pid 6394] <... futex resumed>) = 1 [pid 6395] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6394] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6395] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6395] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6394] <... futex resumed>) = 0 [pid 6395] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6394] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6395] <... futex resumed>) = 0 [pid 6394] <... futex resumed>) = 1 [pid 6395] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6394] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6395] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6395] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6394] <... futex resumed>) = 0 [pid 6395] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6394] exit_group(0 [pid 6395] <... futex resumed>) = ? [pid 6394] <... exit_group resumed>) = ? [pid 6395] +++ exited with 0 +++ [pid 6394] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6394, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6400 [pid 6397] <... close resumed>) = 0 ./strace-static-x86_64: Process 6400 attached [pid 6399] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6397] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6400] set_robust_list(0x55556c2036a0, 24 [pid 6397] <... futex resumed>) = 1 [pid 6396] <... futex resumed>) = 0 [pid 6400] <... set_robust_list resumed>) = 0 [pid 6397] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6396] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6400] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6396] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6397] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6400] <... prctl resumed>) = 0 [pid 6397] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6400] setpgid(0, 0 [pid 6397] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6396] <... futex resumed>) = 0 [pid 6400] <... setpgid resumed>) = 0 [pid 6397] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6396] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6396] <... futex resumed>) = 0 [pid 6397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6396] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6397] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6400] <... openat resumed>) = 3 [pid 6397] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6397] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6396] <... futex resumed>) = 0 [pid 6400] write(3, "1000", 4 [pid 6397] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6400] <... write resumed>) = 4 [pid 6396] exit_group(0 [pid 6400] close(3executing program [pid 6397] <... futex resumed>) = ? [pid 6396] <... exit_group resumed>) = ? [pid 6400] <... close resumed>) = 0 [pid 6400] write(1, "executing program\n", 18) = 18 [pid 6400] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6400] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6400] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6400] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6400] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6400] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6400] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6401 attached [pid 6397] +++ exited with 0 +++ [pid 6396] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6396, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6400] <... clone3 resumed> => {parent_tid=[6401]}, 88) = 6401 [pid 6401] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6401] <... rseq resumed>) = 0 [pid 6400] rt_sigprocmask(SIG_SETMASK, [], [pid 6401] set_robust_list(0x7fb72497a9a0, 24 [pid 6400] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6401] <... set_robust_list resumed>) = 0 [pid 6400] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6401] rt_sigprocmask(SIG_SETMASK, [], [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6401] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6400] <... futex resumed>) = 0 [pid 6401] memfd_create("syzkaller", 0 [pid 6400] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6401] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 6402 attached [pid 6401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6402] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6402 [pid 6402] <... set_robust_list resumed>) = 0 [pid 6402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6402] setpgid(0, 0) = 0 [pid 6402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6402] write(3, "1000", 4) = 4 [pid 6402] close(3executing program ) = 0 [pid 6402] write(1, "executing program\n", 18) = 18 [pid 6402] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6402] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6402] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6402] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6402] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6402] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6402] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6403 attached [pid 6403] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6402] <... clone3 resumed> => {parent_tid=[6403]}, 88) = 6403 [pid 6403] <... rseq resumed>) = 0 [pid 6402] rt_sigprocmask(SIG_SETMASK, [], [pid 6403] set_robust_list(0x7fb72497a9a0, 24 [pid 6402] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6403] <... set_robust_list resumed>) = 0 [pid 6402] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6403] rt_sigprocmask(SIG_SETMASK, [], [pid 6402] <... futex resumed>) = 0 [pid 6403] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6402] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6403] memfd_create("syzkaller", 0) = 3 [pid 6403] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6401] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6399] <... write resumed>) = 16777216 [pid 6399] munmap(0x7fb71c400000, 138412032 [pid 6403] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6399] <... munmap resumed>) = 0 [pid 6399] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6399] close(3 [pid 6401] <... write resumed>) = 16777216 [pid 6401] munmap(0x7fb71c400000, 138412032) = 0 [pid 6401] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6401] close(3 [pid 6403] <... write resumed>) = 16777216 [pid 6403] munmap(0x7fb71c400000, 138412032 [pid 6399] <... close resumed>) = 0 [pid 6403] <... munmap resumed>) = 0 [pid 6399] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6403] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6399] <... futex resumed>) = 1 [pid 6398] <... futex resumed>) = 0 [pid 6403] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6399] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6398] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6399] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6398] <... futex resumed>) = 0 [pid 6403] close(3 [pid 6399] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6398] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6399] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6399] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6398] <... futex resumed>) = 0 [pid 6399] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6398] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6399] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6398] <... futex resumed>) = 0 [pid 6399] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6398] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6399] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6399] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6398] <... futex resumed>) = 0 [pid 6399] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6398] exit_group(0 [pid 6399] <... futex resumed>) = ? [pid 6398] <... exit_group resumed>) = ? [pid 6399] +++ exited with 0 +++ [pid 6398] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6398, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=39 /* 0.39 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6404 attached [pid 6404] set_robust_list(0x55556c2036a0, 24 [pid 6401] <... close resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6404 [pid 6404] <... set_robust_list resumed>) = 0 executing program [pid 6404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6404] setpgid(0, 0) = 0 [pid 6404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6404] write(3, "1000", 4) = 4 [pid 6404] close(3) = 0 [pid 6404] write(1, "executing program\n", 18) = 18 [pid 6404] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6404] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6404] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6404] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6404] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6404] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6404] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6405]}, 88) = 6405 [pid 6404] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6404] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6404] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6401] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6405 attached [pid 6405] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6401] <... futex resumed>) = 1 [pid 6400] <... futex resumed>) = 0 [pid 6405] <... rseq resumed>) = 0 [pid 6400] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6405] set_robust_list(0x7fb72497a9a0, 24 [pid 6401] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6400] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6405] <... set_robust_list resumed>) = 0 [pid 6401] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6405] rt_sigprocmask(SIG_SETMASK, [], [pid 6401] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6405] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6405] memfd_create("syzkaller", 0 [pid 6401] <... futex resumed>) = 1 [pid 6400] <... futex resumed>) = 0 [pid 6401] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6400] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6401] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6405] <... memfd_create resumed>) = 3 [pid 6401] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6400] <... futex resumed>) = 0 [pid 6405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6401] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6400] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6405] <... mmap resumed>) = 0x7fb71c400000 [pid 6401] <... futex resumed>) = 0 [pid 6400] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6401] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6400] exit_group(0) = ? [pid 6401] <... futex resumed>) = ? [pid 6401] +++ exited with 0 +++ [pid 6400] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6400, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6403] <... close resumed>) = 0 [pid 6403] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6402] <... futex resumed>) = 0 [pid 6403] <... futex resumed>) = 1 [pid 6402] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6403] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6402] <... futex resumed>) = 0 [pid 6403] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6402] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6403] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6402] <... futex resumed>) = 0 [pid 6403] <... futex resumed>) = 1 [pid 6402] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6403] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6402] <... futex resumed>) = 0 [pid 6402] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6403] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6403] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6403] <... futex resumed>) = 1 [pid 6402] <... futex resumed>) = 0 [pid 6403] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6402] exit_group(0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6403] <... futex resumed>) = ? [pid 6402] <... exit_group resumed>) = ? [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6403] +++ exited with 0 +++ [pid 6402] +++ exited with 0 +++ ./strace-static-x86_64: Process 6406 attached [pid 6406] set_robust_list(0x55556c2036a0, 24 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6402, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6406 [pid 6406] <... set_robust_list resumed>) = 0 [pid 6406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6406] setpgid(0, 0) = 0 [pid 6406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6406] <... openat resumed>) = 3 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6407 attached , child_tidptr=0x55556c203690) = 6407 [pid 6406] write(3, "1000", 4 [pid 6407] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6406] <... write resumed>) = 4 [pid 6407] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6406] close(3 [pid 6407] <... prctl resumed>) = 0 [pid 6407] setpgid(0, 0 [pid 6406] <... close resumed>) = 0 [pid 6407] <... setpgid resumed>) = 0 [pid 6406] write(1, "executing program\n", 18executing program [pid 6407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6406] <... write resumed>) = 18 [pid 6406] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6406] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6407] <... openat resumed>) = 3 [pid 6406] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6407] write(3, "1000", 4 [pid 6406] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6407] <... write resumed>) = 4 [pid 6406] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6407] close(3 [pid 6406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6407] <... close resumed>) = 0 [pid 6406] <... mmap resumed>) = 0x7fb72495a000 executing program [pid 6407] write(1, "executing program\n", 18 [pid 6406] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6407] <... write resumed>) = 18 [pid 6406] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6407] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6406] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6407] <... futex resumed>) = 0 [pid 6406] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6407] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, ./strace-static-x86_64: Process 6408 attached NULL, 8) = 0 [pid 6407] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6408] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6407] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6406] <... clone3 resumed> => {parent_tid=[6408]}, 88) = 6408 [pid 6408] <... rseq resumed>) = 0 [pid 6407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6406] rt_sigprocmask(SIG_SETMASK, [], [pid 6408] set_robust_list(0x7fb72497a9a0, 24 [pid 6407] <... mmap resumed>) = 0x7fb72495a000 [pid 6406] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6408] <... set_robust_list resumed>) = 0 [pid 6408] rt_sigprocmask(SIG_SETMASK, [], [pid 6407] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6406] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6408] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6408] memfd_create("syzkaller", 0 [pid 6407] <... mprotect resumed>) = 0 [pid 6406] <... futex resumed>) = 0 [pid 6406] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6408] <... memfd_create resumed>) = 3 [pid 6407] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6407] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6407] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6408] <... mmap resumed>) = 0x7fb71c400000 ./strace-static-x86_64: Process 6409 attached [pid 6407] <... clone3 resumed> => {parent_tid=[6409]}, 88) = 6409 [pid 6409] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6407] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6407] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6407] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6409] <... rseq resumed>) = 0 [pid 6409] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6409] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6409] memfd_create("syzkaller", 0) = 3 [pid 6409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6408] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6409] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6405] <... write resumed>) = 16777216 [pid 6405] munmap(0x7fb71c400000, 138412032) = 0 [pid 6405] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6405] close(3 [pid 6408] <... write resumed>) = 16777216 [pid 6409] <... write resumed>) = 16777216 [pid 6405] <... close resumed>) = 0 [pid 6408] munmap(0x7fb71c400000, 138412032 [pid 6409] munmap(0x7fb71c400000, 138412032 [pid 6405] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6404] <... futex resumed>) = 0 [pid 6405] <... futex resumed>) = 1 [pid 6404] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6405] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6404] <... futex resumed>) = 0 [pid 6405] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6404] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6405] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6404] <... futex resumed>) = 0 [pid 6404] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6404] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6405] <... futex resumed>) = 1 [pid 6405] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6405] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6404] <... futex resumed>) = 0 [pid 6404] exit_group(0) = ? [pid 6405] <... futex resumed>) = ? [pid 6409] <... munmap resumed>) = 0 [pid 6408] <... munmap resumed>) = 0 [pid 6405] +++ exited with 0 +++ [pid 6404] +++ exited with 0 +++ [pid 6409] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6408] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6404, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 6409] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6408] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6409] close(3 [pid 6408] close(3 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6410 attached , child_tidptr=0x55556c203690) = 6410 [pid 6410] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6410] setpgid(0, 0) = 0 [pid 6410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6410] write(3, "1000", 4) = 4 [pid 6410] close(3) = 0 [pid 6410] write(1, "executing program\n", 18executing program ) = 18 [pid 6410] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6410] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6410] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6410] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6410] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6410] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6411 attached [pid 6411] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6411] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6411] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6411] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6410] <... clone3 resumed> => {parent_tid=[6411]}, 88) = 6411 [pid 6410] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6410] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6411] <... futex resumed>) = 0 [pid 6410] <... futex resumed>) = 1 [pid 6411] memfd_create("syzkaller", 0 [pid 6410] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6411] <... memfd_create resumed>) = 3 [pid 6411] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6409] <... close resumed>) = 0 [pid 6409] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6407] <... futex resumed>) = 0 [pid 6409] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6407] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6407] <... futex resumed>) = 0 [pid 6409] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6407] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6409] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6409] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6407] <... futex resumed>) = 0 [pid 6409] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6407] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6407] <... futex resumed>) = 0 [pid 6407] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6409] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6409] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6409] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6407] <... futex resumed>) = 0 [pid 6407] exit_group(0) = ? [pid 6409] <... futex resumed>) = ? [pid 6409] +++ exited with 0 +++ [pid 6407] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6407, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6412 attached [pid 6412] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6412 [pid 6412] <... set_robust_list resumed>) = 0 [pid 6412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6412] setpgid(0, 0 [pid 6408] <... close resumed>) = 0 [pid 6412] <... setpgid resumed>) = 0 [pid 6408] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6408] <... futex resumed>) = 1 [pid 6412] <... openat resumed>) = 3 [pid 6412] write(3, "1000", 4 [pid 6408] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6412] <... write resumed>) = 4 [pid 6412] close(3) = 0 executing program [pid 6406] <... futex resumed>) = 0 [pid 6412] write(1, "executing program\n", 18) = 18 [pid 6406] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6412] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6408] <... futex resumed>) = 0 [pid 6406] <... futex resumed>) = 1 [pid 6412] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6408] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6412] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6408] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6412] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6408] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6408] <... futex resumed>) = 0 [pid 6412] <... mmap resumed>) = 0x7fb72495a000 [pid 6412] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6408] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6412] <... mprotect resumed>) = 0 [pid 6412] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6412] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6413 attached [pid 6413] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6412] <... clone3 resumed> => {parent_tid=[6413]}, 88) = 6413 [pid 6413] <... rseq resumed>) = 0 [pid 6412] rt_sigprocmask(SIG_SETMASK, [], [pid 6413] set_robust_list(0x7fb72497a9a0, 24 [pid 6412] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6413] <... set_robust_list resumed>) = 0 [pid 6412] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6413] rt_sigprocmask(SIG_SETMASK, [], [pid 6412] <... futex resumed>) = 0 [pid 6413] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6412] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6413] memfd_create("syzkaller", 0) = 3 [pid 6406] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6406] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6413] <... mmap resumed>) = 0x7fb71c400000 [pid 6406] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6411] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6408] <... futex resumed>) = 0 [pid 6406] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6408] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6408] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6406] <... futex resumed>) = 0 [pid 6408] <... futex resumed>) = 1 [pid 6406] exit_group(0 [pid 6408] ???( [pid 6406] <... exit_group resumed>) = ? [pid 6408] <... ??? resumed>) = ? [pid 6408] +++ exited with 0 +++ [pid 6406] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6406, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6414 attached , child_tidptr=0x55556c203690) = 6414 [pid 6414] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6414] setpgid(0, 0) = 0 [pid 6414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6414] write(3, "1000", 4) = 4 [pid 6414] close(3executing program ) = 0 [pid 6414] write(1, "executing program\n", 18) = 18 [pid 6414] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6414] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6414] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6414] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6414] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6414] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6414] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6415 attached [pid 6415] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6414] <... clone3 resumed> => {parent_tid=[6415]}, 88) = 6415 [pid 6415] <... rseq resumed>) = 0 [pid 6414] rt_sigprocmask(SIG_SETMASK, [], [pid 6415] set_robust_list(0x7fb72497a9a0, 24 [pid 6414] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6415] <... set_robust_list resumed>) = 0 [pid 6414] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6415] rt_sigprocmask(SIG_SETMASK, [], [pid 6414] <... futex resumed>) = 0 [pid 6415] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6414] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6415] memfd_create("syzkaller", 0) = 3 [pid 6415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6411] <... write resumed>) = 16777216 [pid 6411] munmap(0x7fb71c400000, 138412032 [pid 6415] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6411] <... munmap resumed>) = 0 [pid 6411] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6411] close(3 [pid 6413] <... write resumed>) = 16777216 [pid 6413] munmap(0x7fb71c400000, 138412032) = 0 [pid 6413] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6413] close(3 [pid 6411] <... close resumed>) = 0 [pid 6411] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6410] <... futex resumed>) = 0 [pid 6411] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6410] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6411] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6410] <... futex resumed>) = 0 [pid 6411] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6410] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6411] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6411] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6410] <... futex resumed>) = 0 [pid 6410] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6411] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6410] <... futex resumed>) = 0 [pid 6411] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6410] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6411] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6410] <... futex resumed>) = 0 [pid 6411] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6410] exit_group(0 [pid 6411] <... futex resumed>) = ? [pid 6410] <... exit_group resumed>) = ? [pid 6411] +++ exited with 0 +++ [pid 6410] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6410, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6416 attached , child_tidptr=0x55556c203690) = 6416 [pid 6416] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6416] setpgid(0, 0) = 0 [pid 6416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6416] write(3, "1000", 4) = 4 executing program [pid 6416] close(3) = 0 [pid 6416] write(1, "executing program\n", 18) = 18 [pid 6416] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6416] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6416] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6416] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6416] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6416] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6417 attached => {parent_tid=[6417]}, 88) = 6417 [pid 6417] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6416] rt_sigprocmask(SIG_SETMASK, [], [pid 6417] <... rseq resumed>) = 0 [pid 6417] set_robust_list(0x7fb72497a9a0, 24 [pid 6416] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6417] <... set_robust_list resumed>) = 0 [pid 6416] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6413] <... close resumed>) = 0 [pid 6417] rt_sigprocmask(SIG_SETMASK, [], [pid 6416] <... futex resumed>) = 0 [pid 6413] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6417] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6416] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6413] <... futex resumed>) = 1 [pid 6412] <... futex resumed>) = 0 [pid 6417] memfd_create("syzkaller", 0 [pid 6413] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6412] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6413] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6413] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6417] <... memfd_create resumed>) = 3 [pid 6413] <... futex resumed>) = 0 [pid 6413] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6415] <... write resumed>) = 16777216 [pid 6413] <... futex resumed>) = 0 [pid 6412] <... futex resumed>) = 1 [pid 6415] munmap(0x7fb71c400000, 138412032 [pid 6413] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6412] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6412] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6413] <... futex resumed>) = 0 [pid 6412] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6413] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6413] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6412] <... futex resumed>) = 0 [pid 6413] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6412] exit_group(0) = ? [pid 6413] <... futex resumed>) = ? [pid 6413] +++ exited with 0 +++ [pid 6412] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6412, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6415] <... munmap resumed>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6415] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6415] close(3 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6418 attached [pid 6418] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6418 [pid 6418] <... prctl resumed>) = 0 [pid 6418] setpgid(0, 0) = 0 [pid 6418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6418] write(3, "1000", 4) = 4 [pid 6418] close(3executing program ) = 0 [pid 6418] write(1, "executing program\n", 18) = 18 [pid 6418] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6418] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6418] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6418] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6418] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6418] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6419 attached => {parent_tid=[6419]}, 88) = 6419 [pid 6418] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6418] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6419] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6418] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6419] <... rseq resumed>) = 0 [pid 6419] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6419] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6419] memfd_create("syzkaller", 0) = 3 [pid 6419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6417] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6415] <... close resumed>) = 0 [pid 6415] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6414] <... futex resumed>) = 0 [pid 6415] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6414] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6414] <... futex resumed>) = 0 [pid 6415] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6414] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6415] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6415] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6414] <... futex resumed>) = 0 [pid 6415] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6414] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6415] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6414] <... futex resumed>) = 0 [pid 6415] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6414] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6415] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6415] <... futex resumed>) = 0 [pid 6414] exit_group(0 [pid 6415] exit_group(0 [pid 6414] <... exit_group resumed>) = ? [pid 6415] +++ exited with 0 +++ [pid 6414] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6414, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6420 attached [pid 6420] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6420 [pid 6420] <... set_robust_list resumed>) = 0 [pid 6420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6420] setpgid(0, 0) = 0 [pid 6420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6420] write(3, "1000", 4executing program ) = 4 [pid 6420] close(3) = 0 [pid 6420] write(1, "executing program\n", 18) = 18 [pid 6420] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6420] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6420] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6420] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6420] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6420] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6420] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6421 attached => {parent_tid=[6421]}, 88) = 6421 [pid 6420] rt_sigprocmask(SIG_SETMASK, [], [pid 6419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6420] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6420] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6420] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6421] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6421] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6421] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6421] memfd_create("syzkaller", 0) = 3 [pid 6421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6417] <... write resumed>) = 16777216 [pid 6421] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6417] munmap(0x7fb71c400000, 138412032) = 0 [pid 6417] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6419] <... write resumed>) = 16777216 [pid 6417] close(3 [pid 6419] munmap(0x7fb71c400000, 138412032) = 0 [pid 6419] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6419] close(3 [pid 6421] <... write resumed>) = 16777216 [pid 6421] munmap(0x7fb71c400000, 138412032 [pid 6417] <... close resumed>) = 0 [pid 6421] <... munmap resumed>) = 0 [pid 6417] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6421] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6417] <... futex resumed>) = 1 [pid 6416] <... futex resumed>) = 0 [pid 6421] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6417] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6416] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6421] close(3 [pid 6417] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6416] <... futex resumed>) = 0 [pid 6416] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6417] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6417] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6417] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6416] <... futex resumed>) = 0 [pid 6416] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6417] <... futex resumed>) = 0 [pid 6416] <... futex resumed>) = 1 [pid 6417] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6416] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6417] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6417] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6416] <... futex resumed>) = 0 [pid 6417] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6416] exit_group(0 [pid 6417] <... futex resumed>) = ? [pid 6416] <... exit_group resumed>) = ? [pid 6417] +++ exited with 0 +++ [pid 6416] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6416, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6422 attached [pid 6419] <... close resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6422 [pid 6422] set_robust_list(0x55556c2036a0, 24 [pid 6419] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6422] <... set_robust_list resumed>) = 0 [pid 6419] <... futex resumed>) = 1 [pid 6422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6419] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6418] <... futex resumed>) = 0 [pid 6422] <... prctl resumed>) = 0 [pid 6418] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6422] setpgid(0, 0) = 0 [pid 6418] <... futex resumed>) = 1 [pid 6422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6419] <... futex resumed>) = 0 [pid 6418] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6419] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6422] <... openat resumed>) = 3 [pid 6419] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6418] <... futex resumed>) = 0 [pid 6422] write(3, "1000", 4 [pid 6419] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6418] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6422] <... write resumed>) = 4 [pid 6419] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6418] <... futex resumed>) = 0 [pid 6422] close(3 [pid 6419] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6418] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6422] <... close resumed>) = 0 [pid 6419] <... futex resumed>) = 0 executing program [pid 6422] write(1, "executing program\n", 18 [pid 6419] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6418] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6422] <... write resumed>) = 18 [pid 6418] exit_group(0 [pid 6422] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6419] <... futex resumed>) = ? [pid 6418] <... exit_group resumed>) = ? [pid 6422] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6422] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6422] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6422] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6422] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6419] +++ exited with 0 +++ [pid 6418] +++ exited with 0 +++ [pid 6422] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6418, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=34 /* 0.34 s */} --- ./strace-static-x86_64: Process 6423 attached [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6422] <... clone3 resumed> => {parent_tid=[6423]}, 88) = 6423 [pid 6422] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6422] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6422] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6423] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6423] <... rseq resumed>) = 0 [pid 6423] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6423] rt_sigprocmask(SIG_SETMASK, [], [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6423] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6423] memfd_create("syzkaller", 0 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6424 attached [pid 6423] <... memfd_create resumed>) = 3 [pid 6423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6424] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6424 [pid 6424] <... set_robust_list resumed>) = 0 [pid 6424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6424] setpgid(0, 0) = 0 [pid 6424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6424] write(3, "1000", 4) = 4 [pid 6424] close(3) = 0 [pid 6424] write(1, "executing program\n", 18) = 18 [pid 6424] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6424] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6424] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6424] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6424] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6424] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6425 attached => {parent_tid=[6425]}, 88) = 6425 [pid 6424] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6425] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6424] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6425] <... rseq resumed>) = 0 [pid 6424] <... futex resumed>) = 0 [pid 6425] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6424] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6425] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6425] memfd_create("syzkaller", 0) = 3 [pid 6425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6421] <... close resumed>) = 0 [pid 6421] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6420] <... futex resumed>) = 0 [pid 6421] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6420] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6421] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6420] <... futex resumed>) = 0 [pid 6421] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6420] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6421] <... futex resumed>) = 0 [pid 6421] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6420] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6421] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6420] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6421] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6421] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6420] <... futex resumed>) = 0 [pid 6421] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6420] exit_group(0 [pid 6421] <... futex resumed>) = ? [pid 6420] <... exit_group resumed>) = ? [pid 6421] +++ exited with 0 +++ [pid 6420] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6420, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6426 attached , child_tidptr=0x55556c203690) = 6426 [pid 6426] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6426] setpgid(0, 0) = 0 [pid 6426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6426] write(3, "1000", 4) = 4 [pid 6426] close(3) = 0 [pid 6426] write(1, "executing program\n", 18executing program ) = 18 [pid 6426] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6423] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6426] <... futex resumed>) = 0 [pid 6426] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6426] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6426] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6426] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6426] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6426] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6427 attached => {parent_tid=[6427]}, 88) = 6427 [pid 6427] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6426] rt_sigprocmask(SIG_SETMASK, [], [pid 6427] <... rseq resumed>) = 0 [pid 6426] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6427] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6426] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6427] rt_sigprocmask(SIG_SETMASK, [], [pid 6426] <... futex resumed>) = 0 [pid 6427] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6426] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6427] memfd_create("syzkaller", 0 [pid 6425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6427] <... memfd_create resumed>) = 3 [pid 6427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6427] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6423] <... write resumed>) = 16777216 [pid 6423] munmap(0x7fb71c400000, 138412032 [pid 6425] <... write resumed>) = 16777216 [pid 6425] munmap(0x7fb71c400000, 138412032 [pid 6423] <... munmap resumed>) = 0 [pid 6423] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6423] close(3 [pid 6425] <... munmap resumed>) = 0 [pid 6425] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6425] close(3 [pid 6427] <... write resumed>) = 16777216 [pid 6427] munmap(0x7fb71c400000, 138412032) = 0 [pid 6427] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6427] close(3 [pid 6425] <... close resumed>) = 0 [pid 6425] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6424] <... futex resumed>) = 0 [pid 6425] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6424] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6425] <... futex resumed>) = 0 [pid 6424] <... futex resumed>) = 1 [pid 6425] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6424] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6425] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6425] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6424] <... futex resumed>) = 0 [pid 6425] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6424] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6424] <... futex resumed>) = 0 [pid 6424] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6425] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6425] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6424] <... futex resumed>) = 0 [pid 6424] exit_group(0) = ? [pid 6425] +++ exited with 0 +++ [pid 6424] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6424, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6428 attached , child_tidptr=0x55556c203690) = 6428 [pid 6423] <... close resumed>) = 0 [pid 6428] set_robust_list(0x55556c2036a0, 24 [pid 6423] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6428] <... set_robust_list resumed>) = 0 [pid 6423] <... futex resumed>) = 1 [pid 6422] <... futex resumed>) = 0 [pid 6428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6423] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6428] <... prctl resumed>) = 0 [pid 6428] setpgid(0, 0 [pid 6422] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6428] <... setpgid resumed>) = 0 [pid 6423] <... futex resumed>) = 0 [pid 6422] <... futex resumed>) = 1 [pid 6428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6423] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6422] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6423] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6428] <... openat resumed>) = 3 [pid 6423] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6422] <... futex resumed>) = 0 [pid 6423] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6422] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6428] write(3, "1000", 4 [pid 6423] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6422] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6428] <... write resumed>) = 4 [pid 6423] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6428] close(3 [pid 6423] <... futex resumed>) = 1 [pid 6422] <... futex resumed>) = 0 executing program [pid 6428] <... close resumed>) = 0 [pid 6423] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6422] exit_group(0 [pid 6428] write(1, "executing program\n", 18 [pid 6423] <... futex resumed>) = ? [pid 6422] <... exit_group resumed>) = ? [pid 6428] <... write resumed>) = 18 [pid 6428] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6423] +++ exited with 0 +++ [pid 6422] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6422, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 6428] <... futex resumed>) = 0 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6428] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5872] <... restart_syscall resumed>) = 0 [pid 6428] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6428] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6428] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6428] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6428] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6429 attached [pid 6428] <... mprotect resumed>) = 0 [pid 6428] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6428] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6430 attached [pid 6430] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6429] set_robust_list(0x55556c2036a0, 24 [pid 6428] <... clone3 resumed> => {parent_tid=[6430]}, 88) = 6430 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6429 [pid 6430] set_robust_list(0x7fb72497a9a0, 24 [pid 6429] <... set_robust_list resumed>) = 0 [pid 6428] rt_sigprocmask(SIG_SETMASK, [], [pid 6430] <... set_robust_list resumed>) = 0 [pid 6429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6428] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6430] rt_sigprocmask(SIG_SETMASK, [], [pid 6428] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6430] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6429] <... prctl resumed>) = 0 [pid 6428] <... futex resumed>) = 0 [pid 6430] memfd_create("syzkaller", 0 [pid 6429] setpgid(0, 0) = 0 [pid 6428] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6430] <... memfd_create resumed>) = 3 [pid 6430] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6429] <... openat resumed>) = 3 executing program [pid 6429] write(3, "1000", 4) = 4 [pid 6429] close(3) = 0 [pid 6429] write(1, "executing program\n", 18) = 18 [pid 6429] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6429] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6427] <... close resumed>) = 0 [pid 6429] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6429] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6429] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6429] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6429] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6429] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6431 attached [pid 6427] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6431] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6427] <... futex resumed>) = 1 [pid 6426] <... futex resumed>) = 0 [pid 6431] <... rseq resumed>) = 0 [pid 6427] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6426] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6431] set_robust_list(0x7fb72497a9a0, 24 [pid 6427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6426] <... futex resumed>) = 0 [pid 6431] <... set_robust_list resumed>) = 0 [pid 6429] <... clone3 resumed> => {parent_tid=[6431]}, 88) = 6431 [pid 6427] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6431] rt_sigprocmask(SIG_SETMASK, [], [pid 6426] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6431] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6429] rt_sigprocmask(SIG_SETMASK, [], [pid 6427] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6431] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6429] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6427] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6429] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6427] <... futex resumed>) = 1 [pid 6426] <... futex resumed>) = 0 [pid 6431] <... futex resumed>) = 0 [pid 6429] <... futex resumed>) = 1 [pid 6427] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6426] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6431] memfd_create("syzkaller", 0 [pid 6429] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6426] <... futex resumed>) = 0 [pid 6431] <... memfd_create resumed>) = 3 [pid 6427] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6426] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6431] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6427] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6431] <... mmap resumed>) = 0x7fb71c400000 [pid 6427] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6426] <... futex resumed>) = 0 [pid 6427] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6426] exit_group(0 [pid 6427] <... futex resumed>) = ? [pid 6426] <... exit_group resumed>) = ? [pid 6427] +++ exited with 0 +++ [pid 6426] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6426, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6432 attached , child_tidptr=0x55556c203690) = 6432 [pid 6432] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6432] setpgid(0, 0) = 0 [pid 6432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6432] write(3, "1000", 4) = 4 [pid 6432] close(3) = 0 [pid 6432] write(1, "executing program\n", 18executing program ) = 18 [pid 6432] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6432] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6432] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6432] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6432] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6432] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6432] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6433 attached [pid 6433] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6432] <... clone3 resumed> => {parent_tid=[6433]}, 88) = 6433 [pid 6433] <... rseq resumed>) = 0 [pid 6432] rt_sigprocmask(SIG_SETMASK, [], [pid 6433] set_robust_list(0x7fb72497a9a0, 24 [pid 6432] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6433] <... set_robust_list resumed>) = 0 [pid 6432] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6433] rt_sigprocmask(SIG_SETMASK, [], [pid 6432] <... futex resumed>) = 0 [pid 6433] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6433] memfd_create("syzkaller", 0 [pid 6432] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6433] <... memfd_create resumed>) = 3 [pid 6433] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6431] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6430] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6433] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6431] <... write resumed>) = 16777216 [pid 6431] munmap(0x7fb71c400000, 138412032) = 0 [pid 6431] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6431] close(3 [pid 6430] <... write resumed>) = 16777216 [pid 6430] munmap(0x7fb71c400000, 138412032) = 0 [pid 6430] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6430] close(3 [pid 6433] <... write resumed>) = 16777216 [pid 6433] munmap(0x7fb71c400000, 138412032) = 0 [pid 6433] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6431] <... close resumed>) = 0 [pid 6431] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6433] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6431] <... futex resumed>) = 1 [pid 6429] <... futex resumed>) = 0 [pid 6433] close(3 [pid 6431] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6429] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6429] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6431] <... futex resumed>) = 0 [pid 6431] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6431] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6431] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6429] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6429] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6431] <... futex resumed>) = 0 [pid 6429] <... futex resumed>) = 1 [pid 6429] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6431] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6431] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6431] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6429] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6429] exit_group(0 [pid 6431] <... futex resumed>) = ? [pid 6429] <... exit_group resumed>) = ? [pid 6431] +++ exited with 0 +++ [pid 6429] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6429, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6434 ./strace-static-x86_64: Process 6434 attached [pid 6434] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6434] setpgid(0, 0) = 0 [pid 6434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6430] <... close resumed>) = 0 [pid 6434] write(3, "1000", 4) = 4 [pid 6430] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6434] close(3 [pid 6430] <... futex resumed>) = 1 executing program [pid 6434] <... close resumed>) = 0 [pid 6430] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6434] write(1, "executing program\n", 18) = 18 [pid 6434] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6434] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6428] <... futex resumed>) = 0 [pid 6434] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6434] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6434] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6428] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6434] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6430] <... futex resumed>) = 0 [pid 6428] <... futex resumed>) = 1 [pid 6434] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6435 attached [pid 6430] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6428] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6434] <... clone3 resumed> => {parent_tid=[6435]}, 88) = 6435 [pid 6430] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6434] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6430] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6434] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6430] <... futex resumed>) = 0 [pid 6428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6434] <... futex resumed>) = 0 [pid 6430] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6428] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6434] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6430] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6435] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6428] <... futex resumed>) = 0 [pid 6435] <... rseq resumed>) = 0 [pid 6430] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6428] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6435] set_robust_list(0x7fb72497a9a0, 24 [pid 6430] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6430] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6428] <... futex resumed>) = 0 [pid 6435] <... set_robust_list resumed>) = 0 [pid 6430] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6435] rt_sigprocmask(SIG_SETMASK, [], [pid 6428] exit_group(0 [pid 6435] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6430] <... futex resumed>) = ? [pid 6428] <... exit_group resumed>) = ? [pid 6430] +++ exited with 0 +++ [pid 6435] memfd_create("syzkaller", 0) = 3 [pid 6428] +++ exited with 0 +++ [pid 6435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6428, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 6435] <... mmap resumed>) = 0x7fb71c400000 [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6436 ./strace-static-x86_64: Process 6436 attached [pid 6436] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6436] setpgid(0, 0) = 0 [pid 6436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6436] write(3, "1000", 4) = 4 [pid 6436] close(3) = 0 executing program [pid 6436] write(1, "executing program\n", 18) = 18 [pid 6436] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6436] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6436] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6436] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6433] <... close resumed>) = 0 [pid 6436] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6433] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6436] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6433] <... futex resumed>) = 1 [pid 6432] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6437 attached [pid 6433] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6432] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6433] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6432] <... futex resumed>) = 0 [pid 6436] <... clone3 resumed> => {parent_tid=[6437]}, 88) = 6437 [pid 6433] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6432] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6436] rt_sigprocmask(SIG_SETMASK, [], [pid 6433] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6436] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6433] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6436] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6433] <... futex resumed>) = 1 [pid 6432] <... futex resumed>) = 0 [pid 6436] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6433] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6432] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6433] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6432] <... futex resumed>) = 0 [pid 6433] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6432] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6433] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6433] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6437] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6432] <... futex resumed>) = 0 [pid 6437] <... rseq resumed>) = 0 [pid 6433] <... futex resumed>) = 1 [pid 6432] exit_group(0 [pid 6437] set_robust_list(0x7fb72497a9a0, 24 [pid 6432] <... exit_group resumed>) = ? [pid 6437] <... set_robust_list resumed>) = 0 [pid 6433] +++ exited with 0 +++ [pid 6432] +++ exited with 0 +++ [pid 6437] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6432, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6437] memfd_create("syzkaller", 0) = 3 [pid 6437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6438 attached , child_tidptr=0x55556c203690) = 6438 [pid 6438] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6438] setpgid(0, 0) = 0 [pid 6438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6438] write(3, "1000", 4) = 4 [pid 6438] close(3 [pid 6435] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6438] <... close resumed>) = 0 [pid 6438] write(1, "executing program\n", 18executing program ) = 18 [pid 6438] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6438] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6438] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6438] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6438] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6438] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6438] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6439 attached [pid 6439] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6438] <... clone3 resumed> => {parent_tid=[6439]}, 88) = 6439 [pid 6439] <... rseq resumed>) = 0 [pid 6438] rt_sigprocmask(SIG_SETMASK, [], [pid 6439] set_robust_list(0x7fb72497a9a0, 24 [pid 6438] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6439] <... set_robust_list resumed>) = 0 [pid 6438] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6439] rt_sigprocmask(SIG_SETMASK, [], [pid 6438] <... futex resumed>) = 0 [pid 6439] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6438] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6439] memfd_create("syzkaller", 0) = 3 [pid 6439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6437] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6435] <... write resumed>) = 16777216 [pid 6435] munmap(0x7fb71c400000, 138412032) = 0 [pid 6435] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6435] close(3 [pid 6439] <... write resumed>) = 16777216 [pid 6439] munmap(0x7fb71c400000, 138412032 [pid 6437] <... write resumed>) = 16777216 [pid 6439] <... munmap resumed>) = 0 [pid 6439] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6437] munmap(0x7fb71c400000, 138412032 [pid 6439] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6439] close(3 [pid 6437] <... munmap resumed>) = 0 [pid 6437] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6437] close(3 [pid 6435] <... close resumed>) = 0 [pid 6435] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6434] <... futex resumed>) = 0 [pid 6435] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6434] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6435] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6434] <... futex resumed>) = 0 [pid 6434] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6435] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6435] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6434] <... futex resumed>) = 0 [pid 6435] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6434] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6435] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6434] <... futex resumed>) = 0 [pid 6435] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6434] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6435] <... futex resumed>) = 0 [pid 6434] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6435] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6434] exit_group(0 [pid 6435] <... futex resumed>) = ? [pid 6434] <... exit_group resumed>) = ? [pid 6435] +++ exited with 0 +++ [pid 6434] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6434, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6440 attached , child_tidptr=0x55556c203690) = 6440 [pid 6440] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6440] setpgid(0, 0) = 0 [pid 6440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6440] write(3, "1000", 4) = 4 [pid 6440] close(3) = 0 [pid 6440] write(1, "executing program\n", 18) = 18 [pid 6440] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6440] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6440] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6440] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6440] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6440] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6440] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6441 attached [pid 6441] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6440] <... clone3 resumed> => {parent_tid=[6441]}, 88) = 6441 [pid 6441] <... rseq resumed>) = 0 [pid 6440] rt_sigprocmask(SIG_SETMASK, [], [pid 6441] set_robust_list(0x7fb72497a9a0, 24 [pid 6440] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6441] <... set_robust_list resumed>) = 0 [pid 6440] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6441] rt_sigprocmask(SIG_SETMASK, [], [pid 6440] <... futex resumed>) = 0 [pid 6441] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6440] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6441] memfd_create("syzkaller", 0) = 3 [pid 6441] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6439] <... close resumed>) = 0 [pid 6439] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6438] <... futex resumed>) = 0 [pid 6438] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6439] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6438] <... futex resumed>) = 0 [pid 6439] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6438] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6439] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6439] <... futex resumed>) = 0 [pid 6438] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6439] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6438] <... futex resumed>) = 0 [pid 6439] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6438] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6439] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6439] <... futex resumed>) = 0 [pid 6438] exit_group(0) = ? [pid 6439] +++ exited with 0 +++ [pid 6438] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6438, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=30 /* 0.30 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6442 attached , child_tidptr=0x55556c203690) = 6442 [pid 6442] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6442] setpgid(0, 0) = 0 [pid 6442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6442] write(3, "1000", 4) = 4 [pid 6442] close(3executing program ) = 0 [pid 6442] write(1, "executing program\n", 18) = 18 [pid 6442] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6442] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6442] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6442] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6442] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6442] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6442] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6443 attached [pid 6443] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6442] <... clone3 resumed> => {parent_tid=[6443]}, 88) = 6443 [pid 6443] <... rseq resumed>) = 0 [pid 6442] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6443] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6442] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6437] <... close resumed>) = 0 [pid 6443] rt_sigprocmask(SIG_SETMASK, [], [pid 6442] <... futex resumed>) = 0 [pid 6437] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6443] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6442] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6436] <... futex resumed>) = 0 [pid 6443] memfd_create("syzkaller", 0 [pid 6437] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6436] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6437] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6436] <... futex resumed>) = 0 [pid 6443] <... memfd_create resumed>) = 3 [pid 6437] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6436] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6437] <... futex resumed>) = 0 [pid 6436] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6437] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6436] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6443] <... mmap resumed>) = 0x7fb71c400000 [pid 6437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6436] <... futex resumed>) = 0 [pid 6436] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6437] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6437] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6437] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6436] <... futex resumed>) = 0 [pid 6436] exit_group(0 [pid 6437] <... futex resumed>) = ? [pid 6436] <... exit_group resumed>) = ? [pid 6437] +++ exited with 0 +++ [pid 6436] +++ exited with 0 +++ [pid 6441] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6436, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6444 attached [pid 6444] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6444 [pid 6444] <... prctl resumed>) = 0 [pid 6444] setpgid(0, 0) = 0 [pid 6444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6444] write(3, "1000", 4) = 4 [pid 6444] close(3executing program ) = 0 [pid 6444] write(1, "executing program\n", 18) = 18 [pid 6444] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6444] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6444] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6444] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6444] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6444] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6445 attached => {parent_tid=[6445]}, 88) = 6445 [pid 6445] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6444] rt_sigprocmask(SIG_SETMASK, [], [pid 6445] <... rseq resumed>) = 0 [pid 6444] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6445] set_robust_list(0x7fb72497a9a0, 24 [pid 6444] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6445] <... set_robust_list resumed>) = 0 [pid 6444] <... futex resumed>) = 0 [pid 6445] rt_sigprocmask(SIG_SETMASK, [], [pid 6444] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6445] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6445] memfd_create("syzkaller", 0) = 3 [pid 6445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6443] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6441] <... write resumed>) = 16777216 [pid 6441] munmap(0x7fb71c400000, 138412032 [pid 6445] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6441] <... munmap resumed>) = 0 [pid 6441] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6441] close(3 [pid 6443] <... write resumed>) = 16777216 [pid 6443] munmap(0x7fb71c400000, 138412032) = 0 [pid 6443] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6443] close(3 [pid 6441] <... close resumed>) = 0 [pid 6441] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6440] <... futex resumed>) = 0 [pid 6441] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6440] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6441] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6440] <... futex resumed>) = 0 [pid 6441] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6440] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6441] <... futex resumed>) = 0 [pid 6440] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6441] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6440] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6441] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6440] <... futex resumed>) = 0 [pid 6440] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6441] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6440] <... futex resumed>) = 0 [pid 6441] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6440] exit_group(0 [pid 6441] <... futex resumed>) = ? [pid 6440] <... exit_group resumed>) = ? [pid 6441] +++ exited with 0 +++ [pid 6440] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6440, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6446 attached , child_tidptr=0x55556c203690) = 6446 [pid 6446] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6446] setpgid(0, 0) = 0 [pid 6446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6446] write(3, "1000", 4) = 4 [pid 6446] close(3executing program ) = 0 [pid 6446] write(1, "executing program\n", 18) = 18 [pid 6446] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6446] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6446] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6446] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6446] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6446] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6446] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6447 attached [pid 6447] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6446] <... clone3 resumed> => {parent_tid=[6447]}, 88) = 6447 [pid 6447] <... rseq resumed>) = 0 [pid 6446] rt_sigprocmask(SIG_SETMASK, [], [pid 6447] set_robust_list(0x7fb72497a9a0, 24 [pid 6446] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6447] <... set_robust_list resumed>) = 0 [pid 6446] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6447] rt_sigprocmask(SIG_SETMASK, [], [pid 6446] <... futex resumed>) = 0 [pid 6447] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6446] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6447] memfd_create("syzkaller", 0) = 3 [pid 6447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6443] <... close resumed>) = 0 [pid 6443] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6443] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6442] <... futex resumed>) = 0 [pid 6442] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6443] <... futex resumed>) = 0 [pid 6442] <... futex resumed>) = 1 [pid 6443] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6442] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6443] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6443] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6442] <... futex resumed>) = 0 [pid 6443] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6442] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6443] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6442] <... futex resumed>) = 0 [pid 6443] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6442] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6443] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6443] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6442] <... futex resumed>) = 0 [pid 6443] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6442] exit_group(0 [pid 6443] <... futex resumed>) = ? [pid 6442] <... exit_group resumed>) = ? [pid 6443] +++ exited with 0 +++ [pid 6442] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6442, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6448 attached , child_tidptr=0x55556c203690) = 6448 [pid 6448] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6448] setpgid(0, 0) = 0 [pid 6448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6448] write(3, "1000", 4) = 4 [pid 6448] close(3) = 0 [pid 6448] write(1, "executing program\n", 18) = 18 [pid 6448] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6448] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6448] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6448] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6448] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6445] <... write resumed>) = 16777216 [pid 6445] munmap(0x7fb71c400000, 138412032 [pid 6448] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6448] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6449 attached [pid 6449] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6448] <... clone3 resumed> => {parent_tid=[6449]}, 88) = 6449 [pid 6449] <... rseq resumed>) = 0 [pid 6448] rt_sigprocmask(SIG_SETMASK, [], [pid 6449] set_robust_list(0x7fb72497a9a0, 24 [pid 6448] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6449] <... set_robust_list resumed>) = 0 [pid 6448] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6449] rt_sigprocmask(SIG_SETMASK, [], [pid 6448] <... futex resumed>) = 0 [pid 6449] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6448] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6449] memfd_create("syzkaller", 0) = 3 [pid 6449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6445] <... munmap resumed>) = 0 [pid 6445] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6447] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6445] close(3 [pid 6449] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6447] <... write resumed>) = 16777216 [pid 6445] <... close resumed>) = 0 [pid 6447] munmap(0x7fb71c400000, 138412032 [pid 6445] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6447] <... munmap resumed>) = 0 [pid 6445] <... futex resumed>) = 1 [pid 6444] <... futex resumed>) = 0 [pid 6444] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6444] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6445] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6445] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6444] <... futex resumed>) = 0 [pid 6444] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6444] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6445] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6445] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6444] <... futex resumed>) = 0 [pid 6444] exit_group(0) = ? [pid 6447] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6445] +++ exited with 0 +++ [pid 6444] +++ exited with 0 +++ [pid 6447] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6444, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6450 attached , child_tidptr=0x55556c203690) = 6450 [pid 6447] close(3 [pid 6450] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6450] setpgid(0, 0) = 0 [pid 6450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6450] write(3, "1000", 4) = 4 [pid 6450] close(3executing program ) = 0 [pid 6450] write(1, "executing program\n", 18) = 18 [pid 6450] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6450] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6450] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6450] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6450] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6450] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6451 attached [pid 6451] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6450] <... clone3 resumed> => {parent_tid=[6451]}, 88) = 6451 [pid 6451] <... rseq resumed>) = 0 [pid 6450] rt_sigprocmask(SIG_SETMASK, [], [pid 6451] set_robust_list(0x7fb72497a9a0, 24 [pid 6450] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6451] <... set_robust_list resumed>) = 0 [pid 6450] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6451] rt_sigprocmask(SIG_SETMASK, [], [pid 6450] <... futex resumed>) = 0 [pid 6451] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6450] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6451] memfd_create("syzkaller", 0) = 3 [pid 6451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6447] <... close resumed>) = 0 [pid 6447] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6446] <... futex resumed>) = 0 [pid 6447] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6446] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6447] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6446] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6447] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6446] <... futex resumed>) = 0 [pid 6446] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6447] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6446] <... futex resumed>) = 0 [pid 6447] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6446] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6447] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6446] <... futex resumed>) = 0 [pid 6447] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6446] exit_group(0 [pid 6447] <... futex resumed>) = ? [pid 6446] <... exit_group resumed>) = ? [pid 6449] <... write resumed>) = 16777216 [pid 6447] +++ exited with 0 +++ [pid 6446] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6446, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6449] munmap(0x7fb71c400000, 138412032 [pid 6451] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6452 attached [pid 6452] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6452 [pid 6452] <... set_robust_list resumed>) = 0 [pid 6452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6449] <... munmap resumed>) = 0 [pid 6452] setpgid(0, 0) = 0 [pid 6452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6449] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6452] write(3, "1000", 4 [pid 6449] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6452] <... write resumed>) = 4 [pid 6452] close(3) = 0 [pid 6449] close(3 [pid 6452] write(1, "executing program\n", 18executing program ) = 18 [pid 6452] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6452] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6452] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6452] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6452] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6452] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6453 attached => {parent_tid=[6453]}, 88) = 6453 [pid 6452] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6452] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6452] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6453] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6453] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6453] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6453] memfd_create("syzkaller", 0) = 3 [pid 6453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6449] <... close resumed>) = 0 [pid 6449] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6448] <... futex resumed>) = 0 [pid 6449] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6448] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6449] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6453] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6449] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6448] <... futex resumed>) = 0 [pid 6449] <... futex resumed>) = 0 [pid 6448] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6448] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6448] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6449] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6449] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6448] <... futex resumed>) = 0 [pid 6449] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6448] exit_group(0 [pid 6449] <... futex resumed>) = ? [pid 6448] <... exit_group resumed>) = ? [pid 6449] +++ exited with 0 +++ [pid 6448] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6448, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6454 attached , child_tidptr=0x55556c203690) = 6454 [pid 6454] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6454] setpgid(0, 0) = 0 [pid 6454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6454] write(3, "1000", 4) = 4 [pid 6454] close(3) = 0 [pid 6454] write(1, "executing program\n", 18) = 18 [pid 6454] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000executing program ) = 0 [pid 6454] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6454] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6454] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6454] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6454] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6454] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6455 attached [pid 6455] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6454] <... clone3 resumed> => {parent_tid=[6455]}, 88) = 6455 [pid 6454] rt_sigprocmask(SIG_SETMASK, [], [pid 6455] <... rseq resumed>) = 0 [pid 6454] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6454] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6455] set_robust_list(0x7fb72497a9a0, 24 [pid 6454] <... futex resumed>) = 0 [pid 6455] <... set_robust_list resumed>) = 0 [pid 6454] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6455] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6455] memfd_create("syzkaller", 0) = 3 [pid 6455] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6451] <... write resumed>) = 16777216 [pid 6451] munmap(0x7fb71c400000, 138412032) = 0 [pid 6451] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6451] close(3 [pid 6453] <... write resumed>) = 16777216 [pid 6453] munmap(0x7fb71c400000, 138412032 [pid 6455] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6453] <... munmap resumed>) = 0 [pid 6453] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6453] close(3 [pid 6451] <... close resumed>) = 0 [pid 6451] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6451] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6450] <... futex resumed>) = 0 [pid 6450] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6451] <... futex resumed>) = 0 [pid 6450] <... futex resumed>) = 1 [pid 6451] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6450] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6451] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6451] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6450] <... futex resumed>) = 0 [pid 6451] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6450] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6451] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6450] <... futex resumed>) = 0 [pid 6451] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6450] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6451] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6450] exit_group(0) = ? [pid 6451] <... futex resumed>) = ? [pid 6451] +++ exited with 0 +++ [pid 6450] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6450, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6456 attached , child_tidptr=0x55556c203690) = 6456 [pid 6456] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6456] setpgid(0, 0) = 0 [pid 6456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6456] write(3, "1000", 4) = 4 [pid 6456] close(3) = 0 [pid 6456] write(1, "executing program\n", 18executing program ) = 18 [pid 6456] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6456] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6456] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6456] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6456] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6456] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6456] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6457]}, 88) = 6457 [pid 6456] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6456] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 6457 attached [pid 6457] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6456] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6457] <... rseq resumed>) = 0 [pid 6457] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6457] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6457] memfd_create("syzkaller", 0) = 3 [pid 6457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6453] <... close resumed>) = 0 [pid 6453] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6453] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6452] <... futex resumed>) = 0 [pid 6452] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6453] <... futex resumed>) = 0 [pid 6453] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6452] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6453] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6453] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6453] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6452] <... futex resumed>) = 0 [pid 6452] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6453] <... futex resumed>) = 0 [pid 6452] <... futex resumed>) = 1 [pid 6453] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6452] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6453] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6453] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6453] <... futex resumed>) = 0 [pid 6453] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6452] exit_group(0 [pid 6453] <... futex resumed>) = ? [pid 6452] <... exit_group resumed>) = ? [pid 6453] +++ exited with 0 +++ [pid 6452] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6452, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6458 ./strace-static-x86_64: Process 6458 attached [pid 6458] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6458] setpgid(0, 0) = 0 [pid 6458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6458] write(3, "1000", 4) = 4 executing program [pid 6458] close(3) = 0 [pid 6458] write(1, "executing program\n", 18) = 18 [pid 6458] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6458] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6458] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6458] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6458] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6458] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6458] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6459]}, 88) = 6459 ./strace-static-x86_64: Process 6459 attached [pid 6458] rt_sigprocmask(SIG_SETMASK, [], [pid 6459] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6455] <... write resumed>) = 16777216 [pid 6459] <... rseq resumed>) = 0 [pid 6455] munmap(0x7fb71c400000, 138412032 [pid 6459] set_robust_list(0x7fb72497a9a0, 24 [pid 6458] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6458] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6459] <... set_robust_list resumed>) = 0 [pid 6459] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6458] <... futex resumed>) = 0 [pid 6459] memfd_create("syzkaller", 0 [pid 6458] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6459] <... memfd_create resumed>) = 3 [pid 6459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6455] <... munmap resumed>) = 0 [pid 6455] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6455] close(3 [pid 6457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6459] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6455] <... close resumed>) = 0 [pid 6455] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6455] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6454] <... futex resumed>) = 0 [pid 6454] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6455] <... futex resumed>) = 0 [pid 6454] <... futex resumed>) = 1 [pid 6455] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6454] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6455] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6455] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6454] <... futex resumed>) = 0 [pid 6454] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6455] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6454] <... futex resumed>) = 0 [pid 6454] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6455] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6455] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6454] <... futex resumed>) = 0 [pid 6455] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6454] exit_group(0 [pid 6455] <... futex resumed>) = ? [pid 6454] <... exit_group resumed>) = ? [pid 6455] +++ exited with 0 +++ [pid 6454] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6454, si_uid=0, si_status=0, si_utime=0, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6460 ./strace-static-x86_64: Process 6460 attached [pid 6460] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6460] setpgid(0, 0) = 0 [pid 6460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6460] write(3, "1000", 4) = 4 [pid 6460] close(3executing program ) = 0 [pid 6460] write(1, "executing program\n", 18) = 18 [pid 6460] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6460] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6460] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6460] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6460] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6460] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6460] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6461 attached => {parent_tid=[6461]}, 88) = 6461 [pid 6461] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6461] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6460] rt_sigprocmask(SIG_SETMASK, [], [pid 6461] rt_sigprocmask(SIG_SETMASK, [], [pid 6460] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6461] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6460] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6461] memfd_create("syzkaller", 0 [pid 6460] <... futex resumed>) = 0 [pid 6461] <... memfd_create resumed>) = 3 [pid 6460] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6457] <... write resumed>) = 16777216 [pid 6457] munmap(0x7fb71c400000, 138412032) = 0 [pid 6461] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6459] <... write resumed>) = 16777216 [pid 6459] munmap(0x7fb71c400000, 138412032 [pid 6457] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6457] close(3 [pid 6459] <... munmap resumed>) = 0 [pid 6459] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6459] close(3) = 0 [pid 6459] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6458] <... futex resumed>) = 0 [pid 6459] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6458] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6459] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6458] <... futex resumed>) = 0 [pid 6459] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6458] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6459] <... futex resumed>) = 0 [pid 6458] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6459] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6458] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6459] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6458] <... futex resumed>) = 0 [pid 6459] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6458] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6459] <... futex resumed>) = 0 [pid 6458] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6459] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6458] exit_group(0 [pid 6459] <... futex resumed>) = ? [pid 6458] <... exit_group resumed>) = ? [pid 6459] +++ exited with 0 +++ [pid 6458] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6458, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6457] <... close resumed>) = 0 [pid 6457] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6457] <... futex resumed>) = 1 [pid 6456] <... futex resumed>) = 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6456] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6462 attached [pid 6457] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6456] <... futex resumed>) = 0 [pid 6462] set_robust_list(0x55556c2036a0, 24 [pid 6457] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6462 [pid 6462] <... set_robust_list resumed>) = 0 [pid 6457] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6456] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6462] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6457] <... futex resumed>) = 0 [pid 6456] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6462] <... prctl resumed>) = 0 [pid 6456] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6462] setpgid(0, 0 [pid 6457] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6456] <... futex resumed>) = 0 [pid 6462] <... setpgid resumed>) = 0 [pid 6462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6457] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6462] <... openat resumed>) = 3 [pid 6457] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6456] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6462] write(3, "1000", 4 [pid 6457] <... futex resumed>) = 0 [pid 6462] <... write resumed>) = 4 [pid 6456] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6462] close(3executing program ) = 0 [pid 6457] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6456] exit_group(0 [pid 6462] write(1, "executing program\n", 18) = 18 [pid 6457] <... futex resumed>) = ? [pid 6456] <... exit_group resumed>) = ? [pid 6462] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6462] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6462] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6462] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6462] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6462] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6457] +++ exited with 0 +++ [pid 6462] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6456] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6456, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=30 /* 0.30 s */} --- ./strace-static-x86_64: Process 6463 attached [pid 6461] <... write resumed>) = 16777216 [pid 6463] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6462] <... clone3 resumed> => {parent_tid=[6463]}, 88) = 6463 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6463] <... rseq resumed>) = 0 [pid 6462] rt_sigprocmask(SIG_SETMASK, [], [pid 6461] munmap(0x7fb71c400000, 138412032 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6463] set_robust_list(0x7fb72497a9a0, 24 [pid 6462] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6463] <... set_robust_list resumed>) = 0 [pid 6462] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6463] rt_sigprocmask(SIG_SETMASK, [], [pid 6462] <... futex resumed>) = 0 [pid 6463] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 6464 attached [pid 6463] memfd_create("syzkaller", 0 [pid 6462] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6464] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6463] <... memfd_create resumed>) = 3 [pid 6461] <... munmap resumed>) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6464 [pid 6464] <... prctl resumed>) = 0 [pid 6463] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6461] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6464] setpgid(0, 0 [pid 6463] <... mmap resumed>) = 0x7fb71c400000 [pid 6461] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6464] <... setpgid resumed>) = 0 [pid 6461] close(3 [pid 6464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6464] write(3, "1000", 4) = 4 [pid 6464] close(3) = 0 [pid 6464] write(1, "executing program\n", 18) = 18 [pid 6464] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6464] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6464] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6464] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6464] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6464] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6464] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6465 attached => {parent_tid=[6465]}, 88) = 6465 [pid 6465] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6465] set_robust_list(0x7fb72497a9a0, 24 [pid 6464] rt_sigprocmask(SIG_SETMASK, [], [pid 6465] <... set_robust_list resumed>) = 0 [pid 6465] rt_sigprocmask(SIG_SETMASK, [], [pid 6464] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6465] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6465] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6464] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6465] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6464] <... futex resumed>) = 0 [pid 6464] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6465] memfd_create("syzkaller", 0) = 3 [pid 6465] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6463] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6461] <... close resumed>) = 0 [pid 6461] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6460] <... futex resumed>) = 0 [pid 6460] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6460] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6461] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6461] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6461] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6460] <... futex resumed>) = 0 [pid 6460] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6461] <... futex resumed>) = 0 [pid 6460] <... futex resumed>) = 1 [pid 6461] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6460] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6461] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6461] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6460] <... futex resumed>) = 0 [pid 6461] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6460] exit_group(0 [pid 6461] <... futex resumed>) = ? [pid 6460] <... exit_group resumed>) = ? [pid 6461] +++ exited with 0 +++ [pid 6460] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6460, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6465] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6466 attached , child_tidptr=0x55556c203690) = 6466 [pid 6466] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6466] setpgid(0, 0) = 0 [pid 6466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6466] write(3, "1000", 4) = 4 [pid 6466] close(3) = 0 [pid 6466] write(1, "executing program\n", 18executing program ) = 18 [pid 6466] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6466] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6466] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6466] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6466] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6466] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6467 attached => {parent_tid=[6467]}, 88) = 6467 [pid 6467] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6466] rt_sigprocmask(SIG_SETMASK, [], [pid 6467] set_robust_list(0x7fb72497a9a0, 24 [pid 6466] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6467] <... set_robust_list resumed>) = 0 [pid 6466] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6467] rt_sigprocmask(SIG_SETMASK, [], [pid 6466] <... futex resumed>) = 0 [pid 6467] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6466] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6467] memfd_create("syzkaller", 0) = 3 [pid 6467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6463] <... write resumed>) = 16777216 [pid 6467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6465] <... write resumed>) = 16777216 [pid 6465] munmap(0x7fb71c400000, 138412032 [pid 6463] munmap(0x7fb71c400000, 138412032 [pid 6465] <... munmap resumed>) = 0 [pid 6465] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6463] <... munmap resumed>) = 0 [pid 6465] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6465] close(3 [pid 6463] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6463] close(3 [pid 6467] <... write resumed>) = 16777216 [pid 6465] <... close resumed>) = 0 [pid 6467] munmap(0x7fb71c400000, 138412032 [pid 6465] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6464] <... futex resumed>) = 0 [pid 6464] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6465] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6464] <... futex resumed>) = 0 [pid 6465] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6464] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6465] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6464] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6465] <... futex resumed>) = 0 [pid 6464] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6465] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6464] <... futex resumed>) = 0 [pid 6463] <... close resumed>) = 0 [pid 6465] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6464] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6465] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6464] <... futex resumed>) = 0 [pid 6464] exit_group(0) = ? [pid 6467] <... munmap resumed>) = 0 [pid 6463] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6467] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6463] <... futex resumed>) = 1 [pid 6462] <... futex resumed>) = 0 [pid 6467] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6463] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6462] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6462] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6467] close(3 [pid 6463] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6463] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6465] +++ exited with 0 +++ [pid 6464] +++ exited with 0 +++ [pid 6463] <... futex resumed>) = 1 [pid 6462] <... futex resumed>) = 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6464, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6462] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6463] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6462] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6463] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6463] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6462] <... futex resumed>) = 0 [pid 6463] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6462] exit_group(0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6463] <... futex resumed>) = ? [pid 6462] <... exit_group resumed>) = ? [pid 6463] +++ exited with 0 +++ [pid 6462] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6462, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6468 attached [pid 6468] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6468 [pid 6468] <... set_robust_list resumed>) = 0 [pid 6468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6468] setpgid(0, 0) = 0 [pid 6468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6468] write(3, "1000", 4) = 4 [pid 6468] close(3) = 0 executing program [pid 6468] write(1, "executing program\n", 18) = 18 [pid 6468] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6468] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6468] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6468] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6468] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6468] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6468] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6468] <... clone3 resumed> => {parent_tid=[6469]}, 88) = 6469 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6470 attached ./strace-static-x86_64: Process 6469 attached [pid 6468] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6470] set_robust_list(0x55556c2036a0, 24 [pid 6469] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6468] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6470] <... set_robust_list resumed>) = 0 [pid 6469] <... rseq resumed>) = 0 [pid 6468] <... futex resumed>) = 0 [pid 6468] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6470 [pid 6470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6469] set_robust_list(0x7fb72497a9a0, 24 [pid 6470] <... prctl resumed>) = 0 [pid 6469] <... set_robust_list resumed>) = 0 [pid 6470] setpgid(0, 0 [pid 6469] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6470] <... setpgid resumed>) = 0 [pid 6469] memfd_create("syzkaller", 0 [pid 6470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6469] <... memfd_create resumed>) = 3 [pid 6470] <... openat resumed>) = 3 [pid 6469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6470] write(3, "1000", 4executing program ) = 4 [pid 6470] close(3) = 0 [pid 6470] write(1, "executing program\n", 18) = 18 [pid 6470] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6470] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6470] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6470] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6470] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6470] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6470] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6471 attached => {parent_tid=[6471]}, 88) = 6471 [pid 6470] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6470] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6470] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6471] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6471] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6471] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6471] memfd_create("syzkaller", 0) = 3 [pid 6471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6467] <... close resumed>) = 0 [pid 6467] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6466] <... futex resumed>) = 0 [pid 6467] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6466] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6467] <... futex resumed>) = 0 [pid 6466] <... futex resumed>) = 1 [pid 6467] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6466] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6467] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6467] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6466] <... futex resumed>) = 0 [pid 6467] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6466] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6467] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6466] <... futex resumed>) = 0 [pid 6467] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6466] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6467] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6467] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6466] <... futex resumed>) = 0 [pid 6467] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6466] exit_group(0 [pid 6469] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6467] <... futex resumed>) = ? [pid 6466] <... exit_group resumed>) = ? [pid 6467] +++ exited with 0 +++ [pid 6466] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6466, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6472 attached , child_tidptr=0x55556c203690) = 6472 [pid 6472] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6472] setpgid(0, 0) = 0 [pid 6472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6472] write(3, "1000", 4) = 4 executing program [pid 6472] close(3) = 0 [pid 6472] write(1, "executing program\n", 18) = 18 [pid 6472] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6472] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6472] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6472] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6472] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6472] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6472] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6473 attached => {parent_tid=[6473]}, 88) = 6473 [pid 6473] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6472] rt_sigprocmask(SIG_SETMASK, [], [pid 6473] <... rseq resumed>) = 0 [pid 6472] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6473] set_robust_list(0x7fb72497a9a0, 24 [pid 6472] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6473] <... set_robust_list resumed>) = 0 [pid 6472] <... futex resumed>) = 0 [pid 6473] rt_sigprocmask(SIG_SETMASK, [], [pid 6472] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6473] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6473] memfd_create("syzkaller", 0) = 3 [pid 6473] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6471] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6473] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6471] <... write resumed>) = 16777216 [pid 6471] munmap(0x7fb71c400000, 138412032) = 0 [pid 6471] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6471] close(3 [pid 6469] <... write resumed>) = 16777216 [pid 6469] munmap(0x7fb71c400000, 138412032) = 0 [pid 6469] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6469] close(3 [pid 6471] <... close resumed>) = 0 [pid 6471] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6471] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6470] <... futex resumed>) = 0 [pid 6470] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6471] <... futex resumed>) = 0 [pid 6470] <... futex resumed>) = 1 [pid 6471] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6470] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6471] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6471] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6470] <... futex resumed>) = 0 [pid 6471] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6470] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6470] <... futex resumed>) = 0 [pid 6471] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6470] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6471] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6471] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6470] <... futex resumed>) = 0 [pid 6471] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6470] exit_group(0 [pid 6471] <... futex resumed>) = ? [pid 6470] <... exit_group resumed>) = ? [pid 6471] +++ exited with 0 +++ [pid 6470] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6470, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6474 attached [pid 6473] <... write resumed>) = 16777216 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6474 [pid 6473] munmap(0x7fb71c400000, 138412032 [pid 6474] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6474] setpgid(0, 0) = 0 [pid 6474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6474] write(3, "1000", 4) = 4 [pid 6474] close(3) = 0 executing program [pid 6474] write(1, "executing program\n", 18) = 18 [pid 6474] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6474] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6474] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6474] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6474] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6473] <... munmap resumed>) = 0 [pid 6474] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6473] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6474] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6473] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 6475 attached [pid 6474] <... clone3 resumed> => {parent_tid=[6475]}, 88) = 6475 [pid 6475] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6474] rt_sigprocmask(SIG_SETMASK, [], [pid 6473] close(3 [pid 6475] <... rseq resumed>) = 0 [pid 6474] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6475] set_robust_list(0x7fb72497a9a0, 24 [pid 6474] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6475] <... set_robust_list resumed>) = 0 [pid 6475] rt_sigprocmask(SIG_SETMASK, [], [pid 6474] <... futex resumed>) = 0 [pid 6475] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6474] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6475] memfd_create("syzkaller", 0) = 3 [pid 6469] <... close resumed>) = 0 [pid 6475] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6469] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6468] <... futex resumed>) = 0 [pid 6469] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6468] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6469] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6468] <... futex resumed>) = 0 [pid 6469] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6468] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6469] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6469] <... futex resumed>) = 0 [pid 6468] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6469] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6468] <... futex resumed>) = 0 [pid 6469] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6468] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6469] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6469] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6468] exit_group(0) = ? [pid 6469] <... futex resumed>) = ? [pid 6469] +++ exited with 0 +++ [pid 6468] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6468, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6476 ./strace-static-x86_64: Process 6476 attached [pid 6476] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6476] setpgid(0, 0) = 0 [pid 6476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6476] write(3, "1000", 4) = 4 [pid 6476] close(3) = 0 [pid 6476] write(1, "executing program\n", 18) = 18 [pid 6476] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6476] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6476] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6476] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6476] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6476] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6476] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}executing program => {parent_tid=[6477]}, 88) = 6477 [pid 6476] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6476] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6476] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6477 attached [pid 6477] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6477] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6477] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6477] memfd_create("syzkaller", 0) = 3 [pid 6477] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6475] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6477] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6473] <... close resumed>) = 0 [pid 6473] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6472] <... futex resumed>) = 0 [pid 6473] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6472] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6472] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6473] <... futex resumed>) = 0 [pid 6473] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6473] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6472] <... futex resumed>) = 0 [pid 6473] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6472] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6473] <... futex resumed>) = 0 [pid 6472] <... futex resumed>) = 1 [pid 6472] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6473] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6473] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6472] <... futex resumed>) = 0 [pid 6473] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6472] exit_group(0) = ? [pid 6473] <... futex resumed>) = ? [pid 6473] +++ exited with 0 +++ [pid 6472] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6472, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6478 ./strace-static-x86_64: Process 6478 attached [pid 6478] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6478] setpgid(0, 0) = 0 [pid 6478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6478] write(3, "1000", 4) = 4 [pid 6478] close(3) = 0 executing program [pid 6478] write(1, "executing program\n", 18) = 18 [pid 6478] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6478] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6478] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6478] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6478] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6478] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6478] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6479 attached => {parent_tid=[6479]}, 88) = 6479 [pid 6478] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6478] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6478] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6479] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6479] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6479] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6479] memfd_create("syzkaller", 0) = 3 [pid 6479] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6475] <... write resumed>) = 16777216 [pid 6475] munmap(0x7fb71c400000, 138412032) = 0 [pid 6475] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6475] close(3 [pid 6479] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6477] <... write resumed>) = 16777216 [pid 6477] munmap(0x7fb71c400000, 138412032) = 0 [pid 6477] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6477] close(3 [pid 6479] <... write resumed>) = 16777216 [pid 6475] <... close resumed>) = 0 [pid 6479] munmap(0x7fb71c400000, 138412032 [pid 6475] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6474] <... futex resumed>) = 0 [pid 6474] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6474] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6475] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6475] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6474] <... futex resumed>) = 0 [pid 6475] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6479] <... munmap resumed>) = 0 [pid 6474] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6475] <... futex resumed>) = 0 [pid 6474] <... futex resumed>) = 1 [pid 6475] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6474] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6475] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6475] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6474] <... futex resumed>) = 0 [pid 6475] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6474] exit_group(0 [pid 6475] <... futex resumed>) = ? [pid 6474] <... exit_group resumed>) = ? [pid 6475] +++ exited with 0 +++ [pid 6479] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6474] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6474, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=40 /* 0.40 s */} --- [pid 6479] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6477] <... close resumed>) = 0 [pid 6479] close(3 [pid 6477] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6477] <... futex resumed>) = 1 [pid 6476] <... futex resumed>) = 0 [pid 6477] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6476] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6476] <... futex resumed>) = 0 [pid 6476] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6477] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6477] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6476] <... futex resumed>) = 0 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6477] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6476] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6480 attached [pid 6477] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6476] <... futex resumed>) = 0 [pid 6480] set_robust_list(0x55556c2036a0, 24 [pid 6476] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6477] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6476] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6477] <... futex resumed>) = 0 [pid 6476] exit_group(0 [pid 6480] <... set_robust_list resumed>) = 0 [pid 6476] <... exit_group resumed>) = ? [pid 6480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6477] +++ exited with 0 +++ [pid 6476] +++ exited with 0 +++ [pid 6480] <... prctl resumed>) = 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6476, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 6480] setpgid(0, 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6480 [pid 6480] <... setpgid resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6481 attached [pid 6480] <... openat resumed>) = 3 [pid 6481] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6481 [pid 6481] <... set_robust_list resumed>) = 0 [pid 6481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6481] setpgid(0, 0) = 0 [pid 6481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6481] write(3, "1000", 4 [pid 6480] write(3, "1000", 4 [pid 6481] <... write resumed>) = 4 [pid 6480] <... write resumed>) = 4 [pid 6481] close(3) = 0 [pid 6480] close(3executing program executing program ) = 0 [pid 6481] write(1, "executing program\n", 18 [pid 6480] write(1, "executing program\n", 18 [pid 6481] <... write resumed>) = 18 [pid 6480] <... write resumed>) = 18 [pid 6481] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6480] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6481] <... futex resumed>) = 0 [pid 6481] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6480] <... futex resumed>) = 0 [pid 6480] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6481] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6481] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6480] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6481] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6481] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6480] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6481] <... mmap resumed>) = 0x7fb72495a000 [pid 6480] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6481] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6480] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6481] <... mprotect resumed>) = 0 [pid 6480] <... mmap resumed>) = 0x7fb72495a000 [pid 6481] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6480] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6481] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6480] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6481] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6482 attached [pid 6480] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6480] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6481] <... clone3 resumed> => {parent_tid=[6482]}, 88) = 6482 ./strace-static-x86_64: Process 6483 attached [pid 6481] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6483] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6481] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6483] <... rseq resumed>) = 0 [pid 6481] <... futex resumed>) = 0 [pid 6480] <... clone3 resumed> => {parent_tid=[6483]}, 88) = 6483 [pid 6483] set_robust_list(0x7fb72497a9a0, 24 [pid 6481] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6480] rt_sigprocmask(SIG_SETMASK, [], [pid 6483] <... set_robust_list resumed>) = 0 [pid 6480] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6483] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6480] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6483] memfd_create("syzkaller", 0 [pid 6480] <... futex resumed>) = 0 [pid 6480] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6483] <... memfd_create resumed>) = 3 [pid 6482] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6483] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6482] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6482] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6482] memfd_create("syzkaller", 0) = 3 [pid 6482] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6483] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6479] <... close resumed>) = 0 [pid 6479] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6479] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6478] <... futex resumed>) = 0 [pid 6478] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6479] <... futex resumed>) = 0 [pid 6478] <... futex resumed>) = 1 [pid 6479] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6482] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6478] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6479] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6479] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6478] <... futex resumed>) = 0 [pid 6479] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6478] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6479] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6478] <... futex resumed>) = 0 [pid 6479] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6478] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6479] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6479] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6478] <... futex resumed>) = 0 [pid 6479] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6478] exit_group(0 [pid 6479] <... futex resumed>) = ? [pid 6478] <... exit_group resumed>) = ? [pid 6479] +++ exited with 0 +++ [pid 6478] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6478, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6484 attached , child_tidptr=0x55556c203690) = 6484 [pid 6484] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6484] setpgid(0, 0) = 0 [pid 6484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6484] write(3, "1000", 4) = 4 [pid 6484] close(3) = 0 executing program [pid 6484] write(1, "executing program\n", 18) = 18 [pid 6484] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6484] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6484] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6484] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6484] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6484] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6484] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6485 attached => {parent_tid=[6485]}, 88) = 6485 [pid 6485] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6484] rt_sigprocmask(SIG_SETMASK, [], [pid 6485] <... rseq resumed>) = 0 [pid 6484] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6485] set_robust_list(0x7fb72497a9a0, 24 [pid 6484] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6485] <... set_robust_list resumed>) = 0 [pid 6484] <... futex resumed>) = 0 [pid 6485] rt_sigprocmask(SIG_SETMASK, [], [pid 6484] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6485] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6485] memfd_create("syzkaller", 0) = 3 [pid 6485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6483] <... write resumed>) = 16777216 [pid 6485] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6483] munmap(0x7fb71c400000, 138412032 [pid 6482] <... write resumed>) = 16777216 [pid 6482] munmap(0x7fb71c400000, 138412032 [pid 6483] <... munmap resumed>) = 0 [pid 6482] <... munmap resumed>) = 0 [pid 6482] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6483] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6482] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6483] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6482] close(3 [pid 6483] close(3 [pid 6485] <... write resumed>) = 16777216 [pid 6485] munmap(0x7fb71c400000, 138412032) = 0 [pid 6482] <... close resumed>) = 0 [pid 6485] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6483] <... close resumed>) = 0 [pid 6482] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6481] <... futex resumed>) = 0 [pid 6485] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6483] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6482] <... futex resumed>) = 1 [pid 6481] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6483] <... futex resumed>) = 1 [pid 6481] <... futex resumed>) = 0 [pid 6480] <... futex resumed>) = 0 [pid 6485] close(3 [pid 6483] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6482] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6481] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6480] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6483] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6482] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6480] <... futex resumed>) = 0 [pid 6482] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6480] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6483] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6482] <... futex resumed>) = 1 [pid 6482] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6481] <... futex resumed>) = 0 [pid 6483] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6481] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6482] <... futex resumed>) = 0 [pid 6481] <... futex resumed>) = 1 [pid 6483] <... futex resumed>) = 1 [pid 6482] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6480] <... futex resumed>) = 0 [pid 6483] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6481] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6480] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6483] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6482] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6482] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6480] <... futex resumed>) = 0 [pid 6483] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6482] <... futex resumed>) = 1 [pid 6481] <... futex resumed>) = 0 [pid 6483] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6482] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6481] exit_group(0 [pid 6480] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6483] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6482] <... futex resumed>) = ? [pid 6481] <... exit_group resumed>) = ? [pid 6480] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6483] <... futex resumed>) = 0 [pid 6482] +++ exited with 0 +++ [pid 6483] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6480] exit_group(0 [pid 6483] <... futex resumed>) = ? [pid 6480] <... exit_group resumed>) = ? [pid 6483] +++ exited with 0 +++ [pid 6480] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6480, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6481] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6481, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5872] <... restart_syscall resumed>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6486 attached [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6487 attached [pid 6486] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6486 [pid 6486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6486] setpgid(0, 0) = 0 [pid 6486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6487 [pid 6486] <... openat resumed>) = 3 [pid 6486] write(3, "1000", 4 [pid 6487] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6486] <... write resumed>) = 4 [pid 6487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6486] close(3) = 0 executing program [pid 6487] <... prctl resumed>) = 0 [pid 6486] write(1, "executing program\n", 18 [pid 6487] setpgid(0, 0 [pid 6486] <... write resumed>) = 18 [pid 6487] <... setpgid resumed>) = 0 [pid 6486] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6486] <... futex resumed>) = 0 [pid 6486] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6486] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6487] <... openat resumed>) = 3 [pid 6487] write(3, "1000", 4 [pid 6486] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6487] <... write resumed>) = 4 [pid 6486] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6487] close(3 [pid 6486] <... mmap resumed>) = 0x7fb72495a000 [pid 6487] <... close resumed>) = 0 [pid 6487] write(1, "executing program\n", 18executing program [pid 6486] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6487] <... write resumed>) = 18 [pid 6486] <... mprotect resumed>) = 0 [pid 6487] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6486] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6487] <... futex resumed>) = 0 [pid 6487] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6486] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6487] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6486] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6487] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 6488 attached ) = 0x7fb72495a000 [pid 6487] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6486] <... clone3 resumed> => {parent_tid=[6488]}, 88) = 6488 [pid 6486] rt_sigprocmask(SIG_SETMASK, [], [pid 6487] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6486] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6486] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6487] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6486] <... futex resumed>) = 0 [pid 6486] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6487] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6489 attached [pid 6488] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6487] <... clone3 resumed> => {parent_tid=[6489]}, 88) = 6489 [pid 6487] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6487] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6489] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6488] <... rseq resumed>) = 0 [pid 6489] <... rseq resumed>) = 0 [pid 6488] set_robust_list(0x7fb72497a9a0, 24 [pid 6489] set_robust_list(0x7fb72497a9a0, 24 [pid 6488] <... set_robust_list resumed>) = 0 [pid 6489] <... set_robust_list resumed>) = 0 [pid 6488] rt_sigprocmask(SIG_SETMASK, [], [pid 6489] rt_sigprocmask(SIG_SETMASK, [], [pid 6488] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6489] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6487] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6488] memfd_create("syzkaller", 0 [pid 6489] memfd_create("syzkaller", 0) = 3 [pid 6488] <... memfd_create resumed>) = 3 [pid 6489] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6489] <... mmap resumed>) = 0x7fb71c400000 [pid 6488] <... mmap resumed>) = 0x7fb71c400000 [pid 6485] <... close resumed>) = 0 [pid 6485] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6484] <... futex resumed>) = 0 [pid 6485] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6484] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6485] <... futex resumed>) = 0 [pid 6485] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6484] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6485] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6485] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6484] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6485] <... futex resumed>) = 0 [pid 6484] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6485] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6484] <... futex resumed>) = 0 [pid 6485] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6484] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6485] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6484] <... futex resumed>) = 0 [pid 6485] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6484] exit_group(0 [pid 6485] <... futex resumed>) = ? [pid 6484] <... exit_group resumed>) = ? [pid 6485] +++ exited with 0 +++ [pid 6484] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6484, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6490 attached , child_tidptr=0x55556c203690) = 6490 [pid 6490] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6490] setpgid(0, 0) = 0 [pid 6490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6490] write(3, "1000", 4) = 4 [pid 6490] close(3) = 0 executing program [pid 6490] write(1, "executing program\n", 18) = 18 [pid 6490] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6490] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6490] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6490] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6490] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6490] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6491 attached [pid 6491] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6491] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6491] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6491] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6490] <... clone3 resumed> => {parent_tid=[6491]}, 88) = 6491 [pid 6490] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6490] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6490] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6491] <... futex resumed>) = 0 [pid 6491] memfd_create("syzkaller", 0) = 3 [pid 6491] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6489] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6488] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6491] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6488] <... write resumed>) = 16777216 [pid 6488] munmap(0x7fb71c400000, 138412032) = 0 [pid 6488] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6488] close(3 [pid 6489] <... write resumed>) = 16777216 [pid 6489] munmap(0x7fb71c400000, 138412032) = 0 [pid 6489] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6489] close(3 [pid 6488] <... close resumed>) = 0 [pid 6488] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6486] <... futex resumed>) = 0 [pid 6488] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6486] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6488] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6486] <... futex resumed>) = 0 [pid 6488] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6486] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6488] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6488] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6486] <... futex resumed>) = 0 [pid 6488] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6486] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6488] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6486] <... futex resumed>) = 0 [pid 6488] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6486] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6488] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6488] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6486] <... futex resumed>) = 0 [pid 6488] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6486] exit_group(0 [pid 6488] <... futex resumed>) = ? [pid 6486] <... exit_group resumed>) = ? [pid 6488] +++ exited with 0 +++ [pid 6486] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6486, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6491] <... write resumed>) = 16777216 [pid 6491] munmap(0x7fb71c400000, 138412032 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6492 attached [pid 6492] set_robust_list(0x55556c2036a0, 24 [pid 6491] <... munmap resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6492 [pid 6492] <... set_robust_list resumed>) = 0 [pid 6491] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6492] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6491] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6492] <... prctl resumed>) = 0 [pid 6492] setpgid(0, 0) = 0 [pid 6491] close(3 [pid 6492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6492] write(3, "1000", 4) = 4 [pid 6492] close(3executing program ) = 0 [pid 6492] write(1, "executing program\n", 18) = 18 [pid 6492] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6492] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6492] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6492] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6492] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6492] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6492] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6493 attached [pid 6493] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6492] <... clone3 resumed> => {parent_tid=[6493]}, 88) = 6493 [pid 6493] <... rseq resumed>) = 0 [pid 6492] rt_sigprocmask(SIG_SETMASK, [], [pid 6493] set_robust_list(0x7fb72497a9a0, 24 [pid 6492] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6493] <... set_robust_list resumed>) = 0 [pid 6492] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6493] rt_sigprocmask(SIG_SETMASK, [], [pid 6492] <... futex resumed>) = 0 [pid 6493] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6492] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6493] memfd_create("syzkaller", 0) = 3 [pid 6493] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6489] <... close resumed>) = 0 [pid 6489] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6487] <... futex resumed>) = 0 [pid 6489] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6487] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6489] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6487] <... futex resumed>) = 0 [pid 6489] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6487] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6489] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6489] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6487] <... futex resumed>) = 0 [pid 6489] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6487] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6489] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6487] <... futex resumed>) = 0 [pid 6489] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6487] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6489] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6489] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6487] <... futex resumed>) = 0 [pid 6489] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6487] exit_group(0 [pid 6489] <... futex resumed>) = ? [pid 6487] <... exit_group resumed>) = ? [pid 6489] +++ exited with 0 +++ [pid 6487] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6487, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=39 /* 0.39 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6494 attached , child_tidptr=0x55556c203690) = 6494 [pid 6494] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6494] setpgid(0, 0) = 0 [pid 6494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6494] write(3, "1000", 4) = 4 [pid 6494] close(3) = 0 [pid 6494] write(1, "executing program\n", 18) = 18 [pid 6494] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6494] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6494] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6494] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6494] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6494] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6494] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6495 attached [pid 6495] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6494] <... clone3 resumed> => {parent_tid=[6495]}, 88) = 6495 [pid 6495] <... rseq resumed>) = 0 [pid 6494] rt_sigprocmask(SIG_SETMASK, [], [pid 6495] set_robust_list(0x7fb72497a9a0, 24 [pid 6494] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6495] <... set_robust_list resumed>) = 0 [pid 6494] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6495] rt_sigprocmask(SIG_SETMASK, [], [pid 6494] <... futex resumed>) = 0 [pid 6495] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6494] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6495] memfd_create("syzkaller", 0) = 3 [pid 6495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6493] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6491] <... close resumed>) = 0 [pid 6491] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6490] <... futex resumed>) = 0 [pid 6491] <... futex resumed>) = 1 [pid 6491] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6490] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6491] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6490] <... futex resumed>) = 0 [pid 6491] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6490] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6491] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6491] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6490] <... futex resumed>) = 0 [pid 6490] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6491] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6490] <... futex resumed>) = 0 [pid 6491] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6490] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6491] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6490] <... futex resumed>) = 0 [pid 6490] exit_group(0) = ? [pid 6491] +++ exited with 0 +++ [pid 6490] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6490, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6496 attached , child_tidptr=0x55556c203690) = 6496 [pid 6496] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6496] setpgid(0, 0) = 0 [pid 6496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6496] write(3, "1000", 4) = 4 [pid 6496] close(3) = 0 [pid 6496] write(1, "executing program\n", 18) = 18 [pid 6496] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6496] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6496] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6496] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6496] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6496] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6496] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6497 attached => {parent_tid=[6497]}, 88) = 6497 [pid 6497] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6496] rt_sigprocmask(SIG_SETMASK, [], [pid 6497] <... rseq resumed>) = 0 [pid 6496] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6497] set_robust_list(0x7fb72497a9a0, 24 [pid 6496] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6497] <... set_robust_list resumed>) = 0 [pid 6496] <... futex resumed>) = 0 [pid 6497] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6496] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6497] memfd_create("syzkaller", 0) = 3 [pid 6497] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6495] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6493] <... write resumed>) = 16777216 [pid 6493] munmap(0x7fb71c400000, 138412032) = 0 [pid 6493] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6493] close(3 [pid 6497] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6493] <... close resumed>) = 0 [pid 6493] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6492] <... futex resumed>) = 0 [pid 6493] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6492] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6493] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6492] <... futex resumed>) = 0 [pid 6493] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6492] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6493] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6493] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6492] <... futex resumed>) = 0 [pid 6493] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6492] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6493] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6492] <... futex resumed>) = 0 [pid 6493] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6492] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6493] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6493] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6492] <... futex resumed>) = 0 [pid 6493] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6492] exit_group(0 [pid 6493] <... futex resumed>) = ? [pid 6492] <... exit_group resumed>) = ? [pid 6493] +++ exited with 0 +++ [pid 6492] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6492, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6495] <... write resumed>) = 16777216 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6498 attached [pid 6498] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6498 [pid 6498] <... set_robust_list resumed>) = 0 [pid 6495] munmap(0x7fb71c400000, 138412032 [pid 6498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6498] setpgid(0, 0) = 0 [pid 6498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6498] write(3, "1000", 4 [pid 6495] <... munmap resumed>) = 0 [pid 6498] <... write resumed>) = 4 [pid 6495] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6498] close(3) = 0 [pid 6495] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6495] close(3executing program [pid 6498] write(1, "executing program\n", 18) = 18 [pid 6498] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6498] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6498] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6498] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6497] <... write resumed>) = 16777216 [pid 6498] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6497] munmap(0x7fb71c400000, 138412032 [pid 6498] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6498] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6499 attached => {parent_tid=[6499]}, 88) = 6499 [pid 6498] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6498] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6498] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6499] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6499] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6499] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6499] memfd_create("syzkaller", 0 [pid 6497] <... munmap resumed>) = 0 [pid 6499] <... memfd_create resumed>) = 3 [pid 6497] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6499] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6497] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6497] close(3 [pid 6495] <... close resumed>) = 0 [pid 6495] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6494] <... futex resumed>) = 0 [pid 6495] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6494] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6495] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6495] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6494] <... futex resumed>) = 0 [pid 6495] <... futex resumed>) = 0 [pid 6494] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6494] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6495] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6494] <... futex resumed>) = 0 [pid 6495] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6494] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6495] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6494] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6495] <... futex resumed>) = 0 [pid 6494] exit_group(0 [pid 6495] ???() = ? [pid 6494] <... exit_group resumed>) = ? [pid 6495] +++ exited with 0 +++ [pid 6494] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6494, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6500 attached , child_tidptr=0x55556c203690) = 6500 [pid 6500] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6500] setpgid(0, 0) = 0 [pid 6500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6500] write(3, "1000", 4) = 4 [pid 6500] close(3) = 0 [pid 6500] write(1, "executing program\n", 18executing program ) = 18 [pid 6500] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6500] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6500] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6500] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6500] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6500] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6499] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6500] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6497] <... close resumed>) = 0 [pid 6497] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6501 attached [pid 6500] <... clone3 resumed> => {parent_tid=[6501]}, 88) = 6501 [pid 6497] <... futex resumed>) = 1 [pid 6496] <... futex resumed>) = 0 [pid 6501] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6497] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6496] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6501] <... rseq resumed>) = 0 [pid 6500] rt_sigprocmask(SIG_SETMASK, [], [pid 6497] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6496] <... futex resumed>) = 0 [pid 6501] set_robust_list(0x7fb72497a9a0, 24 [pid 6500] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6497] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6496] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6501] <... set_robust_list resumed>) = 0 [pid 6500] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6497] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6500] <... futex resumed>) = 0 [pid 6501] rt_sigprocmask(SIG_SETMASK, [], [pid 6500] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6497] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6501] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6497] <... futex resumed>) = 1 [pid 6496] <... futex resumed>) = 0 [pid 6497] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6496] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6497] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6496] <... futex resumed>) = 0 [pid 6501] memfd_create("syzkaller", 0 [pid 6497] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6496] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6497] <... futex resumed>) = 0 [pid 6496] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6496] exit_group(0) = ? [pid 6497] +++ exited with 0 +++ [pid 6496] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6496, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6502 attached [pid 6502] set_robust_list(0x55556c2036a0, 24 [pid 6501] <... memfd_create resumed>) = 3 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6502 [pid 6502] <... set_robust_list resumed>) = 0 [pid 6501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6501] <... mmap resumed>) = 0x7fb71c400000 [pid 6502] <... prctl resumed>) = 0 [pid 6502] setpgid(0, 0) = 0 [pid 6502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6502] write(3, "1000", 4) = 4 [pid 6502] close(3) = 0 executing program [pid 6502] write(1, "executing program\n", 18) = 18 [pid 6502] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6502] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6502] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6502] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6502] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6502] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6502] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6503]}, 88) = 6503 [pid 6502] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6502] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6502] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6503 attached [pid 6503] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6503] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6503] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6503] memfd_create("syzkaller", 0) = 3 [pid 6503] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6501] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6499] <... write resumed>) = 16777216 [pid 6499] munmap(0x7fb71c400000, 138412032 [pid 6503] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6499] <... munmap resumed>) = 0 [pid 6499] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6499] close(3 [pid 6501] <... write resumed>) = 16777216 [pid 6501] munmap(0x7fb71c400000, 138412032) = 0 [pid 6501] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6501] close(3 [pid 6499] <... close resumed>) = 0 [pid 6499] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6498] <... futex resumed>) = 0 [pid 6499] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6498] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6498] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6499] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6499] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6498] <... futex resumed>) = 0 [pid 6499] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6498] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6498] <... futex resumed>) = 0 [pid 6498] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6499] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6499] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6498] <... futex resumed>) = 0 [pid 6503] <... write resumed>) = 16777216 [pid 6499] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6503] munmap(0x7fb71c400000, 138412032 [pid 6498] exit_group(0 [pid 6499] <... futex resumed>) = ? [pid 6498] <... exit_group resumed>) = ? [pid 6499] +++ exited with 0 +++ [pid 6498] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6498, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6505 attached , child_tidptr=0x55556c203690) = 6505 [pid 6505] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6505] setpgid(0, 0) = 0 [pid 6505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6503] <... munmap resumed>) = 0 [pid 6505] write(3, "1000", 4) = 4 [pid 6505] close(3executing program ) = 0 [pid 6505] write(1, "executing program\n", 18) = 18 [pid 6505] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6505] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6505] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6505] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6505] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6505] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6503] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6505] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6503] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6505] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6506 attached [pid 6506] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6505] <... clone3 resumed> => {parent_tid=[6506]}, 88) = 6506 [pid 6503] close(3 [pid 6501] <... close resumed>) = 0 [pid 6506] <... rseq resumed>) = 0 [pid 6506] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6505] rt_sigprocmask(SIG_SETMASK, [], [pid 6506] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6506] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6501] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6505] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6501] <... futex resumed>) = 1 [pid 6500] <... futex resumed>) = 0 [pid 6505] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6501] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6500] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6506] <... futex resumed>) = 0 [pid 6505] <... futex resumed>) = 1 [pid 6501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6500] <... futex resumed>) = 0 [pid 6505] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6501] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6500] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6506] memfd_create("syzkaller", 0 [pid 6501] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6506] <... memfd_create resumed>) = 3 [pid 6501] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6500] <... futex resumed>) = 0 [pid 6506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6501] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6500] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6506] <... mmap resumed>) = 0x7fb71c400000 [pid 6501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6500] <... futex resumed>) = 0 [pid 6501] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6500] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6501] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6501] <... futex resumed>) = 0 [pid 6500] exit_group(0) = ? [pid 6501] +++ exited with 0 +++ [pid 6500] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6500, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6507 attached , child_tidptr=0x55556c203690) = 6507 [pid 6507] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6507] setpgid(0, 0) = 0 [pid 6507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6507] write(3, "1000", 4) = 4 [pid 6507] close(3executing program ) = 0 [pid 6507] write(1, "executing program\n", 18) = 18 [pid 6507] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6507] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6507] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6507] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6507] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6507] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6507] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6508 attached [pid 6508] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6507] <... clone3 resumed> => {parent_tid=[6508]}, 88) = 6508 [pid 6508] <... rseq resumed>) = 0 [pid 6507] rt_sigprocmask(SIG_SETMASK, [], [pid 6508] set_robust_list(0x7fb72497a9a0, 24 [pid 6507] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6508] <... set_robust_list resumed>) = 0 [pid 6507] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] rt_sigprocmask(SIG_SETMASK, [], [pid 6507] <... futex resumed>) = 0 [pid 6508] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6507] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6508] memfd_create("syzkaller", 0) = 3 [pid 6508] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6506] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6503] <... close resumed>) = 0 [pid 6503] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6502] <... futex resumed>) = 0 [pid 6503] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6502] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6503] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6502] <... futex resumed>) = 0 [pid 6503] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6502] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6502] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6502] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6503] <... futex resumed>) = 1 [pid 6502] <... futex resumed>) = 0 [pid 6503] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6503] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6503] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6502] exit_group(0 [pid 6503] <... futex resumed>) = ? [pid 6502] <... exit_group resumed>) = ? [pid 6503] +++ exited with 0 +++ [pid 6502] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6502, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6509 ./strace-static-x86_64: Process 6509 attached [pid 6509] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6509] setpgid(0, 0) = 0 [pid 6509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6509] write(3, "1000", 4) = 4 executing program [pid 6509] close(3) = 0 [pid 6509] write(1, "executing program\n", 18) = 18 [pid 6509] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6509] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6508] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6509] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6509] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6509] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6509] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6509] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6510 attached => {parent_tid=[6510]}, 88) = 6510 [pid 6510] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6509] rt_sigprocmask(SIG_SETMASK, [], [pid 6510] <... rseq resumed>) = 0 [pid 6509] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6510] set_robust_list(0x7fb72497a9a0, 24 [pid 6509] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6510] <... set_robust_list resumed>) = 0 [pid 6510] rt_sigprocmask(SIG_SETMASK, [], [pid 6509] <... futex resumed>) = 0 [pid 6510] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6509] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6510] memfd_create("syzkaller", 0) = 3 [pid 6510] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6510] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6506] <... write resumed>) = 16777216 [pid 6506] munmap(0x7fb71c400000, 138412032) = 0 [pid 6506] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6506] close(3 [pid 6508] <... write resumed>) = 16777216 [pid 6508] munmap(0x7fb71c400000, 138412032) = 0 [pid 6508] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6508] close(3 [pid 6506] <... close resumed>) = 0 [pid 6506] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6506] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6505] <... futex resumed>) = 0 [pid 6505] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6506] <... futex resumed>) = 0 [pid 6505] <... futex resumed>) = 1 [pid 6506] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6505] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6506] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6506] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6505] <... futex resumed>) = 0 [pid 6505] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6506] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6505] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6506] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6506] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6506] <... futex resumed>) = 0 [pid 6506] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6505] exit_group(0) = ? [pid 6506] <... futex resumed>) = ? [pid 6506] +++ exited with 0 +++ [pid 6505] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6505, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=38 /* 0.38 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6513 attached [pid 6513] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6513] setpgid(0, 0) = 0 [pid 6513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6513] write(3, "1000", 4) = 4 [pid 6513] close(3) = 0 executing program [pid 6513] write(1, "executing program\n", 18) = 18 [pid 6513] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6513 [pid 6513] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6513] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6513] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6513] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6513] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6513] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6514 attached => {parent_tid=[6514]}, 88) = 6514 [pid 6513] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6513] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6513] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6514] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6514] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6514] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6514] memfd_create("syzkaller", 0) = 3 [pid 6514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6510] <... write resumed>) = 16777216 [pid 6510] munmap(0x7fb71c400000, 138412032) = 0 [pid 6510] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6510] close(3 [pid 6508] <... close resumed>) = 0 [pid 6508] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6507] <... futex resumed>) = 0 [pid 6508] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6507] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6507] <... futex resumed>) = 0 [pid 6508] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6507] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6508] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6508] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6507] <... futex resumed>) = 0 [pid 6507] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6508] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6507] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6508] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6508] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6507] exit_group(0) = ? [pid 6508] <... futex resumed>) = ? [pid 6508] +++ exited with 0 +++ [pid 6507] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6507, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=28 /* 0.28 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6516 attached , child_tidptr=0x55556c203690) = 6516 [pid 6514] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6516] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6516] setpgid(0, 0) = 0 [pid 6516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6516] write(3, "1000", 4) = 4 [pid 6516] close(3) = 0 executing program [pid 6516] write(1, "executing program\n", 18) = 18 [pid 6516] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6516] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6516] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6516] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6516] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6516] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6516] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6517 attached => {parent_tid=[6517]}, 88) = 6517 [pid 6516] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6516] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6517] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6516] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6517] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6517] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6517] memfd_create("syzkaller", 0) = 3 [pid 6517] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6510] <... close resumed>) = 0 [pid 6510] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6509] <... futex resumed>) = 0 [pid 6510] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6509] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6510] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6509] <... futex resumed>) = 0 [pid 6510] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6509] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6510] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6510] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6509] <... futex resumed>) = 0 [pid 6510] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6509] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6510] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6509] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6510] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6509] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6510] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6509] exit_group(0 [pid 6510] <... futex resumed>) = ? [pid 6509] <... exit_group resumed>) = ? [pid 6510] +++ exited with 0 +++ [pid 6509] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6509, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6518 ./strace-static-x86_64: Process 6518 attached [pid 6518] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6518] setpgid(0, 0) = 0 [pid 6518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6518] write(3, "1000", 4) = 4 [pid 6518] close(3) = 0 [pid 6518] write(1, "executing program\n", 18executing program ) = 18 [pid 6518] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6518] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6518] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6518] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6518] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6518] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6518] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6519 attached [pid 6517] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6519] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6518] <... clone3 resumed> => {parent_tid=[6519]}, 88) = 6519 [pid 6519] <... rseq resumed>) = 0 [pid 6518] rt_sigprocmask(SIG_SETMASK, [], [pid 6519] set_robust_list(0x7fb72497a9a0, 24 [pid 6518] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6519] <... set_robust_list resumed>) = 0 [pid 6518] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6519] rt_sigprocmask(SIG_SETMASK, [], [pid 6518] <... futex resumed>) = 0 [pid 6519] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6518] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6519] memfd_create("syzkaller", 0) = 3 [pid 6519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6514] <... write resumed>) = 16777216 [pid 6514] munmap(0x7fb71c400000, 138412032) = 0 [pid 6514] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6514] close(3 [pid 6519] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6517] <... write resumed>) = 16777216 [pid 6517] munmap(0x7fb71c400000, 138412032 [pid 6514] <... close resumed>) = 0 [pid 6514] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6513] <... futex resumed>) = 0 [pid 6514] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6513] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6514] <... futex resumed>) = 0 [pid 6513] <... futex resumed>) = 1 [pid 6514] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6513] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6514] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6514] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6513] <... futex resumed>) = 0 [pid 6513] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6513] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6514] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6514] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6513] <... futex resumed>) = 0 [pid 6514] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6513] exit_group(0 [pid 6514] <... futex resumed>) = ? [pid 6513] <... exit_group resumed>) = ? [pid 6514] +++ exited with 0 +++ [pid 6513] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6513, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6520 attached [pid 6517] <... munmap resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6520 [pid 6517] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6520] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6520] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6517] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6517] close(3 [pid 6520] <... prctl resumed>) = 0 [pid 6520] setpgid(0, 0) = 0 [pid 6520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6520] write(3, "1000", 4) = 4 [pid 6520] close(3) = 0 executing program [pid 6520] write(1, "executing program\n", 18) = 18 [pid 6520] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6520] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6520] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6520] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6520] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6520] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6520] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6521 attached => {parent_tid=[6521]}, 88) = 6521 [pid 6520] rt_sigprocmask(SIG_SETMASK, [], [pid 6521] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6520] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6521] <... rseq resumed>) = 0 [pid 6520] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6521] set_robust_list(0x7fb72497a9a0, 24 [pid 6520] <... futex resumed>) = 0 [pid 6521] <... set_robust_list resumed>) = 0 [pid 6520] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6521] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6521] memfd_create("syzkaller", 0) = 3 [pid 6521] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6519] <... write resumed>) = 16777216 [pid 6519] munmap(0x7fb71c400000, 138412032 [pid 6517] <... close resumed>) = 0 [pid 6517] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6516] <... futex resumed>) = 0 [pid 6516] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6516] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6519] <... munmap resumed>) = 0 [pid 6521] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6517] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6519] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6517] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6519] close(3 [pid 6517] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6516] <... futex resumed>) = 0 [pid 6516] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6516] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6517] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6517] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6516] <... futex resumed>) = 0 [pid 6516] exit_group(0) = ? [pid 6517] +++ exited with 0 +++ [pid 6516] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6516, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6523 ./strace-static-x86_64: Process 6523 attached [pid 6523] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6523] setpgid(0, 0) = 0 [pid 6523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6523] write(3, "1000", 4executing program ) = 4 [pid 6523] close(3) = 0 [pid 6523] write(1, "executing program\n", 18) = 18 [pid 6523] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6523] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6523] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6523] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6523] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6523] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6523] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6524 attached => {parent_tid=[6524]}, 88) = 6524 [pid 6524] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6523] rt_sigprocmask(SIG_SETMASK, [], [pid 6524] <... rseq resumed>) = 0 [pid 6524] set_robust_list(0x7fb72497a9a0, 24 [pid 6523] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6524] <... set_robust_list resumed>) = 0 [pid 6524] rt_sigprocmask(SIG_SETMASK, [], [pid 6523] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6523] <... futex resumed>) = 0 [pid 6524] memfd_create("syzkaller", 0 [pid 6523] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6524] <... memfd_create resumed>) = 3 [pid 6524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6519] <... close resumed>) = 0 [pid 6519] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6518] <... futex resumed>) = 0 [pid 6519] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6518] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6519] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6518] <... futex resumed>) = 0 [pid 6519] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6518] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6519] <... futex resumed>) = 0 [pid 6518] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6519] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6518] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6519] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6518] <... futex resumed>) = 0 [pid 6519] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6518] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6519] <... futex resumed>) = 0 [pid 6518] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6519] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6518] exit_group(0 [pid 6519] <... futex resumed>) = ? [pid 6518] <... exit_group resumed>) = ? [pid 6519] +++ exited with 0 +++ [pid 6518] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6518, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=42 /* 0.42 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6525 attached , child_tidptr=0x55556c203690) = 6525 [pid 6525] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6525] setpgid(0, 0) = 0 [pid 6525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6525] write(3, "1000", 4) = 4 [pid 6525] close(3) = 0 [pid 6525] write(1, "executing program\n", 18) = 18 [pid 6525] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6525] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6525] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6525] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6525] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6525] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6526 attached => {parent_tid=[6526]}, 88) = 6526 [pid 6526] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6524] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6521] <... write resumed>) = 16777216 [pid 6525] rt_sigprocmask(SIG_SETMASK, [], [pid 6526] <... rseq resumed>) = 0 [pid 6525] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6521] munmap(0x7fb71c400000, 138412032 [pid 6526] set_robust_list(0x7fb72497a9a0, 24 [pid 6525] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] <... set_robust_list resumed>) = 0 [pid 6525] <... futex resumed>) = 0 [pid 6526] rt_sigprocmask(SIG_SETMASK, [], [pid 6525] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6521] <... munmap resumed>) = 0 [pid 6526] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6521] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6526] memfd_create("syzkaller", 0) = 3 [pid 6526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6521] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6521] close(3 [pid 6526] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6524] <... write resumed>) = 16777216 [pid 6524] munmap(0x7fb71c400000, 138412032) = 0 [pid 6524] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6524] close(3 [pid 6521] <... close resumed>) = 0 [pid 6521] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6521] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6520] <... futex resumed>) = 0 [pid 6520] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6521] <... futex resumed>) = 0 [pid 6520] <... futex resumed>) = 1 [pid 6521] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6520] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6521] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6521] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6521] <... futex resumed>) = 0 [pid 6521] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6520] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6521] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6521] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6520] <... futex resumed>) = 0 [pid 6521] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6520] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6521] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6521] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6520] exit_group(0 [pid 6521] <... futex resumed>) = ? [pid 6520] <... exit_group resumed>) = ? [pid 6521] +++ exited with 0 +++ [pid 6520] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6520, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6527 attached , child_tidptr=0x55556c203690) = 6527 [pid 6527] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6527] setpgid(0, 0) = 0 [pid 6527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6527] write(3, "1000", 4) = 4 [pid 6527] close(3) = 0 [pid 6527] write(1, "executing program\n", 18executing program ) = 18 [pid 6527] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6527] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6527] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6527] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6527] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6527] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6527] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6528 attached [pid 6528] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6527] <... clone3 resumed> => {parent_tid=[6528]}, 88) = 6528 [pid 6528] <... rseq resumed>) = 0 [pid 6527] rt_sigprocmask(SIG_SETMASK, [], [pid 6528] set_robust_list(0x7fb72497a9a0, 24 [pid 6527] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6528] <... set_robust_list resumed>) = 0 [pid 6527] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6528] rt_sigprocmask(SIG_SETMASK, [], [pid 6527] <... futex resumed>) = 0 [pid 6528] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6527] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6528] memfd_create("syzkaller", 0) = 3 [pid 6528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6526] <... write resumed>) = 16777216 [pid 6526] munmap(0x7fb71c400000, 138412032 [pid 6528] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6526] <... munmap resumed>) = 0 [pid 6524] <... close resumed>) = 0 [pid 6526] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6524] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6524] <... futex resumed>) = 1 [pid 6523] <... futex resumed>) = 0 [pid 6526] close(3 [pid 6524] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6523] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6523] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6524] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6524] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6523] <... futex resumed>) = 0 [pid 6524] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6523] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6524] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6523] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6524] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6524] <... futex resumed>) = 0 [pid 6523] exit_group(0) = ? [pid 6524] +++ exited with 0 +++ [pid 6523] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6523, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6529 attached [pid 6529] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6529 [pid 6529] <... set_robust_list resumed>) = 0 [pid 6529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6529] setpgid(0, 0) = 0 [pid 6529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6529] write(3, "1000", 4) = 4 [pid 6529] close(3) = 0 executing program [pid 6529] write(1, "executing program\n", 18) = 18 [pid 6529] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6529] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6529] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6529] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6529] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6529] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6530 attached [pid 6530] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6529] <... clone3 resumed> => {parent_tid=[6530]}, 88) = 6530 [pid 6530] <... rseq resumed>) = 0 [pid 6529] rt_sigprocmask(SIG_SETMASK, [], [pid 6530] set_robust_list(0x7fb72497a9a0, 24 [pid 6529] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6530] <... set_robust_list resumed>) = 0 [pid 6529] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6530] rt_sigprocmask(SIG_SETMASK, [], [pid 6529] <... futex resumed>) = 0 [pid 6530] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6529] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6530] memfd_create("syzkaller", 0) = 3 [pid 6530] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6526] <... close resumed>) = 0 [pid 6526] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6525] <... futex resumed>) = 0 [pid 6526] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6525] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6525] <... futex resumed>) = 0 [pid 6526] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6526] <... futex resumed>) = 0 [pid 6525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6526] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6525] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6525] <... futex resumed>) = 0 [pid 6526] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6526] <... futex resumed>) = 0 [pid 6525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6526] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6525] exit_group(0) = ? [pid 6526] <... futex resumed>) = ? [pid 6526] +++ exited with 0 +++ [pid 6525] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6525, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=40 /* 0.40 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6531 attached , child_tidptr=0x55556c203690) = 6531 [pid 6531] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6531] setpgid(0, 0) = 0 [pid 6531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6531] write(3, "1000", 4) = 4 [pid 6531] close(3) = 0 [pid 6531] write(1, "executing program\n", 18 [pid 6530] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216executing program [pid 6531] <... write resumed>) = 18 [pid 6531] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6531] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6531] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6531] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6531] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6531] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6531] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6532 attached => {parent_tid=[6532]}, 88) = 6532 [pid 6532] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6531] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6532] <... rseq resumed>) = 0 [pid 6531] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6532] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6531] <... futex resumed>) = 0 [pid 6531] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6532] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6532] memfd_create("syzkaller", 0) = 3 [pid 6528] <... write resumed>) = 16777216 [pid 6532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6528] munmap(0x7fb71c400000, 138412032) = 0 [pid 6528] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6528] close(3 [pid 6532] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6528] <... close resumed>) = 0 [pid 6528] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6527] <... futex resumed>) = 0 [pid 6528] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6527] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6528] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6528] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6527] <... futex resumed>) = 0 [pid 6528] <... futex resumed>) = 0 [pid 6527] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6528] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6527] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6528] <... futex resumed>) = 0 [pid 6527] <... futex resumed>) = 1 [pid 6528] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6527] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6528] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6528] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6527] <... futex resumed>) = 0 [pid 6528] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6527] exit_group(0 [pid 6528] <... futex resumed>) = ? [pid 6527] <... exit_group resumed>) = ? [pid 6528] +++ exited with 0 +++ [pid 6527] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6527, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6533 attached [pid 6530] <... write resumed>) = 16777216 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6533 [pid 6533] set_robust_list(0x55556c2036a0, 24 [pid 6530] munmap(0x7fb71c400000, 138412032 [pid 6533] <... set_robust_list resumed>) = 0 [pid 6533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6530] <... munmap resumed>) = 0 [pid 6533] setpgid(0, 0 [pid 6530] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6533] <... setpgid resumed>) = 0 executing program [pid 6530] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6530] close(3 [pid 6533] <... openat resumed>) = 3 [pid 6533] write(3, "1000", 4) = 4 [pid 6533] close(3) = 0 [pid 6533] write(1, "executing program\n", 18) = 18 [pid 6533] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6533] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6533] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6533] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6533] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6533] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6533] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6534 attached [pid 6534] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6533] <... clone3 resumed> => {parent_tid=[6534]}, 88) = 6534 [pid 6534] <... rseq resumed>) = 0 [pid 6533] rt_sigprocmask(SIG_SETMASK, [], [pid 6534] set_robust_list(0x7fb72497a9a0, 24 [pid 6533] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6534] <... set_robust_list resumed>) = 0 [pid 6533] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6533] <... futex resumed>) = 0 [pid 6533] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6534] memfd_create("syzkaller", 0) = 3 [pid 6534] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6530] <... close resumed>) = 0 [pid 6530] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6529] <... futex resumed>) = 0 [pid 6530] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6529] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6530] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6529] <... futex resumed>) = 0 [pid 6530] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6529] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6530] <... futex resumed>) = 0 [pid 6529] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6530] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6529] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6530] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6529] <... futex resumed>) = 0 [pid 6530] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6529] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6530] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6530] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6529] <... futex resumed>) = 0 [pid 6530] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6529] exit_group(0 [pid 6530] <... futex resumed>) = ? [pid 6529] <... exit_group resumed>) = ? [pid 6530] +++ exited with 0 +++ [pid 6529] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6529, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6536 attached , child_tidptr=0x55556c203690) = 6536 [pid 6532] <... write resumed>) = 16777216 [pid 6536] set_robust_list(0x55556c2036a0, 24 [pid 6534] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6536] <... set_robust_list resumed>) = 0 [pid 6532] munmap(0x7fb71c400000, 138412032executing program [pid 6536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6536] setpgid(0, 0) = 0 [pid 6536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6536] write(3, "1000", 4) = 4 [pid 6536] close(3) = 0 [pid 6536] write(1, "executing program\n", 18) = 18 [pid 6536] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6536] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6536] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6532] <... munmap resumed>) = 0 [pid 6536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6536] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6532] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6536] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6536] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6532] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6532] close(3./strace-static-x86_64: Process 6537 attached [pid 6537] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6536] <... clone3 resumed> => {parent_tid=[6537]}, 88) = 6537 [pid 6537] <... rseq resumed>) = 0 [pid 6537] set_robust_list(0x7fb72497a9a0, 24 [pid 6536] rt_sigprocmask(SIG_SETMASK, [], [pid 6537] <... set_robust_list resumed>) = 0 [pid 6536] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6537] rt_sigprocmask(SIG_SETMASK, [], [pid 6536] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6536] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6537] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6537] memfd_create("syzkaller", 0) = 3 [pid 6537] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6532] <... close resumed>) = 0 [pid 6532] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6532] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6531] <... futex resumed>) = 0 [pid 6531] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6532] <... futex resumed>) = 0 [pid 6531] <... futex resumed>) = 1 [pid 6532] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6531] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6532] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6532] <... futex resumed>) = 0 [pid 6531] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6532] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6531] <... futex resumed>) = 0 [pid 6532] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6532] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6531] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6532] <... futex resumed>) = 0 [pid 6531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6532] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6531] exit_group(0 [pid 6532] <... futex resumed>) = ? [pid 6531] <... exit_group resumed>) = ? [pid 6532] +++ exited with 0 +++ [pid 6531] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6531, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6537] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6538 attached , child_tidptr=0x55556c203690) = 6538 [pid 6534] <... write resumed>) = 16777216 [pid 6538] set_robust_list(0x55556c2036a0, 24 [pid 6534] munmap(0x7fb71c400000, 138412032 [pid 6538] <... set_robust_list resumed>) = 0 [pid 6538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6538] setpgid(0, 0) = 0 [pid 6538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6538] write(3, "1000", 4) = 4 [pid 6538] close(3) = 0 [pid 6538] write(1, "executing program\n", 18executing program ) = 18 [pid 6538] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6538] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6538] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6538] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6538] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6538] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6539 attached => {parent_tid=[6539]}, 88) = 6539 [pid 6534] <... munmap resumed>) = 0 [pid 6539] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6538] rt_sigprocmask(SIG_SETMASK, [], [pid 6539] <... rseq resumed>) = 0 [pid 6538] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6534] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6539] set_robust_list(0x7fb72497a9a0, 24 [pid 6538] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6539] <... set_robust_list resumed>) = 0 [pid 6538] <... futex resumed>) = 0 [pid 6534] close(3 [pid 6539] rt_sigprocmask(SIG_SETMASK, [], [pid 6538] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6539] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6539] memfd_create("syzkaller", 0) = 3 [pid 6539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6539] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6534] <... close resumed>) = 0 [pid 6534] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6533] <... futex resumed>) = 0 [pid 6534] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6533] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6533] <... futex resumed>) = 0 [pid 6534] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6533] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6534] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6534] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6533] <... futex resumed>) = 0 [pid 6534] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6533] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6533] <... futex resumed>) = 0 [pid 6534] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6533] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6534] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6534] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6533] <... futex resumed>) = 0 [pid 6534] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6533] exit_group(0 [pid 6534] <... futex resumed>) = ? [pid 6533] <... exit_group resumed>) = ? [pid 6534] +++ exited with 0 +++ [pid 6533] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6533, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6540 attached , child_tidptr=0x55556c203690) = 6540 [pid 6540] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6540] setpgid(0, 0) = 0 [pid 6540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6540] write(3, "1000", 4) = 4 [pid 6540] close(3) = 0 [pid 6540] write(1, "executing program\n", 18executing program ) = 18 [pid 6540] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... write resumed>) = 16777216 [pid 6540] <... futex resumed>) = 0 [pid 6540] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6540] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6540] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6537] munmap(0x7fb71c400000, 138412032 [pid 6540] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6540] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6540] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6541 attached => {parent_tid=[6541]}, 88) = 6541 [pid 6540] rt_sigprocmask(SIG_SETMASK, [], [pid 6541] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6540] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6541] <... rseq resumed>) = 0 [pid 6540] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6541] set_robust_list(0x7fb72497a9a0, 24 [pid 6540] <... futex resumed>) = 0 [pid 6541] <... set_robust_list resumed>) = 0 [pid 6541] rt_sigprocmask(SIG_SETMASK, [], [pid 6540] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6541] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6541] memfd_create("syzkaller", 0) = 3 [pid 6541] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6537] <... munmap resumed>) = 0 [pid 6537] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6537] close(3 [pid 6539] <... write resumed>) = 16777216 [pid 6539] munmap(0x7fb71c400000, 138412032) = 0 [pid 6539] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6539] close(3 [pid 6541] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6537] <... close resumed>) = 0 [pid 6539] <... close resumed>) = 0 [pid 6539] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6538] <... futex resumed>) = 0 [pid 6537] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6539] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6538] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = 1 [pid 6536] <... futex resumed>) = 0 [pid 6537] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6536] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] <... futex resumed>) = 0 [pid 6536] <... futex resumed>) = 1 [pid 6539] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6538] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6536] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6537] <... futex resumed>) = 0 [pid 6539] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6539] <... futex resumed>) = 1 [pid 6538] <... futex resumed>) = 0 [pid 6537] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6539] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6537] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = 1 [pid 6539] <... futex resumed>) = 0 [pid 6538] <... futex resumed>) = 1 [pid 6537] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6536] <... futex resumed>) = 0 [pid 6539] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6538] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6536] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6539] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6537] <... futex resumed>) = 0 [pid 6539] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6539] <... futex resumed>) = 1 [pid 6538] <... futex resumed>) = 0 [pid 6537] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6539] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6537] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6537] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6536] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6538] exit_group(0 [pid 6539] <... futex resumed>) = ? [pid 6538] <... exit_group resumed>) = ? [pid 6536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6539] +++ exited with 0 +++ [pid 6536] exit_group(0 [pid 6541] <... write resumed>) = 16777216 [pid 6536] <... exit_group resumed>) = ? [pid 6541] munmap(0x7fb71c400000, 138412032 [pid 6537] <... futex resumed>) = ? [pid 6538] +++ exited with 0 +++ [pid 6537] +++ exited with 0 +++ [pid 6536] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6538, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6536, si_uid=0, si_status=0, si_utime=0, si_stime=39 /* 0.39 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5868] <... restart_syscall resumed>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6542 attached , child_tidptr=0x55556c203690) = 6543 ./strace-static-x86_64: Process 6543 attached [pid 6543] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6542 [pid 6542] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6543] <... set_robust_list resumed>) = 0 [pid 6542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6541] <... munmap resumed>) = 0 [pid 6543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6542] <... prctl resumed>) = 0 [pid 6543] <... prctl resumed>) = 0 [pid 6542] setpgid(0, 0 [pid 6541] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6543] setpgid(0, 0 [pid 6542] <... setpgid resumed>) = 0 [pid 6541] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6543] <... setpgid resumed>) = 0 [pid 6541] close(3 [pid 6543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6543] <... openat resumed>) = 3 [pid 6543] write(3, "1000", 4 [pid 6542] <... openat resumed>) = 3 [pid 6543] <... write resumed>) = 4 [pid 6543] close(3) = 0 executing program [pid 6543] write(1, "executing program\n", 18 [pid 6542] write(3, "1000", 4 [pid 6543] <... write resumed>) = 18 [pid 6542] <... write resumed>) = 4 [pid 6543] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] close(3) = 0 [pid 6543] <... futex resumed>) = 0 executing program [pid 6542] write(1, "executing program\n", 18 [pid 6543] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6542] <... write resumed>) = 18 [pid 6543] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6542] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6542] <... futex resumed>) = 0 [pid 6543] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6542] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6543] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6542] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6542] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6543] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6543] <... mprotect resumed>) = 0 [pid 6542] <... mmap resumed>) = 0x7fb72495a000 [pid 6543] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6542] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6543] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6542] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6543] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6542] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 6544 attached [pid 6542] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6544] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6544] set_robust_list(0x7fb72497a9a0, 24 [pid 6543] <... clone3 resumed> => {parent_tid=[6544]}, 88) = 6544 [pid 6543] rt_sigprocmask(SIG_SETMASK, [], [pid 6542] <... clone3 resumed> => {parent_tid=[6545]}, 88) = 6545 [pid 6543] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6543] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] rt_sigprocmask(SIG_SETMASK, [], [pid 6543] <... futex resumed>) = 0 [pid 6542] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6542] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6542] <... futex resumed>) = 0 [pid 6542] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6545 attached [pid 6544] <... set_robust_list resumed>) = 0 [pid 6545] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6544] rt_sigprocmask(SIG_SETMASK, [], [pid 6545] <... rseq resumed>) = 0 [pid 6544] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6545] set_robust_list(0x7fb72497a9a0, 24 [pid 6544] memfd_create("syzkaller", 0 [pid 6545] <... set_robust_list resumed>) = 0 [pid 6544] <... memfd_create resumed>) = 3 [pid 6545] rt_sigprocmask(SIG_SETMASK, [], [pid 6544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6545] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6544] <... mmap resumed>) = 0x7fb71c400000 [pid 6545] memfd_create("syzkaller", 0) = 3 [pid 6545] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6544] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6541] <... close resumed>) = 0 [pid 6541] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6541] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] <... futex resumed>) = 0 [pid 6540] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6541] <... futex resumed>) = 0 [pid 6540] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6541] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6541] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6540] <... futex resumed>) = 0 [pid 6541] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6541] <... futex resumed>) = 0 [pid 6540] <... futex resumed>) = 1 [pid 6541] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6540] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6541] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6541] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6540] <... futex resumed>) = 0 [pid 6541] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] exit_group(0 [pid 6541] <... futex resumed>) = ? [pid 6540] <... exit_group resumed>) = ? [pid 6541] +++ exited with 0 +++ [pid 6540] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6540, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6546 attached , child_tidptr=0x55556c203690) = 6546 [pid 6546] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6545] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6546] <... prctl resumed>) = 0 [pid 6546] setpgid(0, 0) = 0 [pid 6546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6546] write(3, "1000", 4) = 4 [pid 6546] close(3) = 0 executing program [pid 6546] write(1, "executing program\n", 18) = 18 [pid 6546] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6546] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6546] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6546] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6546] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6546] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6546] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6547 attached => {parent_tid=[6547]}, 88) = 6547 [pid 6546] rt_sigprocmask(SIG_SETMASK, [], [pid 6547] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6546] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6547] <... rseq resumed>) = 0 [pid 6546] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6546] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6547] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6547] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6547] memfd_create("syzkaller", 0) = 3 [pid 6547] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6544] <... write resumed>) = 16777216 [pid 6544] munmap(0x7fb71c400000, 138412032) = 0 [pid 6544] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6544] close(3 [pid 6545] <... write resumed>) = 16777216 [pid 6547] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6545] munmap(0x7fb71c400000, 138412032) = 0 [pid 6545] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6545] close(3 [pid 6544] <... close resumed>) = 0 [pid 6544] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6544] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6543] <... futex resumed>) = 0 [pid 6543] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6544] <... futex resumed>) = 0 [pid 6543] <... futex resumed>) = 1 [pid 6544] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6543] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6544] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6544] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6543] <... futex resumed>) = 0 [pid 6544] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6543] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6544] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6543] <... futex resumed>) = 0 [pid 6543] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6544] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6544] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6543] <... futex resumed>) = 0 [pid 6544] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6543] exit_group(0 [pid 6544] <... futex resumed>) = ? [pid 6543] <... exit_group resumed>) = ? [pid 6544] +++ exited with 0 +++ [pid 6543] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6543, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6548 attached , child_tidptr=0x55556c203690) = 6548 [pid 6548] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6548] setpgid(0, 0) = 0 [pid 6548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6548] write(3, "1000", 4) = 4 [pid 6548] close(3executing program ) = 0 [pid 6548] write(1, "executing program\n", 18) = 18 [pid 6548] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6548] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6548] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6548] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6548] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6548] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6548] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6549 attached [pid 6549] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6548] <... clone3 resumed> => {parent_tid=[6549]}, 88) = 6549 [pid 6549] <... rseq resumed>) = 0 [pid 6548] rt_sigprocmask(SIG_SETMASK, [], [pid 6549] set_robust_list(0x7fb72497a9a0, 24 [pid 6548] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6549] <... set_robust_list resumed>) = 0 [pid 6548] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6549] rt_sigprocmask(SIG_SETMASK, [], [pid 6548] <... futex resumed>) = 0 [pid 6549] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6548] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6549] memfd_create("syzkaller", 0) = 3 [pid 6549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6545] <... close resumed>) = 0 [pid 6545] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6542] <... futex resumed>) = 0 [pid 6545] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6545] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6542] <... futex resumed>) = 0 [pid 6545] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6545] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6545] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6542] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6545] <... futex resumed>) = 0 [pid 6542] <... futex resumed>) = 1 [pid 6542] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6545] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6545] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6542] <... futex resumed>) = 0 [pid 6545] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] exit_group(0 [pid 6545] <... futex resumed>) = ? [pid 6542] <... exit_group resumed>) = ? [pid 6545] +++ exited with 0 +++ [pid 6542] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6542, si_uid=0, si_status=0, si_utime=0, si_stime=42 /* 0.42 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6550 attached , child_tidptr=0x55556c203690) = 6550 [pid 6549] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6550] set_robust_list(0x55556c2036a0, 24 [pid 6547] <... write resumed>) = 16777216 [pid 6550] <... set_robust_list resumed>) = 0 [pid 6550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6547] munmap(0x7fb71c400000, 138412032executing program [pid 6550] <... prctl resumed>) = 0 [pid 6550] setpgid(0, 0) = 0 [pid 6550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6550] write(3, "1000", 4) = 4 [pid 6550] close(3) = 0 [pid 6550] write(1, "executing program\n", 18) = 18 [pid 6550] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6550] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6550] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6550] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6550] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6550] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6551 attached => {parent_tid=[6551]}, 88) = 6551 [pid 6550] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6550] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6550] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6551] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6551] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6551] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6551] memfd_create("syzkaller", 0) = 3 [pid 6551] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6547] <... munmap resumed>) = 0 [pid 6547] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6547] close(3 [pid 6551] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6549] <... write resumed>) = 16777216 [pid 6549] munmap(0x7fb71c400000, 138412032) = 0 [pid 6549] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6549] close(3 [pid 6547] <... close resumed>) = 0 [pid 6547] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6546] <... futex resumed>) = 0 [pid 6547] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6546] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6547] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6546] <... futex resumed>) = 0 [pid 6547] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6546] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6547] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6547] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6546] <... futex resumed>) = 0 [pid 6547] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6546] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6547] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6546] <... futex resumed>) = 0 [pid 6547] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6547] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6546] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6546] exit_group(0 [pid 6547] <... futex resumed>) = ? [pid 6546] <... exit_group resumed>) = ? [pid 6547] +++ exited with 0 +++ [pid 6546] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6546, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6552 attached [pid 6552] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6552 [pid 6552] <... set_robust_list resumed>) = 0 [pid 6552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6552] setpgid(0, 0) = 0 [pid 6552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6551] <... write resumed>) = 16777216 [pid 6552] <... openat resumed>) = 3 [pid 6551] munmap(0x7fb71c400000, 138412032 [pid 6552] write(3, "1000", 4) = 4 [pid 6552] close(3) = 0 executing program [pid 6552] write(1, "executing program\n", 18) = 18 [pid 6552] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6552] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6552] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6552] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6552] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6552] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6552] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6553 attached => {parent_tid=[6553]}, 88) = 6553 [pid 6551] <... munmap resumed>) = 0 [pid 6553] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6552] rt_sigprocmask(SIG_SETMASK, [], [pid 6551] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6553] set_robust_list(0x7fb72497a9a0, 24 [pid 6552] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6553] <... set_robust_list resumed>) = 0 [pid 6552] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6551] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6553] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6553] memfd_create("syzkaller", 0 [pid 6552] <... futex resumed>) = 0 [pid 6551] close(3 [pid 6552] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6553] <... memfd_create resumed>) = 3 [pid 6553] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6549] <... close resumed>) = 0 [pid 6549] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6548] <... futex resumed>) = 0 [pid 6549] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6548] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6549] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6548] <... futex resumed>) = 0 [pid 6549] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6548] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6549] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6549] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... futex resumed>) = 0 [pid 6549] <... futex resumed>) = 1 [pid 6548] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6549] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6548] <... futex resumed>) = 0 [pid 6548] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6549] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6551] <... close resumed>) = 0 [pid 6549] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6551] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6549] <... futex resumed>) = 1 [pid 6548] <... futex resumed>) = 0 [pid 6551] <... futex resumed>) = 1 [pid 6550] <... futex resumed>) = 0 [pid 6549] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6548] exit_group(0 [pid 6551] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6550] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6549] <... futex resumed>) = ? [pid 6548] <... exit_group resumed>) = ? [pid 6551] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6550] <... futex resumed>) = 0 [pid 6549] +++ exited with 0 +++ [pid 6548] +++ exited with 0 +++ [pid 6550] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6548, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 6551] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6551] <... futex resumed>) = 1 [pid 6551] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6550] <... futex resumed>) = 0 [pid 6550] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6551] <... futex resumed>) = 0 [pid 6550] <... futex resumed>) = 1 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6551] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6550] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6551] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6550] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6551] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6550] exit_group(0 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6551] <... futex resumed>) = ? [pid 6550] <... exit_group resumed>) = ? [pid 6551] +++ exited with 0 +++ ./strace-static-x86_64: Process 6554 attached [pid 6550] +++ exited with 0 +++ [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6554 [pid 6554] set_robust_list(0x55556c2036a0, 24 [pid 6553] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6550, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 6554] <... set_robust_list resumed>) = 0 [pid 6554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6554] setpgid(0, 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6554] <... setpgid resumed>) = 0 [pid 6554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6555 attached [pid 6554] <... openat resumed>) = 3 [pid 6554] write(3, "1000", 4 [pid 6555] set_robust_list(0x55556c2036a0, 24 [pid 6554] <... write resumed>) = 4 [pid 6555] <... set_robust_list resumed>) = 0 [pid 6554] close(3) = 0 [pid 6555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6554] write(1, "executing program\n", 18executing program ) = 18 [pid 6554] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6555 [pid 6555] <... prctl resumed>) = 0 [pid 6554] <... futex resumed>) = 0 [pid 6555] setpgid(0, 0 [pid 6554] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6555] <... setpgid resumed>) = 0 [pid 6555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6554] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6554] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6555] <... openat resumed>) = 3 [pid 6555] write(3, "1000", 4 [pid 6554] <... mmap resumed>) = 0x7fb72495a000 [pid 6554] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6555] <... write resumed>) = 4 [pid 6554] <... mprotect resumed>) = 0 [pid 6555] close(3 [pid 6554] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6555] <... close resumed>) = 0 [pid 6555] write(1, "executing program\n", 18 [pid 6554] <... rt_sigprocmask resumed>[], 8) = 0 executing program [pid 6555] <... write resumed>) = 18 [pid 6554] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6555] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6556 attached ) = 0 [pid 6554] <... clone3 resumed> => {parent_tid=[6556]}, 88) = 6556 [pid 6555] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6554] rt_sigprocmask(SIG_SETMASK, [], [pid 6555] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6554] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6555] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6554] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6555] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6554] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6555] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6555] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6555] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6555] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6557 attached [pid 6557] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6556] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6557] <... rseq resumed>) = 0 [pid 6557] set_robust_list(0x7fb72497a9a0, 24 [pid 6555] <... clone3 resumed> => {parent_tid=[6557]}, 88) = 6557 [pid 6557] <... set_robust_list resumed>) = 0 [pid 6556] <... rseq resumed>) = 0 [pid 6555] rt_sigprocmask(SIG_SETMASK, [], [pid 6557] rt_sigprocmask(SIG_SETMASK, [], [pid 6556] set_robust_list(0x7fb72497a9a0, 24 [pid 6555] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6557] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6556] <... set_robust_list resumed>) = 0 [pid 6555] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6557] memfd_create("syzkaller", 0 [pid 6556] rt_sigprocmask(SIG_SETMASK, [], [pid 6555] <... futex resumed>) = 0 [pid 6556] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6555] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6556] memfd_create("syzkaller", 0 [pid 6557] <... memfd_create resumed>) = 3 [pid 6557] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6556] <... memfd_create resumed>) = 3 [pid 6556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6553] <... write resumed>) = 16777216 [pid 6553] munmap(0x7fb71c400000, 138412032) = 0 [pid 6556] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6553] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6557] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6553] close(3) = 0 [pid 6553] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6552] <... futex resumed>) = 0 [pid 6552] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6552] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6553] <... futex resumed>) = 1 [pid 6553] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6553] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6552] <... futex resumed>) = 0 [pid 6552] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6552] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6553] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6553] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6552] <... futex resumed>) = 0 [pid 6552] exit_group(0) = ? [pid 6557] <... write resumed>) = 16777216 [pid 6553] +++ exited with 0 +++ [pid 6552] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6552, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6557] munmap(0x7fb71c400000, 138412032 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6558 attached , child_tidptr=0x55556c203690) = 6558 [pid 6558] set_robust_list(0x55556c2036a0, 24 [pid 6557] <... munmap resumed>) = 0 [pid 6558] <... set_robust_list resumed>) = 0 [pid 6557] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6557] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6558] <... prctl resumed>) = 0 [pid 6558] setpgid(0, 0) = 0 [pid 6557] close(3 [pid 6558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6556] <... write resumed>) = 16777216 [pid 6558] <... openat resumed>) = 3 [pid 6556] munmap(0x7fb71c400000, 138412032 [pid 6558] write(3, "1000", 4) = 4 [pid 6558] close(3) = 0 executing program [pid 6558] write(1, "executing program\n", 18) = 18 [pid 6558] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6558] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6558] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6558] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6558] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6556] <... munmap resumed>) = 0 [pid 6558] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6559 attached => {parent_tid=[6559]}, 88) = 6559 [pid 6556] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6558] rt_sigprocmask(SIG_SETMASK, [], [pid 6556] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6558] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6558] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6558] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6556] close(3 [pid 6559] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6559] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6559] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6559] memfd_create("syzkaller", 0) = 3 [pid 6559] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6556] <... close resumed>) = 0 [pid 6556] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6554] <... futex resumed>) = 0 [pid 6554] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6556] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6554] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6556] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6556] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6556] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6557] <... close resumed>) = 0 [pid 6554] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6557] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6557] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6555] <... futex resumed>) = 0 [pid 6554] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6555] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6557] <... futex resumed>) = 0 [pid 6556] <... futex resumed>) = 0 [pid 6555] <... futex resumed>) = 1 [pid 6554] <... futex resumed>) = 1 [pid 6557] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6556] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6555] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6554] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6557] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6556] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6557] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6556] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6557] <... futex resumed>) = 1 [pid 6556] <... futex resumed>) = 1 [pid 6555] <... futex resumed>) = 0 [pid 6554] <... futex resumed>) = 0 [pid 6557] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6556] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6555] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6554] exit_group(0 [pid 6557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6556] <... futex resumed>) = ? [pid 6555] <... futex resumed>) = 0 [pid 6554] <... exit_group resumed>) = ? [pid 6557] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6556] +++ exited with 0 +++ [pid 6555] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6554] +++ exited with 0 +++ [pid 6557] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6554, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} --- [pid 6557] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6557] <... futex resumed>) = 1 [pid 6555] <... futex resumed>) = 0 [pid 6557] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6555] exit_group(0 [pid 6557] <... futex resumed>) = ? [pid 6555] <... exit_group resumed>) = ? [pid 6557] +++ exited with 0 +++ [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6560 ./strace-static-x86_64: Process 6560 attached [pid 6560] set_robust_list(0x55556c2036a0, 24 [pid 6555] +++ exited with 0 +++ [pid 6560] <... set_robust_list resumed>) = 0 [pid 6560] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6555, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 6560] <... prctl resumed>) = 0 [pid 6560] setpgid(0, 0) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6560] <... openat resumed>) = 3 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6561 attached [pid 6560] write(3, "1000", 4) = 4 [pid 6560] close(3) = 0 executing program [pid 6560] write(1, "executing program\n", 18) = 18 [pid 6560] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6560] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6561 [pid 6560] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6560] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6560] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6560] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6561] set_robust_list(0x55556c2036a0, 24 [pid 6560] <... mprotect resumed>) = 0 [pid 6561] <... set_robust_list resumed>) = 0 [pid 6561] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6560] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6561] <... prctl resumed>) = 0 [pid 6561] setpgid(0, 0) = 0 [pid 6560] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6560] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6561] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6562 attached [pid 6561] write(3, "1000", 4 [pid 6562] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6561] <... write resumed>) = 4 [pid 6562] <... rseq resumed>) = 0 [pid 6561] close(3 [pid 6562] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6561] <... close resumed>) = 0 [pid 6560] <... clone3 resumed> => {parent_tid=[6562]}, 88) = 6562 [pid 6562] rt_sigprocmask(SIG_SETMASK, [], executing program [pid 6561] write(1, "executing program\n", 18 [pid 6560] rt_sigprocmask(SIG_SETMASK, [], [pid 6562] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6561] <... write resumed>) = 18 [pid 6560] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6562] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6561] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6560] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = 0 [pid 6561] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6560] <... futex resumed>) = 1 [pid 6562] memfd_create("syzkaller", 0 [pid 6561] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6560] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6561] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6562] <... memfd_create resumed>) = 3 [pid 6561] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6561] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6561] <... mmap resumed>) = 0x7fb72495a000 [pid 6562] <... mmap resumed>) = 0x7fb71c400000 [pid 6561] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6561] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6561] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6563 attached => {parent_tid=[6563]}, 88) = 6563 [pid 6563] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6561] rt_sigprocmask(SIG_SETMASK, [], [pid 6563] <... rseq resumed>) = 0 [pid 6561] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6563] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6561] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6563] rt_sigprocmask(SIG_SETMASK, [], [pid 6561] <... futex resumed>) = 0 [pid 6563] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6561] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6563] memfd_create("syzkaller", 0) = 3 [pid 6563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6563] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6562] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6559] <... write resumed>) = 16777216 [pid 6559] munmap(0x7fb71c400000, 138412032) = 0 [pid 6559] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6559] close(3 [pid 6562] <... write resumed>) = 16777216 [pid 6562] munmap(0x7fb71c400000, 138412032 [pid 6563] <... write resumed>) = 16777216 [pid 6562] <... munmap resumed>) = 0 [pid 6562] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6562] close(3 [pid 6563] munmap(0x7fb71c400000, 138412032 [pid 6559] <... close resumed>) = 0 [pid 6559] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6558] <... futex resumed>) = 0 [pid 6558] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6558] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6559] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6559] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6559] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6558] <... futex resumed>) = 0 [pid 6558] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] <... futex resumed>) = 0 [pid 6558] <... futex resumed>) = 1 [pid 6559] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6558] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6559] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6559] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6558] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6559] <... futex resumed>) = 0 [pid 6559] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6558] exit_group(0 [pid 6559] <... futex resumed>) = ? [pid 6558] <... exit_group resumed>) = ? [pid 6559] +++ exited with 0 +++ [pid 6558] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6558, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6563] <... munmap resumed>) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6563] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6563] close(3 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6564 ./strace-static-x86_64: Process 6564 attached [pid 6564] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6564] setpgid(0, 0) = 0 [pid 6564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6564] write(3, "1000", 4) = 4 [pid 6564] close(3executing program ) = 0 [pid 6564] write(1, "executing program\n", 18) = 18 [pid 6564] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6564] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6564] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6564] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6564] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6564] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6564] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6565 attached => {parent_tid=[6565]}, 88) = 6565 [pid 6565] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6564] rt_sigprocmask(SIG_SETMASK, [], [pid 6565] <... rseq resumed>) = 0 [pid 6564] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6565] set_robust_list(0x7fb72497a9a0, 24 [pid 6564] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6565] <... set_robust_list resumed>) = 0 [pid 6564] <... futex resumed>) = 0 [pid 6565] rt_sigprocmask(SIG_SETMASK, [], [pid 6564] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6565] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6565] memfd_create("syzkaller", 0) = 3 [pid 6565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6562] <... close resumed>) = 0 [pid 6562] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6562] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6560] <... futex resumed>) = 0 [pid 6560] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = 0 [pid 6560] <... futex resumed>) = 1 [pid 6562] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6560] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6560] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6562] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6560] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = 0 [pid 6560] <... futex resumed>) = 1 [pid 6562] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6560] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6562] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6560] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6562] <... futex resumed>) = 0 [pid 6562] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6560] exit_group(0 [pid 6562] <... futex resumed>) = ? [pid 6560] <... exit_group resumed>) = ? [pid 6562] +++ exited with 0 +++ [pid 6560] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6560, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6566 attached , child_tidptr=0x55556c203690) = 6566 [pid 6566] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6566] setpgid(0, 0) = 0 [pid 6566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6566] write(3, "1000", 4) = 4 [pid 6566] close(3executing program ) = 0 [pid 6566] write(1, "executing program\n", 18) = 18 [pid 6566] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6566] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6566] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6565] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6566] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6566] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6566] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6566] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6567 attached [pid 6567] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6566] <... clone3 resumed> => {parent_tid=[6567]}, 88) = 6567 [pid 6567] <... rseq resumed>) = 0 [pid 6566] rt_sigprocmask(SIG_SETMASK, [], [pid 6563] <... close resumed>) = 0 [pid 6567] set_robust_list(0x7fb72497a9a0, 24 [pid 6566] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6567] <... set_robust_list resumed>) = 0 [pid 6566] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] rt_sigprocmask(SIG_SETMASK, [], [pid 6566] <... futex resumed>) = 0 [pid 6567] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6566] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6567] memfd_create("syzkaller", 0 [pid 6563] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] <... memfd_create resumed>) = 3 [pid 6567] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6563] <... futex resumed>) = 1 [pid 6561] <... futex resumed>) = 0 [pid 6567] <... mmap resumed>) = 0x7fb71c400000 [pid 6561] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6563] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6563] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6563] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 6561] <... futex resumed>) = 1 [pid 6561] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6563] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6561] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6563] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6561] <... futex resumed>) = 0 [pid 6563] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6561] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6563] <... futex resumed>) = 0 [pid 6561] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6563] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6561] exit_group(0 [pid 6563] <... futex resumed>) = ? [pid 6561] <... exit_group resumed>) = ? [pid 6563] +++ exited with 0 +++ [pid 6561] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6561, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6568 attached , child_tidptr=0x55556c203690) = 6568 [pid 6568] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6568] setpgid(0, 0) = 0 [pid 6568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6568] write(3, "1000", 4) = 4 [pid 6568] close(3) = 0 executing program [pid 6568] write(1, "executing program\n", 18) = 18 [pid 6568] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6568] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6568] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6568] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6568] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6568] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6569 attached => {parent_tid=[6569]}, 88) = 6569 [pid 6569] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6568] rt_sigprocmask(SIG_SETMASK, [], [pid 6569] <... rseq resumed>) = 0 [pid 6568] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6569] set_robust_list(0x7fb72497a9a0, 24 [pid 6568] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] <... set_robust_list resumed>) = 0 [pid 6568] <... futex resumed>) = 0 [pid 6569] rt_sigprocmask(SIG_SETMASK, [], [pid 6568] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6569] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6569] memfd_create("syzkaller", 0) = 3 [pid 6569] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6567] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6569] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6565] <... write resumed>) = 16777216 [pid 6565] munmap(0x7fb71c400000, 138412032) = 0 [pid 6565] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6565] close(3 [pid 6567] <... write resumed>) = 16777216 [pid 6567] munmap(0x7fb71c400000, 138412032) = 0 [pid 6567] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6567] close(3 [pid 6565] <... close resumed>) = 0 [pid 6565] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6564] <... futex resumed>) = 0 [pid 6565] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6564] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6564] <... futex resumed>) = 0 [pid 6565] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6564] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6565] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6565] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6564] <... futex resumed>) = 0 [pid 6565] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6564] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6564] <... futex resumed>) = 0 [pid 6565] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6564] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6565] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6565] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] <... write resumed>) = 16777216 [pid 6565] <... futex resumed>) = 1 [pid 6569] munmap(0x7fb71c400000, 138412032 [pid 6565] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6564] <... futex resumed>) = 0 [pid 6564] exit_group(0 [pid 6565] <... futex resumed>) = ? [pid 6564] <... exit_group resumed>) = ? [pid 6569] <... munmap resumed>) = 0 [pid 6565] +++ exited with 0 +++ [pid 6564] +++ exited with 0 +++ [pid 6569] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6564, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6569] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6569] close(3 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6570 ./strace-static-x86_64: Process 6570 attached [pid 6570] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6570] setpgid(0, 0) = 0 [pid 6570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6570] write(3, "1000", 4) = 4 [pid 6570] close(3) = 0 executing program [pid 6570] write(1, "executing program\n", 18) = 18 [pid 6570] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6570] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6570] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6570] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6570] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6570] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6570] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6571 attached => {parent_tid=[6571]}, 88) = 6571 [pid 6570] rt_sigprocmask(SIG_SETMASK, [], [pid 6571] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6570] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6571] <... rseq resumed>) = 0 [pid 6571] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6571] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6571] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6570] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6571] <... futex resumed>) = 0 [pid 6570] <... futex resumed>) = 1 [pid 6571] memfd_create("syzkaller", 0 [pid 6570] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6571] <... memfd_create resumed>) = 3 [pid 6571] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6567] <... close resumed>) = 0 [pid 6567] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6567] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6566] <... futex resumed>) = 0 [pid 6566] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] <... futex resumed>) = 0 [pid 6566] <... futex resumed>) = 1 [pid 6567] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6566] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6567] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6566] <... futex resumed>) = 0 [pid 6567] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6566] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6566] <... futex resumed>) = 0 [pid 6566] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6567] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6566] <... futex resumed>) = 0 [pid 6566] exit_group(0) = ? [pid 6567] +++ exited with 0 +++ [pid 6566] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6566, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6572 attached , child_tidptr=0x55556c203690) = 6572 [pid 6572] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6572] setpgid(0, 0) = 0 [pid 6572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6572] write(3, "1000", 4) = 4 [pid 6572] close(3executing program ) = 0 [pid 6572] write(1, "executing program\n", 18) = 18 [pid 6572] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6572] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6572] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6572] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6572] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6572] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6572] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6573]}, 88) = 6573 [pid 6572] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6572] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6572] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6573 attached [pid 6573] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6573] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6573] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6573] memfd_create("syzkaller", 0) = 3 [pid 6573] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6571] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6569] <... close resumed>) = 0 [pid 6569] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6569] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6568] <... futex resumed>) = 0 [pid 6568] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6569] <... futex resumed>) = 0 [pid 6568] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6569] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6569] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6568] <... futex resumed>) = 0 [pid 6569] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6568] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] <... futex resumed>) = 0 [pid 6568] <... futex resumed>) = 1 [pid 6569] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6568] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6569] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6569] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6568] <... futex resumed>) = 0 [pid 6569] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6568] exit_group(0 [pid 6569] <... futex resumed>) = ? [pid 6568] <... exit_group resumed>) = ? [pid 6569] +++ exited with 0 +++ [pid 6568] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6568, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=28 /* 0.28 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6574 ./strace-static-x86_64: Process 6574 attached [pid 6574] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6574] setpgid(0, 0) = 0 [pid 6574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6574] write(3, "1000", 4) = 4 [pid 6574] close(3) = 0 [pid 6574] write(1, "executing program\n", 18executing program ) = 18 [pid 6574] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6574] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6574] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6574] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6574] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6574] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6575]}, 88) = 6575 [pid 6574] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6574] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6574] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6575 attached [pid 6575] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6575] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6575] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6575] memfd_create("syzkaller", 0) = 3 [pid 6575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6573] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6571] <... write resumed>) = 16777216 [pid 6575] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6571] munmap(0x7fb71c400000, 138412032) = 0 [pid 6571] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6571] close(3 [pid 6573] <... write resumed>) = 16777216 [pid 6573] munmap(0x7fb71c400000, 138412032 [pid 6575] <... write resumed>) = 16777216 [pid 6573] <... munmap resumed>) = 0 [pid 6575] munmap(0x7fb71c400000, 138412032 [pid 6573] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6573] close(3 [pid 6571] <... close resumed>) = 0 [pid 6575] <... munmap resumed>) = 0 [pid 6571] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6575] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6571] <... futex resumed>) = 1 [pid 6570] <... futex resumed>) = 0 [pid 6575] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6571] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6570] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6570] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6575] close(3 [pid 6571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6571] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6571] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6570] <... futex resumed>) = 0 [pid 6570] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6570] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6571] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6571] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6570] <... futex resumed>) = 0 [pid 6570] exit_group(0) = ? [pid 6571] +++ exited with 0 +++ [pid 6570] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6570, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6576 ./strace-static-x86_64: Process 6576 attached [pid 6576] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6576] setpgid(0, 0) = 0 [pid 6576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6576] write(3, "1000", 4) = 4 [pid 6576] close(3executing program ) = 0 [pid 6576] write(1, "executing program\n", 18) = 18 [pid 6576] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6576] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6576] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6576] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6576] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6576] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6576] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6577]}, 88) = 6577 ./strace-static-x86_64: Process 6577 attached [pid 6576] rt_sigprocmask(SIG_SETMASK, [], [pid 6573] <... close resumed>) = 0 [pid 6576] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6576] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6576] <... futex resumed>) = 0 [pid 6577] <... rseq resumed>) = 0 [pid 6576] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6573] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] set_robust_list(0x7fb72497a9a0, 24 [pid 6573] <... futex resumed>) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6577] <... set_robust_list resumed>) = 0 [pid 6573] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] rt_sigprocmask(SIG_SETMASK, [], [pid 6573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6572] <... futex resumed>) = 0 [pid 6572] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6573] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6577] memfd_create("syzkaller", 0 [pid 6573] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6573] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] <... memfd_create resumed>) = 3 [pid 6573] <... futex resumed>) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6573] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6572] <... futex resumed>) = 0 [pid 6572] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] <... mmap resumed>) = 0x7fb71c400000 [pid 6573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6573] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6573] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6573] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] exit_group(0 [pid 6573] <... futex resumed>) = ? [pid 6572] <... exit_group resumed>) = ? [pid 6573] +++ exited with 0 +++ [pid 6572] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6572, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6575] <... close resumed>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6575] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6574] <... futex resumed>) = 0 [pid 6575] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6574] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6575] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6574] <... futex resumed>) = 0 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6575] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6574] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6578 attached [pid 6575] <... futex resumed>) = 0 [pid 6574] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6575] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6574] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6578 [pid 6578] set_robust_list(0x55556c2036a0, 24 [pid 6575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6574] <... futex resumed>) = 0 [pid 6578] <... set_robust_list resumed>) = 0 [pid 6575] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6574] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6575] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6578] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6575] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6578] <... prctl resumed>) = 0 [pid 6575] <... futex resumed>) = 1 [pid 6574] <... futex resumed>) = 0 [pid 6578] setpgid(0, 0) = 0 [pid 6575] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6574] exit_group(0 [pid 6578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6575] <... futex resumed>) = ? [pid 6574] <... exit_group resumed>) = ? [pid 6578] <... openat resumed>) = 3 [pid 6575] +++ exited with 0 +++ [pid 6574] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6574, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6578] write(3, "1000", 4) = 4 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6578] close(3) = 0 [pid 6578] write(1, "executing program\n", 18executing program ) = 18 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6578] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6579 attached [pid 6578] <... futex resumed>) = 0 [pid 6579] set_robust_list(0x55556c2036a0, 24 [pid 6578] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6577] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6579] <... set_robust_list resumed>) = 0 [pid 6578] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6579] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6578] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6579 [pid 6579] <... prctl resumed>) = 0 [pid 6578] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6579] setpgid(0, 0 [pid 6578] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6579] <... setpgid resumed>) = 0 [pid 6578] <... mmap resumed>) = 0x7fb72495a000 [pid 6579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6578] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6578] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6578] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6579] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6580 attached [pid 6578] <... clone3 resumed> => {parent_tid=[6580]}, 88) = 6580 [pid 6580] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6578] rt_sigprocmask(SIG_SETMASK, [], [pid 6580] <... rseq resumed>) = 0 [pid 6578] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6580] set_robust_list(0x7fb72497a9a0, 24 [pid 6578] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] <... set_robust_list resumed>) = 0 [pid 6578] <... futex resumed>) = 0 [pid 6580] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6579] write(3, "1000", 4 [pid 6578] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6579] <... write resumed>) = 4 [pid 6580] memfd_create("syzkaller", 0 [pid 6579] close(3) = 0 executing program [pid 6579] write(1, "executing program\n", 18) = 18 [pid 6579] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6579] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6579] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6579] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6579] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6579] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6580] <... memfd_create resumed>) = 3 [pid 6580] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6579] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6580] <... mmap resumed>) = 0x7fb71c400000 [pid 6579] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6581 attached [pid 6581] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6581] set_robust_list(0x7fb72497a9a0, 24 [pid 6579] <... clone3 resumed> => {parent_tid=[6581]}, 88) = 6581 [pid 6581] <... set_robust_list resumed>) = 0 [pid 6581] rt_sigprocmask(SIG_SETMASK, [], [pid 6579] rt_sigprocmask(SIG_SETMASK, [], [pid 6581] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6581] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6579] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6579] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6581] <... futex resumed>) = 0 [pid 6579] <... futex resumed>) = 1 [pid 6581] memfd_create("syzkaller", 0 [pid 6579] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6581] <... memfd_create resumed>) = 3 [pid 6581] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6580] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6581] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6577] <... write resumed>) = 16777216 [pid 6577] munmap(0x7fb71c400000, 138412032) = 0 [pid 6577] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6577] close(3) = 0 [pid 6577] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6576] <... futex resumed>) = 0 [pid 6577] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6576] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6576] <... futex resumed>) = 0 [pid 6577] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6577] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6576] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6576] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] <... futex resumed>) = 0 [pid 6576] <... futex resumed>) = 1 [pid 6577] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6576] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6577] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6576] exit_group(0 [pid 6577] <... futex resumed>) = ? [pid 6576] <... exit_group resumed>) = ? [pid 6580] <... write resumed>) = 16777216 [pid 6577] +++ exited with 0 +++ [pid 6576] +++ exited with 0 +++ [pid 6580] munmap(0x7fb71c400000, 138412032 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6576, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6582 attached [pid 6582] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6582 [pid 6582] <... set_robust_list resumed>) = 0 [pid 6582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6582] setpgid(0, 0) = 0 [pid 6582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6582] write(3, "1000", 4 [pid 6580] <... munmap resumed>) = 0 [pid 6582] <... write resumed>) = 4 [pid 6580] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6582] close(3 [pid 6580] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6582] <... close resumed>) = 0 [pid 6582] write(1, "executing program\n", 18 [pid 6580] close(3executing program [pid 6582] <... write resumed>) = 18 [pid 6582] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6582] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6582] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6582] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6582] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6582] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6582] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6583 attached => {parent_tid=[6583]}, 88) = 6583 [pid 6582] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6582] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6583] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6582] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6583] <... rseq resumed>) = 0 [pid 6583] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6583] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6583] memfd_create("syzkaller", 0) = 3 [pid 6583] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6581] <... write resumed>) = 16777216 [pid 6581] munmap(0x7fb71c400000, 138412032) = 0 [pid 6581] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6581] close(3 [pid 6580] <... close resumed>) = 0 [pid 6583] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6580] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6578] <... futex resumed>) = 0 [pid 6580] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6578] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6578] <... futex resumed>) = 0 [pid 6580] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6580] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6578] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6578] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] <... futex resumed>) = 0 [pid 6578] <... futex resumed>) = 1 [pid 6580] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6578] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6580] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6580] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6578] <... futex resumed>) = 0 [pid 6580] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6578] exit_group(0 [pid 6580] <... futex resumed>) = ? [pid 6578] <... exit_group resumed>) = ? [pid 6580] +++ exited with 0 +++ [pid 6578] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6578, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6584 attached , child_tidptr=0x55556c203690) = 6584 [pid 6584] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6584] setpgid(0, 0) = 0 [pid 6584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6584] write(3, "1000", 4) = 4 [pid 6584] close(3) = 0 [pid 6584] write(1, "executing program\n", 18executing program ) = 18 [pid 6584] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6584] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6584] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6584] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6584] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6584] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6584] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6585 attached => {parent_tid=[6585]}, 88) = 6585 [pid 6584] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6584] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6585] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6584] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6585] <... rseq resumed>) = 0 [pid 6585] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6585] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6585] memfd_create("syzkaller", 0) = 3 [pid 6585] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6581] <... close resumed>) = 0 [pid 6581] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6579] <... futex resumed>) = 0 [pid 6579] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6579] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6581] <... futex resumed>) = 1 [pid 6581] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6581] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6579] <... futex resumed>) = 0 [pid 6581] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6579] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6579] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6581] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6581] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6581] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6579] <... futex resumed>) = 0 [pid 6579] exit_group(0) = ? [pid 6581] +++ exited with 0 +++ [pid 6579] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6579, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6586 ./strace-static-x86_64: Process 6586 attached [pid 6586] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6586] setpgid(0, 0) = 0 [pid 6586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6586] write(3, "1000", 4) = 4 [pid 6586] close(3) = 0 [pid 6586] write(1, "executing program\n", 18executing program ) = 18 [pid 6586] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6586] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6586] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6586] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6586] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6586] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6587 attached [pid 6587] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6586] <... clone3 resumed> => {parent_tid=[6587]}, 88) = 6587 [pid 6587] <... rseq resumed>) = 0 [pid 6586] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6587] set_robust_list(0x7fb72497a9a0, 24 [pid 6586] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] <... set_robust_list resumed>) = 0 [pid 6586] <... futex resumed>) = 0 [pid 6587] rt_sigprocmask(SIG_SETMASK, [], [pid 6586] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6587] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6587] memfd_create("syzkaller", 0) = 3 [pid 6587] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6583] <... write resumed>) = 16777216 [pid 6583] munmap(0x7fb71c400000, 138412032 [pid 6585] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6583] <... munmap resumed>) = 0 [pid 6583] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6583] close(3 [pid 6587] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6583] <... close resumed>) = 0 [pid 6583] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6582] <... futex resumed>) = 0 [pid 6583] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6582] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6582] <... futex resumed>) = 0 [pid 6583] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6582] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6583] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6582] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6583] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6582] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6582] <... futex resumed>) = 0 [pid 6583] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6583] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6582] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6582] exit_group(0 [pid 6583] <... futex resumed>) = ? [pid 6582] <... exit_group resumed>) = ? [pid 6583] +++ exited with 0 +++ [pid 6582] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6582, si_uid=0, si_status=0, si_utime=0, si_stime=40 /* 0.40 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6588 ./strace-static-x86_64: Process 6588 attached [pid 6588] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6588] setpgid(0, 0) = 0 [pid 6588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6588] write(3, "1000", 4) = 4 [pid 6588] close(3) = 0 executing program [pid 6588] write(1, "executing program\n", 18) = 18 [pid 6588] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6588] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6588] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6588] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6588] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6588] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6588] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6589]}, 88) = 6589 [pid 6588] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 6589 attached [pid 6588] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6588] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6589] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6589] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6589] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6589] memfd_create("syzkaller", 0) = 3 [pid 6589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6585] <... write resumed>) = 16777216 [pid 6585] munmap(0x7fb71c400000, 138412032) = 0 [pid 6587] <... write resumed>) = 16777216 [pid 6585] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6587] munmap(0x7fb71c400000, 138412032 [pid 6585] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6589] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6585] close(3 [pid 6587] <... munmap resumed>) = 0 [pid 6587] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6587] close(3 [pid 6589] <... write resumed>) = 16777216 [pid 6589] munmap(0x7fb71c400000, 138412032 [pid 6585] <... close resumed>) = 0 [pid 6589] <... munmap resumed>) = 0 [pid 6585] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6585] <... futex resumed>) = 1 [pid 6584] <... futex resumed>) = 0 [pid 6585] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6584] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] close(3 [pid 6584] <... futex resumed>) = 0 [pid 6584] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6585] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6584] <... futex resumed>) = 0 [pid 6585] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6584] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6584] <... futex resumed>) = 0 [pid 6585] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6584] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6585] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6584] <... futex resumed>) = 0 [pid 6585] <... futex resumed>) = 1 [pid 6584] exit_group(0 [pid 6585] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6584] <... exit_group resumed>) = ? [pid 6585] +++ exited with 0 +++ [pid 6584] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6584, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6587] <... close resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6587] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6590 attached [pid 6587] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6586] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] set_robust_list(0x55556c2036a0, 24 [pid 6587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6586] <... futex resumed>) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6590 [pid 6590] <... set_robust_list resumed>) = 0 [pid 6587] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6586] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6590] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6587] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6590] <... prctl resumed>) = 0 [pid 6590] setpgid(0, 0) = 0 [pid 6590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6587] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] <... openat resumed>) = 3 [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 6590] write(3, "1000", 4 [pid 6587] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6586] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] <... write resumed>) = 4 [pid 6586] <... futex resumed>) = 0 [pid 6587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6590] close(3 [pid 6587] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6586] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} executing program [pid 6590] <... close resumed>) = 0 [pid 6587] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6590] write(1, "executing program\n", 18 [pid 6587] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] <... write resumed>) = 18 [pid 6590] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 6586] exit_group(0 [pid 6590] <... futex resumed>) = 0 [pid 6586] <... exit_group resumed>) = ? [pid 6590] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6590] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6590] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6587] +++ exited with 0 +++ [pid 6590] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6586] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6586, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 6590] <... mprotect resumed>) = 0 [pid 6590] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6590] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 6591 attached [pid 6590] <... clone3 resumed> => {parent_tid=[6591]}, 88) = 6591 [pid 6591] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6590] rt_sigprocmask(SIG_SETMASK, [], [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6591] <... rseq resumed>) = 0 [pid 6590] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6591] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6591] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6592 attached NULL, 8) = 0 [pid 6590] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6592] set_robust_list(0x55556c2036a0, 24 [pid 6590] <... futex resumed>) = 0 [pid 6592] <... set_robust_list resumed>) = 0 [pid 6590] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6591] memfd_create("syzkaller", 0 [pid 6592] <... prctl resumed>) = 0 [pid 6592] setpgid(0, 0 [pid 6591] <... memfd_create resumed>) = 3 [pid 6592] <... setpgid resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6592 [pid 6592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6591] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6592] <... openat resumed>) = 3 [pid 6592] write(3, "1000", 4) = 4 executing program [pid 6592] close(3) = 0 [pid 6592] write(1, "executing program\n", 18) = 18 [pid 6592] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6592] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6592] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6589] <... close resumed>) = 0 [pid 6592] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6589] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6588] <... futex resumed>) = 0 [pid 6592] <... mprotect resumed>) = 0 [pid 6589] <... futex resumed>) = 1 [pid 6588] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6592] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6589] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6588] <... futex resumed>) = 0 [pid 6592] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6588] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6592] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6589] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6589] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6588] <... futex resumed>) = 0 [pid 6589] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6588] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6588] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6593 attached [pid 6589] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6588] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6593] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6592] <... clone3 resumed> => {parent_tid=[6593]}, 88) = 6593 [pid 6589] <... futex resumed>) = 0 [pid 6588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6593] <... rseq resumed>) = 0 [pid 6592] rt_sigprocmask(SIG_SETMASK, [], [pid 6589] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6588] exit_group(0 [pid 6593] set_robust_list(0x7fb72497a9a0, 24 [pid 6592] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6589] <... futex resumed>) = ? [pid 6588] <... exit_group resumed>) = ? [pid 6593] <... set_robust_list resumed>) = 0 [pid 6592] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] +++ exited with 0 +++ [pid 6593] rt_sigprocmask(SIG_SETMASK, [], [pid 6592] <... futex resumed>) = 0 [pid 6592] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6593] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6593] memfd_create("syzkaller", 0 [pid 6588] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6588, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 6593] <... memfd_create resumed>) = 3 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6593] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6594 ./strace-static-x86_64: Process 6594 attached [pid 6594] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6594] setpgid(0, 0) = 0 [pid 6594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6594] write(3, "1000", 4) = 4 [pid 6594] close(3) = 0 [pid 6594] write(1, "executing program\n", 18executing program ) = 18 [pid 6594] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6594] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6594] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6594] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6594] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6594] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6595 attached [pid 6595] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6595] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6595] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6594] <... clone3 resumed> => {parent_tid=[6595]}, 88) = 6595 [pid 6595] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6594] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6594] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6595] <... futex resumed>) = 0 [pid 6594] <... futex resumed>) = 1 [pid 6595] memfd_create("syzkaller", 0 [pid 6594] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6595] <... memfd_create resumed>) = 3 [pid 6595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6593] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6591] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6595] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6593] <... write resumed>) = 16777216 [pid 6593] munmap(0x7fb71c400000, 138412032) = 0 [pid 6593] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6593] close(3 [pid 6595] <... write resumed>) = 16777216 [pid 6591] <... write resumed>) = 16777216 [pid 6591] munmap(0x7fb71c400000, 138412032 [pid 6595] munmap(0x7fb71c400000, 138412032 [pid 6591] <... munmap resumed>) = 0 [pid 6591] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6595] <... munmap resumed>) = 0 [pid 6595] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6591] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6595] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6591] close(3 [pid 6595] close(3 [pid 6593] <... close resumed>) = 0 [pid 6593] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6593] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6592] <... futex resumed>) = 0 [pid 6592] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] <... futex resumed>) = 0 [pid 6592] <... futex resumed>) = 1 [pid 6593] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6592] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6593] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6593] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6592] <... futex resumed>) = 0 [pid 6593] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6592] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6593] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6592] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6593] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6593] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6592] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6593] <... futex resumed>) = 0 [pid 6592] exit_group(0) = ? [pid 6593] +++ exited with 0 +++ [pid 6592] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6592, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=28 /* 0.28 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6596 attached , child_tidptr=0x55556c203690) = 6596 [pid 6596] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6596] setpgid(0, 0) = 0 [pid 6596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6596] write(3, "1000", 4) = 4 [pid 6596] close(3) = 0 executing program [pid 6596] write(1, "executing program\n", 18) = 18 [pid 6596] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6596] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6596] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6596] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6596] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6596] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6596] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6597 attached => {parent_tid=[6597]}, 88) = 6597 [pid 6597] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6596] rt_sigprocmask(SIG_SETMASK, [], [pid 6597] <... rseq resumed>) = 0 [pid 6596] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6597] set_robust_list(0x7fb72497a9a0, 24 [pid 6596] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6597] <... set_robust_list resumed>) = 0 [pid 6596] <... futex resumed>) = 0 [pid 6597] rt_sigprocmask(SIG_SETMASK, [], [pid 6596] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6597] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6597] memfd_create("syzkaller", 0) = 3 [pid 6597] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6595] <... close resumed>) = 0 [pid 6595] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6591] <... close resumed>) = 0 [pid 6595] <... futex resumed>) = 1 [pid 6595] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6594] <... futex resumed>) = 0 [pid 6595] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6594] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6595] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6594] <... futex resumed>) = 0 [pid 6595] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6594] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6595] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] <... futex resumed>) = 0 [pid 6595] <... futex resumed>) = 1 [pid 6594] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6595] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6594] <... futex resumed>) = 0 [pid 6595] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6594] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6595] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6595] <... futex resumed>) = 0 [pid 6594] exit_group(0) = ? [pid 6595] +++ exited with 0 +++ [pid 6594] +++ exited with 0 +++ [pid 6591] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6590] <... futex resumed>) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6594, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 6591] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6590] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6590] <... futex resumed>) = 0 [pid 6591] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6590] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6591] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6591] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6598 attached [pid 6591] <... futex resumed>) = 1 [pid 6590] <... futex resumed>) = 0 [pid 6598] set_robust_list(0x55556c2036a0, 24 [pid 6591] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6590] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6598 [pid 6598] <... set_robust_list resumed>) = 0 [pid 6591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6590] <... futex resumed>) = 0 [pid 6598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6591] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6590] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6591] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6598] <... prctl resumed>) = 0 [pid 6598] setpgid(0, 0) = 0 [pid 6598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6597] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6591] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6598] write(3, "1000", 4 [pid 6591] <... futex resumed>) = 1 [pid 6590] <... futex resumed>) = 0 [pid 6598] <... write resumed>) = 4 [pid 6591] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6590] exit_group(0 [pid 6598] close(3 [pid 6591] <... futex resumed>) = ? [pid 6590] <... exit_group resumed>) = ? executing program [pid 6598] <... close resumed>) = 0 [pid 6598] write(1, "executing program\n", 18) = 18 [pid 6598] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6598] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6598] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6598] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6598] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6591] +++ exited with 0 +++ [pid 6590] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6590, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6598] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6598] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6599 attached [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6598] <... clone3 resumed> => {parent_tid=[6599]}, 88) = 6599 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6598] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6598] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6598] <... futex resumed>) = 0 [pid 6598] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6600 attached [pid 6600] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6600] setpgid(0, 0) = 0 [pid 6599] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6600 [pid 6599] <... rseq resumed>) = 0 [pid 6600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6599] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6599] rt_sigprocmask(SIG_SETMASK, [], [pid 6600] <... openat resumed>) = 3 [pid 6599] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6599] memfd_create("syzkaller", 0 [pid 6600] write(3, "1000", 4) = 4 [pid 6600] close(3) = 0 executing program [pid 6600] write(1, "executing program\n", 18 [pid 6599] <... memfd_create resumed>) = 3 [pid 6600] <... write resumed>) = 18 [pid 6600] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6600] <... futex resumed>) = 0 [pid 6599] <... mmap resumed>) = 0x7fb71c400000 [pid 6600] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6600] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6600] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6600] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6600] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6600] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6601]}, 88) = 6601 [pid 6600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6600] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6600] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6601 attached [pid 6601] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6601] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6601] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6601] memfd_create("syzkaller", 0) = 3 [pid 6601] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6599] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6601] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6597] <... write resumed>) = 16777216 [pid 6597] munmap(0x7fb71c400000, 138412032) = 0 [pid 6597] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6597] close(3 [pid 6601] <... write resumed>) = 16777216 [pid 6601] munmap(0x7fb71c400000, 138412032 [pid 6599] <... write resumed>) = 16777216 [pid 6599] munmap(0x7fb71c400000, 138412032 [pid 6597] <... close resumed>) = 0 [pid 6597] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6596] <... futex resumed>) = 0 [pid 6597] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6596] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6601] <... munmap resumed>) = 0 [pid 6597] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6596] <... futex resumed>) = 0 [pid 6601] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6597] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6596] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6601] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6597] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6597] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6601] close(3 [pid 6597] <... futex resumed>) = 1 [pid 6596] <... futex resumed>) = 0 [pid 6599] <... munmap resumed>) = 0 [pid 6597] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6596] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6597] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6596] <... futex resumed>) = 0 [pid 6599] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6596] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6597] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6599] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6599] close(3 [pid 6597] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6596] <... futex resumed>) = 0 [pid 6596] exit_group(0) = ? [pid 6597] +++ exited with 0 +++ [pid 6596] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6596, si_uid=0, si_status=0, si_utime=0, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6602 attached [pid 6602] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6602 [pid 6602] <... set_robust_list resumed>) = 0 [pid 6602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6602] setpgid(0, 0) = 0 [pid 6602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6602] write(3, "1000", 4) = 4 [pid 6602] close(3executing program ) = 0 [pid 6602] write(1, "executing program\n", 18) = 18 [pid 6602] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6602] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6602] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6602] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6602] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6602] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6602] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6603 attached [pid 6603] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6602] <... clone3 resumed> => {parent_tid=[6603]}, 88) = 6603 [pid 6603] <... rseq resumed>) = 0 [pid 6602] rt_sigprocmask(SIG_SETMASK, [], [pid 6603] set_robust_list(0x7fb72497a9a0, 24 [pid 6602] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6603] <... set_robust_list resumed>) = 0 [pid 6602] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6603] rt_sigprocmask(SIG_SETMASK, [], [pid 6602] <... futex resumed>) = 0 [pid 6603] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6602] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6603] memfd_create("syzkaller", 0) = 3 [pid 6603] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6601] <... close resumed>) = 0 [pid 6601] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6600] <... futex resumed>) = 0 [pid 6601] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6600] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6601] <... futex resumed>) = 0 [pid 6600] <... futex resumed>) = 1 [pid 6601] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6600] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6601] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6601] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6600] <... futex resumed>) = 0 [pid 6601] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6600] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6601] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6600] <... futex resumed>) = 0 [pid 6601] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6600] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6601] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6601] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6600] <... futex resumed>) = 0 [pid 6601] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6600] exit_group(0 [pid 6601] <... futex resumed>) = ? [pid 6600] <... exit_group resumed>) = ? [pid 6601] +++ exited with 0 +++ [pid 6600] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6600, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6604 ./strace-static-x86_64: Process 6604 attached [pid 6604] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6604] setpgid(0, 0) = 0 [pid 6604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6604] write(3, "1000", 4 [pid 6599] <... close resumed>) = 0 [pid 6604] <... write resumed>) = 4 [pid 6599] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] close(3 [pid 6598] <... futex resumed>) = 0 [pid 6604] <... close resumed>) = 0 [pid 6599] <... futex resumed>) = 1 [pid 6598] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000executing program [pid 6604] write(1, "executing program\n", 18 [pid 6599] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6598] <... futex resumed>) = 0 [pid 6604] <... write resumed>) = 18 [pid 6599] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6598] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6604] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] <... futex resumed>) = 0 [pid 6604] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6599] <... futex resumed>) = 1 [pid 6598] <... futex resumed>) = 0 [pid 6604] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6598] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6599] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6598] <... futex resumed>) = 0 [pid 6604] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6599] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6598] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6604] <... mmap resumed>) = 0x7fb72495a000 [pid 6599] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6598] <... futex resumed>) = 0 [pid 6604] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6599] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6598] exit_group(0 [pid 6604] <... mprotect resumed>) = 0 [pid 6599] <... futex resumed>) = ? [pid 6598] <... exit_group resumed>) = ? [pid 6604] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6599] +++ exited with 0 +++ [pid 6598] +++ exited with 0 +++ [pid 6604] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6604] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6598, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- ./strace-static-x86_64: Process 6605 attached [pid 6604] <... clone3 resumed> => {parent_tid=[6605]}, 88) = 6605 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6604] rt_sigprocmask(SIG_SETMASK, [], [pid 6605] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6605] <... rseq resumed>) = 0 [pid 6604] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6605] set_robust_list(0x7fb72497a9a0, 24 [pid 6604] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6604] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6605] <... set_robust_list resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6606 [pid 6605] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6606 attached NULL, 8) = 0 [pid 6606] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6605] memfd_create("syzkaller", 0) = 3 [pid 6605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6606] <... prctl resumed>) = 0 [pid 6606] setpgid(0, 0 [pid 6605] <... mmap resumed>) = 0x7fb71c400000 [pid 6606] <... setpgid resumed>) = 0 [pid 6606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6606] write(3, "1000", 4 [pid 6603] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6606] <... write resumed>) = 4 [pid 6606] close(3) = 0 executing program [pid 6606] write(1, "executing program\n", 18) = 18 [pid 6606] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6606] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6606] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6606] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6606] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6606] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6607 attached => {parent_tid=[6607]}, 88) = 6607 [pid 6606] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6606] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6606] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6607] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6607] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6607] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6607] memfd_create("syzkaller", 0) = 3 [pid 6607] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6605] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6607] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6603] <... write resumed>) = 16777216 [pid 6603] munmap(0x7fb71c400000, 138412032) = 0 [pid 6603] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6603] close(3 [pid 6605] <... write resumed>) = 16777216 [pid 6605] munmap(0x7fb71c400000, 138412032) = 0 [pid 6605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6605] close(3 [pid 6603] <... close resumed>) = 0 [pid 6603] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6602] <... futex resumed>) = 0 [pid 6603] <... futex resumed>) = 1 [pid 6602] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6603] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6602] <... futex resumed>) = 0 [pid 6603] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6602] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6603] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6602] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6603] <... futex resumed>) = 0 [pid 6602] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6603] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6602] <... futex resumed>) = 0 [pid 6603] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6602] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6603] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6603] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6602] <... futex resumed>) = 0 [pid 6602] exit_group(0 [pid 6603] <... futex resumed>) = ? [pid 6602] <... exit_group resumed>) = ? [pid 6603] +++ exited with 0 +++ [pid 6602] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6602, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6608 attached , child_tidptr=0x55556c203690) = 6608 [pid 6608] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6608] setpgid(0, 0) = 0 [pid 6608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6608] write(3, "1000", 4) = 4 [pid 6608] close(3) = 0 executing program [pid 6608] write(1, "executing program\n", 18) = 18 [pid 6608] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6608] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6608] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6608] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6608] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6608] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6608] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6609 attached [pid 6609] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6608] <... clone3 resumed> => {parent_tid=[6609]}, 88) = 6609 [pid 6609] <... rseq resumed>) = 0 [pid 6608] rt_sigprocmask(SIG_SETMASK, [], [pid 6609] set_robust_list(0x7fb72497a9a0, 24 [pid 6608] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6609] <... set_robust_list resumed>) = 0 [pid 6608] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] rt_sigprocmask(SIG_SETMASK, [], [pid 6608] <... futex resumed>) = 0 [pid 6609] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6608] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6609] memfd_create("syzkaller", 0) = 3 [pid 6609] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6607] <... write resumed>) = 16777216 [pid 6607] munmap(0x7fb71c400000, 138412032) = 0 [pid 6605] <... close resumed>) = 0 [pid 6607] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6605] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6607] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6605] <... futex resumed>) = 1 [pid 6605] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6607] close(3 [pid 6604] <... futex resumed>) = 0 [pid 6604] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6604] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6605] <... futex resumed>) = 0 [pid 6605] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6605] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6605] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6604] <... futex resumed>) = 0 [pid 6604] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6605] <... futex resumed>) = 0 [pid 6605] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6605] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6604] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6605] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6604] exit_group(0 [pid 6605] <... futex resumed>) = ? [pid 6604] <... exit_group resumed>) = ? [pid 6605] +++ exited with 0 +++ [pid 6604] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6604, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6610 attached , child_tidptr=0x55556c203690) = 6610 [pid 6610] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6610] setpgid(0, 0) = 0 [pid 6610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6610] write(3, "1000", 4executing program ) = 4 [pid 6610] close(3) = 0 [pid 6610] write(1, "executing program\n", 18) = 18 [pid 6610] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6610] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6610] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6610] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6610] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6610] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6611 attached [pid 6611] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6610] <... clone3 resumed> => {parent_tid=[6611]}, 88) = 6611 [pid 6611] <... rseq resumed>) = 0 [pid 6610] rt_sigprocmask(SIG_SETMASK, [], [pid 6611] set_robust_list(0x7fb72497a9a0, 24 [pid 6610] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6611] <... set_robust_list resumed>) = 0 [pid 6610] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6611] rt_sigprocmask(SIG_SETMASK, [], [pid 6610] <... futex resumed>) = 0 [pid 6611] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6610] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6611] memfd_create("syzkaller", 0) = 3 [pid 6611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6609] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6607] <... close resumed>) = 0 [pid 6607] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6606] <... futex resumed>) = 0 [pid 6607] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6606] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6607] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6606] <... futex resumed>) = 0 [pid 6607] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6606] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6607] <... futex resumed>) = 0 [pid 6606] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6607] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6606] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6607] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6606] <... futex resumed>) = 0 [pid 6607] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6606] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6607] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6607] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6606] <... futex resumed>) = 0 [pid 6607] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6606] exit_group(0 [pid 6607] <... futex resumed>) = ? [pid 6606] <... exit_group resumed>) = ? [pid 6607] +++ exited with 0 +++ [pid 6606] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6606, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6612 attached [pid 6612] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6612 [pid 6612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6612] setpgid(0, 0) = 0 [pid 6612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6612] write(3, "1000", 4) = 4 executing program [pid 6612] close(3) = 0 [pid 6612] write(1, "executing program\n", 18) = 18 [pid 6612] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6612] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6612] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6612] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6612] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6612] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6613 attached => {parent_tid=[6613]}, 88) = 6613 [pid 6612] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6612] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6612] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6613] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6613] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6613] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6613] memfd_create("syzkaller", 0) = 3 [pid 6613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6613] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6611] <... write resumed>) = 16777216 [pid 6611] munmap(0x7fb71c400000, 138412032 [pid 6609] <... write resumed>) = 16777216 [pid 6611] <... munmap resumed>) = 0 [pid 6611] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6609] munmap(0x7fb71c400000, 138412032 [pid 6611] close(3 [pid 6609] <... munmap resumed>) = 0 [pid 6609] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6609] close(3 [pid 6611] <... close resumed>) = 0 [pid 6611] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6611] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6610] <... futex resumed>) = 0 [pid 6610] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6611] <... futex resumed>) = 0 [pid 6611] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6611] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6611] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6610] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6610] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6611] <... futex resumed>) = 0 [pid 6611] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6611] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6611] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6610] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6610] exit_group(0) = ? [pid 6611] <... futex resumed>) = ? [pid 6611] +++ exited with 0 +++ [pid 6610] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6610, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6614 ./strace-static-x86_64: Process 6614 attached [pid 6614] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6614] setpgid(0, 0) = 0 [pid 6614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6614] write(3, "1000", 4) = 4 executing program [pid 6614] close(3) = 0 [pid 6614] write(1, "executing program\n", 18) = 18 [pid 6614] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6614] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6614] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6614] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6614] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6614] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6615 attached => {parent_tid=[6615]}, 88) = 6615 [pid 6614] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6614] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6615] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6615] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6614] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6615] memfd_create("syzkaller", 0) = 3 [pid 6615] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6609] <... close resumed>) = 0 [pid 6609] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6608] <... futex resumed>) = 0 [pid 6609] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6608] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6608] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6609] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6609] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6608] <... futex resumed>) = 0 [pid 6609] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6608] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] <... futex resumed>) = 0 [pid 6608] <... futex resumed>) = 1 [pid 6608] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6609] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6609] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6608] <... futex resumed>) = 0 [pid 6609] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6608] exit_group(0 [pid 6609] <... futex resumed>) = ? [pid 6608] <... exit_group resumed>) = ? [pid 6613] <... write resumed>) = 16777216 [pid 6609] +++ exited with 0 +++ [pid 6608] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6608, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6613] munmap(0x7fb71c400000, 138412032 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6616 attached , child_tidptr=0x55556c203690) = 6616 [pid 6613] <... munmap resumed>) = 0 [pid 6616] set_robust_list(0x55556c2036a0, 24 [pid 6615] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6616] <... set_robust_list resumed>) = 0 [pid 6613] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6613] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6616] <... prctl resumed>) = 0 [pid 6613] close(3 [pid 6616] setpgid(0, 0) = 0 [pid 6616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6616] write(3, "1000", 4) = 4 [pid 6616] close(3executing program ) = 0 [pid 6616] write(1, "executing program\n", 18) = 18 [pid 6616] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6616] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6616] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6616] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6616] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6616] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6617]}, 88) = 6617 [pid 6616] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6616] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6616] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6617 attached [pid 6617] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6617] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6617] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6617] memfd_create("syzkaller", 0) = 3 [pid 6617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6615] <... write resumed>) = 16777216 [pid 6617] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6613] <... close resumed>) = 0 [pid 6615] munmap(0x7fb71c400000, 138412032 [pid 6613] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6612] <... futex resumed>) = 0 [pid 6613] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6612] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6612] <... futex resumed>) = 0 [pid 6613] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6612] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6613] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6613] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6612] <... futex resumed>) = 0 [pid 6613] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6612] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6613] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6612] <... futex resumed>) = 0 [pid 6613] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6612] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6613] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6612] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6612] exit_group(0) = ? [pid 6613] <... futex resumed>) = ? [pid 6615] <... munmap resumed>) = 0 [pid 6613] +++ exited with 0 +++ [pid 6612] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6612, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 6615] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6615] close(3 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6618 attached , child_tidptr=0x55556c203690) = 6618 [pid 6618] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6618] setpgid(0, 0) = 0 [pid 6618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6618] write(3, "1000", 4) = 4 [pid 6618] close(3) = 0 executing program [pid 6618] write(1, "executing program\n", 18) = 18 [pid 6618] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6618] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6618] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6618] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6618] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6618] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6619 attached [pid 6619] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6618] <... clone3 resumed> => {parent_tid=[6619]}, 88) = 6619 [pid 6619] <... rseq resumed>) = 0 [pid 6618] rt_sigprocmask(SIG_SETMASK, [], [pid 6619] set_robust_list(0x7fb72497a9a0, 24 [pid 6618] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6619] <... set_robust_list resumed>) = 0 [pid 6618] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] rt_sigprocmask(SIG_SETMASK, [], [pid 6618] <... futex resumed>) = 0 [pid 6619] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6618] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6619] memfd_create("syzkaller", 0) = 3 [pid 6619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6619] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6615] <... close resumed>) = 0 [pid 6615] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6614] <... futex resumed>) = 0 [pid 6615] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6614] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6614] <... futex resumed>) = 0 [pid 6615] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6614] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6615] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6615] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6614] <... futex resumed>) = 0 [pid 6615] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6614] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6614] <... futex resumed>) = 0 [pid 6615] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6614] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6615] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6615] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6614] <... futex resumed>) = 0 [pid 6615] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6614] exit_group(0 [pid 6617] <... write resumed>) = 16777216 [pid 6617] munmap(0x7fb71c400000, 138412032 [pid 6615] <... futex resumed>) = ? [pid 6614] <... exit_group resumed>) = ? [pid 6615] +++ exited with 0 +++ [pid 6614] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6614, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6620 attached [pid 6617] <... munmap resumed>) = 0 [pid 6617] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6620] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6620 [pid 6620] <... prctl resumed>) = 0 [pid 6617] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6620] setpgid(0, 0 [pid 6617] close(3 [pid 6620] <... setpgid resumed>) = 0 [pid 6620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6620] write(3, "1000", 4) = 4 [pid 6620] close(3) = 0 executing program [pid 6620] write(1, "executing program\n", 18) = 18 [pid 6620] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6620] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6620] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6620] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6620] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6620] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6621 attached => {parent_tid=[6621]}, 88) = 6621 [pid 6620] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6620] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6621] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6620] <... futex resumed>) = 0 [pid 6621] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6620] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6621] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6621] memfd_create("syzkaller", 0) = 3 [pid 6621] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6617] <... close resumed>) = 0 [pid 6617] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6616] <... futex resumed>) = 0 [pid 6616] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6616] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6617] <... futex resumed>) = 1 [pid 6617] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6617] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6616] <... futex resumed>) = 0 [pid 6616] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6617] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6616] <... futex resumed>) = 0 [pid 6617] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6616] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6617] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6616] <... futex resumed>) = 0 [pid 6616] exit_group(0) = ? [pid 6619] <... write resumed>) = 16777216 [pid 6617] +++ exited with 0 +++ [pid 6616] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6616, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6619] munmap(0x7fb71c400000, 138412032 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6622 attached [pid 6621] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6622 [pid 6622] set_robust_list(0x55556c2036a0, 24 [pid 6619] <... munmap resumed>) = 0 [pid 6622] <... set_robust_list resumed>) = 0 [pid 6622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6622] setpgid(0, 0) = 0 [pid 6622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6622] <... openat resumed>) = 3 [pid 6619] close(3 [pid 6622] write(3, "1000", 4) = 4 executing program [pid 6622] close(3) = 0 [pid 6622] write(1, "executing program\n", 18) = 18 [pid 6622] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6622] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6622] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6622] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6622] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6623 attached => {parent_tid=[6623]}, 88) = 6623 [pid 6622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6622] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6622] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6623] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6623] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6623] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6623] memfd_create("syzkaller", 0) = 3 [pid 6623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6619] <... close resumed>) = 0 [pid 6619] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6618] <... futex resumed>) = 0 [pid 6619] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6618] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6618] <... futex resumed>) = 0 [pid 6619] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6619] <... futex resumed>) = 0 [pid 6618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6619] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6618] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6618] <... futex resumed>) = 0 [pid 6618] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6619] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6618] <... futex resumed>) = 0 [pid 6619] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6618] exit_group(0) = ? [pid 6619] <... futex resumed>) = ? [pid 6619] +++ exited with 0 +++ [pid 6618] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6618, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6623] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6624 attached , child_tidptr=0x55556c203690) = 6624 [pid 6624] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6624] setpgid(0, 0) = 0 [pid 6624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6624] write(3, "1000", 4) = 4 [pid 6624] close(3executing program ) = 0 [pid 6624] write(1, "executing program\n", 18) = 18 [pid 6624] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6624] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6624] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6624] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6624] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6624] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6624] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6625 attached => {parent_tid=[6625]}, 88) = 6625 [pid 6625] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6624] rt_sigprocmask(SIG_SETMASK, [], [pid 6625] <... rseq resumed>) = 0 [pid 6624] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6625] set_robust_list(0x7fb72497a9a0, 24 [pid 6624] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] <... set_robust_list resumed>) = 0 [pid 6624] <... futex resumed>) = 0 [pid 6625] rt_sigprocmask(SIG_SETMASK, [], [pid 6624] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6625] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6625] memfd_create("syzkaller", 0) = 3 [pid 6625] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6621] <... write resumed>) = 16777216 [pid 6621] munmap(0x7fb71c400000, 138412032) = 0 [pid 6621] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6621] close(3 [pid 6625] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6621] <... close resumed>) = 0 [pid 6621] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6621] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6620] <... futex resumed>) = 0 [pid 6620] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6621] <... futex resumed>) = 0 [pid 6620] <... futex resumed>) = 1 [pid 6621] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6621] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6621] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6620] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6620] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6621] <... futex resumed>) = 0 [pid 6620] <... futex resumed>) = 1 [pid 6621] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6620] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6621] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6623] <... write resumed>) = 16777216 [pid 6621] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6621] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6620] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6623] munmap(0x7fb71c400000, 138412032 [pid 6620] exit_group(0) = ? [pid 6621] <... futex resumed>) = ? [pid 6621] +++ exited with 0 +++ [pid 6620] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6620, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6626 attached , child_tidptr=0x55556c203690) = 6626 [pid 6626] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6626] setpgid(0, 0) = 0 [pid 6626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6626] write(3, "1000", 4 [pid 6623] <... munmap resumed>) = 0 [pid 6626] <... write resumed>) = 4 [pid 6626] close(3 [pid 6623] openat(AT_FDCWD, "/dev/loop0", O_RDWRexecuting program [pid 6626] <... close resumed>) = 0 [pid 6623] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6626] write(1, "executing program\n", 18) = 18 [pid 6626] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6623] close(3 [pid 6626] <... futex resumed>) = 0 [pid 6626] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6626] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6626] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6626] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6626] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6626] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6627 attached [pid 6627] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6626] <... clone3 resumed> => {parent_tid=[6627]}, 88) = 6627 [pid 6627] <... rseq resumed>) = 0 [pid 6626] rt_sigprocmask(SIG_SETMASK, [], [pid 6627] set_robust_list(0x7fb72497a9a0, 24 [pid 6626] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6627] <... set_robust_list resumed>) = 0 [pid 6626] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] rt_sigprocmask(SIG_SETMASK, [], [pid 6626] <... futex resumed>) = 0 [pid 6627] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6626] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6627] memfd_create("syzkaller", 0) = 3 [pid 6627] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6625] <... write resumed>) = 16777216 [pid 6625] munmap(0x7fb71c400000, 138412032) = 0 [pid 6625] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6625] close(3 [pid 6627] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6623] <... close resumed>) = 0 [pid 6623] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6622] <... futex resumed>) = 0 [pid 6622] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6622] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6623] <... futex resumed>) = 1 [pid 6623] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6623] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6622] <... futex resumed>) = 0 [pid 6622] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6622] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6623] <... futex resumed>) = 1 [pid 6623] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6623] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6622] <... futex resumed>) = 0 [pid 6622] exit_group(0) = ? [pid 6623] <... futex resumed>) = ? [pid 6623] +++ exited with 0 +++ [pid 6622] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6622, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6628 attached , child_tidptr=0x55556c203690) = 6628 [pid 6628] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6628] setpgid(0, 0) = 0 [pid 6628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6628] write(3, "1000", 4) = 4 [pid 6628] close(3) = 0 executing program [pid 6628] write(1, "executing program\n", 18) = 18 [pid 6628] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6628] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6628] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6628] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6628] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6628] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6629 attached [pid 6629] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6628] <... clone3 resumed> => {parent_tid=[6629]}, 88) = 6629 [pid 6629] <... rseq resumed>) = 0 [pid 6628] rt_sigprocmask(SIG_SETMASK, [], [pid 6629] set_robust_list(0x7fb72497a9a0, 24 [pid 6628] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6629] <... set_robust_list resumed>) = 0 [pid 6628] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6629] rt_sigprocmask(SIG_SETMASK, [], [pid 6628] <... futex resumed>) = 0 [pid 6629] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6628] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6629] memfd_create("syzkaller", 0) = 3 [pid 6629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6625] <... close resumed>) = 0 [pid 6625] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6624] <... futex resumed>) = 0 [pid 6625] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6624] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6624] <... futex resumed>) = 0 [pid 6625] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6624] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6625] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6625] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6624] <... futex resumed>) = 0 [pid 6625] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6624] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6624] <... futex resumed>) = 0 [pid 6625] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6624] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6625] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6625] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6624] <... futex resumed>) = 0 [pid 6625] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6624] exit_group(0 [pid 6625] <... futex resumed>) = ? [pid 6624] <... exit_group resumed>) = ? [pid 6625] +++ exited with 0 +++ [pid 6624] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6624, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6630 attached , child_tidptr=0x55556c203690) = 6630 [pid 6630] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6630] setpgid(0, 0) = 0 [pid 6630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6630] write(3, "1000", 4) = 4 [pid 6630] close(3executing program ) = 0 [pid 6630] write(1, "executing program\n", 18) = 18 [pid 6630] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6630] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6630] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6630] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6630] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6630] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6631 attached => {parent_tid=[6631]}, 88) = 6631 [pid 6630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6630] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6631] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6630] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6631] <... rseq resumed>) = 0 [pid 6631] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6631] memfd_create("syzkaller", 0) = 3 [pid 6631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6629] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6627] <... write resumed>) = 16777216 [pid 6627] munmap(0x7fb71c400000, 138412032 [pid 6631] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6627] <... munmap resumed>) = 0 [pid 6627] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6627] close(3 [pid 6629] <... write resumed>) = 16777216 [pid 6631] <... write resumed>) = 16777216 [pid 6629] munmap(0x7fb71c400000, 138412032 [pid 6631] munmap(0x7fb71c400000, 138412032 [pid 6629] <... munmap resumed>) = 0 [pid 6629] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6629] close(3 [pid 6627] <... close resumed>) = 0 [pid 6631] <... munmap resumed>) = 0 [pid 6631] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6631] close(3 [pid 6627] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6626] <... futex resumed>) = 0 [pid 6627] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6626] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6626] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6627] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6627] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6626] <... futex resumed>) = 0 [pid 6627] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6626] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] <... futex resumed>) = 0 [pid 6626] <... futex resumed>) = 1 [pid 6627] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6626] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6627] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6627] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6626] <... futex resumed>) = 0 [pid 6627] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6626] exit_group(0 [pid 6627] <... futex resumed>) = ? [pid 6626] <... exit_group resumed>) = ? [pid 6627] +++ exited with 0 +++ [pid 6626] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6626, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6632 ./strace-static-x86_64: Process 6632 attached [pid 6632] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6632] setpgid(0, 0) = 0 [pid 6632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6632] write(3, "1000", 4) = 4 [pid 6632] close(3) = 0 executing program [pid 6632] write(1, "executing program\n", 18) = 18 [pid 6632] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6632] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6632] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6632] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6632] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6632] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6633]}, 88) = 6633 [pid 6632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6632] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6632] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6633 attached [pid 6633] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6633] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6633] memfd_create("syzkaller", 0) = 3 [pid 6633] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6629] <... close resumed>) = 0 [pid 6629] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6628] <... futex resumed>) = 0 [pid 6629] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6629] <... futex resumed>) = 0 [pid 6628] <... futex resumed>) = 1 [pid 6629] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6628] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6629] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6629] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6628] <... futex resumed>) = 0 [pid 6629] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6629] <... futex resumed>) = 0 [pid 6628] <... futex resumed>) = 1 [pid 6628] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6629] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6629] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6628] <... futex resumed>) = 0 [pid 6629] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] exit_group(0) = ? [pid 6629] <... futex resumed>) = ? [pid 6629] +++ exited with 0 +++ [pid 6628] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6628, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 6631] <... close resumed>) = 0 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6631] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6631] <... futex resumed>) = 1 [pid 6630] <... futex resumed>) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6631] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6630] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6634 attached [pid 6631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6630] <... futex resumed>) = 0 [pid 6634] set_robust_list(0x55556c2036a0, 24 [pid 6631] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6630] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6634 [pid 6634] <... set_robust_list resumed>) = 0 [pid 6631] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6634] setpgid(0, 0) = 0 [pid 6634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6631] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] write(3, "1000", 4 [pid 6631] <... futex resumed>) = 1 [pid 6630] <... futex resumed>) = 0 [pid 6630] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] <... write resumed>) = 4 [pid 6631] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6630] <... futex resumed>) = 0 [pid 6631] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6630] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6634] close(3 [pid 6631] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] <... close resumed>) = 0 executing program [pid 6631] <... futex resumed>) = 1 [pid 6630] <... futex resumed>) = 0 [pid 6634] write(1, "executing program\n", 18) = 18 [pid 6631] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6630] exit_group(0 [pid 6634] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6631] <... futex resumed>) = ? [pid 6630] <... exit_group resumed>) = ? [pid 6631] +++ exited with 0 +++ [pid 6630] +++ exited with 0 +++ [pid 6634] <... futex resumed>) = 0 [pid 6634] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6630, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 6634] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6634] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6634] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6634] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6634] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6634] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6633] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6635 attached ./strace-static-x86_64: Process 6636 attached [pid 6635] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6634] <... clone3 resumed> => {parent_tid=[6635]}, 88) = 6635 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6636 [pid 6636] set_robust_list(0x55556c2036a0, 24 [pid 6635] <... rseq resumed>) = 0 [pid 6634] rt_sigprocmask(SIG_SETMASK, [], [pid 6636] <... set_robust_list resumed>) = 0 [pid 6635] set_robust_list(0x7fb72497a9a0, 24 [pid 6634] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6635] <... set_robust_list resumed>) = 0 [pid 6634] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] rt_sigprocmask(SIG_SETMASK, [], [pid 6634] <... futex resumed>) = 0 [pid 6636] <... prctl resumed>) = 0 [pid 6635] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6634] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6636] setpgid(0, 0 [pid 6635] memfd_create("syzkaller", 0 [pid 6636] <... setpgid resumed>) = 0 [pid 6636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6635] <... memfd_create resumed>) = 3 [pid 6636] <... openat resumed>) = 3 [pid 6635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6636] write(3, "1000", 4) = 4 [pid 6636] close(3) = 0 executing program [pid 6636] write(1, "executing program\n", 18) = 18 [pid 6636] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6636] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6636] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6636] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6636] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6636] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6637 attached => {parent_tid=[6637]}, 88) = 6637 [pid 6636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6636] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6636] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6637] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6637] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6637] memfd_create("syzkaller", 0) = 3 [pid 6637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6635] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6633] <... write resumed>) = 16777216 [pid 6633] munmap(0x7fb71c400000, 138412032 [pid 6637] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6633] <... munmap resumed>) = 0 [pid 6633] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6633] close(3 [pid 6635] <... write resumed>) = 16777216 [pid 6635] munmap(0x7fb71c400000, 138412032 [pid 6633] <... close resumed>) = 0 [pid 6633] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6633] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6632] <... futex resumed>) = 0 [pid 6633] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6632] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6633] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6633] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6632] <... futex resumed>) = 0 [pid 6632] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6632] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6633] <... futex resumed>) = 1 [pid 6635] <... munmap resumed>) = 0 [pid 6635] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6635] close(3 [pid 6633] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6637] <... write resumed>) = 16777216 [pid 6633] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6637] munmap(0x7fb71c400000, 138412032 [pid 6633] <... futex resumed>) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6632] exit_group(0) = ? [pid 6633] +++ exited with 0 +++ [pid 6632] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6632, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6638 attached [pid 6638] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6638 [pid 6638] <... set_robust_list resumed>) = 0 [pid 6637] <... munmap resumed>) = 0 [pid 6638] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6637] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6638] <... prctl resumed>) = 0 [pid 6637] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6638] setpgid(0, 0) = 0 [pid 6637] close(3 [pid 6638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6638] write(3, "1000", 4) = 4 [pid 6638] close(3) = 0 executing program [pid 6638] write(1, "executing program\n", 18) = 18 [pid 6638] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6638] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6638] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6638] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6638] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6638] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6639 attached => {parent_tid=[6639]}, 88) = 6639 [pid 6638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6638] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6638] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6639] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6639] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6639] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6639] memfd_create("syzkaller", 0) = 3 [pid 6639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6635] <... close resumed>) = 0 [pid 6635] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6635] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6634] <... futex resumed>) = 0 [pid 6634] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] <... futex resumed>) = 0 [pid 6634] <... futex resumed>) = 1 [pid 6635] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6634] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6635] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6635] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6634] <... futex resumed>) = 0 [pid 6635] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6634] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] <... futex resumed>) = 0 [pid 6634] <... futex resumed>) = 1 [pid 6634] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6635] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6635] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6634] <... futex resumed>) = 0 [pid 6635] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6634] exit_group(0 [pid 6635] <... futex resumed>) = ? [pid 6634] <... exit_group resumed>) = ? [pid 6635] +++ exited with 0 +++ [pid 6634] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6634, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6640 attached , child_tidptr=0x55556c203690) = 6640 [pid 6640] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6640] setpgid(0, 0) = 0 [pid 6640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6640] write(3, "1000", 4) = 4 [pid 6640] close(3executing program ) = 0 [pid 6640] write(1, "executing program\n", 18) = 18 [pid 6640] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6640] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6640] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6640] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6640] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6640] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6641 attached => {parent_tid=[6641]}, 88) = 6641 [pid 6641] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6641] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6641] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6641] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6640] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6640] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6641] <... futex resumed>) = 0 [pid 6640] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6641] memfd_create("syzkaller", 0) = 3 [pid 6641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6637] <... close resumed>) = 0 [pid 6637] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6636] <... futex resumed>) = 0 [pid 6637] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6636] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6636] <... futex resumed>) = 0 [pid 6637] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6636] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6637] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6637] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6637] <... futex resumed>) = 0 [pid 6637] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6636] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6636] <... futex resumed>) = 0 [pid 6637] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6636] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6637] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6637] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6636] <... futex resumed>) = 0 [pid 6637] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6636] exit_group(0 [pid 6637] <... futex resumed>) = ? [pid 6636] <... exit_group resumed>) = ? [pid 6637] +++ exited with 0 +++ [pid 6636] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6636, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6642 ./strace-static-x86_64: Process 6642 attached [pid 6642] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6642] setpgid(0, 0) = 0 [pid 6642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6642] write(3, "1000", 4) = 4 [pid 6642] close(3) = 0 [pid 6642] write(1, "executing program\n", 18executing program ) = 18 [pid 6642] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6642] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6642] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6642] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6642] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6642] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6643]}, 88) = 6643 [pid 6642] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6642] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6642] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6643 attached [pid 6643] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6643] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6643] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6643] memfd_create("syzkaller", 0) = 3 [pid 6643] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6641] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6639] <... write resumed>) = 16777216 [pid 6639] munmap(0x7fb71c400000, 138412032) = 0 [pid 6639] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6639] close(3 [pid 6643] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6639] <... close resumed>) = 0 [pid 6639] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6639] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6638] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6639] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6638] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6639] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6638] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6639] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6638] <... futex resumed>) = 0 [pid 6639] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6638] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6639] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6638] exit_group(0 [pid 6639] ???( [pid 6638] <... exit_group resumed>) = ? [pid 6639] <... ??? resumed>) = ? [pid 6639] +++ exited with 0 +++ [pid 6638] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6638, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6644 attached [pid 6644] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6644 [pid 6644] <... set_robust_list resumed>) = 0 [pid 6644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6644] setpgid(0, 0) = 0 [pid 6644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6644] write(3, "1000", 4) = 4 executing program [pid 6644] close(3) = 0 [pid 6644] write(1, "executing program\n", 18) = 18 [pid 6644] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6644] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6644] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6644] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6644] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6644] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6641] <... write resumed>) = 16777216 [pid 6641] munmap(0x7fb71c400000, 138412032./strace-static-x86_64: Process 6645 attached [pid 6645] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6644] <... clone3 resumed> => {parent_tid=[6645]}, 88) = 6645 [pid 6645] <... rseq resumed>) = 0 [pid 6644] rt_sigprocmask(SIG_SETMASK, [], [pid 6645] set_robust_list(0x7fb72497a9a0, 24 [pid 6644] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6645] <... set_robust_list resumed>) = 0 [pid 6645] rt_sigprocmask(SIG_SETMASK, [], [pid 6644] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6645] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6645] memfd_create("syzkaller", 0 [pid 6644] <... futex resumed>) = 0 [pid 6645] <... memfd_create resumed>) = 3 [pid 6645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6644] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6645] <... mmap resumed>) = 0x7fb71c400000 [pid 6641] <... munmap resumed>) = 0 [pid 6643] <... write resumed>) = 16777216 [pid 6641] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6643] munmap(0x7fb71c400000, 138412032 [pid 6641] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6641] close(3 [pid 6643] <... munmap resumed>) = 0 [pid 6643] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6643] close(3 [pid 6645] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6641] <... close resumed>) = 0 [pid 6641] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6640] <... futex resumed>) = 0 [pid 6640] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6640] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6641] <... futex resumed>) = 1 [pid 6641] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6641] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6640] <... futex resumed>) = 0 [pid 6641] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6640] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6640] <... futex resumed>) = 0 [pid 6641] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6640] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6641] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6641] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6640] <... futex resumed>) = 0 [pid 6640] exit_group(0) = ? [pid 6641] +++ exited with 0 +++ [pid 6640] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6640, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6646 attached , child_tidptr=0x55556c203690) = 6646 [pid 6646] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6646] setpgid(0, 0) = 0 [pid 6646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6646] write(3, "1000", 4) = 4 [pid 6646] close(3) = 0 [pid 6646] write(1, "executing program\n", 18executing program ) = 18 [pid 6646] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6646] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6646] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6646] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6646] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6646] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6646] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6647 attached [pid 6647] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6646] <... clone3 resumed> => {parent_tid=[6647]}, 88) = 6647 [pid 6647] <... rseq resumed>) = 0 [pid 6646] rt_sigprocmask(SIG_SETMASK, [], [pid 6647] set_robust_list(0x7fb72497a9a0, 24 [pid 6646] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6647] <... set_robust_list resumed>) = 0 [pid 6646] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6647] rt_sigprocmask(SIG_SETMASK, [], [pid 6646] <... futex resumed>) = 0 [pid 6647] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6646] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6647] memfd_create("syzkaller", 0) = 3 [pid 6647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6643] <... close resumed>) = 0 [pid 6643] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6643] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] <... futex resumed>) = 0 [pid 6642] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6643] <... futex resumed>) = 0 [pid 6642] <... futex resumed>) = 1 [pid 6643] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6642] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6643] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6643] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6643] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6643] <... futex resumed>) = 0 [pid 6642] <... futex resumed>) = 1 [pid 6643] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6642] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6643] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6643] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6642] <... futex resumed>) = 0 [pid 6643] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] exit_group(0 [pid 6643] <... futex resumed>) = ? [pid 6642] <... exit_group resumed>) = ? [pid 6643] +++ exited with 0 +++ [pid 6642] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6642, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6648 attached , child_tidptr=0x55556c203690) = 6648 [pid 6648] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6648] setpgid(0, 0) = 0 [pid 6648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6648] write(3, "1000", 4) = 4 [pid 6648] close(3) = 0 executing program [pid 6648] write(1, "executing program\n", 18) = 18 [pid 6648] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6648] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6648] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6648] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6648] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6648] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6649 attached [pid 6649] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6648] <... clone3 resumed> => {parent_tid=[6649]}, 88) = 6649 [pid 6645] <... write resumed>) = 16777216 [pid 6649] <... rseq resumed>) = 0 [pid 6648] rt_sigprocmask(SIG_SETMASK, [], [pid 6649] set_robust_list(0x7fb72497a9a0, 24 [pid 6648] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6645] munmap(0x7fb71c400000, 138412032 [pid 6649] <... set_robust_list resumed>) = 0 [pid 6648] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6648] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6649] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6649] memfd_create("syzkaller", 0) = 3 [pid 6649] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6645] <... munmap resumed>) = 0 [pid 6645] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6645] close(3 [pid 6647] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6645] <... close resumed>) = 0 [pid 6645] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6645] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6644] <... futex resumed>) = 0 [pid 6644] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6645] <... futex resumed>) = 0 [pid 6644] <... futex resumed>) = 1 [pid 6645] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6645] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6645] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6644] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6649] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6644] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6645] <... futex resumed>) = 0 [pid 6644] <... futex resumed>) = 1 [pid 6645] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6645] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6645] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6644] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6644] exit_group(0 [pid 6645] <... futex resumed>) = ? [pid 6645] +++ exited with 0 +++ [pid 6644] <... exit_group resumed>) = ? [pid 6644] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6644, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6650 attached , child_tidptr=0x55556c203690) = 6650 [pid 6650] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6650] setpgid(0, 0) = 0 [pid 6650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6650] write(3, "1000", 4) = 4 [pid 6650] close(3) = 0 [pid 6650] write(1, "executing program\n", 18) = 18 [pid 6650] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6650] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6650] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6650] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6650] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6650] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6651 attached => {parent_tid=[6651]}, 88) = 6651 [pid 6650] rt_sigprocmask(SIG_SETMASK, [], [pid 6651] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6650] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6650] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6651] <... rseq resumed>) = 0 [pid 6651] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6651] rt_sigprocmask(SIG_SETMASK, [], [pid 6650] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6651] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6651] memfd_create("syzkaller", 0) = 3 [pid 6651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6647] <... write resumed>) = 16777216 [pid 6647] munmap(0x7fb71c400000, 138412032) = 0 [pid 6647] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6647] close(3 [pid 6649] <... write resumed>) = 16777216 [pid 6649] munmap(0x7fb71c400000, 138412032 [pid 6651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6649] <... munmap resumed>) = 0 [pid 6649] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6649] close(3) = 0 [pid 6649] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6648] <... futex resumed>) = 0 [pid 6648] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6648] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6649] <... futex resumed>) = 1 [pid 6649] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6649] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6648] <... futex resumed>) = 0 [pid 6649] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6648] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6649] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6648] <... futex resumed>) = 0 [pid 6649] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6648] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6649] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6648] <... futex resumed>) = 0 [pid 6648] exit_group(0 [pid 6649] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6648] <... exit_group resumed>) = ? [pid 6649] <... futex resumed>) = ? [pid 6649] +++ exited with 0 +++ [pid 6647] <... close resumed>) = 0 [pid 6648] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6648, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6647] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6647] <... futex resumed>) = 1 [pid 6646] <... futex resumed>) = 0 [pid 6647] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6646] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6647] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6646] <... futex resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6647] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6646] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6647] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6647] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6652 attached ) = 1 [pid 6646] <... futex resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6652 [pid 6647] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6646] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6647] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6646] <... futex resumed>) = 0 [pid 6647] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6646] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6647] <... futex resumed>) = 0 [pid 6646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6646] exit_group(0) = ? [pid 6647] +++ exited with 0 +++ [pid 6652] set_robust_list(0x55556c2036a0, 24 [pid 6646] +++ exited with 0 +++ [pid 6652] <... set_robust_list resumed>) = 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6646, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 6652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6652] setpgid(0, 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6652] <... setpgid resumed>) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6653 attached [pid 6652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6653] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6653 [pid 6653] <... set_robust_list resumed>) = 0 [pid 6652] <... openat resumed>) = 3 [pid 6653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6652] write(3, "1000", 4 [pid 6653] <... prctl resumed>) = 0 [pid 6652] <... write resumed>) = 4 [pid 6653] setpgid(0, 0 [pid 6652] close(3 [pid 6653] <... setpgid resumed>) = 0 [pid 6653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6652] <... close resumed>) = 0 executing program [pid 6652] write(1, "executing program\n", 18) = 18 [pid 6653] <... openat resumed>) = 3 [pid 6652] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6652] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6652] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6653] write(3, "1000", 4 [pid 6652] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6653] <... write resumed>) = 4 [pid 6652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6653] close(3 [pid 6652] <... mmap resumed>) = 0x7fb72495a000 [pid 6653] <... close resumed>) = 0 [pid 6652] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6652] rt_sigprocmask(SIG_BLOCK, ~[], executing program [pid 6653] write(1, "executing program\n", 18 [pid 6652] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6653] <... write resumed>) = 18 [pid 6653] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6654 attached [pid 6653] <... futex resumed>) = 0 [pid 6654] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6653] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6652] <... clone3 resumed> => {parent_tid=[6654]}, 88) = 6654 [pid 6654] <... rseq resumed>) = 0 [pid 6653] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6652] rt_sigprocmask(SIG_SETMASK, [], [pid 6654] set_robust_list(0x7fb72497a9a0, 24 [pid 6652] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6654] <... set_robust_list resumed>) = 0 [pid 6653] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6652] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] rt_sigprocmask(SIG_SETMASK, [], [pid 6653] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6652] <... futex resumed>) = 0 [pid 6654] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6652] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6654] memfd_create("syzkaller", 0) = 3 [pid 6653] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6654] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6653] <... mprotect resumed>) = 0 [pid 6654] <... mmap resumed>) = 0x7fb71c400000 [pid 6653] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6653] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6655 attached => {parent_tid=[6655]}, 88) = 6655 [pid 6653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6653] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6653] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6655] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6655] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6655] memfd_create("syzkaller", 0) = 3 [pid 6655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6651] <... write resumed>) = 16777216 [pid 6651] munmap(0x7fb71c400000, 138412032) = 0 [pid 6654] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6651] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6651] close(3 [pid 6655] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6651] <... close resumed>) = 0 [pid 6651] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6650] <... futex resumed>) = 0 [pid 6651] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6650] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6651] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6650] <... futex resumed>) = 0 [pid 6651] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6651] <... futex resumed>) = 0 [pid 6650] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6651] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6650] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6651] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6650] <... futex resumed>) = 0 [pid 6651] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6651] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6651] <... futex resumed>) = 0 [pid 6651] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6650] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6650] exit_group(0 [pid 6651] <... futex resumed>) = ? [pid 6650] <... exit_group resumed>) = ? [pid 6651] +++ exited with 0 +++ [pid 6650] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6650, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6656 attached , child_tidptr=0x55556c203690) = 6656 [pid 6656] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6656] setpgid(0, 0) = 0 [pid 6656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6656] write(3, "1000", 4) = 4 executing program [pid 6656] close(3) = 0 [pid 6656] write(1, "executing program\n", 18) = 18 [pid 6656] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6656] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6656] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6656] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6656] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6656] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6657 attached => {parent_tid=[6657]}, 88) = 6657 [pid 6657] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6656] rt_sigprocmask(SIG_SETMASK, [], [pid 6657] <... rseq resumed>) = 0 [pid 6656] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6657] set_robust_list(0x7fb72497a9a0, 24 [pid 6656] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6657] <... set_robust_list resumed>) = 0 [pid 6656] <... futex resumed>) = 0 [pid 6657] rt_sigprocmask(SIG_SETMASK, [], [pid 6656] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6657] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6657] memfd_create("syzkaller", 0) = 3 [pid 6657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6654] <... write resumed>) = 16777216 [pid 6654] munmap(0x7fb71c400000, 138412032 [pid 6657] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6654] <... munmap resumed>) = 0 [pid 6655] <... write resumed>) = 16777216 [pid 6655] munmap(0x7fb71c400000, 138412032 [pid 6654] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6654] close(3 [pid 6655] <... munmap resumed>) = 0 [pid 6655] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6655] close(3 [pid 6654] <... close resumed>) = 0 [pid 6654] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6652] <... futex resumed>) = 0 [pid 6654] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6652] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6652] <... futex resumed>) = 0 [pid 6654] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6654] <... futex resumed>) = 0 [pid 6654] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6654] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6652] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6652] <... futex resumed>) = 0 [pid 6654] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6654] <... futex resumed>) = 0 [pid 6652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6654] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6652] exit_group(0 [pid 6654] <... futex resumed>) = ? [pid 6652] <... exit_group resumed>) = ? [pid 6654] +++ exited with 0 +++ [pid 6652] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6652, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6658 attached [pid 6658] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6658 [pid 6658] <... set_robust_list resumed>) = 0 [pid 6658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6658] setpgid(0, 0) = 0 [pid 6658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6658] write(3, "1000", 4) = 4 [pid 6658] close(3) = 0 executing program [pid 6658] write(1, "executing program\n", 18) = 18 [pid 6658] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6658] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6658] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6658] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6658] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6658] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6657] <... write resumed>) = 16777216 ./strace-static-x86_64: Process 6659 attached [pid 6658] <... clone3 resumed> => {parent_tid=[6659]}, 88) = 6659 [pid 6655] <... close resumed>) = 0 [pid 6658] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6658] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6658] <... futex resumed>) = 0 [pid 6657] munmap(0x7fb71c400000, 138412032 [pid 6655] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] <... rseq resumed>) = 0 [pid 6658] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6655] <... futex resumed>) = 1 [pid 6653] <... futex resumed>) = 0 [pid 6659] set_robust_list(0x7fb72497a9a0, 24 [pid 6655] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6653] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] <... set_robust_list resumed>) = 0 [pid 6653] <... futex resumed>) = 0 [pid 6659] rt_sigprocmask(SIG_SETMASK, [], [pid 6655] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6653] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6659] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6655] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6655] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] memfd_create("syzkaller", 0 [pid 6655] <... futex resumed>) = 1 [pid 6653] <... futex resumed>) = 0 [pid 6653] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6653] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6655] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6659] <... memfd_create resumed>) = 3 [pid 6655] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6655] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6655] <... futex resumed>) = 1 [pid 6653] <... futex resumed>) = 0 [pid 6655] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6653] exit_group(0 [pid 6659] <... mmap resumed>) = 0x7fb71c400000 [pid 6655] <... futex resumed>) = ? [pid 6653] <... exit_group resumed>) = ? [pid 6655] +++ exited with 0 +++ [pid 6653] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6653, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 6657] <... munmap resumed>) = 0 [pid 6657] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6657] close(3 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6660 ./strace-static-x86_64: Process 6660 attached [pid 6660] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6660] setpgid(0, 0executing program ) = 0 [pid 6660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6660] write(3, "1000", 4) = 4 [pid 6660] close(3) = 0 [pid 6660] write(1, "executing program\n", 18) = 18 [pid 6660] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6660] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6660] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6660] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6660] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6660] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6660] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6661 attached => {parent_tid=[6661]}, 88) = 6661 [pid 6660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6660] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6661] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6661] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6661] memfd_create("syzkaller", 0 [pid 6660] <... futex resumed>) = 0 [pid 6661] <... memfd_create resumed>) = 3 [pid 6660] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6659] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6661] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6657] <... close resumed>) = 0 [pid 6657] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6656] <... futex resumed>) = 0 [pid 6656] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6656] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6657] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6657] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6656] <... futex resumed>) = 0 [pid 6656] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6656] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6657] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6657] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6656] <... futex resumed>) = 0 [pid 6657] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6656] exit_group(0) = ? [pid 6657] <... futex resumed>) = ? [pid 6657] +++ exited with 0 +++ [pid 6656] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6656, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6662 ./strace-static-x86_64: Process 6662 attached [pid 6662] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6662] setpgid(0, 0) = 0 [pid 6662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6662] write(3, "1000", 4) = 4 [pid 6662] close(3) = 0 executing program [pid 6662] write(1, "executing program\n", 18) = 18 [pid 6662] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6662] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6662] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6662] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6662] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6662] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6662] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6663 attached => {parent_tid=[6663]}, 88) = 6663 [pid 6662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6662] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6662] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6663] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6663] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6663] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6663] memfd_create("syzkaller", 0) = 3 [pid 6663] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6659] <... write resumed>) = 16777216 [pid 6659] munmap(0x7fb71c400000, 138412032) = 0 [pid 6659] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6659] close(3 [pid 6661] <... write resumed>) = 16777216 [pid 6661] munmap(0x7fb71c400000, 138412032) = 0 [pid 6661] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6661] close(3 [pid 6663] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6659] <... close resumed>) = 0 [pid 6659] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6659] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6658] <... futex resumed>) = 0 [pid 6658] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] <... futex resumed>) = 0 [pid 6658] <... futex resumed>) = 1 [pid 6659] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6658] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6659] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6659] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6658] <... futex resumed>) = 0 [pid 6659] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6658] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] <... futex resumed>) = 0 [pid 6658] <... futex resumed>) = 1 [pid 6659] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6658] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6659] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6659] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6659] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6658] <... futex resumed>) = 0 [pid 6658] exit_group(0 [pid 6659] <... futex resumed>) = ? [pid 6658] <... exit_group resumed>) = ? [pid 6659] +++ exited with 0 +++ [pid 6658] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6658, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6664 attached , child_tidptr=0x55556c203690) = 6664 [pid 6664] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6664] setpgid(0, 0) = 0 [pid 6664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6664] write(3, "1000", 4) = 4 [pid 6664] close(3) = 0 executing program [pid 6664] write(1, "executing program\n", 18) = 18 [pid 6664] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6664] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6664] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6664] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6664] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6664] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6665]}, 88) = 6665 [pid 6664] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6664] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6664] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6665 attached [pid 6665] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6665] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6665] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6665] memfd_create("syzkaller", 0) = 3 [pid 6665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6661] <... close resumed>) = 0 [pid 6661] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6660] <... futex resumed>) = 0 [pid 6661] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6660] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6661] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6660] <... futex resumed>) = 0 [pid 6661] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6660] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6661] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6661] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6660] <... futex resumed>) = 0 [pid 6661] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6660] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6661] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6660] <... futex resumed>) = 0 [pid 6661] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6660] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6661] <... futex resumed>) = 0 [pid 6660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6661] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6660] exit_group(0 [pid 6661] <... futex resumed>) = ? [pid 6660] <... exit_group resumed>) = ? [pid 6661] +++ exited with 0 +++ [pid 6660] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6660, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6666 ./strace-static-x86_64: Process 6666 attached [pid 6666] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6666] setpgid(0, 0) = 0 [pid 6666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6666] write(3, "1000", 4) = 4 [pid 6666] close(3) = 0 [pid 6666] write(1, "executing program\n", 18executing program ) = 18 [pid 6666] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6666] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6666] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6666] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6666] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6666] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6663] <... write resumed>) = 16777216 [pid 6666] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6666] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6667]}, 88) = 6667 [pid 6666] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6666] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6666] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6663] munmap(0x7fb71c400000, 138412032./strace-static-x86_64: Process 6667 attached [pid 6667] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6667] set_robust_list(0x7fb72497a9a0, 24 [pid 6663] <... munmap resumed>) = 0 [pid 6667] <... set_robust_list resumed>) = 0 [pid 6665] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6663] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6667] rt_sigprocmask(SIG_SETMASK, [], [pid 6663] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6667] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6667] memfd_create("syzkaller", 0) = 3 [pid 6663] close(3 [pid 6667] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6667] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6663] <... close resumed>) = 0 [pid 6663] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6662] <... futex resumed>) = 0 [pid 6663] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6662] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6663] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6662] <... futex resumed>) = 0 [pid 6662] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6663] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6663] <... futex resumed>) = 0 [pid 6662] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6662] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6663] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6663] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6662] <... futex resumed>) = 0 [pid 6663] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6662] exit_group(0 [pid 6663] <... futex resumed>) = ? [pid 6662] <... exit_group resumed>) = ? [pid 6663] +++ exited with 0 +++ [pid 6662] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6662, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6665] <... write resumed>) = 16777216 [pid 6665] munmap(0x7fb71c400000, 138412032 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6668 attached , child_tidptr=0x55556c203690) = 6668 [pid 6668] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6668] setpgid(0, 0) = 0 [pid 6668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6668] write(3, "1000", 4) = 4 [pid 6668] close(3) = 0 executing program [pid 6668] write(1, "executing program\n", 18) = 18 [pid 6668] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6668] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6668] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6668] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6668] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6668] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6669 attached [pid 6669] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6668] <... clone3 resumed> => {parent_tid=[6669]}, 88) = 6669 [pid 6669] <... rseq resumed>) = 0 [pid 6668] rt_sigprocmask(SIG_SETMASK, [], [pid 6669] set_robust_list(0x7fb72497a9a0, 24 [pid 6668] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6665] <... munmap resumed>) = 0 [pid 6669] <... set_robust_list resumed>) = 0 [pid 6668] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] rt_sigprocmask(SIG_SETMASK, [], [pid 6668] <... futex resumed>) = 0 [pid 6669] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6668] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6665] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6669] memfd_create("syzkaller", 0 [pid 6665] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6665] close(3 [pid 6669] <... memfd_create resumed>) = 3 [pid 6669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6665] <... close resumed>) = 0 [pid 6669] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6665] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6664] <... futex resumed>) = 0 [pid 6665] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6664] <... futex resumed>) = 0 [pid 6665] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6664] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6665] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6665] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6664] <... futex resumed>) = 0 [pid 6665] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6664] <... futex resumed>) = 0 [pid 6664] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6665] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6665] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6664] <... futex resumed>) = 0 [pid 6665] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] exit_group(0 [pid 6665] <... futex resumed>) = ? [pid 6664] <... exit_group resumed>) = ? [pid 6665] +++ exited with 0 +++ [pid 6664] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6664, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6667] <... write resumed>) = 16777216 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6667] munmap(0x7fb71c400000, 138412032 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6670 attached [pid 6670] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6670 [pid 6670] <... prctl resumed>) = 0 [pid 6670] setpgid(0, 0) = 0 [pid 6670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6670] write(3, "1000", 4 [pid 6667] <... munmap resumed>) = 0 [pid 6670] <... write resumed>) = 4 [pid 6670] close(3 [pid 6667] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6667] close(3 [pid 6670] <... close resumed>) = 0 [pid 6670] write(1, "executing program\n", 18executing program ) = 18 [pid 6670] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6670] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6670] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6670] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6670] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6670] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6671]}, 88) = 6671 [pid 6670] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6671 attached NULL, 8) = 0 [pid 6670] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6670] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6671] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6671] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6671] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6671] memfd_create("syzkaller", 0) = 3 [pid 6671] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6667] <... close resumed>) = 0 [pid 6669] <... write resumed>) = 16777216 [pid 6669] munmap(0x7fb71c400000, 138412032 [pid 6667] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6671] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6667] <... futex resumed>) = 1 [pid 6666] <... futex resumed>) = 0 [pid 6666] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6666] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6667] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6666] <... futex resumed>) = 0 [pid 6667] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6666] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6666] <... futex resumed>) = 0 [pid 6667] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6666] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6667] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6666] <... futex resumed>) = 0 [pid 6667] <... futex resumed>) = 1 [pid 6667] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6666] exit_group(0) = ? [pid 6667] <... futex resumed>) = ? [pid 6667] +++ exited with 0 +++ [pid 6666] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6666, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6672 ./strace-static-x86_64: Process 6672 attached [pid 6669] <... munmap resumed>) = 0 [pid 6672] set_robust_list(0x55556c2036a0, 24 [pid 6669] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6672] <... set_robust_list resumed>) = 0 [pid 6672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6669] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6669] close(3 [pid 6672] <... prctl resumed>) = 0 [pid 6672] setpgid(0, 0) = 0 [pid 6672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6672] write(3, "1000", 4) = 4 [pid 6672] close(3) = 0 executing program [pid 6672] write(1, "executing program\n", 18) = 18 [pid 6672] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6672] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6672] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6672] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6672] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6672] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6673 attached [pid 6673] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6672] <... clone3 resumed> => {parent_tid=[6673]}, 88) = 6673 [pid 6672] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6672] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6672] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6673] <... rseq resumed>) = 0 [pid 6673] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6673] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6673] memfd_create("syzkaller", 0) = 3 [pid 6673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6669] <... close resumed>) = 0 [pid 6669] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6669] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] <... futex resumed>) = 0 [pid 6668] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] <... futex resumed>) = 0 [pid 6668] <... futex resumed>) = 1 [pid 6669] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6668] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6669] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6668] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] <... futex resumed>) = 0 [pid 6668] <... futex resumed>) = 0 [pid 6669] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6669] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6669] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6668] exit_group(0 [pid 6669] <... futex resumed>) = ? [pid 6668] <... exit_group resumed>) = ? [pid 6669] +++ exited with 0 +++ [pid 6668] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6668, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6673] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6674 ./strace-static-x86_64: Process 6674 attached [pid 6674] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6674] setpgid(0, 0) = 0 [pid 6674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6674] write(3, "1000", 4) = 4 [pid 6674] close(3) = 0 [pid 6674] write(1, "executing program\n", 18executing program ) = 18 [pid 6674] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6674] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6674] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6674] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6674] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6674] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6675 attached => {parent_tid=[6675]}, 88) = 6675 [pid 6674] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6675] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6674] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6675] <... rseq resumed>) = 0 [pid 6674] <... futex resumed>) = 0 [pid 6671] <... write resumed>) = 16777216 [pid 6675] set_robust_list(0x7fb72497a9a0, 24 [pid 6674] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6675] <... set_robust_list resumed>) = 0 [pid 6671] munmap(0x7fb71c400000, 138412032 [pid 6675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6675] memfd_create("syzkaller", 0) = 3 [pid 6675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6671] <... munmap resumed>) = 0 [pid 6671] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6671] close(3 [pid 6673] <... write resumed>) = 16777216 [pid 6673] munmap(0x7fb71c400000, 138412032 [pid 6675] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6673] <... munmap resumed>) = 0 [pid 6673] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6673] close(3 [pid 6671] <... close resumed>) = 0 [pid 6671] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6671] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6670] <... futex resumed>) = 0 [pid 6670] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6671] <... futex resumed>) = 0 [pid 6670] <... futex resumed>) = 1 [pid 6671] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6670] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6671] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6671] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6671] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6670] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6671] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6670] <... futex resumed>) = 0 [pid 6670] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6671] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6671] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6671] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6670] exit_group(0 [pid 6671] <... futex resumed>) = ? [pid 6670] <... exit_group resumed>) = ? [pid 6671] +++ exited with 0 +++ [pid 6670] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6670, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6676 attached , child_tidptr=0x55556c203690) = 6676 [pid 6676] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6676] setpgid(0, 0) = 0 [pid 6676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6676] write(3, "1000", 4) = 4 [pid 6676] close(3) = 0 [pid 6676] write(1, "executing program\n", 18executing program ) = 18 [pid 6676] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6676] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6676] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6676] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6676] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6676] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6676] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6677 attached => {parent_tid=[6677]}, 88) = 6677 [pid 6676] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6676] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6676] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6677] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6677] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6677] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6677] memfd_create("syzkaller", 0) = 3 [pid 6677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6675] <... write resumed>) = 16777216 [pid 6675] munmap(0x7fb71c400000, 138412032) = 0 [pid 6675] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6675] close(3 [pid 6677] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6673] <... close resumed>) = 0 [pid 6673] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6672] <... futex resumed>) = 0 [pid 6673] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6672] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6673] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6672] <... futex resumed>) = 0 [pid 6673] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6672] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6673] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6673] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6672] <... futex resumed>) = 0 [pid 6673] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6672] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6673] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6672] <... futex resumed>) = 0 [pid 6673] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6672] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6673] <... futex resumed>) = 0 [pid 6672] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6673] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6672] exit_group(0 [pid 6673] <... futex resumed>) = ? [pid 6672] <... exit_group resumed>) = ? [pid 6673] +++ exited with 0 +++ [pid 6672] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6672, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6678 attached , child_tidptr=0x55556c203690) = 6678 [pid 6678] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6678] setpgid(0, 0) = 0 [pid 6678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6678] write(3, "1000", 4) = 4 [pid 6678] close(3) = 0 [pid 6678] write(1, "executing program\n", 18executing program ) = 18 [pid 6678] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6678] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6678] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6678] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6678] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6678] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6679 attached => {parent_tid=[6679]}, 88) = 6679 [pid 6679] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6678] rt_sigprocmask(SIG_SETMASK, [], [pid 6679] <... rseq resumed>) = 0 [pid 6678] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6679] set_robust_list(0x7fb72497a9a0, 24 [pid 6678] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6679] <... set_robust_list resumed>) = 0 [pid 6678] <... futex resumed>) = 0 [pid 6679] rt_sigprocmask(SIG_SETMASK, [], [pid 6678] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6679] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6679] memfd_create("syzkaller", 0) = 3 [pid 6679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6675] <... close resumed>) = 0 [pid 6675] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6675] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6674] <... futex resumed>) = 0 [pid 6674] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6675] <... futex resumed>) = 0 [pid 6674] <... futex resumed>) = 1 [pid 6675] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6674] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6675] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6674] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6675] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6674] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6675] <... futex resumed>) = 0 [pid 6674] <... futex resumed>) = 1 [pid 6675] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6674] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6675] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6675] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6674] <... futex resumed>) = 0 [pid 6675] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6674] exit_group(0 [pid 6675] <... futex resumed>) = ? [pid 6674] <... exit_group resumed>) = ? [pid 6675] +++ exited with 0 +++ [pid 6674] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6674, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6680 ./strace-static-x86_64: Process 6680 attached [pid 6680] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6680] setpgid(0, 0) = 0 [pid 6680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6680] write(3, "1000", 4) = 4 [pid 6680] close(3) = 0 [pid 6679] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6680] write(1, "executing program\n", 18) = 18 [pid 6680] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6680] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6680] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6680] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6680] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6680] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6681 attached => {parent_tid=[6681]}, 88) = 6681 [pid 6680] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6680] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6680] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6677] <... write resumed>) = 16777216 [pid 6681] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6677] munmap(0x7fb71c400000, 138412032 [pid 6681] <... rseq resumed>) = 0 [pid 6681] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6681] memfd_create("syzkaller", 0) = 3 [pid 6681] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6677] <... munmap resumed>) = 0 [pid 6677] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6677] close(3 [pid 6681] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6679] <... write resumed>) = 16777216 [pid 6679] munmap(0x7fb71c400000, 138412032) = 0 [pid 6679] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6679] close(3 [pid 6677] <... close resumed>) = 0 [pid 6677] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6676] <... futex resumed>) = 0 [pid 6677] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6676] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6676] <... futex resumed>) = 0 [pid 6677] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6676] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6677] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6677] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6676] <... futex resumed>) = 0 [pid 6677] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6676] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6676] <... futex resumed>) = 0 [pid 6677] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6676] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6677] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6677] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6676] <... futex resumed>) = 0 [pid 6677] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6676] exit_group(0 [pid 6677] <... futex resumed>) = ? [pid 6676] <... exit_group resumed>) = ? [pid 6677] +++ exited with 0 +++ [pid 6676] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6676, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6682 attached [pid 6682] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6682 [pid 6682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6682] setpgid(0, 0) = 0 [pid 6682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6682] write(3, "1000", 4) = 4 [pid 6682] close(3) = 0 executing program [pid 6682] write(1, "executing program\n", 18) = 18 [pid 6682] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6682] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6682] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6682] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6682] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6682] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6682] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6683 attached => {parent_tid=[6683]}, 88) = 6683 [pid 6683] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6682] rt_sigprocmask(SIG_SETMASK, [], [pid 6683] <... rseq resumed>) = 0 [pid 6682] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6683] set_robust_list(0x7fb72497a9a0, 24 [pid 6682] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6683] <... set_robust_list resumed>) = 0 [pid 6682] <... futex resumed>) = 0 [pid 6683] rt_sigprocmask(SIG_SETMASK, [], [pid 6682] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6683] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6683] memfd_create("syzkaller", 0) = 3 [pid 6683] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6679] <... close resumed>) = 0 [pid 6679] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6678] <... futex resumed>) = 0 [pid 6679] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6678] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6679] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6678] <... futex resumed>) = 0 [pid 6679] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6678] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6679] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6679] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6678] <... futex resumed>) = 0 [pid 6679] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6678] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6679] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6678] <... futex resumed>) = 0 [pid 6679] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6678] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6679] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6679] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6678] <... futex resumed>) = 0 [pid 6679] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6678] exit_group(0 [pid 6679] <... futex resumed>) = ? [pid 6678] <... exit_group resumed>) = ? [pid 6679] +++ exited with 0 +++ [pid 6678] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6678, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6684 attached [pid 6684] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6684] setpgid(0, 0) = 0 [pid 6684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6684] write(3, "1000", 4) = 4 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6684 [pid 6684] close(3) = 0 executing program [pid 6684] write(1, "executing program\n", 18) = 18 [pid 6684] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6684] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6684] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6684] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6684] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6684] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6684] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6685]}, 88) = 6685 [pid 6684] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6684] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6684] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6685 attached [pid 6685] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6685] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6685] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6685] memfd_create("syzkaller", 0) = 3 [pid 6685] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6683] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6681] <... write resumed>) = 16777216 [pid 6681] munmap(0x7fb71c400000, 138412032) = 0 [pid 6681] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6681] close(3 [pid 6685] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6681] <... close resumed>) = 0 [pid 6681] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6681] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6680] <... futex resumed>) = 0 [pid 6680] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6681] <... futex resumed>) = 0 [pid 6680] <... futex resumed>) = 1 [pid 6681] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6680] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6681] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6681] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6681] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6680] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6680] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6681] <... futex resumed>) = 0 [pid 6680] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6681] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6681] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6681] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6680] <... futex resumed>) = 0 [pid 6680] exit_group(0 [pid 6681] <... futex resumed>) = ? [pid 6680] <... exit_group resumed>) = ? [pid 6681] +++ exited with 0 +++ [pid 6680] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6680, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6686 ./strace-static-x86_64: Process 6686 attached [pid 6686] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6686] setpgid(0, 0) = 0 [pid 6686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6686] write(3, "1000", 4) = 4 [pid 6686] close(3) = 0 executing program [pid 6686] write(1, "executing program\n", 18 [pid 6683] <... write resumed>) = 16777216 [pid 6686] <... write resumed>) = 18 [pid 6686] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6686] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6686] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6686] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6686] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6686] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6687 attached => {parent_tid=[6687]}, 88) = 6687 [pid 6683] munmap(0x7fb71c400000, 138412032 [pid 6687] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6686] rt_sigprocmask(SIG_SETMASK, [], [pid 6687] <... rseq resumed>) = 0 [pid 6686] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6686] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6687] set_robust_list(0x7fb72497a9a0, 24 [pid 6686] <... futex resumed>) = 0 [pid 6687] <... set_robust_list resumed>) = 0 [pid 6686] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6687] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6687] memfd_create("syzkaller", 0) = 3 [pid 6687] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6683] <... munmap resumed>) = 0 [pid 6683] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6683] close(3 [pid 6685] <... write resumed>) = 16777216 [pid 6685] munmap(0x7fb71c400000, 138412032) = 0 [pid 6685] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6685] close(3 [pid 6687] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6683] <... close resumed>) = 0 [pid 6683] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6682] <... futex resumed>) = 0 [pid 6682] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6682] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6683] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6683] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6683] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6682] <... futex resumed>) = 0 [pid 6682] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6683] <... futex resumed>) = 0 [pid 6682] <... futex resumed>) = 1 [pid 6682] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6683] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6683] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6682] <... futex resumed>) = 0 [pid 6683] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6682] exit_group(0 [pid 6683] <... futex resumed>) = ? [pid 6682] <... exit_group resumed>) = ? [pid 6683] +++ exited with 0 +++ [pid 6682] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6682, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6688 ./strace-static-x86_64: Process 6688 attached [pid 6688] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6688] setpgid(0, 0) = 0 [pid 6688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6688] write(3, "1000", 4) = 4 executing program [pid 6688] close(3) = 0 [pid 6688] write(1, "executing program\n", 18) = 18 [pid 6688] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6688] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6688] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6688] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6688] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6688] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6689 attached [pid 6689] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6688] <... clone3 resumed> => {parent_tid=[6689]}, 88) = 6689 [pid 6689] <... rseq resumed>) = 0 [pid 6688] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6688] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6688] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6689] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6689] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6689] memfd_create("syzkaller", 0) = 3 [pid 6689] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6685] <... close resumed>) = 0 [pid 6685] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6684] <... futex resumed>) = 0 [pid 6684] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6685] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6684] <... futex resumed>) = 0 [pid 6685] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6684] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6685] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6684] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6685] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6684] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6685] <... futex resumed>) = 0 [pid 6685] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6685] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6685] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6684] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6684] exit_group(0 [pid 6685] <... futex resumed>) = ? [pid 6684] <... exit_group resumed>) = ? [pid 6685] +++ exited with 0 +++ [pid 6684] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6684, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6690 attached , child_tidptr=0x55556c203690) = 6690 [pid 6690] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6690] setpgid(0, 0) = 0 [pid 6690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6690] write(3, "1000", 4) = 4 [pid 6690] close(3executing program ) = 0 [pid 6690] write(1, "executing program\n", 18) = 18 [pid 6690] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6690] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6690] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6690] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6690] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6690] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6690] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6691 attached => {parent_tid=[6691]}, 88) = 6691 [pid 6690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6690] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6690] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6691] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6691] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6691] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6691] memfd_create("syzkaller", 0) = 3 [pid 6691] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6687] <... write resumed>) = 16777216 [pid 6687] munmap(0x7fb71c400000, 138412032) = 0 [pid 6689] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6687] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6691] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6687] close(3) = 0 [pid 6687] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6686] <... futex resumed>) = 0 [pid 6686] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6687] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6686] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6687] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6687] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6686] <... futex resumed>) = 0 [pid 6686] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6686] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6687] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6687] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6686] <... futex resumed>) = 0 [pid 6686] exit_group(0) = ? [pid 6687] +++ exited with 0 +++ [pid 6686] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6686, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6692 ./strace-static-x86_64: Process 6692 attached [pid 6692] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6692] setpgid(0, 0) = 0 [pid 6692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6692] write(3, "1000", 4) = 4 [pid 6692] close(3executing program ) = 0 [pid 6692] write(1, "executing program\n", 18) = 18 [pid 6692] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6692] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6692] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6692] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6692] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6692] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6692] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6693 attached => {parent_tid=[6693]}, 88) = 6693 [pid 6692] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6692] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6693] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6692] <... futex resumed>) = 0 [pid 6693] <... rseq resumed>) = 0 [pid 6692] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6693] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6693] memfd_create("syzkaller", 0) = 3 [pid 6693] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6689] <... write resumed>) = 16777216 [pid 6689] munmap(0x7fb71c400000, 138412032) = 0 [pid 6689] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6689] close(3 [pid 6691] <... write resumed>) = 16777216 [pid 6691] munmap(0x7fb71c400000, 138412032 [pid 6693] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6691] <... munmap resumed>) = 0 [pid 6691] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6691] close(3 [pid 6689] <... close resumed>) = 0 [pid 6689] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6689] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6688] <... futex resumed>) = 0 [pid 6688] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6689] <... futex resumed>) = 0 [pid 6688] <... futex resumed>) = 1 [pid 6689] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6688] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6689] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6689] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6689] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6688] <... futex resumed>) = 0 [pid 6688] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6689] <... futex resumed>) = 0 [pid 6688] <... futex resumed>) = 1 [pid 6689] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6688] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6689] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6689] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6689] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6688] <... futex resumed>) = 0 [pid 6688] exit_group(0 [pid 6689] <... futex resumed>) = ? [pid 6688] <... exit_group resumed>) = ? [pid 6689] +++ exited with 0 +++ [pid 6688] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6688, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6694 ./strace-static-x86_64: Process 6694 attached [pid 6694] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6694] setpgid(0, 0) = 0 [pid 6694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6694] write(3, "1000", 4) = 4 [pid 6694] close(3executing program ) = 0 [pid 6694] write(1, "executing program\n", 18) = 18 [pid 6694] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6694] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6694] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6694] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6694] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6694] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6695]}, 88) = 6695 [pid 6694] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6694] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6694] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6695 attached [pid 6695] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6695] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6695] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6695] memfd_create("syzkaller", 0) = 3 [pid 6695] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6691] <... close resumed>) = 0 [pid 6691] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6690] <... futex resumed>) = 0 [pid 6690] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6691] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6690] <... futex resumed>) = 0 [pid 6690] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6691] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6691] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6690] <... futex resumed>) = 0 [pid 6691] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6690] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6691] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6690] <... futex resumed>) = 0 [pid 6691] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6690] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6691] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6691] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6690] <... futex resumed>) = 0 [pid 6691] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6690] exit_group(0) = ? [pid 6691] <... futex resumed>) = ? [pid 6691] +++ exited with 0 +++ [pid 6690] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6690, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6696 attached , child_tidptr=0x55556c203690) = 6696 [pid 6696] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6696] setpgid(0, 0) = 0 [pid 6696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6696] write(3, "1000", 4executing program ) = 4 [pid 6696] close(3) = 0 [pid 6696] write(1, "executing program\n", 18) = 18 [pid 6696] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6696] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6696] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6696] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6696] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6696] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6696] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6697]}, 88) = 6697 [pid 6696] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6696] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6696] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6697 attached [pid 6697] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6697] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6697] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6697] memfd_create("syzkaller", 0 [pid 6693] <... write resumed>) = 16777216 [pid 6697] <... memfd_create resumed>) = 3 [pid 6693] munmap(0x7fb71c400000, 138412032 [pid 6697] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6693] <... munmap resumed>) = 0 [pid 6695] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6693] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6693] close(3 [pid 6697] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6693] <... close resumed>) = 0 [pid 6693] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6692] <... futex resumed>) = 0 [pid 6693] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6692] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6693] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6692] <... futex resumed>) = 0 [pid 6693] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6692] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6693] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6693] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6692] <... futex resumed>) = 0 [pid 6693] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6692] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6693] <... futex resumed>) = 0 [pid 6692] <... futex resumed>) = 1 [pid 6693] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6692] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6693] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6693] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6692] <... futex resumed>) = 0 [pid 6693] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6692] exit_group(0 [pid 6693] <... futex resumed>) = ? [pid 6692] <... exit_group resumed>) = ? [pid 6693] +++ exited with 0 +++ [pid 6692] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6692, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6698 attached , child_tidptr=0x55556c203690) = 6698 [pid 6698] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6698] setpgid(0, 0) = 0 [pid 6698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6698] write(3, "1000", 4) = 4 [pid 6698] close(3executing program ) = 0 [pid 6698] write(1, "executing program\n", 18) = 18 [pid 6698] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6698] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6698] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6698] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6698] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6698] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6699 attached [pid 6699] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6698] <... clone3 resumed> => {parent_tid=[6699]}, 88) = 6699 [pid 6699] <... rseq resumed>) = 0 [pid 6698] rt_sigprocmask(SIG_SETMASK, [], [pid 6699] set_robust_list(0x7fb72497a9a0, 24 [pid 6698] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6699] <... set_robust_list resumed>) = 0 [pid 6698] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6699] rt_sigprocmask(SIG_SETMASK, [], [pid 6698] <... futex resumed>) = 0 [pid 6698] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6699] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6699] memfd_create("syzkaller", 0) = 3 [pid 6695] <... write resumed>) = 16777216 [pid 6699] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6695] munmap(0x7fb71c400000, 138412032) = 0 [pid 6695] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6695] close(3 [pid 6697] <... write resumed>) = 16777216 [pid 6697] munmap(0x7fb71c400000, 138412032 [pid 6699] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6697] <... munmap resumed>) = 0 [pid 6697] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6697] close(3 [pid 6695] <... close resumed>) = 0 [pid 6695] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6694] <... futex resumed>) = 0 [pid 6695] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6694] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6694] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6695] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6695] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6694] <... futex resumed>) = 0 [pid 6695] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6694] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6694] <... futex resumed>) = 0 [pid 6694] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6695] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6694] <... futex resumed>) = 0 [pid 6695] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6694] exit_group(0 [pid 6695] <... futex resumed>) = ? [pid 6694] <... exit_group resumed>) = ? [pid 6695] +++ exited with 0 +++ [pid 6694] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6694, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6700 [pid 6697] <... close resumed>) = 0 ./strace-static-x86_64: Process 6700 attached [pid 6697] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6696] <... futex resumed>) = 0 [pid 6700] set_robust_list(0x55556c2036a0, 24 [pid 6699] <... write resumed>) = 16777216 [pid 6697] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6696] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6700] <... set_robust_list resumed>) = 0 [pid 6699] munmap(0x7fb71c400000, 138412032 [pid 6697] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6700] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6697] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6696] <... futex resumed>) = 0 [pid 6697] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6696] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6700] <... prctl resumed>) = 0 [pid 6697] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6696] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6697] <... futex resumed>) = 0 [pid 6697] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6696] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6700] setpgid(0, 0 [pid 6696] <... futex resumed>) = 1 [pid 6700] <... setpgid resumed>) = 0 [pid 6697] <... futex resumed>) = 0 [pid 6696] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6697] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6697] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6700] <... openat resumed>) = 3 [pid 6697] <... futex resumed>) = 1 [pid 6696] <... futex resumed>) = 0 [pid 6696] exit_group(0) = ? [pid 6697] +++ exited with 0 +++ [pid 6700] write(3, "1000", 4) = 4 [pid 6700] close(3executing program ) = 0 [pid 6700] write(1, "executing program\n", 18) = 18 [pid 6700] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6696] +++ exited with 0 +++ [pid 6700] <... futex resumed>) = 0 [pid 6700] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6696, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6700] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6700] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6700] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6700] <... mprotect resumed>) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6700] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6699] <... munmap resumed>) = 0 [pid 6699] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6700] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6700] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6699] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6699] close(3./strace-static-x86_64: Process 6702 attached ./strace-static-x86_64: Process 6701 attached [pid 6702] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6701] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6701 [pid 6702] set_robust_list(0x7fb72497a9a0, 24 [pid 6701] <... set_robust_list resumed>) = 0 [pid 6702] <... set_robust_list resumed>) = 0 [pid 6702] rt_sigprocmask(SIG_SETMASK, [], [pid 6701] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6702] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6702] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6701] <... prctl resumed>) = 0 [pid 6701] setpgid(0, 0 [pid 6700] <... clone3 resumed> => {parent_tid=[6702]}, 88) = 6702 [pid 6701] <... setpgid resumed>) = 0 [pid 6700] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6700] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6702] <... futex resumed>) = 0 [pid 6700] <... futex resumed>) = 1 [pid 6700] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6702] memfd_create("syzkaller", 0) = 3 [pid 6701] <... openat resumed>) = 3 [pid 6702] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6701] write(3, "1000", 4) = 4 [pid 6701] close(3) = 0 executing program [pid 6701] write(1, "executing program\n", 18) = 18 [pid 6701] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6701] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6701] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6701] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6701] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6701] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6701] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6703 attached => {parent_tid=[6703]}, 88) = 6703 [pid 6701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6701] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6701] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6703] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6703] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6703] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6703] memfd_create("syzkaller", 0) = 3 [pid 6703] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6699] <... close resumed>) = 0 [pid 6702] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6699] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6698] <... futex resumed>) = 0 [pid 6699] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6698] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6699] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6698] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6699] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6698] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6699] <... futex resumed>) = 0 [pid 6698] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6699] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6698] <... futex resumed>) = 0 [pid 6703] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6699] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6698] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6699] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6698] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6699] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6698] exit_group(0 [pid 6699] <... futex resumed>) = ? [pid 6698] <... exit_group resumed>) = ? [pid 6699] +++ exited with 0 +++ [pid 6698] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6698, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=39 /* 0.39 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6704 attached , child_tidptr=0x55556c203690) = 6704 [pid 6704] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6704] setpgid(0, 0) = 0 [pid 6704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6704] write(3, "1000", 4) = 4 [pid 6704] close(3) = 0 executing program [pid 6704] write(1, "executing program\n", 18) = 18 [pid 6704] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6704] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6704] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6704] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6704] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6704] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6705 attached [pid 6705] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6704] <... clone3 resumed> => {parent_tid=[6705]}, 88) = 6705 [pid 6705] <... rseq resumed>) = 0 [pid 6704] rt_sigprocmask(SIG_SETMASK, [], [pid 6705] set_robust_list(0x7fb72497a9a0, 24 [pid 6704] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6705] <... set_robust_list resumed>) = 0 [pid 6704] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6705] rt_sigprocmask(SIG_SETMASK, [], [pid 6704] <... futex resumed>) = 0 [pid 6705] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6704] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6705] memfd_create("syzkaller", 0) = 3 [pid 6705] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6703] <... write resumed>) = 16777216 [pid 6703] munmap(0x7fb71c400000, 138412032 [pid 6702] <... write resumed>) = 16777216 [pid 6705] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6703] <... munmap resumed>) = 0 [pid 6703] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6702] munmap(0x7fb71c400000, 138412032 [pid 6703] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6703] close(3 [pid 6702] <... munmap resumed>) = 0 [pid 6702] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6702] close(3 [pid 6705] <... write resumed>) = 16777216 [pid 6705] munmap(0x7fb71c400000, 138412032) = 0 [pid 6705] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6705] close(3 [pid 6702] <... close resumed>) = 0 [pid 6702] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6700] <... futex resumed>) = 0 [pid 6700] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6700] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6702] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6702] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6700] <... futex resumed>) = 0 [pid 6702] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6700] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6702] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6700] <... futex resumed>) = 0 [pid 6700] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6702] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6702] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6700] <... futex resumed>) = 0 [pid 6702] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6700] exit_group(0 [pid 6702] <... futex resumed>) = ? [pid 6700] <... exit_group resumed>) = ? [pid 6702] +++ exited with 0 +++ [pid 6700] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6700, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6706 attached , child_tidptr=0x55556c203690) = 6706 [pid 6706] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6706] setpgid(0, 0 [pid 6703] <... close resumed>) = 0 [pid 6706] <... setpgid resumed>) = 0 [pid 6706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6703] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] <... openat resumed>) = 3 [pid 6706] write(3, "1000", 4 [pid 6701] <... futex resumed>) = 0 [pid 6706] <... write resumed>) = 4 [pid 6703] <... futex resumed>) = 1 [pid 6701] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] close(3 [pid 6703] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6701] <... futex resumed>) = 0 [pid 6706] <... close resumed>) = 0 [pid 6703] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6701] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6706] write(1, "executing program\n", 18executing program [pid 6703] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6706] <... write resumed>) = 18 [pid 6701] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6703] <... futex resumed>) = 0 [pid 6701] <... futex resumed>) = 0 [pid 6706] <... futex resumed>) = 0 [pid 6701] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6706] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6703] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6706] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6703] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6706] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6703] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6703] <... futex resumed>) = 1 [pid 6701] <... futex resumed>) = 0 [pid 6706] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6703] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6701] exit_group(0 [pid 6706] <... mmap resumed>) = 0x7fb72495a000 [pid 6703] <... futex resumed>) = ? [pid 6701] <... exit_group resumed>) = ? [pid 6706] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6703] +++ exited with 0 +++ [pid 6701] +++ exited with 0 +++ [pid 6706] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6701, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 6706] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6706] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6707 attached [pid 6707] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6706] <... clone3 resumed> => {parent_tid=[6707]}, 88) = 6707 [pid 6707] <... rseq resumed>) = 0 [pid 6706] rt_sigprocmask(SIG_SETMASK, [], [pid 6707] set_robust_list(0x7fb72497a9a0, 24 [pid 6706] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6707] <... set_robust_list resumed>) = 0 [pid 6706] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6707] rt_sigprocmask(SIG_SETMASK, [], [pid 6706] <... futex resumed>) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6707] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6706] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6707] memfd_create("syzkaller", 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6708 attached , child_tidptr=0x55556c203690) = 6708 [pid 6707] <... memfd_create resumed>) = 3 [pid 6707] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6708] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6708] setpgid(0, 0) = 0 [pid 6708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6708] write(3, "1000", 4) = 4 [pid 6708] close(3) = 0 executing program [pid 6708] write(1, "executing program\n", 18) = 18 [pid 6708] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6708] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6708] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6708] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6708] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6708] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6705] <... close resumed>) = 0 [pid 6708] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6709 attached [pid 6705] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6708] <... clone3 resumed> => {parent_tid=[6709]}, 88) = 6709 [pid 6704] <... futex resumed>) = 0 [pid 6709] <... rseq resumed>) = 0 [pid 6708] rt_sigprocmask(SIG_SETMASK, [], [pid 6705] <... futex resumed>) = 1 [pid 6704] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] set_robust_list(0x7fb72497a9a0, 24 [pid 6708] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6705] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6704] <... futex resumed>) = 0 [pid 6709] <... set_robust_list resumed>) = 0 [pid 6708] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6705] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6704] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6709] rt_sigprocmask(SIG_SETMASK, [], [pid 6708] <... futex resumed>) = 0 [pid 6705] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6704] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6709] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6708] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6705] <... futex resumed>) = 0 [pid 6704] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] memfd_create("syzkaller", 0) = 3 [pid 6705] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6704] <... futex resumed>) = 0 [pid 6709] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6704] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6705] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6705] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6704] <... futex resumed>) = 0 [pid 6705] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6704] exit_group(0) = ? [pid 6705] <... futex resumed>) = ? [pid 6705] +++ exited with 0 +++ [pid 6704] +++ exited with 0 +++ [pid 6707] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6704, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6710 ./strace-static-x86_64: Process 6710 attached [pid 6710] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6710] setpgid(0, 0) = 0 [pid 6710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6710] write(3, "1000", 4executing program ) = 4 [pid 6710] close(3) = 0 [pid 6710] write(1, "executing program\n", 18) = 18 [pid 6710] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6710] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6710] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6710] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6710] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6710] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6710] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6711 attached => {parent_tid=[6711]}, 88) = 6711 [pid 6711] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6710] rt_sigprocmask(SIG_SETMASK, [], [pid 6711] <... rseq resumed>) = 0 [pid 6710] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6711] set_robust_list(0x7fb72497a9a0, 24 [pid 6710] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] <... set_robust_list resumed>) = 0 [pid 6710] <... futex resumed>) = 0 [pid 6711] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6710] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6711] memfd_create("syzkaller", 0) = 3 [pid 6711] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6709] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6711] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6707] <... write resumed>) = 16777216 [pid 6707] munmap(0x7fb71c400000, 138412032) = 0 [pid 6707] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6707] close(3 [pid 6709] <... write resumed>) = 16777216 [pid 6709] munmap(0x7fb71c400000, 138412032) = 0 [pid 6709] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6709] close(3 [pid 6707] <... close resumed>) = 0 [pid 6707] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6706] <... futex resumed>) = 0 [pid 6707] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6706] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6707] <... futex resumed>) = 0 [pid 6707] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6707] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6707] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6706] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6706] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6707] <... futex resumed>) = 0 [pid 6706] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6707] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6707] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6706] <... futex resumed>) = 0 [pid 6707] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6706] exit_group(0 [pid 6707] <... futex resumed>) = ? [pid 6706] <... exit_group resumed>) = ? [pid 6711] <... write resumed>) = 16777216 [pid 6707] +++ exited with 0 +++ [pid 6706] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6706, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 6711] munmap(0x7fb71c400000, 138412032 [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6712 attached [pid 6712] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6712 [pid 6712] <... set_robust_list resumed>) = 0 [pid 6712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6712] setpgid(0, 0) = 0 [pid 6712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6712] write(3, "1000", 4executing program ) = 4 [pid 6712] close(3) = 0 [pid 6712] write(1, "executing program\n", 18) = 18 [pid 6712] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6712] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6712] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6712] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6712] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6712] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6712] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6713 attached [pid 6713] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6711] <... munmap resumed>) = 0 [pid 6713] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6712] <... clone3 resumed> => {parent_tid=[6713]}, 88) = 6713 [pid 6712] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6712] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6712] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6711] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6713] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6711] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6713] memfd_create("syzkaller", 0 [pid 6711] close(3 [pid 6713] <... memfd_create resumed>) = 3 [pid 6713] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6709] <... close resumed>) = 0 [pid 6709] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6708] <... futex resumed>) = 0 [pid 6708] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6708] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6709] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6709] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6708] <... futex resumed>) = 0 [pid 6709] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6708] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6708] <... futex resumed>) = 0 [pid 6708] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6709] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6709] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6709] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6708] <... futex resumed>) = 0 [pid 6708] exit_group(0) = ? [pid 6709] <... futex resumed>) = ? [pid 6709] +++ exited with 0 +++ [pid 6708] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6708, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6714 ./strace-static-x86_64: Process 6714 attached [pid 6714] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 6714] setpgid(0, 0) = 0 [pid 6714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6714] write(3, "1000", 4) = 4 [pid 6714] close(3) = 0 [pid 6714] write(1, "executing program\n", 18) = 18 [pid 6714] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6714] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6714] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6714] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6714] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6714] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6714] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6715]}, 88) = 6715 [pid 6714] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6714] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6714] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6715 attached [pid 6715] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6715] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6715] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6715] memfd_create("syzkaller", 0) = 3 [pid 6715] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6713] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6711] <... close resumed>) = 0 [pid 6711] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6711] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6710] <... futex resumed>) = 0 [pid 6710] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] <... futex resumed>) = 0 [pid 6710] <... futex resumed>) = 1 [pid 6710] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6711] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6711] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6710] <... futex resumed>) = 0 [pid 6711] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6710] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6711] <... futex resumed>) = 0 [pid 6710] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6711] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6711] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6710] <... futex resumed>) = 0 [pid 6711] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6710] exit_group(0) = ? [pid 6711] <... futex resumed>) = ? [pid 6711] +++ exited with 0 +++ [pid 6710] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6710, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6716 ./strace-static-x86_64: Process 6716 attached [pid 6716] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6716] setpgid(0, 0) = 0 [pid 6716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6716] write(3, "1000", 4) = 4 [pid 6716] close(3) = 0 [pid 6716] write(1, "executing program\n", 18) = 18 [pid 6716] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6716] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6716] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6716] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6716] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6716] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6716] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6717 attached => {parent_tid=[6717]}, 88) = 6717 [pid 6716] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6716] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6716] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6717] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6717] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6717] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6717] memfd_create("syzkaller", 0) = 3 [pid 6717] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6715] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6713] <... write resumed>) = 16777216 [pid 6713] munmap(0x7fb71c400000, 138412032) = 0 [pid 6717] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6713] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6713] close(3 [pid 6715] <... write resumed>) = 16777216 [pid 6715] munmap(0x7fb71c400000, 138412032) = 0 [pid 6715] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6715] close(3 [pid 6713] <... close resumed>) = 0 [pid 6713] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6712] <... futex resumed>) = 0 [pid 6712] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6712] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6713] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6713] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6712] <... futex resumed>) = 0 [pid 6713] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6712] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6713] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6712] <... futex resumed>) = 0 [pid 6713] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6712] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6713] <... futex resumed>) = 0 [pid 6712] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6713] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6712] exit_group(0 [pid 6713] <... futex resumed>) = ? [pid 6712] <... exit_group resumed>) = ? [pid 6713] +++ exited with 0 +++ [pid 6712] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6712, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6718 ./strace-static-x86_64: Process 6718 attached [pid 6718] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6718] setpgid(0, 0) = 0 [pid 6718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6718] write(3, "1000", 4) = 4 [pid 6718] close(3) = 0 [pid 6718] write(1, "executing program\n", 18) = 18 [pid 6718] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6718] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6718] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6718] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6718] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6718] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6718] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6719 attached [pid 6719] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6718] <... clone3 resumed> => {parent_tid=[6719]}, 88) = 6719 [pid 6718] rt_sigprocmask(SIG_SETMASK, [], [pid 6719] <... rseq resumed>) = 0 [pid 6718] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6719] set_robust_list(0x7fb72497a9a0, 24 [pid 6718] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6719] <... set_robust_list resumed>) = 0 [pid 6719] rt_sigprocmask(SIG_SETMASK, [], [pid 6718] <... futex resumed>) = 0 [pid 6719] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6718] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6719] memfd_create("syzkaller", 0) = 3 [pid 6719] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6717] <... write resumed>) = 16777216 [pid 6715] <... close resumed>) = 0 [pid 6717] munmap(0x7fb71c400000, 138412032 [pid 6715] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6714] <... futex resumed>) = 0 [pid 6715] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6714] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6714] <... futex resumed>) = 0 [pid 6715] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6714] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6715] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6715] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6714] <... futex resumed>) = 0 [pid 6714] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6715] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6714] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6715] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6715] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6714] <... futex resumed>) = 0 [pid 6714] exit_group(0) = ? [pid 6715] +++ exited with 0 +++ [pid 6714] +++ exited with 0 +++ [pid 6717] <... munmap resumed>) = 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6714, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 6717] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6717] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] <... restart_syscall resumed>) = 0 [pid 6717] close(3 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6720 attached , child_tidptr=0x55556c203690) = 6720 [pid 6720] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6720] setpgid(0, 0) = 0 [pid 6720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6720] write(3, "1000", 4) = 4 [pid 6720] close(3) = 0 [pid 6720] write(1, "executing program\n", 18executing program ) = 18 [pid 6720] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6720] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6720] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6720] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6720] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6720] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6719] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6720] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6720] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6721 attached [pid 6721] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6720] <... clone3 resumed> => {parent_tid=[6721]}, 88) = 6721 [pid 6720] rt_sigprocmask(SIG_SETMASK, [], [pid 6721] set_robust_list(0x7fb72497a9a0, 24 [pid 6720] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6721] <... set_robust_list resumed>) = 0 [pid 6720] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6721] rt_sigprocmask(SIG_SETMASK, [], [pid 6720] <... futex resumed>) = 0 [pid 6721] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6720] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6721] memfd_create("syzkaller", 0) = 3 [pid 6721] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6717] <... close resumed>) = 0 [pid 6717] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6716] <... futex resumed>) = 0 [pid 6717] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6716] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6717] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6716] <... futex resumed>) = 0 [pid 6717] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6717] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6716] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6717] <... futex resumed>) = 0 [pid 6717] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6716] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6717] <... futex resumed>) = 0 [pid 6716] <... futex resumed>) = 1 [pid 6717] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6716] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6717] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6717] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6716] <... futex resumed>) = 0 [pid 6717] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6716] exit_group(0 [pid 6717] <... futex resumed>) = ? [pid 6716] <... exit_group resumed>) = ? [pid 6717] +++ exited with 0 +++ [pid 6716] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6716, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6722 ./strace-static-x86_64: Process 6722 attached [pid 6722] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6722] setpgid(0, 0) = 0 [pid 6722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6722] write(3, "1000", 4) = 4 executing program [pid 6722] close(3) = 0 [pid 6722] write(1, "executing program\n", 18) = 18 [pid 6722] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6722] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6722] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6722] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6722] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6722] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6722] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6723 attached [pid 6723] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6723] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6722] <... clone3 resumed> => {parent_tid=[6723]}, 88) = 6723 [pid 6722] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6722] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6722] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6723] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6723] memfd_create("syzkaller", 0) = 3 [pid 6721] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6723] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6719] <... write resumed>) = 16777216 [pid 6719] munmap(0x7fb71c400000, 138412032) = 0 [pid 6719] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6719] close(3 [pid 6723] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6721] <... write resumed>) = 16777216 [pid 6721] munmap(0x7fb71c400000, 138412032) = 0 [pid 6721] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6721] close(3 [pid 6719] <... close resumed>) = 0 [pid 6719] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6718] <... futex resumed>) = 0 [pid 6718] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6719] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6718] <... futex resumed>) = 0 [pid 6719] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6718] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] <... futex resumed>) = 0 [pid 6718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6719] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6718] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6719] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6719] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6718] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6719] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6718] <... futex resumed>) = 0 [pid 6719] <... futex resumed>) = 1 [pid 6718] exit_group(0 [pid 6719] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6718] <... exit_group resumed>) = ? [pid 6719] <... futex resumed>) = ? [pid 6719] +++ exited with 0 +++ [pid 6718] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6718, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWRexecuting program ) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6724 ./strace-static-x86_64: Process 6724 attached [pid 6724] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6724] setpgid(0, 0) = 0 [pid 6724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6724] write(3, "1000", 4) = 4 [pid 6724] close(3) = 0 [pid 6724] write(1, "executing program\n", 18) = 18 [pid 6724] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6724] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6724] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6724] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6724] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6724] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6724] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6725]}, 88) = 6725 [pid 6724] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6724] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6724] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6725 attached [pid 6725] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6725] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6725] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6725] memfd_create("syzkaller", 0) = 3 [pid 6725] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6721] <... close resumed>) = 0 [pid 6721] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6720] <... futex resumed>) = 0 [pid 6720] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6721] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6720] <... futex resumed>) = 0 [pid 6721] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6720] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6721] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6720] <... futex resumed>) = 0 [pid 6720] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6720] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6721] <... futex resumed>) = 1 [pid 6721] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6721] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6720] <... futex resumed>) = 0 [pid 6720] exit_group(0) = ? [pid 6721] <... futex resumed>) = ? [pid 6721] +++ exited with 0 +++ [pid 6720] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6720, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6726 attached , child_tidptr=0x55556c203690) = 6726 [pid 6726] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6723] <... write resumed>) = 16777216 [pid 6726] setpgid(0, 0 [pid 6723] munmap(0x7fb71c400000, 138412032 [pid 6726] <... setpgid resumed>) = 0 [pid 6726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6725] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6726] <... openat resumed>) = 3 [pid 6726] write(3, "1000", 4) = 4 [pid 6726] close(3 [pid 6723] <... munmap resumed>) = 0 [pid 6726] <... close resumed>) = 0 executing program [pid 6726] write(1, "executing program\n", 18) = 18 [pid 6723] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6726] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6726] <... futex resumed>) = 0 [pid 6726] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6726] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6723] close(3 [pid 6726] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6726] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6726] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6726] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6726] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6727 attached => {parent_tid=[6727]}, 88) = 6727 [pid 6726] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6727] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6727] set_robust_list(0x7fb72497a9a0, 24 [pid 6726] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6727] <... set_robust_list resumed>) = 0 [pid 6726] <... futex resumed>) = 0 [pid 6726] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6727] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6727] memfd_create("syzkaller", 0) = 3 [pid 6727] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6723] <... close resumed>) = 0 [pid 6723] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6722] <... futex resumed>) = 0 [pid 6722] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6722] <... futex resumed>) = 0 [pid 6723] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6722] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6722] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6722] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] <... futex resumed>) = 1 [pid 6722] <... futex resumed>) = 0 [pid 6723] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6722] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=48000000} [pid 6723] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6723] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6722] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6723] <... futex resumed>) = 0 [pid 6723] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6722] exit_group(0 [pid 6723] <... futex resumed>) = ? [pid 6722] <... exit_group resumed>) = ? [pid 6723] +++ exited with 0 +++ [pid 6722] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6722, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6728 attached [pid 6727] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6728 [pid 6728] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6728] setpgid(0, 0) = 0 [pid 6728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6728] write(3, "1000", 4) = 4 [pid 6728] close(3) = 0 [pid 6728] write(1, "executing program\n", 18executing program ) = 18 [pid 6728] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6728] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6728] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6728] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6728] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6728] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6728] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6729 attached => {parent_tid=[6729]}, 88) = 6729 [pid 6729] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6728] rt_sigprocmask(SIG_SETMASK, [], [pid 6729] set_robust_list(0x7fb72497a9a0, 24 [pid 6728] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6728] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6729] <... set_robust_list resumed>) = 0 [pid 6728] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6729] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6729] memfd_create("syzkaller", 0) = 3 [pid 6729] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6725] <... write resumed>) = 16777216 [pid 6725] munmap(0x7fb71c400000, 138412032) = 0 [pid 6725] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6725] close(3 [pid 6729] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6727] <... write resumed>) = 16777216 [pid 6727] munmap(0x7fb71c400000, 138412032) = 0 [pid 6727] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6727] close(3 [pid 6725] <... close resumed>) = 0 [pid 6725] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6725] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6724] <... futex resumed>) = 0 [pid 6724] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6725] <... futex resumed>) = 0 [pid 6724] <... futex resumed>) = 1 [pid 6725] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6724] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6725] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6725] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6724] <... futex resumed>) = 0 [pid 6724] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6725] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6724] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6725] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6725] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6724] <... futex resumed>) = 0 [pid 6724] exit_group(0) = ? [pid 6725] +++ exited with 0 +++ [pid 6724] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6724, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6730 attached , child_tidptr=0x55556c203690) = 6730 [pid 6730] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6730] setpgid(0, 0) = 0 [pid 6730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6730] write(3, "1000", 4) = 4 executing program [pid 6730] close(3) = 0 [pid 6730] write(1, "executing program\n", 18) = 18 [pid 6730] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6730] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6730] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6730] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6730] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6730] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6730] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6731 attached => {parent_tid=[6731]}, 88) = 6731 [pid 6731] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6730] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6730] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6731] <... rseq resumed>) = 0 [pid 6730] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6731] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6731] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6731] memfd_create("syzkaller", 0) = 3 [pid 6731] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6729] <... write resumed>) = 16777216 [pid 6729] munmap(0x7fb71c400000, 138412032 [pid 6727] <... close resumed>) = 0 [pid 6727] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6726] <... futex resumed>) = 0 [pid 6727] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6726] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6729] <... munmap resumed>) = 0 [pid 6727] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6726] <... futex resumed>) = 0 [pid 6729] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6727] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6726] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6727] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6729] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6727] <... futex resumed>) = 0 [pid 6726] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6729] close(3 [pid 6727] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6726] <... futex resumed>) = 0 [pid 6727] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6726] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6727] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6727] <... futex resumed>) = 0 [pid 6726] exit_group(0) = ? [pid 6727] +++ exited with 0 +++ [pid 6726] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6726, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6732 attached , child_tidptr=0x55556c203690) = 6732 [pid 6732] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6732] setpgid(0, 0) = 0 [pid 6732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6732] write(3, "1000", 4) = 4 [pid 6732] close(3) = 0 [pid 6732] write(1, "executing program\n", 18executing program ) = 18 [pid 6732] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6732] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6732] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6732] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6732] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6732] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6732] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6733 attached => {parent_tid=[6733]}, 88) = 6733 [pid 6733] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6732] rt_sigprocmask(SIG_SETMASK, [], [pid 6733] <... rseq resumed>) = 0 [pid 6732] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6733] set_robust_list(0x7fb72497a9a0, 24 [pid 6732] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6733] <... set_robust_list resumed>) = 0 [pid 6732] <... futex resumed>) = 0 [pid 6733] rt_sigprocmask(SIG_SETMASK, [], [pid 6732] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6733] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6733] memfd_create("syzkaller", 0) = 3 [pid 6733] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6731] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6733] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6729] <... close resumed>) = 0 [pid 6729] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6728] <... futex resumed>) = 0 [pid 6729] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6728] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6729] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6728] <... futex resumed>) = 0 [pid 6729] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6728] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6729] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6729] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6728] <... futex resumed>) = 0 [pid 6729] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6728] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6729] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6728] <... futex resumed>) = 0 [pid 6729] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6728] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6729] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6728] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6728] exit_group(0 [pid 6729] <... futex resumed>) = ? [pid 6728] <... exit_group resumed>) = ? [pid 6729] +++ exited with 0 +++ [pid 6728] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6728, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6734 attached , child_tidptr=0x55556c203690) = 6734 [pid 6734] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6734] setpgid(0, 0) = 0 [pid 6734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6734] write(3, "1000", 4) = 4 [pid 6734] close(3) = 0 [pid 6734] write(1, "executing program\n", 18executing program ) = 18 [pid 6734] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6734] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6734] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6734] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6734] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6734] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6734] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6735 attached [pid 6735] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6734] <... clone3 resumed> => {parent_tid=[6735]}, 88) = 6735 [pid 6735] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6734] rt_sigprocmask(SIG_SETMASK, [], [pid 6735] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6734] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6734] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6734] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6735] memfd_create("syzkaller", 0) = 3 [pid 6735] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6731] <... write resumed>) = 16777216 [pid 6733] <... write resumed>) = 16777216 [pid 6733] munmap(0x7fb71c400000, 138412032 [pid 6731] munmap(0x7fb71c400000, 138412032) = 0 [pid 6735] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6733] <... munmap resumed>) = 0 [pid 6733] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6731] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6733] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6731] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6733] close(3 [pid 6731] close(3 [pid 6733] <... close resumed>) = 0 [pid 6733] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6732] <... futex resumed>) = 0 [pid 6733] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6732] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6733] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6732] <... futex resumed>) = 0 [pid 6733] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6732] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6733] <... futex resumed>) = 0 [pid 6732] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6733] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6732] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6733] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6732] <... futex resumed>) = 0 [pid 6733] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6732] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6733] <... futex resumed>) = 0 [pid 6732] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6733] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6732] exit_group(0 [pid 6733] <... futex resumed>) = ? [pid 6732] <... exit_group resumed>) = ? [pid 6733] +++ exited with 0 +++ [pid 6732] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6732, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6736 attached [pid 6736] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6736 [pid 6736] <... set_robust_list resumed>) = 0 [pid 6736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6736] setpgid(0, 0) = 0 [pid 6736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6736] write(3, "1000", 4) = 4 executing program [pid 6736] close(3) = 0 [pid 6736] write(1, "executing program\n", 18) = 18 [pid 6736] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6736] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6736] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6736] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6736] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6735] <... write resumed>) = 16777216 [pid 6731] <... close resumed>) = 0 [pid 6736] <... mprotect resumed>) = 0 [pid 6735] munmap(0x7fb71c400000, 138412032 [pid 6736] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6731] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6730] <... futex resumed>) = 0 [pid 6736] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6731] <... futex resumed>) = 1 [pid 6730] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6737 attached ) = 0 [pid 6737] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6736] <... clone3 resumed> => {parent_tid=[6737]}, 88) = 6737 [pid 6731] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6730] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6737] <... rseq resumed>) = 0 [pid 6736] rt_sigprocmask(SIG_SETMASK, [], [pid 6731] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6737] set_robust_list(0x7fb72497a9a0, 24 [pid 6736] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6731] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6737] <... set_robust_list resumed>) = 0 [pid 6736] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] <... futex resumed>) = 1 [pid 6730] <... futex resumed>) = 0 [pid 6737] rt_sigprocmask(SIG_SETMASK, [], [pid 6736] <... futex resumed>) = 0 [pid 6731] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6730] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6737] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6736] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6730] <... futex resumed>) = 0 [pid 6737] memfd_create("syzkaller", 0 [pid 6731] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6730] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6737] <... memfd_create resumed>) = 3 [pid 6737] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6731] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6735] <... munmap resumed>) = 0 [pid 6735] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6730] <... futex resumed>) = 0 [pid 6730] exit_group(0) = ? [pid 6731] <... futex resumed>) = ? [pid 6735] close(3 [pid 6731] +++ exited with 0 +++ [pid 6730] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6730, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6738 attached [pid 6738] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6738 [pid 6738] <... set_robust_list resumed>) = 0 [pid 6738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6738] setpgid(0, 0) = 0 [pid 6738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6738] write(3, "1000", 4) = 4 [pid 6738] close(3) = 0 [pid 6738] write(1, "executing program\n", 18executing program ) = 18 [pid 6738] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6738] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6738] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6738] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6738] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6738] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6738] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6739 attached => {parent_tid=[6739]}, 88) = 6739 [pid 6739] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6738] rt_sigprocmask(SIG_SETMASK, [], [pid 6739] <... rseq resumed>) = 0 [pid 6738] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6739] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6738] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6738] <... futex resumed>) = 0 [pid 6739] memfd_create("syzkaller", 0 [pid 6738] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6739] <... memfd_create resumed>) = 3 [pid 6739] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6737] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6735] <... close resumed>) = 0 [pid 6735] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6734] <... futex resumed>) = 0 [pid 6735] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6734] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6735] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6734] <... futex resumed>) = 0 [pid 6735] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6734] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6735] <... futex resumed>) = 0 [pid 6734] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6735] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6734] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6735] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6734] <... futex resumed>) = 0 [pid 6735] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6734] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6735] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6735] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6734] <... futex resumed>) = 0 [pid 6734] exit_group(0) = ? [pid 6735] +++ exited with 0 +++ [pid 6734] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6734, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6740 attached , child_tidptr=0x55556c203690) = 6740 [pid 6740] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6740] setpgid(0, 0) = 0 [pid 6740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6740] write(3, "1000", 4) = 4 [pid 6740] close(3) = 0 executing program [pid 6740] write(1, "executing program\n", 18) = 18 [pid 6740] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6740] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6740] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6740] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6740] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6740] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6741]}, 88) = 6741 [pid 6740] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 6741 attached [pid 6740] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6740] <... futex resumed>) = 0 [pid 6741] <... rseq resumed>) = 0 [pid 6741] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6741] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6740] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6741] memfd_create("syzkaller", 0) = 3 [pid 6741] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6739] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6741] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6737] <... write resumed>) = 16777216 [pid 6737] munmap(0x7fb71c400000, 138412032) = 0 [pid 6737] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6737] close(3 [pid 6741] <... write resumed>) = 16777216 [pid 6741] munmap(0x7fb71c400000, 138412032) = 0 [pid 6741] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6741] close(3 [pid 6739] <... write resumed>) = 16777216 [pid 6739] munmap(0x7fb71c400000, 138412032) = 0 [pid 6739] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6739] close(3 [pid 6737] <... close resumed>) = 0 [pid 6737] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6736] <... futex resumed>) = 0 [pid 6737] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6736] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6736] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6737] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6737] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6737] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6736] <... futex resumed>) = 0 [pid 6737] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6736] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6737] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6736] <... futex resumed>) = 0 [pid 6737] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6736] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6737] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6737] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6736] <... futex resumed>) = 0 [pid 6736] exit_group(0) = ? [pid 6737] +++ exited with 0 +++ [pid 6736] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6736, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6742 ./strace-static-x86_64: Process 6742 attached [pid 6742] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6742] setpgid(0, 0) = 0 [pid 6742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6742] write(3, "1000", 4) = 4 executing program [pid 6742] close(3) = 0 [pid 6742] write(1, "executing program\n", 18) = 18 [pid 6742] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6742] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6742] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6742] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6742] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6742] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6742] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6743 attached [pid 6743] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6742] <... clone3 resumed> => {parent_tid=[6743]}, 88) = 6743 [pid 6743] <... rseq resumed>) = 0 [pid 6742] rt_sigprocmask(SIG_SETMASK, [], [pid 6743] set_robust_list(0x7fb72497a9a0, 24 [pid 6742] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6743] <... set_robust_list resumed>) = 0 [pid 6742] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] rt_sigprocmask(SIG_SETMASK, [], [pid 6742] <... futex resumed>) = 0 [pid 6743] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6742] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6743] memfd_create("syzkaller", 0) = 3 [pid 6743] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6741] <... close resumed>) = 0 [pid 6741] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] <... futex resumed>) = 0 [pid 6740] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] <... close resumed>) = 0 [pid 6741] <... futex resumed>) = 1 [pid 6740] <... futex resumed>) = 0 [pid 6739] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6741] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6741] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] <... futex resumed>) = 0 [pid 6741] <... futex resumed>) = 1 [pid 6740] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6740] <... futex resumed>) = 0 [pid 6741] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6740] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6741] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6740] <... futex resumed>) = 0 [pid 6740] exit_group(0) = ? [pid 6741] +++ exited with 0 +++ [pid 6739] <... futex resumed>) = 1 [pid 6738] <... futex resumed>) = 0 [pid 6739] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6738] <... futex resumed>) = 0 [pid 6739] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6738] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6740] +++ exited with 0 +++ [pid 6739] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6739] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6740, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 6739] <... futex resumed>) = 1 [pid 6738] <... futex resumed>) = 0 [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6739] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6738] <... futex resumed>) = 0 [pid 6739] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6738] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6739] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6739] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6738] <... futex resumed>) = 0 [pid 6739] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] exit_group(0) = ? [pid 6739] <... futex resumed>) = ? [pid 6739] +++ exited with 0 +++ [pid 6738] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6738, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 6744 attached ) = -1 EBUSY (Device or resource busy) [pid 6744] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6744 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6745 attached [pid 6744] <... set_robust_list resumed>) = 0 [pid 6744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6745 [pid 6744] <... prctl resumed>) = 0 [pid 6744] setpgid(0, 0 [pid 6745] set_robust_list(0x55556c2036a0, 24 [pid 6744] <... setpgid resumed>) = 0 [pid 6743] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6745] <... set_robust_list resumed>) = 0 [pid 6745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6745] <... prctl resumed>) = 0 [pid 6744] write(3, "1000", 4 [pid 6745] setpgid(0, 0 [pid 6744] <... write resumed>) = 4 [pid 6745] <... setpgid resumed>) = 0 [pid 6744] close(3 [pid 6745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6744] <... close resumed>) = 0 executing program [pid 6744] write(1, "executing program\n", 18) = 18 [pid 6745] <... openat resumed>) = 3 [pid 6744] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6744] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6745] write(3, "1000", 4 [pid 6744] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6745] <... write resumed>) = 4 [pid 6745] close(3 [pid 6744] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6745] <... close resumed>) = 0 [pid 6744] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0executing program [pid 6745] write(1, "executing program\n", 18 [pid 6744] <... mmap resumed>) = 0x7fb72495a000 [pid 6745] <... write resumed>) = 18 [pid 6745] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6744] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6745] <... futex resumed>) = 0 [pid 6744] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6745] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6744] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6745] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6744] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6746 attached [pid 6745] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6745] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6744] <... clone3 resumed> => {parent_tid=[6746]}, 88) = 6746 [pid 6746] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6745] <... mmap resumed>) = 0x7fb72495a000 [pid 6744] rt_sigprocmask(SIG_SETMASK, [], [pid 6746] <... rseq resumed>) = 0 [pid 6746] set_robust_list(0x7fb72497a9a0, 24 [pid 6745] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6744] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6746] <... set_robust_list resumed>) = 0 [pid 6745] <... mprotect resumed>) = 0 [pid 6746] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6744] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6746] memfd_create("syzkaller", 0 [pid 6745] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6744] <... futex resumed>) = 0 [pid 6746] <... memfd_create resumed>) = 3 [pid 6744] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6746] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6745] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6745] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6747]}, 88) = 6747 ./strace-static-x86_64: Process 6747 attached [pid 6745] rt_sigprocmask(SIG_SETMASK, [], [pid 6747] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6747] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6747] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6747] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6745] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6745] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6747] <... futex resumed>) = 0 [pid 6745] <... futex resumed>) = 1 [pid 6745] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6747] memfd_create("syzkaller", 0) = 3 [pid 6747] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6743] <... write resumed>) = 16777216 [pid 6746] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6743] munmap(0x7fb71c400000, 138412032 [pid 6747] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6743] <... munmap resumed>) = 0 [pid 6743] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6743] close(3) = 0 [pid 6743] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6742] <... futex resumed>) = 0 [pid 6743] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6742] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6743] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6742] <... futex resumed>) = 0 [pid 6743] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6742] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6743] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6742] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6743] <... futex resumed>) = 0 [pid 6742] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6742] <... futex resumed>) = 0 [pid 6743] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6742] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6743] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6742] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6743] <... futex resumed>) = 0 [pid 6742] exit_group(0) = ? [pid 6743] +++ exited with 0 +++ [pid 6742] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6742, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6748 ./strace-static-x86_64: Process 6748 attached [pid 6746] <... write resumed>) = 16777216 [pid 6748] set_robust_list(0x55556c2036a0, 24 [pid 6746] munmap(0x7fb71c400000, 138412032 [pid 6748] <... set_robust_list resumed>) = 0 [pid 6748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6748] setpgid(0, 0) = 0 [pid 6748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6748] write(3, "1000", 4) = 4 [pid 6748] close(3executing program ) = 0 [pid 6746] <... munmap resumed>) = 0 [pid 6748] write(1, "executing program\n", 18) = 18 [pid 6746] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6748] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6746] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6748] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6746] close(3 [pid 6748] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6748] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6748] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6748] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6748] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6749 attached => {parent_tid=[6749]}, 88) = 6749 [pid 6749] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6748] rt_sigprocmask(SIG_SETMASK, [], [pid 6749] <... rseq resumed>) = 0 [pid 6748] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6748] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6749] set_robust_list(0x7fb72497a9a0, 24 [pid 6748] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6749] <... set_robust_list resumed>) = 0 [pid 6749] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6749] memfd_create("syzkaller", 0) = 3 [pid 6749] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6747] <... write resumed>) = 16777216 [pid 6747] munmap(0x7fb71c400000, 138412032) = 0 [pid 6747] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6747] close(3 [pid 6749] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6746] <... close resumed>) = 0 [pid 6746] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6744] <... futex resumed>) = 0 [pid 6746] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6744] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6746] <... futex resumed>) = 0 [pid 6744] <... futex resumed>) = 1 [pid 6746] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6744] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6746] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6746] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6744] <... futex resumed>) = 0 [pid 6746] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6744] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6746] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6744] <... futex resumed>) = 0 [pid 6746] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6744] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6746] <... futex resumed>) = 0 [pid 6744] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6746] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6744] exit_group(0 [pid 6746] <... futex resumed>) = ? [pid 6744] <... exit_group resumed>) = ? [pid 6746] +++ exited with 0 +++ [pid 6744] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6744, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6750 attached , child_tidptr=0x55556c203690) = 6750 [pid 6750] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6750] setpgid(0, 0) = 0 [pid 6750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6750] write(3, "1000", 4) = 4 [pid 6750] close(3) = 0 executing program [pid 6750] write(1, "executing program\n", 18) = 18 [pid 6750] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6750] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6750] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6750] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6750] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6750] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6750] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6751 attached [pid 6751] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6750] <... clone3 resumed> => {parent_tid=[6751]}, 88) = 6751 [pid 6751] <... rseq resumed>) = 0 [pid 6751] set_robust_list(0x7fb72497a9a0, 24 [pid 6750] rt_sigprocmask(SIG_SETMASK, [], [pid 6751] <... set_robust_list resumed>) = 0 [pid 6750] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6751] rt_sigprocmask(SIG_SETMASK, [], [pid 6750] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6750] <... futex resumed>) = 0 [pid 6750] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6751] memfd_create("syzkaller", 0) = 3 [pid 6751] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6747] <... close resumed>) = 0 [pid 6747] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6747] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6745] <... futex resumed>) = 0 [pid 6745] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6747] <... futex resumed>) = 0 [pid 6745] <... futex resumed>) = 1 [pid 6747] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6747] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6745] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6745] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6745] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6747] <... futex resumed>) = 1 [pid 6745] <... futex resumed>) = 0 [pid 6747] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6745] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=37000000} [pid 6747] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6745] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6747] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6745] exit_group(0 [pid 6747] <... futex resumed>) = ? [pid 6745] <... exit_group resumed>) = ? [pid 6747] +++ exited with 0 +++ [pid 6745] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6745, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6752 ./strace-static-x86_64: Process 6752 attached [pid 6752] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6752] setpgid(0, 0) = 0 [pid 6752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6752] write(3, "1000", 4) = 4 [pid 6752] close(3) = 0 [pid 6752] write(1, "executing program\n", 18) = 18 [pid 6752] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6752] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6752] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6752] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6752] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6752] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6752] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6753 attached [pid 6753] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6752] <... clone3 resumed> => {parent_tid=[6753]}, 88) = 6753 [pid 6751] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6753] <... rseq resumed>) = 0 [pid 6752] rt_sigprocmask(SIG_SETMASK, [], [pid 6753] set_robust_list(0x7fb72497a9a0, 24 [pid 6752] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6753] <... set_robust_list resumed>) = 0 [pid 6752] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] rt_sigprocmask(SIG_SETMASK, [], [pid 6752] <... futex resumed>) = 0 [pid 6753] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6753] memfd_create("syzkaller", 0 [pid 6752] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6753] <... memfd_create resumed>) = 3 [pid 6753] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6749] <... write resumed>) = 16777216 [pid 6749] munmap(0x7fb71c400000, 138412032) = 0 [pid 6749] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6749] close(3 [pid 6753] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6751] <... write resumed>) = 16777216 [pid 6751] munmap(0x7fb71c400000, 138412032) = 0 [pid 6751] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6751] close(3 [pid 6749] <... close resumed>) = 0 [pid 6749] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6748] <... futex resumed>) = 0 [pid 6749] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6748] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6749] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6748] <... futex resumed>) = 0 [pid 6749] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6748] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6749] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6748] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6748] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6749] <... futex resumed>) = 0 [pid 6748] <... futex resumed>) = 1 [pid 6749] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6748] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6749] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6749] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6748] <... futex resumed>) = 0 [pid 6749] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6748] exit_group(0 [pid 6749] <... futex resumed>) = ? [pid 6748] <... exit_group resumed>) = ? [pid 6749] +++ exited with 0 +++ [pid 6748] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6748, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6754 attached , child_tidptr=0x55556c203690) = 6754 [pid 6753] <... write resumed>) = 16777216 [pid 6754] set_robust_list(0x55556c2036a0, 24 [pid 6753] munmap(0x7fb71c400000, 138412032 [pid 6754] <... set_robust_list resumed>) = 0 [pid 6754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6754] setpgid(0, 0) = 0 [pid 6754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6754] write(3, "1000", 4) = 4 [pid 6754] close(3) = 0 executing program [pid 6754] write(1, "executing program\n", 18) = 18 [pid 6754] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6754] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6754] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6754] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6754] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6754] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6754] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6755 attached [pid 6755] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6754] <... clone3 resumed> => {parent_tid=[6755]}, 88) = 6755 [pid 6755] <... rseq resumed>) = 0 [pid 6754] rt_sigprocmask(SIG_SETMASK, [], [pid 6755] set_robust_list(0x7fb72497a9a0, 24 [pid 6754] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6755] <... set_robust_list resumed>) = 0 [pid 6754] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] rt_sigprocmask(SIG_SETMASK, [], [pid 6754] <... futex resumed>) = 0 [pid 6755] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6754] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6755] memfd_create("syzkaller", 0) = 3 [pid 6755] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6753] <... munmap resumed>) = 0 [pid 6753] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6753] close(3 [pid 6755] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6751] <... close resumed>) = 0 [pid 6751] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6750] <... futex resumed>) = 0 [pid 6751] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6750] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6750] <... futex resumed>) = 0 [pid 6751] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6751] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6750] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6751] <... futex resumed>) = 0 [pid 6751] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6750] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6750] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] <... futex resumed>) = 0 [pid 6750] <... futex resumed>) = 1 [pid 6751] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6750] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6751] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6750] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6751] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6750] exit_group(0 [pid 6751] <... futex resumed>) = ? [pid 6750] <... exit_group resumed>) = ? [pid 6751] +++ exited with 0 +++ [pid 6750] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6750, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6756 attached , child_tidptr=0x55556c203690) = 6756 [pid 6756] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6756] setpgid(0, 0) = 0 [pid 6756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6756] write(3, "1000", 4) = 4 [pid 6756] close(3) = 0 executing program [pid 6756] write(1, "executing program\n", 18) = 18 [pid 6756] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6756] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6756] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6756] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6756] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6756] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6756] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6757 attached [pid 6757] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6756] <... clone3 resumed> => {parent_tid=[6757]}, 88) = 6757 [pid 6757] <... rseq resumed>) = 0 [pid 6756] rt_sigprocmask(SIG_SETMASK, [], [pid 6757] set_robust_list(0x7fb72497a9a0, 24 [pid 6756] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6757] <... set_robust_list resumed>) = 0 [pid 6756] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] rt_sigprocmask(SIG_SETMASK, [], [pid 6756] <... futex resumed>) = 0 [pid 6757] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6756] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6757] memfd_create("syzkaller", 0) = 3 [pid 6757] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6753] <... close resumed>) = 0 [pid 6753] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6752] <... futex resumed>) = 0 [pid 6753] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6752] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6752] <... futex resumed>) = 0 [pid 6753] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6752] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6753] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6752] <... futex resumed>) = 0 [pid 6753] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6752] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6752] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6753] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6753] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6752] <... futex resumed>) = 0 [pid 6753] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6752] exit_group(0) = ? [pid 6753] <... futex resumed>) = ? [pid 6753] +++ exited with 0 +++ [pid 6752] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6752, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6758 attached , child_tidptr=0x55556c203690) = 6758 [pid 6758] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6758] setpgid(0, 0) = 0 [pid 6758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6758] write(3, "1000", 4) = 4 executing program [pid 6758] close(3) = 0 [pid 6758] write(1, "executing program\n", 18) = 18 [pid 6758] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6758] <... futex resumed>) = 0 [pid 6758] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6758] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6758] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6758] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6758] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6759 attached => {parent_tid=[6759]}, 88) = 6759 [pid 6758] rt_sigprocmask(SIG_SETMASK, [], [pid 6759] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6759] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6759] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6759] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6758] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6758] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... futex resumed>) = 0 [pid 6758] <... futex resumed>) = 1 [pid 6759] memfd_create("syzkaller", 0 [pid 6758] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6759] <... memfd_create resumed>) = 3 [pid 6759] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6755] <... write resumed>) = 16777216 [pid 6755] munmap(0x7fb71c400000, 138412032) = 0 [pid 6755] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6755] close(3 [pid 6759] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6757] <... write resumed>) = 16777216 [pid 6757] munmap(0x7fb71c400000, 138412032) = 0 [pid 6757] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6757] close(3 [pid 6755] <... close resumed>) = 0 [pid 6755] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6755] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] <... futex resumed>) = 0 [pid 6754] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] <... futex resumed>) = 0 [pid 6754] <... futex resumed>) = 1 [pid 6755] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6754] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6755] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6754] <... futex resumed>) = 0 [pid 6755] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6755] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6754] <... futex resumed>) = 0 [pid 6755] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6754] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6754] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6755] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] exit_group(0 [pid 6755] <... futex resumed>) = ? [pid 6754] <... exit_group resumed>) = ? [pid 6755] +++ exited with 0 +++ [pid 6754] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6754, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6760 attached , child_tidptr=0x55556c203690) = 6760 [pid 6760] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6760] setpgid(0, 0) = 0 [pid 6760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6760] write(3, "1000", 4) = 4 [pid 6760] close(3) = 0 [pid 6760] write(1, "executing program\n", 18executing program ) = 18 [pid 6760] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6760] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6760] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6760] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6760] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6760] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6760] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6761 attached => {parent_tid=[6761]}, 88) = 6761 [pid 6760] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6760] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6760] <... futex resumed>) = 0 [pid 6757] <... close resumed>) = 0 [pid 6761] <... rseq resumed>) = 0 [pid 6761] set_robust_list(0x7fb72497a9a0, 24 [pid 6760] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6757] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] <... set_robust_list resumed>) = 0 [pid 6757] <... futex resumed>) = 1 [pid 6756] <... futex resumed>) = 0 [pid 6761] rt_sigprocmask(SIG_SETMASK, [], [pid 6757] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6756] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6757] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6756] <... futex resumed>) = 0 [pid 6761] memfd_create("syzkaller", 0 [pid 6757] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6756] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6761] <... memfd_create resumed>) = 3 [pid 6761] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6757] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6761] <... mmap resumed>) = 0x7fb71c400000 [pid 6757] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... write resumed>) = 16777216 [pid 6759] munmap(0x7fb71c400000, 138412032 [pid 6757] <... futex resumed>) = 1 [pid 6756] <... futex resumed>) = 0 [pid 6757] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6756] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6756] <... futex resumed>) = 0 [pid 6757] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6756] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6757] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6759] <... munmap resumed>) = 0 [pid 6757] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6757] <... futex resumed>) = 1 [pid 6756] <... futex resumed>) = 0 [pid 6759] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6757] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6756] exit_group(0 [pid 6757] <... futex resumed>) = ? [pid 6756] <... exit_group resumed>) = ? [pid 6759] close(3 [pid 6757] +++ exited with 0 +++ [pid 6756] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6756, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6762 attached , child_tidptr=0x55556c203690) = 6762 [pid 6762] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6762] setpgid(0, 0) = 0 [pid 6762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6762] write(3, "1000", 4) = 4 [pid 6762] close(3) = 0 executing program [pid 6762] write(1, "executing program\n", 18) = 18 [pid 6762] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6762] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6762] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6762] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6762] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6762] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6762] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6763]}, 88) = 6763 ./strace-static-x86_64: Process 6763 attached [pid 6762] rt_sigprocmask(SIG_SETMASK, [], [pid 6763] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6763] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6763] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6763] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6762] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6762] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6763] <... futex resumed>) = 0 [pid 6762] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6763] memfd_create("syzkaller", 0) = 3 [pid 6763] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6761] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6763] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6759] <... close resumed>) = 0 [pid 6759] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6758] <... futex resumed>) = 0 [pid 6759] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6758] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6758] <... futex resumed>) = 0 [pid 6759] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6758] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6759] <... futex resumed>) = 0 [pid 6758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6759] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6758] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6758] <... futex resumed>) = 0 [pid 6759] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6758] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6759] <... futex resumed>) = 0 [pid 6758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6759] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6758] exit_group(0 [pid 6759] <... futex resumed>) = ? [pid 6758] <... exit_group resumed>) = ? [pid 6759] +++ exited with 0 +++ [pid 6758] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6758, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6764 attached , child_tidptr=0x55556c203690) = 6764 [pid 6764] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6764] setpgid(0, 0) = 0 [pid 6764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6764] write(3, "1000", 4) = 4 [pid 6764] close(3) = 0 [pid 6764] write(1, "executing program\n", 18) = 18 [pid 6764] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6764] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6764] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6764] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6764] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6764] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6764] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6765 attached [pid 6765] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6765] set_robust_list(0x7fb72497a9a0, 24 [pid 6764] <... clone3 resumed> => {parent_tid=[6765]}, 88) = 6765 [pid 6765] <... set_robust_list resumed>) = 0 [pid 6764] rt_sigprocmask(SIG_SETMASK, [], [pid 6765] rt_sigprocmask(SIG_SETMASK, [], [pid 6764] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6765] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6765] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6764] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6765] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6764] <... futex resumed>) = 0 [pid 6765] memfd_create("syzkaller", 0 [pid 6764] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6765] <... memfd_create resumed>) = 3 [pid 6765] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6761] <... write resumed>) = 16777216 [pid 6761] munmap(0x7fb71c400000, 138412032) = 0 [pid 6761] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6761] close(3 [pid 6765] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6763] <... write resumed>) = 16777216 [pid 6763] munmap(0x7fb71c400000, 138412032) = 0 [pid 6763] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6763] close(3 [pid 6761] <... close resumed>) = 0 [pid 6761] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6760] <... futex resumed>) = 0 [pid 6760] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6760] <... futex resumed>) = 0 [pid 6760] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6761] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6761] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6761] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6760] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6760] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] <... futex resumed>) = 0 [pid 6760] <... futex resumed>) = 1 [pid 6761] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6760] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6761] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6761] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6760] <... futex resumed>) = 0 [pid 6760] exit_group(0) = ? [pid 6761] +++ exited with 0 +++ [pid 6760] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6760, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6766 attached , child_tidptr=0x55556c203690) = 6766 [pid 6766] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6766] setpgid(0, 0) = 0 [pid 6766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6766] write(3, "1000", 4) = 4 [pid 6766] close(3executing program ) = 0 [pid 6766] write(1, "executing program\n", 18) = 18 [pid 6766] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6766] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6766] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6766] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6766] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6766] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6766] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6767 attached [pid 6767] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6766] <... clone3 resumed> => {parent_tid=[6767]}, 88) = 6767 [pid 6767] <... rseq resumed>) = 0 [pid 6766] rt_sigprocmask(SIG_SETMASK, [], [pid 6767] set_robust_list(0x7fb72497a9a0, 24 [pid 6766] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6767] <... set_robust_list resumed>) = 0 [pid 6766] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] rt_sigprocmask(SIG_SETMASK, [], [pid 6766] <... futex resumed>) = 0 [pid 6767] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6766] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6767] memfd_create("syzkaller", 0) = 3 [pid 6767] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6763] <... close resumed>) = 0 [pid 6765] <... write resumed>) = 16777216 [pid 6765] munmap(0x7fb71c400000, 138412032 [pid 6763] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6762] <... futex resumed>) = 0 [pid 6763] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6762] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6765] <... munmap resumed>) = 0 [pid 6763] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6762] <... futex resumed>) = 0 [pid 6763] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6762] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6763] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6763] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6762] <... futex resumed>) = 0 [pid 6763] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6762] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6763] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6762] <... futex resumed>) = 0 [pid 6763] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6762] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6763] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6763] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6762] <... futex resumed>) = 0 [pid 6763] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6762] exit_group(0 [pid 6763] <... futex resumed>) = ? [pid 6762] <... exit_group resumed>) = ? [pid 6763] +++ exited with 0 +++ [pid 6765] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6767] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6762] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6762, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=34 /* 0.34 s */} --- [pid 6765] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6768 attached [pid 6768] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6768] setpgid(0, 0 [pid 6765] close(3 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6768 [pid 6768] <... setpgid resumed>) = 0 [pid 6768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6768] write(3, "1000", 4) = 4 [pid 6768] close(3) = 0 [pid 6768] write(1, "executing program\n", 18) = 18 [pid 6768] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6768] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6768] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6768] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6768] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6768] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6768] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6769 attached => {parent_tid=[6769]}, 88) = 6769 [pid 6768] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6768] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6768] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6769] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6769] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6769] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6769] memfd_create("syzkaller", 0) = 3 [pid 6769] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6765] <... close resumed>) = 0 [pid 6765] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6764] <... futex resumed>) = 0 [pid 6764] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6764] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6765] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6765] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6764] <... futex resumed>) = 0 [pid 6764] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6764] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6765] <... futex resumed>) = 1 [pid 6765] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6765] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6764] <... futex resumed>) = 0 [pid 6764] exit_group(0) = ? [pid 6765] <... futex resumed>) = ? [pid 6767] <... write resumed>) = 16777216 [pid 6765] +++ exited with 0 +++ [pid 6764] +++ exited with 0 +++ [pid 6767] munmap(0x7fb71c400000, 138412032 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6764, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=39 /* 0.39 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6770 attached [pid 6769] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6770 [pid 6770] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6770] setpgid(0, 0 [pid 6767] <... munmap resumed>) = 0 [pid 6770] <... setpgid resumed>) = 0 [pid 6767] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6767] close(3 [pid 6770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6770] write(3, "1000", 4) = 4 [pid 6770] close(3) = 0 executing program [pid 6770] write(1, "executing program\n", 18) = 18 [pid 6770] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6770] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6770] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6770] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6770] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6770] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6770] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6771 attached => {parent_tid=[6771]}, 88) = 6771 [pid 6771] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6770] rt_sigprocmask(SIG_SETMASK, [], [pid 6771] <... rseq resumed>) = 0 [pid 6770] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6771] set_robust_list(0x7fb72497a9a0, 24 [pid 6770] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6771] <... set_robust_list resumed>) = 0 [pid 6770] <... futex resumed>) = 0 [pid 6771] rt_sigprocmask(SIG_SETMASK, [], [pid 6770] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6771] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6771] memfd_create("syzkaller", 0) = 3 [pid 6771] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6771] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6767] <... close resumed>) = 0 [pid 6767] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6766] <... futex resumed>) = 0 [pid 6767] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6766] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6766] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6767] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6767] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6766] <... futex resumed>) = 0 [pid 6766] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6766] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6767] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6767] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6767] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6766] <... futex resumed>) = 0 [pid 6766] exit_group(0 [pid 6767] <... futex resumed>) = ? [pid 6766] <... exit_group resumed>) = ? [pid 6767] +++ exited with 0 +++ [pid 6766] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6766, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6769] <... write resumed>) = 16777216 [pid 6769] munmap(0x7fb71c400000, 138412032 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6772 attached , child_tidptr=0x55556c203690) = 6772 [pid 6769] <... munmap resumed>) = 0 [pid 6772] set_robust_list(0x55556c2036a0, 24 [pid 6769] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6772] <... set_robust_list resumed>) = 0 [pid 6769] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6769] close(3 [pid 6772] <... prctl resumed>) = 0 [pid 6772] setpgid(0, 0) = 0 [pid 6772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6772] write(3, "1000", 4) = 4 executing program [pid 6772] close(3) = 0 [pid 6772] write(1, "executing program\n", 18) = 18 [pid 6772] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6772] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6772] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6772] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6772] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6772] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6773]}, 88) = 6773 ./strace-static-x86_64: Process 6773 attached [pid 6772] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6772] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6772] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6773] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6773] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6773] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6773] memfd_create("syzkaller", 0) = 3 [pid 6773] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6773] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6769] <... close resumed>) = 0 [pid 6769] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6768] <... futex resumed>) = 0 [pid 6768] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6768] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6769] <... futex resumed>) = 1 [pid 6769] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6771] <... write resumed>) = 16777216 [pid 6769] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6771] munmap(0x7fb71c400000, 138412032 [pid 6769] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6768] <... futex resumed>) = 0 [pid 6768] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6768] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6769] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6769] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6768] <... futex resumed>) = 0 [pid 6768] exit_group(0) = ? [pid 6769] +++ exited with 0 +++ [pid 6768] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6768, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6771] <... munmap resumed>) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6771] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6771] close(3 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6774 attached , child_tidptr=0x55556c203690) = 6774 [pid 6774] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6774] setpgid(0, 0) = 0 [pid 6774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6774] write(3, "1000", 4) = 4 executing program [pid 6774] close(3) = 0 [pid 6774] write(1, "executing program\n", 18) = 18 [pid 6774] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6774] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6774] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6774] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6774] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6774] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6774] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6775 attached => {parent_tid=[6775]}, 88) = 6775 [pid 6774] rt_sigprocmask(SIG_SETMASK, [], [pid 6775] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6774] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6774] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6774] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6775] <... rseq resumed>) = 0 [pid 6775] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6775] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6775] memfd_create("syzkaller", 0) = 3 [pid 6775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6773] <... write resumed>) = 16777216 [pid 6773] munmap(0x7fb71c400000, 138412032) = 0 [pid 6773] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6773] close(3 [pid 6775] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6771] <... close resumed>) = 0 [pid 6771] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6771] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6770] <... futex resumed>) = 0 [pid 6770] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6771] <... futex resumed>) = 0 [pid 6770] <... futex resumed>) = 1 [pid 6771] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6771] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6771] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6770] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6770] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6771] <... futex resumed>) = 0 [pid 6770] <... futex resumed>) = 1 [pid 6771] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6770] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6771] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6771] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6771] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6770] <... futex resumed>) = 0 [pid 6770] exit_group(0 [pid 6771] <... futex resumed>) = ? [pid 6770] <... exit_group resumed>) = ? [pid 6771] +++ exited with 0 +++ [pid 6770] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6770, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6776 attached , child_tidptr=0x55556c203690) = 6776 [pid 6776] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6776] setpgid(0, 0 [pid 6773] <... close resumed>) = 0 [pid 6776] <... setpgid resumed>) = 0 [pid 6773] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6773] <... futex resumed>) = 1 [pid 6776] <... openat resumed>) = 3 [pid 6772] <... futex resumed>) = 0 [pid 6773] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6772] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6776] write(3, "1000", 4 [pid 6773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6772] <... futex resumed>) = 0 [pid 6776] <... write resumed>) = 4 [pid 6773] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6772] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6776] close(3 [pid 6773] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6776] <... close resumed>) = 0 [pid 6773] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6776] write(1, "executing program\n", 18executing program ) = 18 [pid 6776] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6773] <... futex resumed>) = 1 [pid 6772] <... futex resumed>) = 0 [pid 6776] <... futex resumed>) = 0 [pid 6773] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6772] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6772] <... futex resumed>) = 0 [pid 6773] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6772] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6773] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6773] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6772] <... futex resumed>) = 0 [pid 6772] exit_group(0) = ? [pid 6776] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6773] +++ exited with 0 +++ [pid 6776] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6776] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6776] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6776] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6776] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6776] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6772] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6772, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- ./strace-static-x86_64: Process 6777 attached [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6777] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6777] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6777] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6777] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6776] <... clone3 resumed> => {parent_tid=[6777]}, 88) = 6777 [pid 6776] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6776] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6777] <... futex resumed>) = 0 [pid 6776] <... futex resumed>) = 1 [pid 6777] memfd_create("syzkaller", 0 [pid 6776] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5868] <... restart_syscall resumed>) = 0 [pid 6777] <... memfd_create resumed>) = 3 [pid 6777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6778 attached , child_tidptr=0x55556c203690) = 6778 [pid 6778] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6778] setpgid(0, 0) = 0 [pid 6778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6778] write(3, "1000", 4) = 4 [pid 6778] close(3executing program ) = 0 [pid 6778] write(1, "executing program\n", 18) = 18 [pid 6778] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6778] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6778] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6778] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6778] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6778] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6779 attached => {parent_tid=[6779]}, 88) = 6779 [pid 6778] rt_sigprocmask(SIG_SETMASK, [], [pid 6779] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6778] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6778] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6779] <... rseq resumed>) = 0 [pid 6778] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6779] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6779] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6779] memfd_create("syzkaller", 0) = 3 [pid 6779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6775] <... write resumed>) = 16777216 [pid 6775] munmap(0x7fb71c400000, 138412032) = 0 [pid 6775] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6777] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6775] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6775] close(3 [pid 6779] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6775] <... close resumed>) = 0 [pid 6775] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6774] <... futex resumed>) = 0 [pid 6775] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6774] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6775] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6774] <... futex resumed>) = 0 [pid 6775] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6775] <... futex resumed>) = 0 [pid 6774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6775] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6774] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6775] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6774] <... futex resumed>) = 0 [pid 6775] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6775] <... futex resumed>) = 0 [pid 6774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6775] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6774] exit_group(0 [pid 6775] <... futex resumed>) = ? [pid 6774] <... exit_group resumed>) = ? [pid 6775] +++ exited with 0 +++ [pid 6774] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6774, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6780 attached , child_tidptr=0x55556c203690) = 6780 [pid 6780] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6780] setpgid(0, 0) = 0 [pid 6780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6780] write(3, "1000", 4) = 4 [pid 6780] close(3) = 0 [pid 6780] write(1, "executing program\n", 18executing program ) = 18 [pid 6780] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6780] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6780] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6780] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6780] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6780] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6780] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6781 attached [pid 6781] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6780] <... clone3 resumed> => {parent_tid=[6781]}, 88) = 6781 [pid 6781] <... rseq resumed>) = 0 [pid 6780] rt_sigprocmask(SIG_SETMASK, [], [pid 6781] set_robust_list(0x7fb72497a9a0, 24 [pid 6780] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6781] <... set_robust_list resumed>) = 0 [pid 6780] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6781] rt_sigprocmask(SIG_SETMASK, [], [pid 6780] <... futex resumed>) = 0 [pid 6781] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6780] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6781] memfd_create("syzkaller", 0) = 3 [pid 6781] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6779] <... write resumed>) = 16777216 [pid 6779] munmap(0x7fb71c400000, 138412032 [pid 6777] <... write resumed>) = 16777216 [pid 6779] <... munmap resumed>) = 0 [pid 6777] munmap(0x7fb71c400000, 138412032 [pid 6779] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6779] close(3 [pid 6777] <... munmap resumed>) = 0 [pid 6777] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6777] close(3 [pid 6781] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6779] <... close resumed>) = 0 [pid 6779] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6778] <... futex resumed>) = 0 [pid 6779] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6778] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6779] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6778] <... futex resumed>) = 0 [pid 6779] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6779] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6778] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6778] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6779] <... futex resumed>) = 0 [pid 6778] <... futex resumed>) = 1 [pid 6778] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6779] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6779] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6779] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6778] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6778] exit_group(0 [pid 6779] <... futex resumed>) = ? [pid 6778] <... exit_group resumed>) = ? [pid 6779] +++ exited with 0 +++ [pid 6778] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6778, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6782 ./strace-static-x86_64: Process 6782 attached [pid 6782] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6782] setpgid(0, 0) = 0 [pid 6782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6777] <... close resumed>) = 0 [pid 6782] write(3, "1000", 4) = 4 [pid 6777] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6782] close(3 [pid 6777] <... futex resumed>) = 1 [pid 6776] <... futex resumed>) = 0 [pid 6782] <... close resumed>) = 0 [pid 6777] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6776] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6782] write(1, "executing program\n", 18 executing program [pid 6777] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6776] <... futex resumed>) = 0 [pid 6782] <... write resumed>) = 18 [pid 6777] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6776] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6782] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6777] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6782] <... futex resumed>) = 0 [pid 6777] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6776] <... futex resumed>) = 0 [pid 6782] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6776] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6782] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6777] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6776] <... futex resumed>) = 0 [pid 6782] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6781] <... write resumed>) = 16777216 [pid 6777] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6776] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6782] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6781] munmap(0x7fb71c400000, 138412032 [pid 6777] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6782] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6777] <... futex resumed>) = 0 [pid 6776] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6782] <... mmap resumed>) = 0x7fb72495a000 [pid 6777] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6776] exit_group(0 [pid 6782] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6777] <... futex resumed>) = ? [pid 6776] <... exit_group resumed>) = ? [pid 6777] +++ exited with 0 +++ [pid 6782] <... mprotect resumed>) = 0 [pid 6782] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6781] <... munmap resumed>) = 0 [pid 6776] +++ exited with 0 +++ [pid 6782] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6776, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=40 /* 0.40 s */} --- [pid 6781] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6782] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6783 attached [pid 6781] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6783] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6782] <... clone3 resumed> => {parent_tid=[6783]}, 88) = 6783 [pid 6781] close(3 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6783] <... rseq resumed>) = 0 [pid 6782] rt_sigprocmask(SIG_SETMASK, [], [pid 6783] set_robust_list(0x7fb72497a9a0, 24 [pid 6782] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6783] <... set_robust_list resumed>) = 0 [pid 6782] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6783] rt_sigprocmask(SIG_SETMASK, [], [pid 6782] <... futex resumed>) = 0 [pid 6783] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6782] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6783] memfd_create("syzkaller", 0) = 3 [pid 6783] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6784 ./strace-static-x86_64: Process 6784 attached [pid 6784] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6784] setpgid(0, 0) = 0 [pid 6784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6784] write(3, "1000", 4) = 4 [pid 6784] close(3executing program ) = 0 [pid 6784] write(1, "executing program\n", 18) = 18 [pid 6784] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6784] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6784] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6784] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6784] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6784] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6784] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6785 attached [pid 6785] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6784] <... clone3 resumed> => {parent_tid=[6785]}, 88) = 6785 [pid 6785] <... rseq resumed>) = 0 [pid 6784] rt_sigprocmask(SIG_SETMASK, [], [pid 6785] set_robust_list(0x7fb72497a9a0, 24 [pid 6784] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6785] <... set_robust_list resumed>) = 0 [pid 6784] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6785] rt_sigprocmask(SIG_SETMASK, [], [pid 6784] <... futex resumed>) = 0 [pid 6785] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6784] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6785] memfd_create("syzkaller", 0) = 3 [pid 6785] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6783] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6781] <... close resumed>) = 0 [pid 6781] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6781] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6780] <... futex resumed>) = 0 [pid 6780] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6781] <... futex resumed>) = 0 [pid 6780] <... futex resumed>) = 1 [pid 6781] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6780] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6781] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6781] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6780] <... futex resumed>) = 0 [pid 6781] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6780] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6780] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6781] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6781] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6781] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6781] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6785] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6780] <... futex resumed>) = 0 [pid 6780] exit_group(0 [pid 6781] <... futex resumed>) = ? [pid 6780] <... exit_group resumed>) = ? [pid 6781] +++ exited with 0 +++ [pid 6780] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6780, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6786 attached , child_tidptr=0x55556c203690) = 6786 [pid 6786] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6786] setpgid(0, 0) = 0 [pid 6786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6786] write(3, "1000", 4) = 4 [pid 6786] close(3) = 0 executing program [pid 6786] write(1, "executing program\n", 18) = 18 [pid 6786] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6786] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6786] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6786] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6786] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6786] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6786] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6787 attached [pid 6787] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6786] <... clone3 resumed> => {parent_tid=[6787]}, 88) = 6787 [pid 6787] <... rseq resumed>) = 0 [pid 6786] rt_sigprocmask(SIG_SETMASK, [], [pid 6787] set_robust_list(0x7fb72497a9a0, 24 [pid 6786] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6787] <... set_robust_list resumed>) = 0 [pid 6786] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6787] rt_sigprocmask(SIG_SETMASK, [], [pid 6786] <... futex resumed>) = 0 [pid 6787] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6786] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6787] memfd_create("syzkaller", 0) = 3 [pid 6787] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6783] <... write resumed>) = 16777216 [pid 6783] munmap(0x7fb71c400000, 138412032 [pid 6787] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6783] <... munmap resumed>) = 0 [pid 6783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6783] close(3 [pid 6785] <... write resumed>) = 16777216 [pid 6785] munmap(0x7fb71c400000, 138412032) = 0 [pid 6785] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6785] close(3 [pid 6783] <... close resumed>) = 0 [pid 6787] <... write resumed>) = 16777216 [pid 6787] munmap(0x7fb71c400000, 138412032 [pid 6783] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6782] <... futex resumed>) = 0 [pid 6782] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6783] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6782] <... futex resumed>) = 0 [pid 6782] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6783] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6783] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6782] <... futex resumed>) = 0 [pid 6783] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6782] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6783] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6782] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6783] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6783] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6782] <... futex resumed>) = 0 [pid 6783] <... futex resumed>) = 1 [pid 6783] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6782] exit_group(0) = ? [pid 6783] <... futex resumed>) = ? [pid 6783] +++ exited with 0 +++ [pid 6782] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6782, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6787] <... munmap resumed>) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6787] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6787] close(3 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6788 attached , child_tidptr=0x55556c203690) = 6788 [pid 6788] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6788] setpgid(0, 0) = 0 [pid 6788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6788] write(3, "1000", 4 [pid 6785] <... close resumed>) = 0 [pid 6788] <... write resumed>) = 4 [pid 6788] close(3 [pid 6785] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6788] <... close resumed>) = 0 executing program [pid 6785] <... futex resumed>) = 1 [pid 6784] <... futex resumed>) = 0 [pid 6788] write(1, "executing program\n", 18 [pid 6785] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6788] <... write resumed>) = 18 [pid 6784] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6788] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6785] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6784] <... futex resumed>) = 0 [pid 6788] <... futex resumed>) = 0 [pid 6785] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6784] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6788] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6785] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6788] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6785] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6788] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6785] <... futex resumed>) = 1 [pid 6784] <... futex resumed>) = 0 [pid 6788] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6785] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6788] <... mmap resumed>) = 0x7fb72495a000 [pid 6788] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6788] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6788] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6789]}, 88) = 6789 [pid 6788] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6788] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6788] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6789 attached [pid 6784] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6785] <... futex resumed>) = 0 [pid 6784] <... futex resumed>) = 1 [pid 6789] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6785] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6784] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6789] <... rseq resumed>) = 0 [pid 6785] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6789] set_robust_list(0x7fb72497a9a0, 24 [pid 6785] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6789] <... set_robust_list resumed>) = 0 [pid 6789] rt_sigprocmask(SIG_SETMASK, [], [pid 6785] <... futex resumed>) = 1 [pid 6784] <... futex resumed>) = 0 [pid 6789] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6785] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6784] exit_group(0 [pid 6789] memfd_create("syzkaller", 0 [pid 6785] <... futex resumed>) = ? [pid 6784] <... exit_group resumed>) = ? [pid 6789] <... memfd_create resumed>) = 3 [pid 6789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6785] +++ exited with 0 +++ [pid 6784] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6784, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6790 attached , child_tidptr=0x55556c203690) = 6790 [pid 6790] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6790] setpgid(0, 0) = 0 [pid 6790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6790] write(3, "1000", 4) = 4 [pid 6790] close(3) = 0 executing program [pid 6790] write(1, "executing program\n", 18) = 18 [pid 6790] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6790] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6790] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6790] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6790] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6790] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6791 attached => {parent_tid=[6791]}, 88) = 6791 [pid 6791] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6790] rt_sigprocmask(SIG_SETMASK, [], [pid 6791] <... rseq resumed>) = 0 [pid 6791] set_robust_list(0x7fb72497a9a0, 24 [pid 6790] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6791] <... set_robust_list resumed>) = 0 [pid 6791] rt_sigprocmask(SIG_SETMASK, [], [pid 6790] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6791] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6791] memfd_create("syzkaller", 0 [pid 6790] <... futex resumed>) = 0 [pid 6791] <... memfd_create resumed>) = 3 [pid 6791] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6790] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6791] <... mmap resumed>) = 0x7fb71c400000 [pid 6787] <... close resumed>) = 0 [pid 6787] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6787] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6786] <... futex resumed>) = 0 [pid 6786] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6787] <... futex resumed>) = 0 [pid 6786] <... futex resumed>) = 1 [pid 6787] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6786] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6787] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6787] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6786] <... futex resumed>) = 0 [pid 6787] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6786] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6787] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6786] <... futex resumed>) = 0 [pid 6787] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6786] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6787] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6787] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6786] <... futex resumed>) = 0 [pid 6787] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6786] exit_group(0 [pid 6787] <... futex resumed>) = ? [pid 6786] <... exit_group resumed>) = ? [pid 6787] +++ exited with 0 +++ [pid 6786] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6786, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6792 attached , child_tidptr=0x55556c203690) = 6792 [pid 6792] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6792] setpgid(0, 0) = 0 [pid 6792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6792] write(3, "1000", 4) = 4 [pid 6792] close(3executing program ) = 0 [pid 6792] write(1, "executing program\n", 18) = 18 [pid 6792] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6792] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6792] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6792] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6792] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6792] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6792] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6793 attached [pid 6793] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6792] <... clone3 resumed> => {parent_tid=[6793]}, 88) = 6793 [pid 6793] <... rseq resumed>) = 0 [pid 6792] rt_sigprocmask(SIG_SETMASK, [], [pid 6793] set_robust_list(0x7fb72497a9a0, 24 [pid 6792] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6791] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6789] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6793] <... set_robust_list resumed>) = 0 [pid 6792] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6792] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6793] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6793] memfd_create("syzkaller", 0) = 3 [pid 6793] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6793] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6791] <... write resumed>) = 16777216 [pid 6791] munmap(0x7fb71c400000, 138412032 [pid 6789] <... write resumed>) = 16777216 [pid 6791] <... munmap resumed>) = 0 [pid 6789] munmap(0x7fb71c400000, 138412032 [pid 6791] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6791] close(3 [pid 6789] <... munmap resumed>) = 0 [pid 6789] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6789] close(3 [pid 6793] <... write resumed>) = 16777216 [pid 6793] munmap(0x7fb71c400000, 138412032) = 0 [pid 6793] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6793] close(3 [pid 6791] <... close resumed>) = 0 [pid 6791] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6790] <... futex resumed>) = 0 [pid 6791] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6790] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6790] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6791] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6791] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6791] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6790] <... futex resumed>) = 0 [pid 6790] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6790] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6791] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6791] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6790] <... futex resumed>) = 0 [pid 6790] exit_group(0) = ? [pid 6791] +++ exited with 0 +++ [pid 6790] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6790, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6794 attached , child_tidptr=0x55556c203690) = 6794 [pid 6794] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6794] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6789] <... close resumed>) = 0 [pid 6794] <... prctl resumed>) = 0 [pid 6794] setpgid(0, 0 [pid 6789] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6794] <... setpgid resumed>) = 0 [pid 6789] <... futex resumed>) = 1 [pid 6788] <... futex resumed>) = 0 [pid 6794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6788] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6794] <... openat resumed>) = 3 [pid 6789] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6788] <... futex resumed>) = 0 [pid 6794] write(3, "1000", 4 [pid 6789] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6788] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6794] <... write resumed>) = 4 [pid 6789] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6794] close(3 [pid 6789] <... futex resumed>) = 0 [pid 6788] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6794] <... close resumed>) = 0 [pid 6794] write(1, "executing program\n", 18 [pid 6789] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6794] <... write resumed>) = 18 [pid 6789] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6788] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000executing program [pid 6794] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6789] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6794] <... futex resumed>) = 0 [pid 6794] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6789] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6788] <... futex resumed>) = 0 [pid 6794] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6789] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6788] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6794] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6789] <... futex resumed>) = 0 [pid 6788] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6794] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6789] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6794] <... mmap resumed>) = 0x7fb72495a000 [pid 6788] exit_group(0 [pid 6794] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6789] <... futex resumed>) = ? [pid 6788] <... exit_group resumed>) = ? [pid 6794] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6789] +++ exited with 0 +++ [pid 6794] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6794] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6795 attached [pid 6795] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6794] <... clone3 resumed> => {parent_tid=[6795]}, 88) = 6795 [pid 6795] <... rseq resumed>) = 0 [pid 6794] rt_sigprocmask(SIG_SETMASK, [], [pid 6795] set_robust_list(0x7fb72497a9a0, 24 [pid 6794] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6795] <... set_robust_list resumed>) = 0 [pid 6794] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6795] rt_sigprocmask(SIG_SETMASK, [], [pid 6794] <... futex resumed>) = 0 [pid 6795] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6794] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6795] memfd_create("syzkaller", 0) = 3 [pid 6795] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6788] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6788, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6796 attached [pid 6796] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6796] setpgid(0, 0) = 0 [pid 6796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6796] write(3, "1000", 4) = 4 [pid 6796] close(3) = 0 [pid 6796] write(1, "executing program\n", 18executing program ) = 18 [pid 6796] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6796] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6796] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6796] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6796] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6796] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6796] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6797 attached [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6796 [pid 6796] <... clone3 resumed> => {parent_tid=[6797]}, 88) = 6797 [pid 6796] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6796] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6796] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6797] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6797] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6797] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6797] memfd_create("syzkaller", 0) = 3 [pid 6797] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6795] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6793] <... close resumed>) = 0 [pid 6793] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6792] <... futex resumed>) = 0 [pid 6793] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6792] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6793] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6792] <... futex resumed>) = 0 [pid 6793] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6792] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6793] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6793] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6793] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6792] <... futex resumed>) = 0 [pid 6793] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6792] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6793] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6792] <... futex resumed>) = 0 [pid 6793] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6792] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6793] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6792] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6793] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6792] exit_group(0 [pid 6793] <... futex resumed>) = ? [pid 6792] <... exit_group resumed>) = ? [pid 6793] +++ exited with 0 +++ [pid 6792] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6792, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6798 ./strace-static-x86_64: Process 6798 attached [pid 6798] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6797] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6798] setpgid(0, 0) = 0 [pid 6798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6798] write(3, "1000", 4) = 4 [pid 6798] close(3executing program ) = 0 [pid 6798] write(1, "executing program\n", 18) = 18 [pid 6798] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6798] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6798] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6798] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6798] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6798] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6798] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6799]}, 88) = 6799 [pid 6798] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6798] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6798] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6799 attached [pid 6799] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6799] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6799] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6799] memfd_create("syzkaller", 0) = 3 [pid 6799] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6795] <... write resumed>) = 16777216 [pid 6795] munmap(0x7fb71c400000, 138412032) = 0 [pid 6799] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6795] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6795] close(3 [pid 6797] <... write resumed>) = 16777216 [pid 6797] munmap(0x7fb71c400000, 138412032) = 0 [pid 6797] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6797] close(3 [pid 6799] <... write resumed>) = 16777216 [pid 6799] munmap(0x7fb71c400000, 138412032) = 0 [pid 6799] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6799] close(3 [pid 6795] <... close resumed>) = 0 [pid 6795] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6794] <... futex resumed>) = 0 [pid 6794] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6794] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6795] <... futex resumed>) = 1 [pid 6795] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6795] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6794] <... futex resumed>) = 0 [pid 6794] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6794] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6795] <... futex resumed>) = 1 [pid 6795] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6795] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6794] <... futex resumed>) = 0 [pid 6794] exit_group(0 [pid 6795] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6794] <... exit_group resumed>) = ? [pid 6795] +++ exited with 0 +++ [pid 6794] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6794, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6800 ./strace-static-x86_64: Process 6800 attached [pid 6800] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6800] setpgid(0, 0) = 0 [pid 6800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6800] write(3, "1000", 4) = 4 executing program [pid 6800] close(3) = 0 [pid 6800] write(1, "executing program\n", 18) = 18 [pid 6800] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6800] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6800] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6800] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6800] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6800] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6800] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6801 attached => {parent_tid=[6801]}, 88) = 6801 [pid 6800] rt_sigprocmask(SIG_SETMASK, [], [pid 6801] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6800] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6800] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6800] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6801] <... rseq resumed>) = 0 [pid 6801] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6801] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6801] memfd_create("syzkaller", 0) = 3 [pid 6801] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6797] <... close resumed>) = 0 [pid 6797] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6796] <... futex resumed>) = 0 [pid 6796] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6796] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6797] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6797] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6796] <... futex resumed>) = 0 [pid 6797] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6796] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6797] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6796] <... futex resumed>) = 0 [pid 6796] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6797] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6797] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6796] <... futex resumed>) = 0 [pid 6797] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6796] exit_group(0) = ? [pid 6797] <... futex resumed>) = ? [pid 6797] +++ exited with 0 +++ [pid 6796] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6796, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6802 attached , child_tidptr=0x55556c203690) = 6802 [pid 6802] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6802] setpgid(0, 0) = 0 [pid 6802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6802] write(3, "1000", 4) = 4 [pid 6802] close(3executing program ) = 0 [pid 6802] write(1, "executing program\n", 18) = 18 [pid 6802] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6802] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6802] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6802] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6802] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6802] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6802] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6803]}, 88) = 6803 ./strace-static-x86_64: Process 6803 attached [pid 6802] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6802] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6803] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6803] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6802] <... futex resumed>) = 0 [pid 6803] rt_sigprocmask(SIG_SETMASK, [], [pid 6802] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6803] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6803] memfd_create("syzkaller", 0) = 3 [pid 6803] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6799] <... close resumed>) = 0 [pid 6799] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6798] <... futex resumed>) = 0 [pid 6799] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6798] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6799] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6798] <... futex resumed>) = 0 [pid 6799] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6798] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6799] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6799] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6798] <... futex resumed>) = 0 [pid 6799] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6798] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6799] <... futex resumed>) = 0 [pid 6798] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6799] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6799] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6798] <... futex resumed>) = 0 [pid 6799] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6798] exit_group(0 [pid 6799] <... futex resumed>) = ? [pid 6798] <... exit_group resumed>) = ? [pid 6799] +++ exited with 0 +++ [pid 6798] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6798, si_uid=0, si_status=0, si_utime=0, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6804 ./strace-static-x86_64: Process 6804 attached [pid 6804] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6804] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6801] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6804] <... prctl resumed>) = 0 [pid 6804] setpgid(0, 0) = 0 [pid 6804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6804] write(3, "1000", 4) = 4 [pid 6804] close(3) = 0 executing program [pid 6804] write(1, "executing program\n", 18) = 18 [pid 6804] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6804] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6804] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6804] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6804] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6804] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6804] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6805 attached [pid 6805] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6804] <... clone3 resumed> => {parent_tid=[6805]}, 88) = 6805 [pid 6805] <... rseq resumed>) = 0 [pid 6804] rt_sigprocmask(SIG_SETMASK, [], [pid 6805] set_robust_list(0x7fb72497a9a0, 24 [pid 6804] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6805] <... set_robust_list resumed>) = 0 [pid 6804] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6805] rt_sigprocmask(SIG_SETMASK, [], [pid 6804] <... futex resumed>) = 0 [pid 6805] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6804] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6805] memfd_create("syzkaller", 0) = 3 [pid 6805] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6803] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6805] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6801] <... write resumed>) = 16777216 [pid 6801] munmap(0x7fb71c400000, 138412032 [pid 6803] <... write resumed>) = 16777216 [pid 6803] munmap(0x7fb71c400000, 138412032 [pid 6801] <... munmap resumed>) = 0 [pid 6801] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6801] close(3 [pid 6803] <... munmap resumed>) = 0 [pid 6803] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6803] close(3 [pid 6801] <... close resumed>) = 0 [pid 6801] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6800] <... futex resumed>) = 0 [pid 6801] <... futex resumed>) = 1 [pid 6800] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6805] <... write resumed>) = 16777216 [pid 6801] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6800] <... futex resumed>) = 0 [pid 6805] munmap(0x7fb71c400000, 138412032 [pid 6801] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6800] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6801] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6800] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6801] <... futex resumed>) = 0 [pid 6800] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6801] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6800] <... futex resumed>) = 0 [pid 6801] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6800] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6801] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6800] <... futex resumed>) = 0 [pid 6801] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6800] exit_group(0 [pid 6801] <... futex resumed>) = ? [pid 6800] <... exit_group resumed>) = ? [pid 6801] +++ exited with 0 +++ [pid 6800] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6800, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6805] <... munmap resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6805] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6805] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 6806 attached [pid 6805] close(3 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6806 [pid 6806] set_robust_list(0x55556c2036a0, 24 [pid 6803] <... close resumed>) = 0 [pid 6806] <... set_robust_list resumed>) = 0 [pid 6803] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6803] <... futex resumed>) = 1 [pid 6802] <... futex resumed>) = 0 [pid 6806] setpgid(0, 0 [pid 6803] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6802] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6806] <... setpgid resumed>) = 0 [pid 6803] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6802] <... futex resumed>) = 0 [pid 6806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6802] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6803] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6806] <... openat resumed>) = 3 [pid 6803] <... futex resumed>) = 1 [pid 6802] <... futex resumed>) = 0 [pid 6803] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6802] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6803] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6802] <... futex resumed>) = 0 [pid 6803] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6802] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6806] write(3, "1000", 4 [pid 6803] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6806] <... write resumed>) = 4 [pid 6803] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6806] close(3 [pid 6803] <... futex resumed>) = 0 [pid 6806] <... close resumed>) = 0 [pid 6803] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6806] write(1, "executing program\n", 18 [pid 6802] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 6806] <... write resumed>) = 18 [pid 6802] exit_group(0 [pid 6806] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6802] <... exit_group resumed>) = ? [pid 6806] <... futex resumed>) = 0 [pid 6803] <... futex resumed>) = ? [pid 6806] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6803] +++ exited with 0 +++ [pid 6802] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6802, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=29 /* 0.29 s */} --- [pid 6806] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6806] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6806] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6806] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6806] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6807 attached => {parent_tid=[6807]}, 88) = 6807 [pid 6806] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6806] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6806] <... futex resumed>) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6806] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6807] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053./strace-static-x86_64: Process 6808 attached ) = 0 [pid 6808] set_robust_list(0x55556c2036a0, 24 [pid 6807] set_robust_list(0x7fb72497a9a0, 24 [pid 6808] <... set_robust_list resumed>) = 0 [pid 6807] <... set_robust_list resumed>) = 0 [pid 6808] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6807] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6808] <... prctl resumed>) = 0 [pid 6808] setpgid(0, 0 [pid 6807] memfd_create("syzkaller", 0 [pid 6808] <... setpgid resumed>) = 0 [pid 6807] <... memfd_create resumed>) = 3 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6808 [pid 6808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6807] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6808] <... openat resumed>) = 3 [pid 6808] write(3, "1000", 4) = 4 [pid 6808] close(3) = 0 executing program [pid 6808] write(1, "executing program\n", 18) = 18 [pid 6808] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6808] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6808] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6808] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6808] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6808] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6809 attached [pid 6809] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6809] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6808] <... clone3 resumed> => {parent_tid=[6809]}, 88) = 6809 [pid 6808] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6808] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6808] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6809] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6809] memfd_create("syzkaller", 0) = 3 [pid 6809] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6805] <... close resumed>) = 0 [pid 6805] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6804] <... futex resumed>) = 0 [pid 6804] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6804] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6805] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6807] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6805] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6804] <... futex resumed>) = 0 [pid 6805] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6804] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6805] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6804] <... futex resumed>) = 0 [pid 6805] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6804] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6805] <... futex resumed>) = 0 [pid 6804] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6805] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6804] exit_group(0 [pid 6805] <... futex resumed>) = ? [pid 6804] <... exit_group resumed>) = ? [pid 6805] +++ exited with 0 +++ [pid 6804] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6804, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6810 attached [pid 6810] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6810 [pid 6810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6810] setpgid(0, 0) = 0 [pid 6810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6810] write(3, "1000", 4) = 4 [pid 6810] close(3) = 0 [pid 6810] write(1, "executing program\n", 18executing program ) = 18 [pid 6810] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6810] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6810] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6810] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6810] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6810] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6810] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6811 attached => {parent_tid=[6811]}, 88) = 6811 [pid 6811] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6810] rt_sigprocmask(SIG_SETMASK, [], [pid 6811] <... rseq resumed>) = 0 [pid 6810] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6811] set_robust_list(0x7fb72497a9a0, 24 [pid 6810] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6811] <... set_robust_list resumed>) = 0 [pid 6810] <... futex resumed>) = 0 [pid 6811] rt_sigprocmask(SIG_SETMASK, [], [pid 6810] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6811] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6811] memfd_create("syzkaller", 0) = 3 [pid 6811] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6809] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6811] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6807] <... write resumed>) = 16777216 [pid 6807] munmap(0x7fb71c400000, 138412032) = 0 [pid 6807] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6807] close(3 [pid 6811] <... write resumed>) = 16777216 [pid 6811] munmap(0x7fb71c400000, 138412032) = 0 [pid 6811] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6809] <... write resumed>) = 16777216 [pid 6811] close(3 [pid 6809] munmap(0x7fb71c400000, 138412032) = 0 [pid 6809] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6809] close(3 [pid 6807] <... close resumed>) = 0 [pid 6807] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6807] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6806] <... futex resumed>) = 0 [pid 6806] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6807] <... futex resumed>) = 0 [pid 6806] <... futex resumed>) = 1 [pid 6807] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6806] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6807] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6806] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6807] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6806] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6807] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6807] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6807] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6807] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 6806] <... futex resumed>) = 1 [pid 6807] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6806] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6806] exit_group(0 [pid 6807] <... futex resumed>) = ? [pid 6806] <... exit_group resumed>) = ? [pid 6807] +++ exited with 0 +++ [pid 6806] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6806, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6811] <... close resumed>) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6812 attached , child_tidptr=0x55556c203690) = 6812 [pid 6812] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6811] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6812] setpgid(0, 0 [pid 6811] <... futex resumed>) = 1 [pid 6810] <... futex resumed>) = 0 [pid 6811] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6810] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6811] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6812] <... setpgid resumed>) = 0 [pid 6811] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6810] <... futex resumed>) = 0 [pid 6812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6811] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6810] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6811] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6810] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6812] <... openat resumed>) = 3 [pid 6810] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6811] <... futex resumed>) = 0 [pid 6810] <... futex resumed>) = 0 [pid 6811] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6810] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6811] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6812] write(3, "1000", 4 [pid 6811] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6812] <... write resumed>) = 4 [pid 6811] <... futex resumed>) = 1 [pid 6810] <... futex resumed>) = 0 [pid 6812] close(3 [pid 6811] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6812] <... close resumed>) = 0 [pid 6810] exit_group(0 executing program [pid 6812] write(1, "executing program\n", 18 [pid 6811] <... futex resumed>) = ? [pid 6810] <... exit_group resumed>) = ? [pid 6811] +++ exited with 0 +++ [pid 6812] <... write resumed>) = 18 [pid 6812] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6812] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6812] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6810] +++ exited with 0 +++ [pid 6812] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6810, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6812] <... mmap resumed>) = 0x7fb72495a000 [pid 6812] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6812] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5872] <... restart_syscall resumed>) = 0 [pid 6812] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6812] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6813 attached [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6812] <... clone3 resumed> => {parent_tid=[6813]}, 88) = 6813 [pid 6812] rt_sigprocmask(SIG_SETMASK, [], [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6812] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6812] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6812] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6814 attached [pid 6814] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6814] setpgid(0, 0) = 0 [pid 6813] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6809] <... close resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6814 [pid 6809] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6813] <... rseq resumed>) = 0 [pid 6809] <... futex resumed>) = 1 [pid 6808] <... futex resumed>) = 0 [pid 6809] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6808] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6809] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6809] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6808] <... futex resumed>) = 0 [pid 6813] set_robust_list(0x7fb72497a9a0, 24 [pid 6809] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6813] <... set_robust_list resumed>) = 0 [pid 6809] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6808] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6813] rt_sigprocmask(SIG_SETMASK, [], [pid 6809] <... futex resumed>) = 0 [pid 6808] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6813] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6809] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6808] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6809] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6808] <... futex resumed>) = 0 [pid 6814] <... openat resumed>) = 3 [pid 6813] memfd_create("syzkaller", 0 [pid 6809] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6808] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6813] <... memfd_create resumed>) = 3 [pid 6814] write(3, "1000", 4 [pid 6809] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6814] <... write resumed>) = 4 executing program [pid 6813] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6809] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6814] close(3 [pid 6809] <... futex resumed>) = 1 [pid 6808] <... futex resumed>) = 0 [pid 6814] <... close resumed>) = 0 [pid 6813] <... mmap resumed>) = 0x7fb71c400000 [pid 6809] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6814] write(1, "executing program\n", 18 [pid 6808] exit_group(0 [pid 6814] <... write resumed>) = 18 [pid 6814] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6809] <... futex resumed>) = ? [pid 6808] <... exit_group resumed>) = ? [pid 6814] <... futex resumed>) = 0 [pid 6809] +++ exited with 0 +++ [pid 6808] +++ exited with 0 +++ [pid 6814] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6808, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 6814] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6814] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6814] <... mmap resumed>) = 0x7fb72495a000 [pid 6814] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6815 ./strace-static-x86_64: Process 6815 attached [pid 6814] <... mprotect resumed>) = 0 [pid 6814] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6815] set_robust_list(0x55556c2036a0, 24 [pid 6814] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6816 attached [pid 6815] <... set_robust_list resumed>) = 0 [pid 6816] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6814] <... clone3 resumed> => {parent_tid=[6816]}, 88) = 6816 [pid 6816] <... rseq resumed>) = 0 [pid 6814] rt_sigprocmask(SIG_SETMASK, [], [pid 6816] set_robust_list(0x7fb72497a9a0, 24 [pid 6815] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6814] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6816] <... set_robust_list resumed>) = 0 [pid 6815] <... prctl resumed>) = 0 [pid 6814] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6816] rt_sigprocmask(SIG_SETMASK, [], [pid 6815] setpgid(0, 0 [pid 6814] <... futex resumed>) = 0 [pid 6816] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6815] <... setpgid resumed>) = 0 [pid 6816] memfd_create("syzkaller", 0 [pid 6815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6814] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6816] <... memfd_create resumed>) = 3 [pid 6816] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6815] <... openat resumed>) = 3 [pid 6816] <... mmap resumed>) = 0x7fb71c400000 [pid 6815] write(3, "1000", 4) = 4 [pid 6815] close(3) = 0 executing program [pid 6815] write(1, "executing program\n", 18) = 18 [pid 6815] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6815] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6815] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6815] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6815] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6815] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6815] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6817 attached => {parent_tid=[6817]}, 88) = 6817 [pid 6815] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6815] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6815] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6817] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6817] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6817] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6817] memfd_create("syzkaller", 0) = 3 [pid 6817] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6813] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6817] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6816] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 6816] munmap(0x7fb71c400000, 138412032 [pid 6813] <... write resumed>) = 16777216 [pid 6816] <... munmap resumed>) = 0 [pid 6816] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6813] munmap(0x7fb71c400000, 138412032 [pid 6817] <... write resumed>) = 16777216 [pid 6816] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6817] munmap(0x7fb71c400000, 138412032 [pid 6816] close(3 [pid 6813] <... munmap resumed>) = 0 [pid 6813] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6813] close(3 [pid 6817] <... munmap resumed>) = 0 [pid 6817] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6817] close(3 [pid 6813] <... close resumed>) = 0 [pid 6813] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6813] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6812] <... futex resumed>) = 0 [pid 6812] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6813] <... futex resumed>) = 0 [pid 6812] <... futex resumed>) = 1 [pid 6813] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6812] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6813] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6813] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6812] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6812] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6813] <... futex resumed>) = 0 [pid 6812] <... futex resumed>) = 1 [pid 6813] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6812] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6813] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6813] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6812] <... futex resumed>) = 0 [pid 6813] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6812] exit_group(0 [pid 6813] <... futex resumed>) = ? [pid 6812] <... exit_group resumed>) = ? [pid 6813] +++ exited with 0 +++ [pid 6812] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6812, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6818 attached , child_tidptr=0x55556c203690) = 6818 [pid 6818] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6818] setpgid(0, 0) = 0 [pid 6818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6818] write(3, "1000", 4) = 4 [pid 6818] close(3executing program ) = 0 [pid 6818] write(1, "executing program\n", 18) = 18 [pid 6818] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6818] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6818] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6818] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6818] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6818] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6818] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6819]}, 88) = 6819 [pid 6818] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6818] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6818] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6819 attached [pid 6819] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6819] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6819] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6819] memfd_create("syzkaller", 0) = 3 [pid 6819] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6816] <... close resumed>) = 0 [pid 6816] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6816] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6814] <... futex resumed>) = 0 [pid 6814] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6816] <... futex resumed>) = 0 [pid 6816] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6814] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6816] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6814] <... futex resumed>) = 0 [pid 6814] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6816] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6814] <... futex resumed>) = 0 [pid 6814] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6817] <... close resumed>) = 0 [pid 6816] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6816] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6816] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6814] <... futex resumed>) = 0 [pid 6814] exit_group(0 [pid 6816] <... futex resumed>) = ? [pid 6814] <... exit_group resumed>) = ? [pid 6817] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6816] +++ exited with 0 +++ [pid 6817] <... futex resumed>) = 1 [pid 6815] <... futex resumed>) = 0 [pid 6814] +++ exited with 0 +++ [pid 6815] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6814, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 6815] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6817] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6817] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6815] <... futex resumed>) = 0 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6817] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6815] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6820 attached [pid 6817] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6815] <... futex resumed>) = 0 [pid 6817] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6815] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6817] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6817] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6815] <... futex resumed>) = 0 [pid 6815] exit_group(0) = ? [pid 6817] <... futex resumed>) = ? [pid 6817] +++ exited with 0 +++ [pid 6815] +++ exited with 0 +++ [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6820 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6815, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=30 /* 0.30 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6820] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6820] <... set_robust_list resumed>) = 0 [pid 6820] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6820] <... prctl resumed>) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6820] setpgid(0, 0./strace-static-x86_64: Process 6821 attached [pid 6819] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6820] <... setpgid resumed>) = 0 [pid 6820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6821] set_robust_list(0x55556c2036a0, 24 [pid 6820] <... openat resumed>) = 3 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6821 [pid 6821] <... set_robust_list resumed>) = 0 [pid 6820] write(3, "1000", 4 [pid 6821] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6820] <... write resumed>) = 4 [pid 6820] close(3 [pid 6821] <... prctl resumed>) = 0 [pid 6820] <... close resumed>) = 0 executing program [pid 6821] setpgid(0, 0 [pid 6820] write(1, "executing program\n", 18) = 18 [pid 6821] <... setpgid resumed>) = 0 [pid 6820] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6820] <... futex resumed>) = 0 [pid 6821] <... openat resumed>) = 3 [pid 6820] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6820] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6821] write(3, "1000", 4 [pid 6820] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6821] <... write resumed>) = 4 [pid 6820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6821] close(3 [pid 6820] <... mmap resumed>) = 0x7fb72495a000 [pid 6821] <... close resumed>) = 0 [pid 6821] write(1, "executing program\n", 18 [pid 6820] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITEexecuting program [pid 6821] <... write resumed>) = 18 [pid 6820] <... mprotect resumed>) = 0 [pid 6821] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6820] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6821] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6820] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6821] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6820] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6821] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 6822 attached [pid 6821] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6820] <... clone3 resumed> => {parent_tid=[6822]}, 88) = 6822 [pid 6822] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6821] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6820] rt_sigprocmask(SIG_SETMASK, [], [pid 6822] <... rseq resumed>) = 0 [pid 6822] set_robust_list(0x7fb72497a9a0, 24 [pid 6821] <... mprotect resumed>) = 0 [pid 6820] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6822] <... set_robust_list resumed>) = 0 [pid 6820] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6822] rt_sigprocmask(SIG_SETMASK, [], [pid 6821] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6820] <... futex resumed>) = 0 [pid 6822] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6820] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6822] memfd_create("syzkaller", 0 [pid 6821] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6821] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6823 attached => {parent_tid=[6823]}, 88) = 6823 [pid 6823] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6822] <... memfd_create resumed>) = 3 [pid 6823] <... rseq resumed>) = 0 [pid 6822] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6821] rt_sigprocmask(SIG_SETMASK, [], [pid 6823] set_robust_list(0x7fb72497a9a0, 24 [pid 6822] <... mmap resumed>) = 0x7fb71c400000 [pid 6821] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6823] <... set_robust_list resumed>) = 0 [pid 6823] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6821] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6823] memfd_create("syzkaller", 0 [pid 6821] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6823] <... memfd_create resumed>) = 3 [pid 6823] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6819] <... write resumed>) = 16777216 [pid 6819] munmap(0x7fb71c400000, 138412032 [pid 6822] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6819] <... munmap resumed>) = 0 [pid 6819] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6823] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6819] close(3) = 0 [pid 6819] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6818] <... futex resumed>) = 0 [pid 6819] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6818] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6819] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6818] <... futex resumed>) = 0 [pid 6819] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6818] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6819] <... futex resumed>) = 0 [pid 6818] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6819] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6818] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6819] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6818] <... futex resumed>) = 0 [pid 6818] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6819] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6818] <... futex resumed>) = 0 [pid 6819] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6818] exit_group(0 [pid 6819] <... futex resumed>) = ? [pid 6818] <... exit_group resumed>) = ? [pid 6819] +++ exited with 0 +++ [pid 6818] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6818, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6824 attached , child_tidptr=0x55556c203690) = 6824 [pid 6822] <... write resumed>) = 16777216 [pid 6824] set_robust_list(0x55556c2036a0, 24 [pid 6822] munmap(0x7fb71c400000, 138412032 [pid 6824] <... set_robust_list resumed>) = 0 [pid 6824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6824] setpgid(0, 0) = 0 [pid 6824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6822] <... munmap resumed>) = 0 [pid 6824] <... openat resumed>) = 3 [pid 6822] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6824] write(3, "1000", 4) = 4 [pid 6824] close(3 [pid 6822] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6824] <... close resumed>) = 0 [pid 6822] close(3 [pid 6824] write(1, "executing program\n", 18executing program ) = 18 [pid 6824] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6824] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6824] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6824] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6824] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6824] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6825 attached => {parent_tid=[6825]}, 88) = 6825 [pid 6824] rt_sigprocmask(SIG_SETMASK, [], [pid 6825] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6824] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6825] <... rseq resumed>) = 0 [pid 6825] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6825] rt_sigprocmask(SIG_SETMASK, [], [pid 6824] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6825] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6824] <... futex resumed>) = 0 [pid 6825] memfd_create("syzkaller", 0 [pid 6824] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6825] <... memfd_create resumed>) = 3 [pid 6825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6823] <... write resumed>) = 16777216 [pid 6823] munmap(0x7fb71c400000, 138412032) = 0 [pid 6823] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6823] close(3 [pid 6822] <... close resumed>) = 0 [pid 6822] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6822] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6820] <... futex resumed>) = 0 [pid 6820] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6822] <... futex resumed>) = 0 [pid 6820] <... futex resumed>) = 1 [pid 6822] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6820] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6822] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6822] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6820] <... futex resumed>) = 0 [pid 6820] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6822] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6820] <... futex resumed>) = 0 [pid 6822] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6820] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6822] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6820] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6822] <... futex resumed>) = 0 [pid 6820] exit_group(0) = ? [pid 6822] +++ exited with 0 +++ [pid 6820] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6820, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6826 attached [pid 6825] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6826 [pid 6826] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6826] setpgid(0, 0) = 0 [pid 6826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6826] write(3, "1000", 4) = 4 [pid 6826] close(3) = 0 [pid 6826] write(1, "executing program\n", 18executing program ) = 18 [pid 6826] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6826] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6826] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6826] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6826] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6826] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6826] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6827 attached [pid 6827] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6827] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6827] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6827] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6826] <... clone3 resumed> => {parent_tid=[6827]}, 88) = 6827 [pid 6826] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6826] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6827] <... futex resumed>) = 0 [pid 6826] <... futex resumed>) = 1 [pid 6827] memfd_create("syzkaller", 0 [pid 6826] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6827] <... memfd_create resumed>) = 3 [pid 6827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6823] <... close resumed>) = 0 [pid 6823] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6821] <... futex resumed>) = 0 [pid 6821] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6821] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6823] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6823] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6821] <... futex resumed>) = 0 [pid 6823] <... futex resumed>) = 1 [pid 6821] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6823] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6821] <... futex resumed>) = 0 [pid 6823] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6823] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6821] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6823] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6821] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6821] exit_group(0 [pid 6823] <... futex resumed>) = ? [pid 6821] <... exit_group resumed>) = ? [pid 6823] +++ exited with 0 +++ [pid 6821] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6821, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6828 attached , child_tidptr=0x55556c203690) = 6828 [pid 6828] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6828] setpgid(0, 0) = 0 [pid 6828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6828] write(3, "1000", 4) = 4 [pid 6828] close(3) = 0 [pid 6828] write(1, "executing program\n", 18executing program ) = 18 [pid 6828] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6828] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6828] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6828] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6828] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6828] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6828] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6829 attached => {parent_tid=[6829]}, 88) = 6829 [pid 6829] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6828] rt_sigprocmask(SIG_SETMASK, [], [pid 6829] <... rseq resumed>) = 0 [pid 6828] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6829] set_robust_list(0x7fb72497a9a0, 24 [pid 6828] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6829] <... set_robust_list resumed>) = 0 [pid 6828] <... futex resumed>) = 0 [pid 6829] rt_sigprocmask(SIG_SETMASK, [], [pid 6828] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6829] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6829] memfd_create("syzkaller", 0) = 3 [pid 6829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6827] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6825] <... write resumed>) = 16777216 [pid 6825] munmap(0x7fb71c400000, 138412032) = 0 [pid 6825] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6825] close(3 [pid 6829] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6827] <... write resumed>) = 16777216 [pid 6827] munmap(0x7fb71c400000, 138412032) = 0 [pid 6827] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6827] close(3 [pid 6825] <... close resumed>) = 0 [pid 6825] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6824] <... futex resumed>) = 0 [pid 6824] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6825] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6824] <... futex resumed>) = 0 [pid 6825] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6824] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6825] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6824] <... futex resumed>) = 0 [pid 6825] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6824] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6825] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6824] <... futex resumed>) = 0 [pid 6824] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6825] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6824] <... futex resumed>) = 0 [pid 6824] exit_group(0) = ? [pid 6825] +++ exited with 0 +++ [pid 6824] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6824, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6830 ./strace-static-x86_64: Process 6830 attached [pid 6830] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6830] setpgid(0, 0) = 0 [pid 6830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6830] write(3, "1000", 4) = 4 [pid 6830] close(3) = 0 [pid 6830] write(1, "executing program\n", 18executing program ) = 18 [pid 6830] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6830] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6830] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6830] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6830] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6830] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6830] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6831 attached => {parent_tid=[6831]}, 88) = 6831 [pid 6831] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6830] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6830] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6830] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6831] <... rseq resumed>) = 0 [pid 6831] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6831] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6831] memfd_create("syzkaller", 0) = 3 [pid 6831] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6829] <... write resumed>) = 16777216 [pid 6829] munmap(0x7fb71c400000, 138412032) = 0 [pid 6827] <... close resumed>) = 0 [pid 6829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6827] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6829] close(3 [pid 6827] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6826] <... futex resumed>) = 0 [pid 6826] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6827] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6826] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6827] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6827] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6827] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6826] <... futex resumed>) = 0 [pid 6826] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6827] <... futex resumed>) = 0 [pid 6826] <... futex resumed>) = 1 [pid 6827] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6826] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6827] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6827] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6827] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6826] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6826] exit_group(0 [pid 6827] <... futex resumed>) = ? [pid 6826] <... exit_group resumed>) = ? [pid 6827] +++ exited with 0 +++ [pid 6826] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6826, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6832 [pid 6831] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 6832 attached [pid 6832] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6832] setpgid(0, 0) = 0 [pid 6832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6832] write(3, "1000", 4) = 4 [pid 6832] close(3) = 0 [pid 6832] write(1, "executing program\n", 18executing program ) = 18 [pid 6832] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6832] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6832] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6832] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6832] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6832] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6832] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6833 attached => {parent_tid=[6833]}, 88) = 6833 [pid 6833] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6832] rt_sigprocmask(SIG_SETMASK, [], [pid 6833] <... rseq resumed>) = 0 [pid 6832] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6833] set_robust_list(0x7fb72497a9a0, 24 [pid 6832] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6833] <... set_robust_list resumed>) = 0 [pid 6833] rt_sigprocmask(SIG_SETMASK, [], [pid 6832] <... futex resumed>) = 0 [pid 6833] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6832] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6833] memfd_create("syzkaller", 0) = 3 [pid 6833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6829] <... close resumed>) = 0 [pid 6829] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6828] <... futex resumed>) = 0 [pid 6829] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6828] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6829] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6828] <... futex resumed>) = 0 [pid 6829] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6828] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6829] <... futex resumed>) = 0 [pid 6828] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6828] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6829] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6828] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6829] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6829] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6828] <... futex resumed>) = 0 [pid 6829] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6828] exit_group(0 [pid 6829] <... futex resumed>) = ? [pid 6828] <... exit_group resumed>) = ? [pid 6829] +++ exited with 0 +++ [pid 6828] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6828, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6834 attached , child_tidptr=0x55556c203690) = 6834 [pid 6834] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6834] setpgid(0, 0) = 0 [pid 6834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6834] write(3, "1000", 4) = 4 [pid 6834] close(3) = 0 [pid 6834] write(1, "executing program\n", 18executing program ) = 18 [pid 6834] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6834] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6834] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6834] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6834] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6834] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6834] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6835 attached => {parent_tid=[6835]}, 88) = 6835 [pid 6834] rt_sigprocmask(SIG_SETMASK, [], [pid 6835] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6834] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6833] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6835] <... rseq resumed>) = 0 [pid 6834] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6834] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6835] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6835] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6835] memfd_create("syzkaller", 0) = 3 [pid 6835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6831] <... write resumed>) = 16777216 [pid 6831] munmap(0x7fb71c400000, 138412032) = 0 [pid 6831] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6831] close(3 [pid 6835] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6833] <... write resumed>) = 16777216 [pid 6831] <... close resumed>) = 0 [pid 6833] munmap(0x7fb71c400000, 138412032 [pid 6831] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6833] <... munmap resumed>) = 0 [pid 6831] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6830] <... futex resumed>) = 0 [pid 6830] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6830] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6831] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6831] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6831] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6830] <... futex resumed>) = 0 [pid 6831] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6830] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6831] <... futex resumed>) = 0 [pid 6830] <... futex resumed>) = 1 [pid 6831] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6830] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6831] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6831] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6830] <... futex resumed>) = 0 [pid 6831] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6830] exit_group(0 [pid 6831] <... futex resumed>) = ? [pid 6830] <... exit_group resumed>) = ? [pid 6831] +++ exited with 0 +++ [pid 6833] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6830] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6830, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 6833] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6833] close(3 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6836 attached [pid 6836] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6836] setpgid(0, 0) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6836 [pid 6836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6836] write(3, "1000", 4) = 4 [pid 6836] close(3) = 0 executing program [pid 6836] write(1, "executing program\n", 18) = 18 [pid 6836] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6836] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6836] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6836] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6836] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6836] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6837 attached [pid 6837] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6836] <... clone3 resumed> => {parent_tid=[6837]}, 88) = 6837 [pid 6837] <... rseq resumed>) = 0 [pid 6836] rt_sigprocmask(SIG_SETMASK, [], [pid 6837] set_robust_list(0x7fb72497a9a0, 24 [pid 6836] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6837] <... set_robust_list resumed>) = 0 [pid 6836] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6837] rt_sigprocmask(SIG_SETMASK, [], [pid 6836] <... futex resumed>) = 0 [pid 6837] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6836] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6837] memfd_create("syzkaller", 0) = 3 [pid 6837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6835] <... write resumed>) = 16777216 [pid 6835] munmap(0x7fb71c400000, 138412032) = 0 [pid 6835] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6835] close(3 [pid 6837] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6833] <... close resumed>) = 0 [pid 6833] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6832] <... futex resumed>) = 0 [pid 6833] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6832] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6833] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6832] <... futex resumed>) = 0 [pid 6833] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6832] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6833] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6833] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6832] <... futex resumed>) = 0 [pid 6832] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6833] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6832] <... futex resumed>) = 0 [pid 6832] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6833] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6833] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6832] <... futex resumed>) = 0 [pid 6833] <... futex resumed>) = 1 [pid 6832] exit_group(0 [pid 6833] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6832] <... exit_group resumed>) = ? [pid 6833] <... futex resumed>) = ? [pid 6833] +++ exited with 0 +++ [pid 6832] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6832, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6838 ./strace-static-x86_64: Process 6838 attached [pid 6838] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6838] setpgid(0, 0) = 0 [pid 6838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6838] write(3, "1000", 4) = 4 [pid 6838] close(3) = 0 executing program [pid 6838] write(1, "executing program\n", 18) = 18 [pid 6838] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6838] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6838] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6838] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6838] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6838] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6839]}, 88) = 6839 [pid 6838] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6838] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6838] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6839 attached [pid 6839] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6839] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6839] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6839] memfd_create("syzkaller", 0) = 3 [pid 6839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6835] <... close resumed>) = 0 [pid 6835] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6835] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6834] <... futex resumed>) = 0 [pid 6834] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6835] <... futex resumed>) = 0 [pid 6834] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6835] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6835] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6834] <... futex resumed>) = 0 [pid 6835] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6834] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6835] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6834] <... futex resumed>) = 0 [pid 6835] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6834] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6835] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6835] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6835] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6834] <... futex resumed>) = 0 [pid 6834] exit_group(0 [pid 6835] <... futex resumed>) = ? [pid 6834] <... exit_group resumed>) = ? [pid 6835] +++ exited with 0 +++ [pid 6834] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6834, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6840 ./strace-static-x86_64: Process 6840 attached [pid 6840] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6840] setpgid(0, 0) = 0 [pid 6840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6840] write(3, "1000", 4) = 4 [pid 6840] close(3) = 0 executing program [pid 6840] write(1, "executing program\n", 18) = 18 [pid 6840] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6840] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6840] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6840] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6840] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6840] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6840] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6841]}, 88) = 6841 ./strace-static-x86_64: Process 6841 attached [pid 6840] rt_sigprocmask(SIG_SETMASK, [], [pid 6841] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6840] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6841] <... rseq resumed>) = 0 [pid 6841] set_robust_list(0x7fb72497a9a0, 24 [pid 6840] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6841] <... set_robust_list resumed>) = 0 [pid 6840] <... futex resumed>) = 0 [pid 6841] rt_sigprocmask(SIG_SETMASK, [], [pid 6840] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6841] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6841] memfd_create("syzkaller", 0) = 3 [pid 6841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6839] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6837] <... write resumed>) = 16777216 [pid 6837] munmap(0x7fb71c400000, 138412032) = 0 [pid 6837] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6837] close(3 [pid 6839] <... write resumed>) = 16777216 [pid 6839] munmap(0x7fb71c400000, 138412032) = 0 [pid 6839] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6839] close(3 [pid 6837] <... close resumed>) = 0 [pid 6837] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6837] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6836] <... futex resumed>) = 0 [pid 6836] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6836] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6837] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6837] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6837] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6836] <... futex resumed>) = 0 [pid 6837] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6836] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6837] <... futex resumed>) = 0 [pid 6836] <... futex resumed>) = 1 [pid 6836] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6837] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6837] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6836] <... futex resumed>) = 0 [pid 6837] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6836] exit_group(0) = ? [pid 6837] <... futex resumed>) = ? [pid 6837] +++ exited with 0 +++ [pid 6836] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6836, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6842 ./strace-static-x86_64: Process 6842 attached [pid 6842] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6842] setpgid(0, 0) = 0 [pid 6842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6842] write(3, "1000", 4) = 4 [pid 6842] close(3executing program ) = 0 [pid 6842] write(1, "executing program\n", 18) = 18 [pid 6842] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6842] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6842] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6842] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6842] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6842] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6843 attached => {parent_tid=[6843]}, 88) = 6843 [pid 6842] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6842] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6843] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6842] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6841] <... write resumed>) = 16777216 [pid 6843] <... rseq resumed>) = 0 [pid 6841] munmap(0x7fb71c400000, 138412032 [pid 6843] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6843] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6843] memfd_create("syzkaller", 0) = 3 [pid 6843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6841] <... munmap resumed>) = 0 [pid 6841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6841] close(3 [pid 6839] <... close resumed>) = 0 [pid 6839] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6838] <... futex resumed>) = 0 [pid 6839] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6838] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6839] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6838] <... futex resumed>) = 0 [pid 6839] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6838] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6839] <... futex resumed>) = 0 [pid 6838] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6838] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6839] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6838] <... futex resumed>) = 0 [pid 6839] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6838] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6839] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6838] <... futex resumed>) = 0 [pid 6839] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6838] exit_group(0 [pid 6839] <... futex resumed>) = ? [pid 6838] <... exit_group resumed>) = ? [pid 6839] +++ exited with 0 +++ [pid 6838] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6838, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6844 attached , child_tidptr=0x55556c203690) = 6844 [pid 6844] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6844] setpgid(0, 0) = 0 [pid 6844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6844] write(3, "1000", 4) = 4 [pid 6844] close(3) = 0 [pid 6844] write(1, "executing program\n", 18executing program [pid 6843] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6844] <... write resumed>) = 18 [pid 6844] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6844] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6844] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6844] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6844] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6844] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6844] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6845 attached => {parent_tid=[6845]}, 88) = 6845 [pid 6844] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6844] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6844] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6845] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6845] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6845] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6845] memfd_create("syzkaller", 0) = 3 [pid 6845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6841] <... close resumed>) = 0 [pid 6841] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6840] <... futex resumed>) = 0 [pid 6840] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6840] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6841] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6841] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6840] <... futex resumed>) = 0 [pid 6840] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6840] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6841] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6841] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6840] <... futex resumed>) = 0 [pid 6840] exit_group(0) = ? [pid 6841] +++ exited with 0 +++ [pid 6840] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6840, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6846 [pid 6845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 6846 attached [pid 6846] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6846] setpgid(0, 0) = 0 [pid 6846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6846] write(3, "1000", 4) = 4 [pid 6846] close(3) = 0 executing program [pid 6846] write(1, "executing program\n", 18) = 18 [pid 6846] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6846] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6846] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6846] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6846] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6846] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6846] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6847 attached [pid 6847] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6846] <... clone3 resumed> => {parent_tid=[6847]}, 88) = 6847 [pid 6847] set_robust_list(0x7fb72497a9a0, 24 [pid 6846] rt_sigprocmask(SIG_SETMASK, [], [pid 6847] <... set_robust_list resumed>) = 0 [pid 6846] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6847] rt_sigprocmask(SIG_SETMASK, [], [pid 6846] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6847] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6846] <... futex resumed>) = 0 [pid 6847] memfd_create("syzkaller", 0 [pid 6846] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6847] <... memfd_create resumed>) = 3 [pid 6847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6843] <... write resumed>) = 16777216 [pid 6847] <... mmap resumed>) = 0x7fb71c400000 [pid 6843] munmap(0x7fb71c400000, 138412032) = 0 [pid 6843] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6843] close(3 [pid 6847] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6843] <... close resumed>) = 0 [pid 6843] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6842] <... futex resumed>) = 0 [pid 6843] <... futex resumed>) = 1 [pid 6842] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6842] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6843] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6843] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6842] <... futex resumed>) = 0 [pid 6842] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6842] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6843] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6843] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6843] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6842] <... futex resumed>) = 0 [pid 6842] exit_group(0 [pid 6843] <... futex resumed>) = ? [pid 6842] <... exit_group resumed>) = ? [pid 6843] +++ exited with 0 +++ [pid 6842] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6842, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6848 ./strace-static-x86_64: Process 6848 attached [pid 6845] <... write resumed>) = 16777216 [pid 6848] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6848] setpgid(0, 0) = 0 [pid 6848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6848] write(3, "1000", 4) = 4 [pid 6848] close(3) = 0 [pid 6848] write(1, "executing program\n", 18executing program ) = 18 [pid 6848] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6848] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6845] munmap(0x7fb71c400000, 138412032 [pid 6848] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6848] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6845] <... munmap resumed>) = 0 [pid 6848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6848] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6848] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6845] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6848] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6849 attached [pid 6845] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6849] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6848] <... clone3 resumed> => {parent_tid=[6849]}, 88) = 6849 [pid 6845] close(3 [pid 6849] <... rseq resumed>) = 0 [pid 6848] rt_sigprocmask(SIG_SETMASK, [], [pid 6849] set_robust_list(0x7fb72497a9a0, 24 [pid 6848] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6849] <... set_robust_list resumed>) = 0 [pid 6848] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6849] rt_sigprocmask(SIG_SETMASK, [], [pid 6848] <... futex resumed>) = 0 [pid 6849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6848] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6849] memfd_create("syzkaller", 0) = 3 [pid 6849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6847] <... write resumed>) = 16777216 [pid 6847] munmap(0x7fb71c400000, 138412032) = 0 [pid 6847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6847] close(3 [pid 6849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6845] <... close resumed>) = 0 [pid 6845] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6844] <... futex resumed>) = 0 [pid 6845] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6844] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6845] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6844] <... futex resumed>) = 0 [pid 6845] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6844] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6845] <... futex resumed>) = 0 [pid 6844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6844] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6845] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6844] <... futex resumed>) = 0 [pid 6845] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6844] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6845] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6844] <... futex resumed>) = 0 [pid 6845] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6844] exit_group(0 [pid 6845] <... futex resumed>) = ? [pid 6844] <... exit_group resumed>) = ? [pid 6845] +++ exited with 0 +++ [pid 6844] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6844, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6850 attached , child_tidptr=0x55556c203690) = 6850 [pid 6850] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6850] setpgid(0, 0) = 0 [pid 6850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6850] write(3, "1000", 4) = 4 [pid 6850] close(3executing program ) = 0 [pid 6850] write(1, "executing program\n", 18) = 18 [pid 6850] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6850] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6850] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6850] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6850] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6850] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6850] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6851 attached [pid 6851] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6850] <... clone3 resumed> => {parent_tid=[6851]}, 88) = 6851 [pid 6851] <... rseq resumed>) = 0 [pid 6850] rt_sigprocmask(SIG_SETMASK, [], [pid 6851] set_robust_list(0x7fb72497a9a0, 24 [pid 6850] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6851] <... set_robust_list resumed>) = 0 [pid 6850] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6851] rt_sigprocmask(SIG_SETMASK, [], [pid 6850] <... futex resumed>) = 0 [pid 6851] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6850] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6851] memfd_create("syzkaller", 0) = 3 [pid 6851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6847] <... close resumed>) = 0 [pid 6847] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6846] <... futex resumed>) = 0 [pid 6847] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6846] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6846] <... futex resumed>) = 0 [pid 6847] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6846] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6847] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6847] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6846] <... futex resumed>) = 0 [pid 6847] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6846] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6846] <... futex resumed>) = 0 [pid 6847] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6846] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6847] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6847] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6846] <... futex resumed>) = 0 [pid 6847] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6846] exit_group(0) = ? [pid 6847] <... futex resumed>) = ? [pid 6847] +++ exited with 0 +++ [pid 6846] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6846, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=29 /* 0.29 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6852 attached , child_tidptr=0x55556c203690) = 6852 [pid 6852] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6852] setpgid(0, 0) = 0 [pid 6852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6852] write(3, "1000", 4) = 4 [pid 6852] close(3executing program ) = 0 [pid 6852] write(1, "executing program\n", 18) = 18 [pid 6852] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6852] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6852] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6852] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6852] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6852] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6853 attached [pid 6853] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6852] <... clone3 resumed> => {parent_tid=[6853]}, 88) = 6853 [pid 6853] <... rseq resumed>) = 0 [pid 6852] rt_sigprocmask(SIG_SETMASK, [], [pid 6853] set_robust_list(0x7fb72497a9a0, 24 [pid 6852] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6853] <... set_robust_list resumed>) = 0 [pid 6852] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6853] rt_sigprocmask(SIG_SETMASK, [], [pid 6852] <... futex resumed>) = 0 [pid 6853] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6852] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6853] memfd_create("syzkaller", 0) = 3 [pid 6853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6851] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6849] <... write resumed>) = 16777216 [pid 6849] munmap(0x7fb71c400000, 138412032) = 0 [pid 6853] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6849] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6849] close(3) = 0 [pid 6849] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6848] <... futex resumed>) = 0 [pid 6849] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6848] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6849] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6848] <... futex resumed>) = 0 [pid 6849] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6848] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6849] <... futex resumed>) = 0 [pid 6848] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6849] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6848] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6849] <... futex resumed>) = 0 [pid 6848] <... futex resumed>) = 1 [pid 6849] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6848] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6849] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6849] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6849] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6848] <... futex resumed>) = 0 [pid 6848] exit_group(0 [pid 6849] <... futex resumed>) = ? [pid 6848] <... exit_group resumed>) = ? [pid 6849] +++ exited with 0 +++ [pid 6848] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6848, si_uid=0, si_status=0, si_utime=0, si_stime=41 /* 0.41 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6854 attached , child_tidptr=0x55556c203690) = 6854 [pid 6854] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6854] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6851] <... write resumed>) = 16777216 [pid 6854] <... prctl resumed>) = 0 [pid 6853] <... write resumed>) = 16777216 [pid 6854] setpgid(0, 0 [pid 6853] munmap(0x7fb71c400000, 138412032 [pid 6851] munmap(0x7fb71c400000, 138412032 [pid 6854] <... setpgid resumed>) = 0 [pid 6854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6854] write(3, "1000", 4) = 4 [pid 6854] close(3) = 0 [pid 6854] write(1, "executing program\n", 18) = 18 [pid 6854] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6854] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6854] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6854] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6854] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6854] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6854] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6855 attached [pid 6853] <... munmap resumed>) = 0 [pid 6855] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6854] <... clone3 resumed> => {parent_tid=[6855]}, 88) = 6855 [pid 6851] <... munmap resumed>) = 0 [pid 6855] <... rseq resumed>) = 0 [pid 6854] rt_sigprocmask(SIG_SETMASK, [], [pid 6855] set_robust_list(0x7fb72497a9a0, 24 [pid 6854] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6851] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6855] <... set_robust_list resumed>) = 0 [pid 6854] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6853] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6855] rt_sigprocmask(SIG_SETMASK, [], [pid 6854] <... futex resumed>) = 0 [pid 6851] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6855] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6854] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6853] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6851] close(3 [pid 6855] memfd_create("syzkaller", 0 [pid 6853] close(3 [pid 6855] <... memfd_create resumed>) = 3 [pid 6855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6855] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6853] <... close resumed>) = 0 [pid 6853] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6852] <... futex resumed>) = 0 [pid 6853] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6852] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6852] <... futex resumed>) = 0 [pid 6853] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6852] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6853] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6853] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6852] <... futex resumed>) = 0 [pid 6853] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6852] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6852] <... futex resumed>) = 0 [pid 6852] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6853] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6853] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6852] <... futex resumed>) = 0 [pid 6852] exit_group(0 [pid 6853] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6852] <... exit_group resumed>) = ? [pid 6853] <... futex resumed>) = ? [pid 6853] +++ exited with 0 +++ [pid 6852] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6852, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6856 attached , child_tidptr=0x55556c203690) = 6856 [pid 6856] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6856] setpgid(0, 0) = 0 [pid 6856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6851] <... close resumed>) = 0 [pid 6856] <... openat resumed>) = 3 [pid 6856] write(3, "1000", 4 [pid 6851] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6856] <... write resumed>) = 4 [pid 6851] <... futex resumed>) = 1 [pid 6850] <... futex resumed>) = 0 [pid 6856] close(3 [pid 6851] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6850] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6856] <... close resumed>) = 0 [pid 6851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6850] <... futex resumed>) = 0 executing program [pid 6856] write(1, "executing program\n", 18 [pid 6851] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6850] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6856] <... write resumed>) = 18 [pid 6851] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6856] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6856] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6851] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6856] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6851] <... futex resumed>) = 1 [pid 6850] <... futex resumed>) = 0 [pid 6856] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6851] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6850] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6856] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6850] <... futex resumed>) = 0 [pid 6856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6851] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6850] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6856] <... mmap resumed>) = 0x7fb72495a000 [pid 6851] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6856] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6851] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6856] <... mprotect resumed>) = 0 [pid 6851] <... futex resumed>) = 1 [pid 6850] <... futex resumed>) = 0 [pid 6856] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6851] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6850] exit_group(0 [pid 6856] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6851] <... futex resumed>) = ? [pid 6850] <... exit_group resumed>) = ? [pid 6856] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6851] +++ exited with 0 +++ [pid 6850] +++ exited with 0 +++ ./strace-static-x86_64: Process 6857 attached [pid 6856] <... clone3 resumed> => {parent_tid=[6857]}, 88) = 6857 [pid 6856] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6850, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 6856] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6857] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6856] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6857] <... rseq resumed>) = 0 [pid 6857] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6857] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 6858 attached [pid 6857] memfd_create("syzkaller", 0) = 3 [pid 6858] set_robust_list(0x55556c2036a0, 24 [pid 6857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6858] <... set_robust_list resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6858 [pid 6858] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6857] <... mmap resumed>) = 0x7fb71c400000 [pid 6858] <... prctl resumed>) = 0 [pid 6858] setpgid(0, 0) = 0 [pid 6858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6858] write(3, "1000", 4) = 4 [pid 6858] close(3) = 0 executing program [pid 6858] write(1, "executing program\n", 18) = 18 [pid 6858] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6858] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6858] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6858] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6858] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6858] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6859 attached [pid 6859] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6858] <... clone3 resumed> => {parent_tid=[6859]}, 88) = 6859 [pid 6859] <... rseq resumed>) = 0 [pid 6859] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6859] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6859] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6858] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6858] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6859] <... futex resumed>) = 0 [pid 6858] <... futex resumed>) = 1 [pid 6859] memfd_create("syzkaller", 0 [pid 6858] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6859] <... memfd_create resumed>) = 3 [pid 6859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6857] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6855] <... write resumed>) = 16777216 [pid 6855] munmap(0x7fb71c400000, 138412032) = 0 [pid 6855] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6855] close(3 [pid 6857] <... write resumed>) = 16777216 [pid 6857] munmap(0x7fb71c400000, 138412032) = 0 [pid 6857] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6857] close(3 [pid 6859] <... write resumed>) = 16777216 [pid 6859] munmap(0x7fb71c400000, 138412032) = 0 [pid 6859] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6859] close(3 [pid 6855] <... close resumed>) = 0 [pid 6855] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6854] <... futex resumed>) = 0 [pid 6855] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6854] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6855] <... futex resumed>) = 0 [pid 6854] <... futex resumed>) = 1 [pid 6855] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6854] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6855] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6855] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6854] <... futex resumed>) = 0 [pid 6854] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6855] <... futex resumed>) = 0 [pid 6854] <... futex resumed>) = 1 [pid 6855] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6854] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6855] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6855] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6854] <... futex resumed>) = 0 [pid 6855] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6854] exit_group(0 [pid 6855] <... futex resumed>) = ? [pid 6854] <... exit_group resumed>) = ? [pid 6855] +++ exited with 0 +++ [pid 6854] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6854, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6860 ./strace-static-x86_64: Process 6860 attached [pid 6860] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6860] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6857] <... close resumed>) = 0 [pid 6860] <... prctl resumed>) = 0 [pid 6860] setpgid(0, 0 [pid 6857] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6860] <... setpgid resumed>) = 0 [pid 6857] <... futex resumed>) = 1 [pid 6856] <... futex resumed>) = 0 [pid 6860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6857] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6856] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6860] <... openat resumed>) = 3 [pid 6857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6856] <... futex resumed>) = 0 [pid 6856] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6860] write(3, "1000", 4) = 4 [pid 6857] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6857] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6856] <... futex resumed>) = 0 [pid 6860] close(3 [pid 6857] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6856] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6860] <... close resumed>) = 0 [pid 6857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 6856] <... futex resumed>) = 0 [pid 6860] write(1, "executing program\n", 18 [pid 6857] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6856] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6860] <... write resumed>) = 18 [pid 6860] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6857] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6860] <... futex resumed>) = 0 [pid 6860] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6857] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6860] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6857] <... futex resumed>) = 1 [pid 6856] <... futex resumed>) = 0 [pid 6860] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6857] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6860] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6856] exit_group(0 [pid 6860] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6856] <... exit_group resumed>) = ? [pid 6857] <... futex resumed>) = ? [pid 6860] <... mmap resumed>) = 0x7fb72495a000 [pid 6860] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6860] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6857] +++ exited with 0 +++ [pid 6856] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6856, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6860] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6860] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6861 attached => {parent_tid=[6861]}, 88) = 6861 [pid 6860] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6860] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6860] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6861] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6859] <... close resumed>) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6861] <... rseq resumed>) = 0 [pid 6859] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6861] set_robust_list(0x7fb72497a9a0, 24 [pid 6859] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6858] <... futex resumed>) = 0 [pid 6861] <... set_robust_list resumed>) = 0 [pid 6858] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6862 attached [pid 6861] rt_sigprocmask(SIG_SETMASK, [], [pid 6859] <... futex resumed>) = 0 [pid 6858] <... futex resumed>) = 1 [pid 6861] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6859] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6858] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6862] set_robust_list(0x55556c2036a0, 24 [pid 6861] memfd_create("syzkaller", 0 [pid 6859] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6862 [pid 6862] <... set_robust_list resumed>) = 0 [pid 6859] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6858] <... futex resumed>) = 0 [pid 6858] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6862] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6858] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6862] <... prctl resumed>) = 0 [pid 6859] <... futex resumed>) = 1 [pid 6861] <... memfd_create resumed>) = 3 [pid 6862] setpgid(0, 0 [pid 6859] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6862] <... setpgid resumed>) = 0 [pid 6861] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6859] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6861] <... mmap resumed>) = 0x7fb71c400000 [pid 6862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6859] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6862] <... openat resumed>) = 3 [pid 6859] <... futex resumed>) = 1 [pid 6858] <... futex resumed>) = 0 [pid 6862] write(3, "1000", 4 [pid 6859] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6858] exit_group(0 [pid 6862] <... write resumed>) = 4 [pid 6859] <... futex resumed>) = ? [pid 6858] <... exit_group resumed>) = ? [pid 6862] close(3 [pid 6859] +++ exited with 0 +++ [pid 6858] +++ exited with 0 +++ [pid 6862] <... close resumed>) = 0 executing program [pid 6862] write(1, "executing program\n", 18) = 18 [pid 6862] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6862] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6858, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 6862] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6862] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6862] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6862] <... mmap resumed>) = 0x7fb72495a000 [pid 6862] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6862] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6862] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6862] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6863 attached ./strace-static-x86_64: Process 6864 attached [pid 6863] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6862] <... clone3 resumed> => {parent_tid=[6863]}, 88) = 6863 [pid 6863] <... rseq resumed>) = 0 [pid 6862] rt_sigprocmask(SIG_SETMASK, [], [pid 6863] set_robust_list(0x7fb72497a9a0, 24 [pid 6862] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6863] <... set_robust_list resumed>) = 0 [pid 6862] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6863] rt_sigprocmask(SIG_SETMASK, [], [pid 6862] <... futex resumed>) = 0 [pid 6863] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6862] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6863] memfd_create("syzkaller", 0 [pid 6864] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6864 [pid 6864] <... set_robust_list resumed>) = 0 [pid 6863] <... memfd_create resumed>) = 3 [pid 6864] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6863] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6864] <... prctl resumed>) = 0 [pid 6863] <... mmap resumed>) = 0x7fb71c400000 [pid 6864] setpgid(0, 0) = 0 [pid 6864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6864] write(3, "1000", 4) = 4 [pid 6864] close(3) = 0 executing program [pid 6864] write(1, "executing program\n", 18 [pid 6861] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6864] <... write resumed>) = 18 [pid 6864] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6864] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6864] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6864] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6864] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6864] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6864] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6865 attached => {parent_tid=[6865]}, 88) = 6865 [pid 6865] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6864] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6864] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6864] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6865] <... rseq resumed>) = 0 [pid 6865] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6865] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6865] memfd_create("syzkaller", 0) = 3 [pid 6865] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6863] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6865] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6861] <... write resumed>) = 16777216 [pid 6861] munmap(0x7fb71c400000, 138412032) = 0 [pid 6861] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6861] close(3 [pid 6863] <... write resumed>) = 16777216 [pid 6861] <... close resumed>) = 0 [pid 6861] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6861] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6863] munmap(0x7fb71c400000, 138412032 [pid 6860] <... futex resumed>) = 0 [pid 6860] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6861] <... futex resumed>) = 0 [pid 6860] <... futex resumed>) = 1 [pid 6861] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6860] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6863] <... munmap resumed>) = 0 [pid 6861] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6863] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6861] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6863] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6861] <... futex resumed>) = 1 [pid 6860] <... futex resumed>) = 0 [pid 6861] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6860] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6863] close(3 [pid 6861] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6860] <... futex resumed>) = 0 [pid 6865] <... write resumed>) = 16777216 [pid 6861] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6865] munmap(0x7fb71c400000, 138412032 [pid 6861] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6860] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6861] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6860] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6861] <... futex resumed>) = 0 [pid 6860] exit_group(0) = ? [pid 6861] +++ exited with 0 +++ [pid 6860] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6860, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6866 attached [pid 6865] <... munmap resumed>) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6866 [pid 6866] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6866] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6865] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6866] <... prctl resumed>) = 0 [pid 6866] setpgid(0, 0 [pid 6865] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6866] <... setpgid resumed>) = 0 [pid 6866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6865] close(3 [pid 6866] <... openat resumed>) = 3 executing program [pid 6866] write(3, "1000", 4) = 4 [pid 6866] close(3) = 0 [pid 6866] write(1, "executing program\n", 18) = 18 [pid 6866] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6866] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6866] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6866] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6867 attached => {parent_tid=[6867]}, 88) = 6867 [pid 6866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6866] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6866] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6867] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6867] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6867] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6867] memfd_create("syzkaller", 0) = 3 [pid 6867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6865] <... close resumed>) = 0 [pid 6865] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6864] <... futex resumed>) = 0 [pid 6865] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6864] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6865] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6864] <... futex resumed>) = 0 [pid 6865] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6864] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6865] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6865] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6864] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6865] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6864] <... futex resumed>) = 0 [pid 6865] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6864] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6865] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6865] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6864] exit_group(0 [pid 6865] <... futex resumed>) = ? [pid 6864] <... exit_group resumed>) = ? [pid 6865] +++ exited with 0 +++ [pid 6863] <... close resumed>) = 0 [pid 6863] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6864] +++ exited with 0 +++ [pid 6862] <... futex resumed>) = 0 [pid 6863] <... futex resumed>) = 1 [pid 6862] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6863] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6862] <... futex resumed>) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6864, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 6867] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6863] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6862] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6863] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6862] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6863] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6862] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6863] <... futex resumed>) = 0 [pid 6862] <... futex resumed>) = 1 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6863] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6862] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6863] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6862] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6863] <... futex resumed>) = 0 [pid 6862] exit_group(0 [pid 6863] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 6862] <... exit_group resumed>) = ? [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6863] +++ exited with 0 +++ [pid 6862] +++ exited with 0 +++ ./strace-static-x86_64: Process 6868 attached [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6862, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 6868] set_robust_list(0x55556c2036a0, 24 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6868] <... set_robust_list resumed>) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6868] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6869 attached [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6868 [pid 6868] <... prctl resumed>) = 0 [pid 6868] setpgid(0, 0) = 0 [pid 6868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6869] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6868] <... openat resumed>) = 3 [pid 6869] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6869 [pid 6869] <... prctl resumed>) = 0 [pid 6868] write(3, "1000", 4 [pid 6869] setpgid(0, 0) = 0 [pid 6868] <... write resumed>) = 4 [pid 6869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6868] close(3 [pid 6869] <... openat resumed>) = 3 [pid 6868] <... close resumed>) = 0 [pid 6869] write(3, "1000", 4executing program ) = 4 [pid 6868] write(1, "executing program\n", 18executing program [pid 6869] close(3 [pid 6868] <... write resumed>) = 18 [pid 6869] <... close resumed>) = 0 [pid 6868] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6869] write(1, "executing program\n", 18) = 18 [pid 6868] <... futex resumed>) = 0 [pid 6869] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6868] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6869] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6868] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6869] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6868] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6869] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6868] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6869] <... mmap resumed>) = 0x7fb72495a000 [pid 6868] <... mmap resumed>) = 0x7fb72495a000 [pid 6869] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6868] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6868] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6869] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6868] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6869] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6868] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6870 attached [pid 6869] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6871 attached [pid 6870] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6871] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6870] set_robust_list(0x7fb72497a9a0, 24 [pid 6871] <... rseq resumed>) = 0 [pid 6870] <... set_robust_list resumed>) = 0 [pid 6868] <... clone3 resumed> => {parent_tid=[6870]}, 88) = 6870 [pid 6871] set_robust_list(0x7fb72497a9a0, 24 [pid 6870] rt_sigprocmask(SIG_SETMASK, [], [pid 6869] <... clone3 resumed> => {parent_tid=[6871]}, 88) = 6871 [pid 6868] rt_sigprocmask(SIG_SETMASK, [], [pid 6871] <... set_robust_list resumed>) = 0 [pid 6870] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6871] rt_sigprocmask(SIG_SETMASK, [], [pid 6870] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6871] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6871] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6869] rt_sigprocmask(SIG_SETMASK, [], [pid 6868] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6869] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6868] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6870] <... futex resumed>) = 0 [pid 6869] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6868] <... futex resumed>) = 1 [pid 6869] <... futex resumed>) = 1 [pid 6868] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6871] <... futex resumed>) = 0 [pid 6870] memfd_create("syzkaller", 0 [pid 6869] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6871] memfd_create("syzkaller", 0 [pid 6870] <... memfd_create resumed>) = 3 [pid 6870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6871] <... memfd_create resumed>) = 3 [pid 6870] <... mmap resumed>) = 0x7fb71c400000 [pid 6871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6870] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6867] <... write resumed>) = 16777216 [pid 6867] munmap(0x7fb71c400000, 138412032) = 0 [pid 6867] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6867] close(3 [pid 6871] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6870] <... write resumed>) = 16777216 [pid 6870] munmap(0x7fb71c400000, 138412032) = 0 [pid 6870] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6870] close(3 [pid 6867] <... close resumed>) = 0 [pid 6867] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6866] <... futex resumed>) = 0 [pid 6867] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6866] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6867] <... futex resumed>) = 0 [pid 6866] <... futex resumed>) = 1 [pid 6867] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6866] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6867] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6866] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6867] <... futex resumed>) = 0 [pid 6866] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6867] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6866] <... futex resumed>) = 0 [pid 6867] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6866] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6867] <... futex resumed>) = 0 [pid 6866] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6867] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6866] exit_group(0 [pid 6867] <... futex resumed>) = ? [pid 6866] <... exit_group resumed>) = ? [pid 6867] +++ exited with 0 +++ [pid 6866] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6866, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6872 ./strace-static-x86_64: Process 6872 attached [pid 6872] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6872] setpgid(0, 0) = 0 [pid 6872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6872] write(3, "1000", 4) = 4 executing program [pid 6872] close(3) = 0 [pid 6872] write(1, "executing program\n", 18) = 18 [pid 6872] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6872] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6872] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6872] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6872] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6872] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6872] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6873 attached => {parent_tid=[6873]}, 88) = 6873 [pid 6872] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6873] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6872] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6872] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6873] <... rseq resumed>) = 0 [pid 6873] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6873] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6873] memfd_create("syzkaller", 0) = 3 [pid 6873] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6871] <... write resumed>) = 16777216 [pid 6871] munmap(0x7fb71c400000, 138412032 [pid 6870] <... close resumed>) = 0 [pid 6870] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6868] <... futex resumed>) = 0 [pid 6870] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6868] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6868] <... futex resumed>) = 0 [pid 6870] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6868] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6871] <... munmap resumed>) = 0 [pid 6870] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6870] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6868] <... futex resumed>) = 0 [pid 6870] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6868] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6868] <... futex resumed>) = 0 [pid 6870] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6868] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6870] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6870] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6871] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6868] <... futex resumed>) = 0 [pid 6870] <... futex resumed>) = 1 [pid 6868] exit_group(0) = ? [pid 6871] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6871] close(3 [pid 6870] +++ exited with 0 +++ [pid 6868] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6868, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6874 attached [pid 6873] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6874 [pid 6874] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6874] setpgid(0, 0) = 0 [pid 6874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6874] write(3, "1000", 4) = 4 [pid 6874] close(3executing program ) = 0 [pid 6874] write(1, "executing program\n", 18) = 18 [pid 6874] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6874] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6874] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6874] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6874] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6875 attached [pid 6875] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6874] <... clone3 resumed> => {parent_tid=[6875]}, 88) = 6875 [pid 6875] <... rseq resumed>) = 0 [pid 6875] set_robust_list(0x7fb72497a9a0, 24 [pid 6874] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6875] <... set_robust_list resumed>) = 0 [pid 6875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6874] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6874] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6875] memfd_create("syzkaller", 0) = 3 [pid 6875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6871] <... close resumed>) = 0 [pid 6871] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6871] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6869] <... futex resumed>) = 0 [pid 6869] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6871] <... futex resumed>) = 0 [pid 6869] <... futex resumed>) = 1 [pid 6871] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6869] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6871] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6869] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6871] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6869] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6871] <... futex resumed>) = 0 [pid 6869] <... futex resumed>) = 1 [pid 6871] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6869] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6871] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6871] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6869] <... futex resumed>) = 0 [pid 6871] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6869] exit_group(0 [pid 6871] <... futex resumed>) = ? [pid 6869] <... exit_group resumed>) = ? [pid 6871] +++ exited with 0 +++ [pid 6869] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6869, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6873] <... write resumed>) = 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6873] munmap(0x7fb71c400000, 138412032 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6876 attached , child_tidptr=0x55556c203690) = 6876 [pid 6873] <... munmap resumed>) = 0 [pid 6876] set_robust_list(0x55556c2036a0, 24 [pid 6873] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6876] <... set_robust_list resumed>) = 0 [pid 6873] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6876] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6873] close(3 [pid 6876] <... prctl resumed>) = 0 [pid 6876] setpgid(0, 0) = 0 [pid 6876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6876] write(3, "1000", 4) = 4 [pid 6876] close(3) = 0 [pid 6876] write(1, "executing program\n", 18) = 18 [pid 6876] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6876] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6876] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6876] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6876] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6876] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6877 attached [pid 6877] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6876] <... clone3 resumed> => {parent_tid=[6877]}, 88) = 6877 [pid 6877] <... rseq resumed>) = 0 [pid 6876] rt_sigprocmask(SIG_SETMASK, [], [pid 6877] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6877] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6877] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6876] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6876] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6877] <... futex resumed>) = 0 [pid 6876] <... futex resumed>) = 1 [pid 6876] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6877] memfd_create("syzkaller", 0) = 3 [pid 6877] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6875] <... write resumed>) = 16777216 [pid 6873] <... close resumed>) = 0 [pid 6877] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6875] munmap(0x7fb71c400000, 138412032 [pid 6873] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6873] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6872] <... futex resumed>) = 0 [pid 6873] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6872] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6873] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6872] <... futex resumed>) = 0 [pid 6873] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6872] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6873] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6872] <... futex resumed>) = 0 [pid 6873] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6872] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6873] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6872] <... futex resumed>) = 0 [pid 6873] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6872] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6873] <... futex resumed>) = 0 [pid 6872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6873] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6872] exit_group(0 [pid 6873] <... futex resumed>) = ? [pid 6872] <... exit_group resumed>) = ? [pid 6873] +++ exited with 0 +++ [pid 6872] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6872, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6878 attached , child_tidptr=0x55556c203690) = 6878 [pid 6878] set_robust_list(0x55556c2036a0, 24 [pid 6875] <... munmap resumed>) = 0 [pid 6878] <... set_robust_list resumed>) = 0 [pid 6875] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6878] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6875] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6878] <... prctl resumed>) = 0 [pid 6878] setpgid(0, 0) = 0 [pid 6875] close(3 [pid 6878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6878] write(3, "1000", 4) = 4 [pid 6878] close(3) = 0 [pid 6878] write(1, "executing program\n", 18) = 18 [pid 6878] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6878] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6878] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6878] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6878] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6878] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6879 attached [pid 6879] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6878] <... clone3 resumed> => {parent_tid=[6879]}, 88) = 6879 [pid 6878] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6878] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6878] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6879] <... rseq resumed>) = 0 [pid 6879] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6879] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6879] memfd_create("syzkaller", 0) = 3 [pid 6879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6875] <... close resumed>) = 0 [pid 6875] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6874] <... futex resumed>) = 0 [pid 6874] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6874] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6875] <... futex resumed>) = 1 [pid 6877] <... write resumed>) = 16777216 [pid 6877] munmap(0x7fb71c400000, 138412032 [pid 6875] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6875] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6874] <... futex resumed>) = 0 [pid 6875] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6874] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6874] <... futex resumed>) = 0 [pid 6875] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6874] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6875] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6875] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6874] <... futex resumed>) = 0 [pid 6875] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6874] exit_group(0 [pid 6875] <... futex resumed>) = ? [pid 6874] <... exit_group resumed>) = ? [pid 6879] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6875] +++ exited with 0 +++ [pid 6874] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6874, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6877] <... munmap resumed>) = 0 [pid 6877] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6877] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6880 attached [pid 6877] close(3 [pid 6880] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6880 [pid 6880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6880] setpgid(0, 0) = 0 [pid 6880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6880] write(3, "1000", 4) = 4 executing program [pid 6880] close(3) = 0 [pid 6880] write(1, "executing program\n", 18) = 18 [pid 6880] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6880] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6880] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6880] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6880] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6880] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6880] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6881 attached [pid 6881] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6880] <... clone3 resumed> => {parent_tid=[6881]}, 88) = 6881 [pid 6881] <... rseq resumed>) = 0 [pid 6880] rt_sigprocmask(SIG_SETMASK, [], [pid 6881] set_robust_list(0x7fb72497a9a0, 24 [pid 6880] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6881] <... set_robust_list resumed>) = 0 [pid 6880] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6881] rt_sigprocmask(SIG_SETMASK, [], [pid 6880] <... futex resumed>) = 0 [pid 6881] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6880] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6881] memfd_create("syzkaller", 0) = 3 [pid 6881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6881] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6877] <... close resumed>) = 0 [pid 6877] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6877] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6876] <... futex resumed>) = 0 [pid 6876] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6876] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6877] <... futex resumed>) = 0 [pid 6877] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6877] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6876] <... futex resumed>) = 0 [pid 6877] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6876] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6877] <... futex resumed>) = 0 [pid 6876] <... futex resumed>) = 1 [pid 6877] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6876] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6877] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6877] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6876] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6877] <... futex resumed>) = 0 [pid 6877] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6876] exit_group(0) = ? [pid 6877] <... futex resumed>) = ? [pid 6877] +++ exited with 0 +++ [pid 6876] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6876, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6882 attached , child_tidptr=0x55556c203690) = 6882 [pid 6882] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6882] setpgid(0, 0) = 0 [pid 6882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6882] write(3, "1000", 4) = 4 [pid 6882] close(3executing program ) = 0 [pid 6882] write(1, "executing program\n", 18) = 18 [pid 6882] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6882] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6882] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6882] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6882] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6882] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6883 attached => {parent_tid=[6883]}, 88) = 6883 [pid 6883] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6879] <... write resumed>) = 16777216 [pid 6882] rt_sigprocmask(SIG_SETMASK, [], [pid 6883] <... rseq resumed>) = 0 [pid 6882] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6879] munmap(0x7fb71c400000, 138412032 [pid 6883] set_robust_list(0x7fb72497a9a0, 24 [pid 6882] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6882] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6883] <... set_robust_list resumed>) = 0 [pid 6883] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6883] memfd_create("syzkaller", 0) = 3 [pid 6883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6879] <... munmap resumed>) = 0 [pid 6879] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6879] close(3 [pid 6881] <... write resumed>) = 16777216 [pid 6881] munmap(0x7fb71c400000, 138412032 [pid 6883] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6881] <... munmap resumed>) = 0 [pid 6881] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6881] close(3 [pid 6879] <... close resumed>) = 0 [pid 6879] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6878] <... futex resumed>) = 0 [pid 6879] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6878] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6879] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6878] <... futex resumed>) = 0 [pid 6879] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6878] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6879] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6879] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6878] <... futex resumed>) = 0 [pid 6879] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6878] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6879] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6878] <... futex resumed>) = 0 [pid 6879] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6878] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6879] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6879] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6878] <... futex resumed>) = 0 [pid 6879] <... futex resumed>) = 1 [pid 6878] exit_group(0 [pid 6879] ???( [pid 6878] <... exit_group resumed>) = ? [pid 6879] <... ??? resumed>) = ? [pid 6879] +++ exited with 0 +++ [pid 6878] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6878, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6884 attached , child_tidptr=0x55556c203690) = 6884 [pid 6884] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6884] setpgid(0, 0) = 0 [pid 6884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6884] write(3, "1000", 4) = 4 [pid 6884] close(3) = 0 [pid 6884] write(1, "executing program\n", 18executing program ) = 18 [pid 6884] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6884] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6884] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6884] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6884] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6885 attached => {parent_tid=[6885]}, 88) = 6885 [pid 6885] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6884] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6884] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6884] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6885] <... rseq resumed>) = 0 [pid 6885] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6885] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6885] memfd_create("syzkaller", 0) = 3 [pid 6885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6881] <... close resumed>) = 0 [pid 6881] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6880] <... futex resumed>) = 0 [pid 6881] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6880] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6881] <... futex resumed>) = 0 [pid 6880] <... futex resumed>) = 1 [pid 6881] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6880] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6881] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6881] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6880] <... futex resumed>) = 0 [pid 6881] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6880] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6881] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6881] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6880] <... futex resumed>) = 0 [pid 6881] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6880] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6881] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6881] <... futex resumed>) = 0 [pid 6881] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6880] exit_group(0 [pid 6881] <... futex resumed>) = ? [pid 6880] <... exit_group resumed>) = ? [pid 6881] +++ exited with 0 +++ [pid 6880] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6880, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6886 attached , child_tidptr=0x55556c203690) = 6886 [pid 6886] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6886] setpgid(0, 0) = 0 [pid 6886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6886] write(3, "1000", 4) = 4 [pid 6886] close(3) = 0 executing program [pid 6886] write(1, "executing program\n", 18) = 18 [pid 6886] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6886] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6886] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6886] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6886] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6886] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6887 attached => {parent_tid=[6887]}, 88) = 6887 [pid 6887] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6886] rt_sigprocmask(SIG_SETMASK, [], [pid 6887] <... rseq resumed>) = 0 [pid 6886] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6887] set_robust_list(0x7fb72497a9a0, 24 [pid 6886] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6887] <... set_robust_list resumed>) = 0 [pid 6886] <... futex resumed>) = 0 [pid 6887] rt_sigprocmask(SIG_SETMASK, [], [pid 6886] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6887] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6887] memfd_create("syzkaller", 0 [pid 6885] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6887] <... memfd_create resumed>) = 3 [pid 6887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6883] <... write resumed>) = 16777216 [pid 6883] munmap(0x7fb71c400000, 138412032) = 0 [pid 6883] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6883] close(3 [pid 6887] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6885] <... write resumed>) = 16777216 [pid 6885] munmap(0x7fb71c400000, 138412032) = 0 [pid 6885] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6885] close(3 [pid 6883] <... close resumed>) = 0 [pid 6883] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6882] <... futex resumed>) = 0 [pid 6882] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6883] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6882] <... futex resumed>) = 0 [pid 6883] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6882] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6883] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6882] <... futex resumed>) = 0 [pid 6883] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6882] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6883] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6882] <... futex resumed>) = 0 [pid 6882] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6883] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6883] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6882] <... futex resumed>) = 0 [pid 6883] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6882] exit_group(0 [pid 6883] <... futex resumed>) = ? [pid 6882] <... exit_group resumed>) = ? [pid 6883] +++ exited with 0 +++ [pid 6882] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6882, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6888 attached , child_tidptr=0x55556c203690) = 6888 [pid 6888] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6888] setpgid(0, 0) = 0 [pid 6888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6888] write(3, "1000", 4) = 4 [pid 6888] close(3) = 0 [pid 6888] write(1, "executing program\n", 18) = 18 [pid 6888] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6888] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6888] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6888] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6888] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6888] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6888] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6889 attached [pid 6889] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6888] <... clone3 resumed> => {parent_tid=[6889]}, 88) = 6889 [pid 6889] <... rseq resumed>) = 0 [pid 6888] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6888] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6888] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6889] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6889] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6889] memfd_create("syzkaller", 0) = 3 [pid 6889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6887] <... write resumed>) = 16777216 [pid 6887] munmap(0x7fb71c400000, 138412032) = 0 [pid 6885] <... close resumed>) = 0 [pid 6887] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6885] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6887] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6887] close(3 [pid 6885] <... futex resumed>) = 1 [pid 6884] <... futex resumed>) = 0 [pid 6884] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6885] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6884] <... futex resumed>) = 0 [pid 6885] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6885] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6884] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6885] <... futex resumed>) = 0 [pid 6884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6885] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6884] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6884] <... futex resumed>) = 0 [pid 6885] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6884] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6885] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6885] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6884] <... futex resumed>) = 0 [pid 6885] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6884] exit_group(0 [pid 6885] <... futex resumed>) = ? [pid 6884] <... exit_group resumed>) = ? [pid 6885] +++ exited with 0 +++ [pid 6884] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6884, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6890 attached , child_tidptr=0x55556c203690) = 6890 [pid 6890] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6890] setpgid(0, 0) = 0 [pid 6890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6890] write(3, "1000", 4) = 4 [pid 6890] close(3) = 0 executing program [pid 6890] write(1, "executing program\n", 18) = 18 [pid 6890] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6890] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6890] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6890] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6890] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6890] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6891 attached => {parent_tid=[6891]}, 88) = 6891 [pid 6891] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6890] rt_sigprocmask(SIG_SETMASK, [], [pid 6889] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6891] <... rseq resumed>) = 0 [pid 6890] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6890] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6891] set_robust_list(0x7fb72497a9a0, 24 [pid 6890] <... futex resumed>) = 0 [pid 6890] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6891] <... set_robust_list resumed>) = 0 [pid 6891] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6891] memfd_create("syzkaller", 0) = 3 [pid 6891] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6891] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6887] <... close resumed>) = 0 [pid 6887] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6887] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6886] <... futex resumed>) = 0 [pid 6886] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6887] <... futex resumed>) = 0 [pid 6886] <... futex resumed>) = 1 [pid 6887] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6886] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6887] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6887] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6886] <... futex resumed>) = 0 [pid 6887] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6886] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6887] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6886] <... futex resumed>) = 0 [pid 6887] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6887] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6886] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6886] exit_group(0) = ? [pid 6887] <... futex resumed>) = ? [pid 6887] +++ exited with 0 +++ [pid 6886] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6886, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=40 /* 0.40 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6892 attached [pid 6892] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6892 [pid 6892] <... set_robust_list resumed>) = 0 [pid 6892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6892] setpgid(0, 0) = 0 [pid 6892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6892] write(3, "1000", 4) = 4 executing program [pid 6892] close(3) = 0 [pid 6892] write(1, "executing program\n", 18) = 18 [pid 6892] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6892] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6892] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6892] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6892] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6892] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6892] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6893 attached => {parent_tid=[6893]}, 88) = 6893 [pid 6893] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6892] rt_sigprocmask(SIG_SETMASK, [], [pid 6893] <... rseq resumed>) = 0 [pid 6892] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6893] set_robust_list(0x7fb72497a9a0, 24 [pid 6892] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6893] <... set_robust_list resumed>) = 0 [pid 6892] <... futex resumed>) = 0 [pid 6893] rt_sigprocmask(SIG_SETMASK, [], [pid 6892] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6893] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6893] memfd_create("syzkaller", 0) = 3 [pid 6893] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6889] <... write resumed>) = 16777216 [pid 6889] munmap(0x7fb71c400000, 138412032) = 0 [pid 6889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6889] close(3 [pid 6893] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6891] <... write resumed>) = 16777216 [pid 6891] munmap(0x7fb71c400000, 138412032) = 0 [pid 6891] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6891] close(3 [pid 6889] <... close resumed>) = 0 [pid 6889] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6889] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6888] <... futex resumed>) = 0 [pid 6888] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6889] <... futex resumed>) = 0 [pid 6888] <... futex resumed>) = 1 [pid 6889] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6888] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6889] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6889] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6888] <... futex resumed>) = 0 [pid 6889] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6888] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6889] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6888] <... futex resumed>) = 0 [pid 6889] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6888] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6889] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6888] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6889] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6888] exit_group(0 [pid 6889] <... futex resumed>) = ? [pid 6888] <... exit_group resumed>) = ? [pid 6889] +++ exited with 0 +++ [pid 6888] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6888, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6894 ./strace-static-x86_64: Process 6894 attached [pid 6894] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6894] setpgid(0, 0) = 0 [pid 6894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6894] write(3, "1000", 4) = 4 [pid 6894] close(3executing program ) = 0 [pid 6894] write(1, "executing program\n", 18) = 18 [pid 6894] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6894] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6894] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6894] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6891] <... close resumed>) = 0 [pid 6894] <... mmap resumed>) = 0x7fb72495a000 [pid 6891] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6894] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6891] <... futex resumed>) = 1 [pid 6890] <... futex resumed>) = 0 [pid 6894] <... mprotect resumed>) = 0 [pid 6890] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6891] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6890] <... futex resumed>) = 0 [pid 6891] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6890] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6891] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6894] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6891] <... futex resumed>) = 1 [pid 6890] <... futex resumed>) = 0 [pid 6891] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6894] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6890] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6891] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6894] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6890] <... futex resumed>) = 0 [pid 6891] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6890] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6891] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 6895 attached [pid 6894] <... clone3 resumed> => {parent_tid=[6895]}, 88) = 6895 [pid 6891] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6894] rt_sigprocmask(SIG_SETMASK, [], [pid 6891] <... futex resumed>) = 1 [pid 6890] <... futex resumed>) = 0 [pid 6894] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6895] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6894] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6891] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6890] exit_group(0 [pid 6895] <... rseq resumed>) = 0 [pid 6894] <... futex resumed>) = 0 [pid 6890] <... exit_group resumed>) = ? [pid 6895] set_robust_list(0x7fb72497a9a0, 24 [pid 6894] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6891] <... futex resumed>) = ? [pid 6895] <... set_robust_list resumed>) = 0 [pid 6891] +++ exited with 0 +++ [pid 6890] +++ exited with 0 +++ [pid 6895] rt_sigprocmask(SIG_SETMASK, [], [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6890, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6895] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6893] <... write resumed>) = 16777216 [pid 6895] memfd_create("syzkaller", 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 6893] munmap(0x7fb71c400000, 138412032 [pid 6895] <... memfd_create resumed>) = 3 [pid 6895] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6893] <... munmap resumed>) = 0 [pid 6895] <... mmap resumed>) = 0x7fb71c400000 [pid 6893] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6893] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6893] close(3 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6896 attached , child_tidptr=0x55556c203690) = 6896 [pid 6896] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6896] setpgid(0, 0) = 0 [pid 6896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6896] write(3, "1000", 4) = 4 executing program [pid 6896] close(3) = 0 [pid 6896] write(1, "executing program\n", 18) = 18 [pid 6896] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6896] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6896] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6896] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6896] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6896] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6896] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6897 attached => {parent_tid=[6897]}, 88) = 6897 [pid 6896] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6896] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6896] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6897] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6897] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6897] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6897] memfd_create("syzkaller", 0) = 3 [pid 6897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6895] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6893] <... close resumed>) = 0 [pid 6893] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6892] <... futex resumed>) = 0 [pid 6892] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6893] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6892] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6893] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6893] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6892] <... futex resumed>) = 0 [pid 6893] <... futex resumed>) = 1 [pid 6892] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6893] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6892] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6893] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6893] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6892] <... futex resumed>) = 0 [pid 6893] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6892] exit_group(0) = ? [pid 6893] <... futex resumed>) = ? [pid 6893] +++ exited with 0 +++ [pid 6892] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6892, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6898 ./strace-static-x86_64: Process 6898 attached [pid 6897] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6898] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6898] setpgid(0, 0) = 0 [pid 6898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6898] write(3, "1000", 4) = 4 [pid 6898] close(3) = 0 executing program [pid 6898] write(1, "executing program\n", 18) = 18 [pid 6898] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6898] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6898] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6898] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6898] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6898] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6898] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6899]}, 88) = 6899 [pid 6898] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6898] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6898] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6899 attached [pid 6899] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6899] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6899] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6899] memfd_create("syzkaller", 0) = 3 [pid 6899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6899] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6895] <... write resumed>) = 16777216 [pid 6895] munmap(0x7fb71c400000, 138412032 [pid 6897] <... write resumed>) = 16777216 [pid 6895] <... munmap resumed>) = 0 [pid 6895] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6897] munmap(0x7fb71c400000, 138412032 [pid 6895] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6895] close(3 [pid 6897] <... munmap resumed>) = 0 [pid 6897] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6897] close(3 [pid 6899] <... write resumed>) = 16777216 [pid 6899] munmap(0x7fb71c400000, 138412032) = 0 [pid 6899] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6899] close(3 [pid 6895] <... close resumed>) = 0 [pid 6895] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6895] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6894] <... futex resumed>) = 0 [pid 6894] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6895] <... futex resumed>) = 0 [pid 6894] <... futex resumed>) = 1 [pid 6895] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6894] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6895] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6895] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6894] <... futex resumed>) = 0 [pid 6895] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6894] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6895] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6894] <... futex resumed>) = 0 [pid 6895] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6894] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6895] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6894] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6895] <... futex resumed>) = 0 [pid 6895] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6894] exit_group(0 [pid 6895] <... futex resumed>) = ? [pid 6894] <... exit_group resumed>) = ? [pid 6897] <... close resumed>) = 0 [pid 6895] +++ exited with 0 +++ [pid 6897] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6896] <... futex resumed>) = 0 [pid 6897] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6896] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6897] <... futex resumed>) = 0 [pid 6897] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6896] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6897] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6897] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6897] <... futex resumed>) = 0 [pid 6896] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6897] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6896] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6897] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6896] exit_group(0 [pid 6897] <... futex resumed>) = ? [pid 6896] <... exit_group resumed>) = ? [pid 6897] +++ exited with 0 +++ [pid 6896] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6896, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6894] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6894, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 5869] <... restart_syscall resumed>) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6900 attached [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6900] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6900 [pid 6900] <... set_robust_list resumed>) = 0 [pid 6900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6901 attached [pid 6900] setpgid(0, 0 [pid 6901] set_robust_list(0x55556c2036a0, 24 [pid 6900] <... setpgid resumed>) = 0 [pid 6901] <... set_robust_list resumed>) = 0 [pid 6900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6901] setpgid(0, 0) = 0 [pid 6901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6900] <... openat resumed>) = 3 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6901 [pid 6901] <... openat resumed>) = 3 [pid 6900] write(3, "1000", 4) = 4 [pid 6901] write(3, "1000", 4 [pid 6900] close(3executing program [pid 6901] <... write resumed>) = 4 [pid 6900] <... close resumed>) = 0 [pid 6900] write(1, "executing program\n", 18 [pid 6901] close(3 [pid 6900] <... write resumed>) = 18 executing program [pid 6901] <... close resumed>) = 0 [pid 6901] write(1, "executing program\n", 18 [pid 6900] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6901] <... write resumed>) = 18 [pid 6900] <... futex resumed>) = 0 [pid 6900] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6901] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6900] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6901] <... futex resumed>) = 0 [pid 6901] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6900] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6901] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6900] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6901] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6900] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6901] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6900] <... mmap resumed>) = 0x7fb72495a000 [pid 6900] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6901] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6901] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6901] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6902 attached [pid 6902] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6901] <... clone3 resumed> => {parent_tid=[6902]}, 88) = 6902 [pid 6902] <... rseq resumed>) = 0 [pid 6901] rt_sigprocmask(SIG_SETMASK, [], [pid 6902] set_robust_list(0x7fb72497a9a0, 24 [pid 6901] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6902] <... set_robust_list resumed>) = 0 [pid 6901] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6902] rt_sigprocmask(SIG_SETMASK, [], [pid 6901] <... futex resumed>) = 0 [pid 6902] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6901] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6902] memfd_create("syzkaller", 0) = 3 [pid 6902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6900] <... mprotect resumed>) = 0 [pid 6902] <... mmap resumed>) = 0x7fb71c400000 [pid 6900] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6900] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6903 attached => {parent_tid=[6903]}, 88) = 6903 [pid 6900] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6900] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6900] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6903] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6903] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6903] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6903] memfd_create("syzkaller", 0) = 3 [pid 6903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6899] <... close resumed>) = 0 [pid 6899] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6898] <... futex resumed>) = 0 [pid 6898] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6899] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6898] <... futex resumed>) = 0 [pid 6899] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6898] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6899] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6898] <... futex resumed>) = 0 [pid 6898] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6898] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6899] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6899] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6898] <... futex resumed>) = 0 [pid 6899] <... futex resumed>) = 1 [pid 6898] exit_group(0 [pid 6899] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6898] <... exit_group resumed>) = ? [pid 6899] <... futex resumed>) = ? [pid 6899] +++ exited with 0 +++ [pid 6898] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6898, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6904 ./strace-static-x86_64: Process 6904 attached [pid 6904] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6904] setpgid(0, 0) = 0 [pid 6904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6902] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6904] write(3, "1000", 4) = 4 [pid 6904] close(3) = 0 executing program [pid 6904] write(1, "executing program\n", 18) = 18 [pid 6904] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6904] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6904] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6904] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6904] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6904] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6904] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6905 attached => {parent_tid=[6905]}, 88) = 6905 [pid 6904] rt_sigprocmask(SIG_SETMASK, [], [pid 6903] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6905] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6904] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6904] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6905] <... rseq resumed>) = 0 [pid 6904] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6905] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6905] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6905] memfd_create("syzkaller", 0) = 3 [pid 6905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6905] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6902] <... write resumed>) = 16777216 [pid 6902] munmap(0x7fb71c400000, 138412032) = 0 [pid 6903] <... write resumed>) = 16777216 [pid 6902] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6903] munmap(0x7fb71c400000, 138412032 [pid 6902] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6902] close(3 [pid 6903] <... munmap resumed>) = 0 [pid 6903] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6903] close(3 [pid 6905] <... write resumed>) = 16777216 [pid 6905] munmap(0x7fb71c400000, 138412032) = 0 [pid 6905] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6905] close(3 [pid 6903] <... close resumed>) = 0 [pid 6903] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6900] <... futex resumed>) = 0 [pid 6903] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6900] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6900] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6903] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6903] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6900] <... futex resumed>) = 0 [pid 6903] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6900] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6900] <... futex resumed>) = 0 [pid 6903] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6900] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6903] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6903] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6900] <... futex resumed>) = 0 [pid 6900] exit_group(0 [pid 6903] exit_group(0 [pid 6900] <... exit_group resumed>) = ? [pid 6903] +++ exited with 0 +++ [pid 6900] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6900, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6906 attached , child_tidptr=0x55556c203690) = 6906 [pid 6906] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 6906] setpgid(0, 0) = 0 [pid 6906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6906] write(3, "1000", 4) = 4 [pid 6906] close(3) = 0 [pid 6906] write(1, "executing program\n", 18) = 18 [pid 6906] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6906] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6906] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6906] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6906] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6906] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6906] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6907 attached => {parent_tid=[6907]}, 88) = 6907 [pid 6906] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6906] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6907] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6906] <... futex resumed>) = 0 [pid 6902] <... close resumed>) = 0 [pid 6907] <... rseq resumed>) = 0 [pid 6906] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6907] set_robust_list(0x7fb72497a9a0, 24 [pid 6902] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6907] <... set_robust_list resumed>) = 0 [pid 6907] rt_sigprocmask(SIG_SETMASK, [], [pid 6902] <... futex resumed>) = 1 [pid 6901] <... futex resumed>) = 0 [pid 6907] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6901] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6901] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6907] memfd_create("syzkaller", 0 [pid 6902] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6907] <... memfd_create resumed>) = 3 [pid 6907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6902] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6907] <... mmap resumed>) = 0x7fb71c400000 [pid 6902] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6901] <... futex resumed>) = 0 [pid 6902] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6901] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6902] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6901] <... futex resumed>) = 0 [pid 6902] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6901] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6902] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6902] <... futex resumed>) = 0 [pid 6902] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6901] exit_group(0 [pid 6902] <... futex resumed>) = ? [pid 6901] <... exit_group resumed>) = ? [pid 6902] +++ exited with 0 +++ [pid 6901] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6901, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6908 attached [pid 6908] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6908 [pid 6908] <... set_robust_list resumed>) = 0 [pid 6908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6908] setpgid(0, 0) = 0 [pid 6908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6908] write(3, "1000", 4) = 4 [pid 6908] close(3executing program ) = 0 [pid 6908] write(1, "executing program\n", 18) = 18 [pid 6908] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6908] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6908] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6908] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6908] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6908] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6909 attached => {parent_tid=[6909]}, 88) = 6909 [pid 6905] <... close resumed>) = 0 [pid 6909] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6908] rt_sigprocmask(SIG_SETMASK, [], [pid 6905] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6909] <... rseq resumed>) = 0 [pid 6908] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6905] <... futex resumed>) = 1 [pid 6904] <... futex resumed>) = 0 [pid 6909] set_robust_list(0x7fb72497a9a0, 24 [pid 6908] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6905] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6904] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6909] <... set_robust_list resumed>) = 0 [pid 6908] <... futex resumed>) = 0 [pid 6905] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6904] <... futex resumed>) = 0 [pid 6909] rt_sigprocmask(SIG_SETMASK, [], [pid 6908] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6905] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6904] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6909] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6905] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6909] memfd_create("syzkaller", 0 [pid 6905] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6904] <... futex resumed>) = 0 [pid 6904] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6904] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6905] <... futex resumed>) = 1 [pid 6905] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6909] <... memfd_create resumed>) = 3 [pid 6905] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6905] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6904] <... futex resumed>) = 0 [pid 6909] <... mmap resumed>) = 0x7fb71c400000 [pid 6905] <... futex resumed>) = 1 [pid 6904] exit_group(0) = ? [pid 6905] +++ exited with 0 +++ [pid 6904] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6904, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=30 /* 0.30 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6910 attached , child_tidptr=0x55556c203690) = 6910 [pid 6910] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6910] setpgid(0, 0) = 0 [pid 6910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6910] write(3, "1000", 4) = 4 [pid 6910] close(3) = 0 [pid 6910] write(1, "executing program\n", 18) = 18 [pid 6910] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6910] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6910] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6910] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6910] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6910] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6910] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6907] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 6911 attached [pid 6910] <... clone3 resumed> => {parent_tid=[6911]}, 88) = 6911 [pid 6911] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6910] rt_sigprocmask(SIG_SETMASK, [], [pid 6911] <... rseq resumed>) = 0 [pid 6911] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6911] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6911] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6910] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6910] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6911] <... futex resumed>) = 0 [pid 6910] <... futex resumed>) = 1 [pid 6911] memfd_create("syzkaller", 0 [pid 6910] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6911] <... memfd_create resumed>) = 3 [pid 6911] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6909] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6911] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6907] <... write resumed>) = 16777216 [pid 6907] munmap(0x7fb71c400000, 138412032) = 0 [pid 6907] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6907] close(3 [pid 6909] <... write resumed>) = 16777216 [pid 6909] munmap(0x7fb71c400000, 138412032) = 0 [pid 6909] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6907] <... close resumed>) = 0 [pid 6909] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6907] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6909] close(3 [pid 6907] <... futex resumed>) = 1 [pid 6906] <... futex resumed>) = 0 [pid 6907] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6906] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6907] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6906] <... futex resumed>) = 0 [pid 6907] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6906] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6907] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6907] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6906] <... futex resumed>) = 0 [pid 6907] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6906] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6907] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6906] <... futex resumed>) = 0 [pid 6907] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6906] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6911] <... write resumed>) = 16777216 [pid 6907] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6911] munmap(0x7fb71c400000, 138412032 [pid 6907] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6906] <... futex resumed>) = 0 [pid 6907] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6906] exit_group(0 [pid 6907] <... futex resumed>) = ? [pid 6906] <... exit_group resumed>) = ? [pid 6907] +++ exited with 0 +++ [pid 6906] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6906, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6911] <... munmap resumed>) = 0 [pid 6911] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6911] close(3 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6912 attached , child_tidptr=0x55556c203690) = 6912 [pid 6912] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6912] setpgid(0, 0) = 0 [pid 6912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6912] write(3, "1000", 4) = 4 [pid 6912] close(3executing program ) = 0 [pid 6912] write(1, "executing program\n", 18) = 18 [pid 6912] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6912] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6912] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6912] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6912] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6912] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6913 attached [pid 6913] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6912] <... clone3 resumed> => {parent_tid=[6913]}, 88) = 6913 [pid 6913] <... rseq resumed>) = 0 [pid 6912] rt_sigprocmask(SIG_SETMASK, [], [pid 6913] set_robust_list(0x7fb72497a9a0, 24 [pid 6912] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6913] <... set_robust_list resumed>) = 0 [pid 6912] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6913] rt_sigprocmask(SIG_SETMASK, [], [pid 6912] <... futex resumed>) = 0 [pid 6913] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6912] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6913] memfd_create("syzkaller", 0) = 3 [pid 6913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6911] <... close resumed>) = 0 [pid 6911] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6909] <... close resumed>) = 0 [pid 6911] <... futex resumed>) = 1 [pid 6910] <... futex resumed>) = 0 [pid 6909] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6911] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6910] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6909] <... futex resumed>) = 1 [pid 6908] <... futex resumed>) = 0 [pid 6911] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6910] <... futex resumed>) = 0 [pid 6909] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6908] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6911] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6910] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6908] <... futex resumed>) = 0 [pid 6910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6911] <... futex resumed>) = 0 [pid 6910] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6909] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6908] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6911] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6910] <... futex resumed>) = 0 [pid 6909] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6911] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6910] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6911] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6909] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6911] <... futex resumed>) = 1 [pid 6910] <... futex resumed>) = 0 [pid 6909] <... futex resumed>) = 1 [pid 6908] <... futex resumed>) = 0 [pid 6911] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6910] exit_group(0 [pid 6908] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6911] <... futex resumed>) = ? [pid 6910] <... exit_group resumed>) = ? [pid 6909] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6908] <... futex resumed>) = 0 [pid 6911] +++ exited with 0 +++ [pid 6909] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6908] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6909] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6908] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6909] <... futex resumed>) = 0 [pid 6908] exit_group(0 [pid 6910] +++ exited with 0 +++ [pid 6909] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6910, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 6909] <... futex resumed>) = ? [pid 6908] <... exit_group resumed>) = ? [pid 6913] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6909] +++ exited with 0 +++ [pid 6908] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6908, si_uid=0, si_status=0, si_utime=0, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6914 attached ./strace-static-x86_64: Process 6915 attached [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6915 [pid 6915] set_robust_list(0x55556c2036a0, 24 [pid 6914] set_robust_list(0x55556c2036a0, 24 [pid 6915] <... set_robust_list resumed>) = 0 [pid 6914] <... set_robust_list resumed>) = 0 [pid 6915] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6914] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6915] <... prctl resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6914 [pid 6914] <... prctl resumed>) = 0 [pid 6915] setpgid(0, 0 [pid 6914] setpgid(0, 0 [pid 6915] <... setpgid resumed>) = 0 [pid 6914] <... setpgid resumed>) = 0 [pid 6915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6915] <... openat resumed>) = 3 [pid 6914] <... openat resumed>) = 3 [pid 6915] write(3, "1000", 4) = 4 [pid 6914] write(3, "1000", 4 [pid 6915] close(3 [pid 6914] <... write resumed>) = 4 [pid 6915] <... close resumed>) = 0 executing program [pid 6914] close(3 [pid 6915] write(1, "executing program\n", 18 [pid 6914] <... close resumed>) = 0 [pid 6915] <... write resumed>) = 18 executing program [pid 6915] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6914] write(1, "executing program\n", 18) = 18 [pid 6915] <... futex resumed>) = 0 [pid 6914] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6915] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6914] <... futex resumed>) = 0 [pid 6915] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6914] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6915] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6914] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6915] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6914] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6914] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6915] <... mmap resumed>) = 0x7fb72495a000 [pid 6914] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6914] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6915] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6914] <... mprotect resumed>) = 0 [pid 6915] <... mprotect resumed>) = 0 [pid 6914] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6915] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6914] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6914] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6915] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 6916 attached [pid 6915] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6917 attached [pid 6917] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6914] <... clone3 resumed> => {parent_tid=[6916]}, 88) = 6916 [pid 6915] <... clone3 resumed> => {parent_tid=[6917]}, 88) = 6917 [pid 6917] <... rseq resumed>) = 0 [pid 6914] rt_sigprocmask(SIG_SETMASK, [], [pid 6915] rt_sigprocmask(SIG_SETMASK, [], [pid 6917] set_robust_list(0x7fb72497a9a0, 24 [pid 6914] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6915] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6917] <... set_robust_list resumed>) = 0 [pid 6917] rt_sigprocmask(SIG_SETMASK, [], [pid 6914] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6915] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6917] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6914] <... futex resumed>) = 0 [pid 6915] <... futex resumed>) = 0 [pid 6917] memfd_create("syzkaller", 0 [pid 6914] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6915] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6917] <... memfd_create resumed>) = 3 [pid 6917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6916] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6916] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6916] memfd_create("syzkaller", 0) = 3 [pid 6916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6913] <... write resumed>) = 16777216 [pid 6913] munmap(0x7fb71c400000, 138412032 [pid 6917] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6913] <... munmap resumed>) = 0 [pid 6913] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6913] close(3 [pid 6916] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6913] <... close resumed>) = 0 [pid 6913] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6912] <... futex resumed>) = 0 [pid 6913] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6912] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6913] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6912] <... futex resumed>) = 0 [pid 6913] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6912] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6913] <... futex resumed>) = 0 [pid 6912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6913] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6912] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6913] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6912] <... futex resumed>) = 0 [pid 6913] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6912] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6913] <... futex resumed>) = 0 [pid 6912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6913] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6912] exit_group(0 [pid 6913] <... futex resumed>) = ? [pid 6912] <... exit_group resumed>) = ? [pid 6913] +++ exited with 0 +++ [pid 6912] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6912, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6918 ./strace-static-x86_64: Process 6918 attached [pid 6918] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6918] setpgid(0, 0) = 0 [pid 6918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6918] write(3, "1000", 4) = 4 [pid 6918] close(3executing program ) = 0 [pid 6918] write(1, "executing program\n", 18) = 18 [pid 6918] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6918] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6918] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6918] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6918] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6918] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6918] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6919 attached => {parent_tid=[6919]}, 88) = 6919 [pid 6918] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6918] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6918] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6919] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6919] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6919] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6919] memfd_create("syzkaller", 0) = 3 [pid 6919] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6916] <... write resumed>) = 16777216 [pid 6916] munmap(0x7fb71c400000, 138412032 [pid 6917] <... write resumed>) = 16777216 [pid 6916] <... munmap resumed>) = 0 [pid 6917] munmap(0x7fb71c400000, 138412032 [pid 6916] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6916] close(3 [pid 6917] <... munmap resumed>) = 0 [pid 6917] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6917] close(3 [pid 6919] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6916] <... close resumed>) = 0 [pid 6916] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6914] <... futex resumed>) = 0 [pid 6916] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6914] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6916] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6914] <... futex resumed>) = 0 [pid 6916] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6914] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6916] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6916] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6914] <... futex resumed>) = 0 [pid 6916] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6914] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6916] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6914] <... futex resumed>) = 0 [pid 6916] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6914] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6916] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6916] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6914] <... futex resumed>) = 0 [pid 6916] <... futex resumed>) = 1 [pid 6914] exit_group(0 [pid 6916] ???( [pid 6914] <... exit_group resumed>) = ? [pid 6916] <... ??? resumed>) = ? [pid 6916] +++ exited with 0 +++ [pid 6914] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6914, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6920 ./strace-static-x86_64: Process 6920 attached [pid 6920] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6920] setpgid(0, 0) = 0 [pid 6917] <... close resumed>) = 0 [pid 6920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6920] write(3, "1000", 4executing program ) = 4 [pid 6920] close(3) = 0 [pid 6920] write(1, "executing program\n", 18) = 18 [pid 6920] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6920] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6920] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6920] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6920] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6920] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6920] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6921 attached => {parent_tid=[6921]}, 88) = 6921 [pid 6920] rt_sigprocmask(SIG_SETMASK, [], [pid 6921] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6920] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6921] <... rseq resumed>) = 0 [pid 6921] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6921] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6920] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6921] memfd_create("syzkaller", 0 [pid 6920] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6921] <... memfd_create resumed>) = 3 [pid 6917] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6917] <... futex resumed>) = 1 [pid 6915] <... futex resumed>) = 0 [pid 6921] <... mmap resumed>) = 0x7fb71c400000 [pid 6917] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6915] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6917] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6917] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6917] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6917] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 6915] <... futex resumed>) = 1 [pid 6915] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6917] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6915] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6917] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6915] <... futex resumed>) = 0 [pid 6917] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6915] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6917] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6917] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6917] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6915] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6915] exit_group(0) = ? [pid 6917] <... futex resumed>) = ? [pid 6917] +++ exited with 0 +++ [pid 6915] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6915, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6922 attached , child_tidptr=0x55556c203690) = 6922 [pid 6922] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6922] setpgid(0, 0) = 0 [pid 6922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6922] write(3, "1000", 4 [pid 6919] <... write resumed>) = 16777216 [pid 6922] <... write resumed>) = 4 [pid 6922] close(3) = 0 [pid 6922] write(1, "executing program\n", 18executing program ) = 18 [pid 6922] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6922] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6922] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6922] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6922] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6919] munmap(0x7fb71c400000, 138412032 [pid 6922] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6922] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6923 attached [pid 6923] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6922] <... clone3 resumed> => {parent_tid=[6923]}, 88) = 6923 [pid 6923] <... rseq resumed>) = 0 [pid 6922] rt_sigprocmask(SIG_SETMASK, [], [pid 6923] set_robust_list(0x7fb72497a9a0, 24 [pid 6922] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6923] <... set_robust_list resumed>) = 0 [pid 6922] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6923] rt_sigprocmask(SIG_SETMASK, [], [pid 6922] <... futex resumed>) = 0 [pid 6923] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6922] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6923] memfd_create("syzkaller", 0) = 3 [pid 6923] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6919] <... munmap resumed>) = 0 [pid 6921] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6919] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6919] close(3 [pid 6923] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6919] <... close resumed>) = 0 [pid 6919] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6918] <... futex resumed>) = 0 [pid 6918] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6918] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6919] <... futex resumed>) = 1 [pid 6919] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6919] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6918] <... futex resumed>) = 0 [pid 6918] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6918] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6919] <... futex resumed>) = 1 [pid 6919] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6919] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6918] <... futex resumed>) = 0 [pid 6918] exit_group(0) = ? [pid 6919] <... futex resumed>) = ? [pid 6919] +++ exited with 0 +++ [pid 6918] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6918, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=39 /* 0.39 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6924 ./strace-static-x86_64: Process 6924 attached [pid 6924] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6924] setpgid(0, 0) = 0 [pid 6924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6924] write(3, "1000", 4) = 4 [pid 6924] close(3) = 0 executing program [pid 6924] write(1, "executing program\n", 18) = 18 [pid 6924] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6924] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6924] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6924] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6925 attached [pid 6925] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6924] <... clone3 resumed> => {parent_tid=[6925]}, 88) = 6925 [pid 6925] <... rseq resumed>) = 0 [pid 6924] rt_sigprocmask(SIG_SETMASK, [], [pid 6925] set_robust_list(0x7fb72497a9a0, 24 [pid 6924] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6925] <... set_robust_list resumed>) = 0 [pid 6924] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6925] rt_sigprocmask(SIG_SETMASK, [], [pid 6924] <... futex resumed>) = 0 [pid 6925] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6924] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6925] memfd_create("syzkaller", 0) = 3 [pid 6925] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6921] <... write resumed>) = 16777216 [pid 6921] munmap(0x7fb71c400000, 138412032) = 0 [pid 6923] <... write resumed>) = 16777216 [pid 6921] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6923] munmap(0x7fb71c400000, 138412032 [pid 6921] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6921] close(3 [pid 6925] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6923] <... munmap resumed>) = 0 [pid 6923] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6923] close(3 [pid 6921] <... close resumed>) = 0 [pid 6921] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6920] <... futex resumed>) = 0 [pid 6920] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6920] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6921] <... futex resumed>) = 1 [pid 6921] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6921] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6920] <... futex resumed>) = 0 [pid 6920] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6920] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6921] <... futex resumed>) = 1 [pid 6921] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6921] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6920] <... futex resumed>) = 0 [pid 6920] exit_group(0) = ? [pid 6921] <... futex resumed>) = ? [pid 6921] +++ exited with 0 +++ [pid 6920] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6920, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6926 attached , child_tidptr=0x55556c203690) = 6926 [pid 6926] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6926] setpgid(0, 0) = 0 [pid 6926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6926] write(3, "1000", 4) = 4 [pid 6926] close(3) = 0 [pid 6926] write(1, "executing program\n", 18) = 18 [pid 6926] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6926] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6926] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6926] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6926] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6926] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6927 attached => {parent_tid=[6927]}, 88) = 6927 [pid 6926] rt_sigprocmask(SIG_SETMASK, [], [pid 6923] <... close resumed>) = 0 [pid 6926] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6927] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6926] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6923] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6927] <... rseq resumed>) = 0 [pid 6926] <... futex resumed>) = 0 [pid 6927] set_robust_list(0x7fb72497a9a0, 24 [pid 6923] <... futex resumed>) = 1 [pid 6922] <... futex resumed>) = 0 [pid 6927] <... set_robust_list resumed>) = 0 [pid 6926] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6923] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6922] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6927] rt_sigprocmask(SIG_SETMASK, [], [pid 6923] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6922] <... futex resumed>) = 0 [pid 6927] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6923] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6922] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6927] memfd_create("syzkaller", 0 [pid 6923] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6923] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6927] <... memfd_create resumed>) = 3 [pid 6923] <... futex resumed>) = 1 [pid 6922] <... futex resumed>) = 0 [pid 6927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6923] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6922] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6927] <... mmap resumed>) = 0x7fb71c400000 [pid 6923] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6922] <... futex resumed>) = 0 [pid 6923] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6922] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6923] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6923] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6922] <... futex resumed>) = 0 [pid 6922] exit_group(0 [pid 6923] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6922] <... exit_group resumed>) = ? [pid 6923] <... futex resumed>) = ? [pid 6923] +++ exited with 0 +++ [pid 6922] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6922, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>executing program ) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6928 attached , child_tidptr=0x55556c203690) = 6928 [pid 6928] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6928] setpgid(0, 0) = 0 [pid 6928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6928] write(3, "1000", 4) = 4 [pid 6928] close(3) = 0 [pid 6928] write(1, "executing program\n", 18) = 18 [pid 6928] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6928] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6928] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6928] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6928] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6928] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6929]}, 88) = 6929 [pid 6928] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6928] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6928] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6929 attached [pid 6929] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6929] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6929] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6929] memfd_create("syzkaller", 0) = 3 [pid 6929] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6925] <... write resumed>) = 16777216 [pid 6925] munmap(0x7fb71c400000, 138412032) = 0 [pid 6925] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6925] close(3 [pid 6927] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6929] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6925] <... close resumed>) = 0 [pid 6925] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6924] <... futex resumed>) = 0 [pid 6925] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6924] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6925] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6924] <... futex resumed>) = 0 [pid 6925] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6924] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6925] <... futex resumed>) = 0 [pid 6924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6925] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6924] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6925] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6925] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6924] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6925] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6925] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6924] <... futex resumed>) = 0 [pid 6924] exit_group(0 [pid 6925] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6924] <... exit_group resumed>) = ? [pid 6925] <... futex resumed>) = ? [pid 6925] +++ exited with 0 +++ [pid 6924] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6924, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6930 attached , child_tidptr=0x55556c203690) = 6930 [pid 6930] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6930] setpgid(0, 0) = 0 [pid 6930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6930] write(3, "1000", 4) = 4 [pid 6930] close(3) = 0 [pid 6930] write(1, "executing program\n", 18) = 18 [pid 6930] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6930] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6930] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6930] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6930] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6930] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6930] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6931 attached [pid 6931] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6930] <... clone3 resumed> => {parent_tid=[6931]}, 88) = 6931 [pid 6931] <... rseq resumed>) = 0 [pid 6931] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6931] rt_sigprocmask(SIG_SETMASK, [], [pid 6930] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6930] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6931] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6930] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6931] memfd_create("syzkaller", 0) = 3 [pid 6931] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6929] <... write resumed>) = 16777216 [pid 6929] munmap(0x7fb71c400000, 138412032 [pid 6927] <... write resumed>) = 16777216 [pid 6927] munmap(0x7fb71c400000, 138412032 [pid 6929] <... munmap resumed>) = 0 [pid 6929] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6929] close(3 [pid 6927] <... munmap resumed>) = 0 [pid 6927] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6927] close(3 [pid 6931] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6927] <... close resumed>) = 0 [pid 6927] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6926] <... futex resumed>) = 0 [pid 6927] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6926] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6926] <... futex resumed>) = 0 [pid 6927] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6926] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6927] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6927] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6926] <... futex resumed>) = 0 [pid 6926] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6926] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6927] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6927] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6926] <... futex resumed>) = 0 [pid 6927] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6926] exit_group(0) = ? [pid 6927] <... futex resumed>) = ? [pid 6927] +++ exited with 0 +++ [pid 6926] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6926, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6932 attached , child_tidptr=0x55556c203690) = 6932 [pid 6932] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6932] setpgid(0, 0) = 0 [pid 6932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6929] <... close resumed>) = 0 [pid 6932] <... openat resumed>) = 3 [pid 6932] write(3, "1000", 4) = 4 [pid 6932] close(3) = 0 executing program [pid 6932] write(1, "executing program\n", 18) = 18 [pid 6932] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6932] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6932] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6932] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6932] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6929] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6932] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6929] <... futex resumed>) = 1 [pid 6928] <... futex resumed>) = 0 [pid 6928] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6928] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6929] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6932] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6929] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6932] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6929] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6933 attached ) = 1 [pid 6928] <... futex resumed>) = 0 [pid 6928] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6933] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6932] <... clone3 resumed> => {parent_tid=[6933]}, 88) = 6933 [pid 6929] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6928] <... futex resumed>) = 0 [pid 6933] <... rseq resumed>) = 0 [pid 6932] rt_sigprocmask(SIG_SETMASK, [], [pid 6929] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6928] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6932] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6929] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6932] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6929] <... futex resumed>) = 1 [pid 6928] <... futex resumed>) = 0 [pid 6932] <... futex resumed>) = 0 [pid 6929] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6928] exit_group(0 [pid 6932] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6929] <... futex resumed>) = ? [pid 6928] <... exit_group resumed>) = ? [pid 6929] +++ exited with 0 +++ [pid 6928] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6928, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 6933] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6933] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6933] memfd_create("syzkaller", 0) = 3 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6933] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6934 attached , child_tidptr=0x55556c203690) = 6934 [pid 6934] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6934] setpgid(0, 0) = 0 [pid 6934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6934] write(3, "1000", 4) = 4 [pid 6934] close(3) = 0 [pid 6934] write(1, "executing program\n", 18executing program ) = 18 [pid 6934] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6934] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6934] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6934] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6934] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6934] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6935 attached => {parent_tid=[6935]}, 88) = 6935 [pid 6931] <... write resumed>) = 16777216 [pid 6934] rt_sigprocmask(SIG_SETMASK, [], [pid 6935] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6934] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6931] munmap(0x7fb71c400000, 138412032 [pid 6935] <... rseq resumed>) = 0 [pid 6934] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6935] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6935] rt_sigprocmask(SIG_SETMASK, [], [pid 6934] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6935] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6935] memfd_create("syzkaller", 0) = 3 [pid 6935] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6931] <... munmap resumed>) = 0 [pid 6933] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6931] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6931] close(3 [pid 6935] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6933] <... write resumed>) = 16777216 [pid 6933] munmap(0x7fb71c400000, 138412032 [pid 6931] <... close resumed>) = 0 [pid 6933] <... munmap resumed>) = 0 [pid 6933] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6931] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6933] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6931] <... futex resumed>) = 1 [pid 6930] <... futex resumed>) = 0 [pid 6930] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6933] close(3 [pid 6931] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6930] <... futex resumed>) = 0 [pid 6931] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6930] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6931] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6930] <... futex resumed>) = 0 [pid 6931] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6930] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6930] <... futex resumed>) = 0 [pid 6931] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6930] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6931] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6931] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6930] <... futex resumed>) = 0 [pid 6931] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6930] exit_group(0 [pid 6931] <... futex resumed>) = ? [pid 6930] <... exit_group resumed>) = ? [pid 6931] +++ exited with 0 +++ [pid 6930] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6930, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=42 /* 0.42 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6936 ./strace-static-x86_64: Process 6936 attached [pid 6936] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6936] setpgid(0, 0) = 0 [pid 6936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6936] write(3, "1000", 4) = 4 [pid 6936] close(3) = 0 executing program [pid 6936] write(1, "executing program\n", 18) = 18 [pid 6936] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6936] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6936] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6936] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6936] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6936] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6937]}, 88) = 6937 ./strace-static-x86_64: Process 6937 attached [pid 6936] rt_sigprocmask(SIG_SETMASK, [], [pid 6937] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6936] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6936] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6937] <... rseq resumed>) = 0 [pid 6936] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6937] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6937] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6937] memfd_create("syzkaller", 0) = 3 [pid 6937] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6935] <... write resumed>) = 16777216 [pid 6935] munmap(0x7fb71c400000, 138412032) = 0 [pid 6935] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6935] close(3 [pid 6937] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6933] <... close resumed>) = 0 [pid 6933] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6933] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6932] <... futex resumed>) = 0 [pid 6932] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6933] <... futex resumed>) = 0 [pid 6932] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6933] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6933] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6932] <... futex resumed>) = 0 [pid 6932] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6933] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6932] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6933] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6933] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6932] <... futex resumed>) = 0 [pid 6932] exit_group(0) = ? [pid 6933] +++ exited with 0 +++ [pid 6932] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6932, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6938 ./strace-static-x86_64: Process 6938 attached [pid 6938] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6938] setpgid(0, 0) = 0 [pid 6938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6938] write(3, "1000", 4) = 4 [pid 6938] close(3executing program ) = 0 [pid 6938] write(1, "executing program\n", 18) = 18 [pid 6938] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6938] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6938] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6938] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6938] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6938] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6938] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 6935] <... close resumed>) = 0 [pid 6938] <... clone3 resumed> => {parent_tid=[6939]}, 88) = 6939 [pid 6938] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6938] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6938] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6935] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6939 attached [pid 6939] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6935] <... futex resumed>) = 1 [pid 6934] <... futex resumed>) = 0 [pid 6935] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6934] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6935] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6934] <... futex resumed>) = 0 [pid 6935] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6934] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6935] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6939] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6939] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6939] memfd_create("syzkaller", 0) = 3 [pid 6935] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6939] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6935] <... futex resumed>) = 1 [pid 6934] <... futex resumed>) = 0 [pid 6934] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6939] <... mmap resumed>) = 0x7fb71c400000 [pid 6935] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6934] <... futex resumed>) = 0 [pid 6935] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6934] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6935] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6934] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6934] exit_group(0) = ? [pid 6935] <... futex resumed>) = ? [pid 6935] +++ exited with 0 +++ [pid 6934] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6934, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6940 ./strace-static-x86_64: Process 6940 attached [pid 6940] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6940] setpgid(0, 0) = 0 [pid 6940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6940] write(3, "1000", 4) = 4 [pid 6940] close(3) = 0 executing program [pid 6940] write(1, "executing program\n", 18) = 18 [pid 6940] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6940] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6940] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6940] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6940] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6940] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6941]}, 88) = 6941 [pid 6940] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6940] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6940] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6941 attached [pid 6941] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6941] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6941] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6941] memfd_create("syzkaller", 0 [pid 6937] <... write resumed>) = 16777216 [pid 6941] <... memfd_create resumed>) = 3 [pid 6941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6937] munmap(0x7fb71c400000, 138412032 [pid 6941] <... mmap resumed>) = 0x7fb71c400000 [pid 6937] <... munmap resumed>) = 0 [pid 6937] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6937] close(3 [pid 6939] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6941] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6937] <... close resumed>) = 0 [pid 6937] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6936] <... futex resumed>) = 0 [pid 6937] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6936] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6937] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6936] <... futex resumed>) = 0 [pid 6937] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6936] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6937] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6937] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6936] <... futex resumed>) = 0 [pid 6937] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6936] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6937] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6936] <... futex resumed>) = 0 [pid 6937] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6936] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6937] <... futex resumed>) = 0 [pid 6936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6937] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6936] exit_group(0 [pid 6937] <... futex resumed>) = ? [pid 6936] <... exit_group resumed>) = ? [pid 6937] +++ exited with 0 +++ [pid 6936] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6936, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6942 attached , child_tidptr=0x55556c203690) = 6942 [pid 6942] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6942] setpgid(0, 0) = 0 [pid 6942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6942] write(3, "1000", 4) = 4 [pid 6942] close(3) = 0 executing program [pid 6942] write(1, "executing program\n", 18) = 18 [pid 6942] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6942] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6942] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6942] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6942] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6942] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6943 attached => {parent_tid=[6943]}, 88) = 6943 [pid 6943] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6942] rt_sigprocmask(SIG_SETMASK, [], [pid 6943] <... rseq resumed>) = 0 [pid 6942] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6943] set_robust_list(0x7fb72497a9a0, 24 [pid 6942] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6943] <... set_robust_list resumed>) = 0 [pid 6942] <... futex resumed>) = 0 [pid 6943] rt_sigprocmask(SIG_SETMASK, [], [pid 6942] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6943] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6943] memfd_create("syzkaller", 0) = 3 [pid 6943] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6941] <... write resumed>) = 16777216 [pid 6939] <... write resumed>) = 16777216 [pid 6941] munmap(0x7fb71c400000, 138412032 [pid 6939] munmap(0x7fb71c400000, 138412032 [pid 6941] <... munmap resumed>) = 0 [pid 6939] <... munmap resumed>) = 0 [pid 6941] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6939] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6941] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6939] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6941] close(3 [pid 6939] close(3 [pid 6943] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6941] <... close resumed>) = 0 [pid 6941] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6940] <... futex resumed>) = 0 [pid 6940] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6940] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6941] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6941] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6940] <... futex resumed>) = 0 [pid 6940] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6941] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6940] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6941] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6939] <... close resumed>) = 0 [pid 6941] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6939] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6938] <... futex resumed>) = 0 [pid 6940] <... futex resumed>) = 0 [pid 6939] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6938] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6941] <... futex resumed>) = 1 [pid 6940] exit_group(0 [pid 6939] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6938] <... futex resumed>) = 0 [pid 6940] <... exit_group resumed>) = ? [pid 6939] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6938] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6939] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6939] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6941] +++ exited with 0 +++ [pid 6940] +++ exited with 0 +++ [pid 6939] <... futex resumed>) = 1 [pid 6938] <... futex resumed>) = 0 [pid 6939] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6938] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6940, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 6939] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6938] <... futex resumed>) = 0 [pid 6939] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6938] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6939] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6939] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6944 attached [pid 6939] <... futex resumed>) = 1 [pid 6938] <... futex resumed>) = 0 [pid 6944] set_robust_list(0x55556c2036a0, 24 [pid 6939] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6938] exit_group(0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 6944 [pid 6944] <... set_robust_list resumed>) = 0 [pid 6939] <... futex resumed>) = ? [pid 6938] <... exit_group resumed>) = ? [pid 6944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6944] setpgid(0, 0) = 0 [pid 6944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6939] +++ exited with 0 +++ [pid 6938] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6938, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6944] write(3, "1000", 4 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6944] <... write resumed>) = 4 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6944] close(3) = 0 executing program ./strace-static-x86_64: Process 6945 attached [pid 6944] write(1, "executing program\n", 18) = 18 [pid 6944] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6945] set_robust_list(0x55556c2036a0, 24 [pid 6944] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6944] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6945] <... set_robust_list resumed>) = 0 [pid 6944] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6945 [pid 6945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6945] setpgid(0, 0) = 0 [pid 6944] <... mmap resumed>) = 0x7fb72495a000 [pid 6945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6944] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 6943] <... write resumed>) = 16777216 [pid 6945] <... openat resumed>) = 3 [pid 6944] <... mprotect resumed>) = 0 [pid 6945] write(3, "1000", 4 [pid 6943] munmap(0x7fb71c400000, 138412032 [pid 6944] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6944] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6946 attached => {parent_tid=[6946]}, 88) = 6946 [pid 6946] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6945] <... write resumed>) = 4 [pid 6944] rt_sigprocmask(SIG_SETMASK, [], [pid 6943] <... munmap resumed>) = 0 [pid 6946] <... rseq resumed>) = 0 [pid 6945] close(3 [pid 6944] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6946] set_robust_list(0x7fb72497a9a0, 24 [pid 6944] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6943] openat(AT_FDCWD, "/dev/loop0", O_RDWRexecuting program [pid 6946] <... set_robust_list resumed>) = 0 [pid 6945] <... close resumed>) = 0 [pid 6943] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6945] write(1, "executing program\n", 18 [pid 6946] rt_sigprocmask(SIG_SETMASK, [], [pid 6945] <... write resumed>) = 18 [pid 6944] <... futex resumed>) = 0 [pid 6946] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6945] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6944] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6943] close(3 [pid 6946] memfd_create("syzkaller", 0 [pid 6945] <... futex resumed>) = 0 [pid 6945] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6946] <... memfd_create resumed>) = 3 [pid 6946] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6945] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6945] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6945] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6945] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6945] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6945] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6947 attached => {parent_tid=[6947]}, 88) = 6947 [pid 6945] rt_sigprocmask(SIG_SETMASK, [], [pid 6947] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6945] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6947] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6945] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6947] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6945] <... futex resumed>) = 0 [pid 6945] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6947] memfd_create("syzkaller", 0) = 3 [pid 6947] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6946] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6947] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6943] <... close resumed>) = 0 [pid 6943] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6942] <... futex resumed>) = 0 [pid 6943] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6942] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6943] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6942] <... futex resumed>) = 0 [pid 6942] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6943] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6943] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6942] <... futex resumed>) = 0 [pid 6943] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6942] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6942] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6943] <... futex resumed>) = 0 [pid 6943] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6943] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6942] <... futex resumed>) = 0 [pid 6943] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6942] exit_group(0 [pid 6943] <... futex resumed>) = ? [pid 6942] <... exit_group resumed>) = ? [pid 6943] +++ exited with 0 +++ [pid 6942] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6942, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6948 attached [pid 6948] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6948] setpgid(0, 0) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6948 [pid 6948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6948] write(3, "1000", 4) = 4 [pid 6948] close(3) = 0 executing program [pid 6948] write(1, "executing program\n", 18) = 18 [pid 6948] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6948] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6948] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6948] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6948] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6948] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6948] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6949]}, 88) = 6949 ./strace-static-x86_64: Process 6949 attached [pid 6948] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6949] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6948] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6948] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6949] <... rseq resumed>) = 0 [pid 6949] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6949] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6949] memfd_create("syzkaller", 0) = 3 [pid 6949] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6946] <... write resumed>) = 16777216 [pid 6946] munmap(0x7fb71c400000, 138412032) = 0 [pid 6946] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6946] close(3 [pid 6949] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6947] <... write resumed>) = 16777216 [pid 6947] munmap(0x7fb71c400000, 138412032) = 0 [pid 6947] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6947] close(3 [pid 6946] <... close resumed>) = 0 [pid 6946] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6944] <... futex resumed>) = 0 [pid 6944] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6944] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6946] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6946] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6946] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6944] <... futex resumed>) = 0 [pid 6944] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6946] <... futex resumed>) = 0 [pid 6944] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6946] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6946] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6946] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6944] <... futex resumed>) = 0 [pid 6944] exit_group(0 [pid 6946] <... futex resumed>) = ? [pid 6944] <... exit_group resumed>) = ? [pid 6946] +++ exited with 0 +++ [pid 6944] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6944, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6950 attached , child_tidptr=0x55556c203690) = 6950 [pid 6950] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6950] setpgid(0, 0) = 0 [pid 6950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6950] write(3, "1000", 4) = 4 [pid 6950] close(3) = 0 executing program [pid 6950] write(1, "executing program\n", 18) = 18 [pid 6950] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6950] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6950] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6950] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6950] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6950] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6950] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6951 attached => {parent_tid=[6951]}, 88) = 6951 [pid 6951] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6950] rt_sigprocmask(SIG_SETMASK, [], [pid 6951] <... rseq resumed>) = 0 [pid 6950] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6951] set_robust_list(0x7fb72497a9a0, 24 [pid 6950] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6951] <... set_robust_list resumed>) = 0 [pid 6950] <... futex resumed>) = 0 [pid 6951] rt_sigprocmask(SIG_SETMASK, [], [pid 6950] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6951] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6951] memfd_create("syzkaller", 0) = 3 [pid 6951] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6947] <... close resumed>) = 0 [pid 6947] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6945] <... futex resumed>) = 0 [pid 6947] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6945] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6945] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6947] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6947] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6949] <... write resumed>) = 16777216 [pid 6947] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6947] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6949] munmap(0x7fb71c400000, 138412032 [pid 6947] <... futex resumed>) = 1 [pid 6945] <... futex resumed>) = 0 [pid 6947] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6945] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6947] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6947] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6945] <... futex resumed>) = 0 [pid 6947] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6945] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6947] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6945] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6947] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6945] exit_group(0 [pid 6947] <... futex resumed>) = ? [pid 6945] <... exit_group resumed>) = ? [pid 6947] +++ exited with 0 +++ [pid 6945] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6945, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6952 attached , child_tidptr=0x55556c203690) = 6952 [pid 6952] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6951] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6949] <... munmap resumed>) = 0 [pid 6952] setpgid(0, 0 [pid 6949] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6952] <... setpgid resumed>) = 0 [pid 6949] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6949] close(3 [pid 6952] <... openat resumed>) = 3 executing program [pid 6952] write(3, "1000", 4) = 4 [pid 6952] close(3) = 0 [pid 6952] write(1, "executing program\n", 18) = 18 [pid 6952] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6952] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6952] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6952] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6952] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6952] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6952] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6953 attached [pid 6953] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6952] <... clone3 resumed> => {parent_tid=[6953]}, 88) = 6953 [pid 6953] <... rseq resumed>) = 0 [pid 6952] rt_sigprocmask(SIG_SETMASK, [], [pid 6953] set_robust_list(0x7fb72497a9a0, 24 [pid 6952] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6953] <... set_robust_list resumed>) = 0 [pid 6952] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6953] rt_sigprocmask(SIG_SETMASK, [], [pid 6952] <... futex resumed>) = 0 [pid 6953] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6953] memfd_create("syzkaller", 0 [pid 6952] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6953] <... memfd_create resumed>) = 3 [pid 6953] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6953] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6951] <... write resumed>) = 16777216 [pid 6949] <... close resumed>) = 0 [pid 6951] munmap(0x7fb71c400000, 138412032 [pid 6949] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6948] <... futex resumed>) = 0 [pid 6949] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6948] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6949] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6948] <... futex resumed>) = 0 [pid 6949] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6948] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6949] <... futex resumed>) = 0 [pid 6948] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6949] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6948] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6949] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6948] <... futex resumed>) = 0 [pid 6949] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6948] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6949] <... futex resumed>) = 0 [pid 6948] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6949] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6948] exit_group(0 [pid 6949] <... futex resumed>) = ? [pid 6948] <... exit_group resumed>) = ? [pid 6949] +++ exited with 0 +++ [pid 6948] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6948, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6954 attached , child_tidptr=0x55556c203690) = 6954 [pid 6954] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6954] setpgid(0, 0) = 0 [pid 6954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6951] <... munmap resumed>) = 0 [pid 6954] <... openat resumed>) = 3 [pid 6954] write(3, "1000", 4) = 4 [pid 6951] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6954] close(3 [pid 6951] <... openat resumed>) = -1 EBUSY (Device or resource busy) executing program [pid 6954] <... close resumed>) = 0 [pid 6954] write(1, "executing program\n", 18) = 18 [pid 6951] close(3 [pid 6954] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6954] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6954] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6954] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6954] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6954] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6954] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6955 attached [pid 6955] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6954] <... clone3 resumed> => {parent_tid=[6955]}, 88) = 6955 [pid 6955] <... rseq resumed>) = 0 [pid 6954] rt_sigprocmask(SIG_SETMASK, [], [pid 6955] set_robust_list(0x7fb72497a9a0, 24 [pid 6954] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6955] <... set_robust_list resumed>) = 0 [pid 6954] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6955] rt_sigprocmask(SIG_SETMASK, [], [pid 6954] <... futex resumed>) = 0 [pid 6955] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6954] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6955] memfd_create("syzkaller", 0) = 3 [pid 6955] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6953] <... write resumed>) = 16777216 [pid 6953] munmap(0x7fb71c400000, 138412032 [pid 6951] <... close resumed>) = 0 [pid 6955] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6953] <... munmap resumed>) = 0 [pid 6951] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6953] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6951] <... futex resumed>) = 1 [pid 6950] <... futex resumed>) = 0 [pid 6953] close(3 [pid 6951] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6950] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6950] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6951] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6951] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6950] <... futex resumed>) = 0 [pid 6950] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6950] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6951] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6951] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6950] <... futex resumed>) = 0 [pid 6950] exit_group(0) = ? [pid 6951] +++ exited with 0 +++ [pid 6950] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6950, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6956 attached , child_tidptr=0x55556c203690) = 6956 [pid 6956] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6956] setpgid(0, 0) = 0 [pid 6956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6956] write(3, "1000", 4) = 4 [pid 6956] close(3) = 0 executing program [pid 6956] write(1, "executing program\n", 18) = 18 [pid 6956] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6956] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6956] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6956] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6956] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6956] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6957]}, 88) = 6957 [pid 6956] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6956] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6956] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6957 attached [pid 6957] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6957] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6957] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6957] memfd_create("syzkaller", 0) = 3 [pid 6957] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6953] <... close resumed>) = 0 [pid 6953] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6953] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6952] <... futex resumed>) = 0 [pid 6955] <... write resumed>) = 16777216 [pid 6952] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6955] munmap(0x7fb71c400000, 138412032 [pid 6952] <... futex resumed>) = 1 [pid 6953] <... futex resumed>) = 0 [pid 6953] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6952] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6953] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6953] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6957] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6953] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6952] <... futex resumed>) = 0 [pid 6955] <... munmap resumed>) = 0 [pid 6952] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6953] <... futex resumed>) = 0 [pid 6952] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6953] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6953] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6955] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6953] <... futex resumed>) = 1 [pid 6952] <... futex resumed>) = 0 [pid 6955] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6953] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6952] exit_group(0 [pid 6953] <... futex resumed>) = ? [pid 6952] <... exit_group resumed>) = ? [pid 6955] close(3 [pid 6953] +++ exited with 0 +++ [pid 6952] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6952, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6958 attached [pid 6958] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6958 [pid 6958] <... set_robust_list resumed>) = 0 [pid 6958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6958] setpgid(0, 0) = 0 [pid 6958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6958] write(3, "1000", 4) = 4 [pid 6958] close(3executing program ) = 0 [pid 6958] write(1, "executing program\n", 18) = 18 [pid 6958] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6958] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6958] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6958] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6958] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6958] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6959 attached => {parent_tid=[6959]}, 88) = 6959 [pid 6959] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6958] rt_sigprocmask(SIG_SETMASK, [], [pid 6959] <... rseq resumed>) = 0 [pid 6958] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6959] set_robust_list(0x7fb72497a9a0, 24 [pid 6958] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6959] <... set_robust_list resumed>) = 0 [pid 6958] <... futex resumed>) = 0 [pid 6959] rt_sigprocmask(SIG_SETMASK, [], [pid 6958] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6959] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6959] memfd_create("syzkaller", 0) = 3 [pid 6959] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6955] <... close resumed>) = 0 [pid 6955] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6959] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6955] <... futex resumed>) = 1 [pid 6954] <... futex resumed>) = 0 [pid 6954] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6954] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6955] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6955] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6955] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6954] <... futex resumed>) = 0 [pid 6954] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6955] <... futex resumed>) = 0 [pid 6954] <... futex resumed>) = 1 [pid 6955] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6954] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6955] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6955] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6954] <... futex resumed>) = 0 [pid 6955] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6954] exit_group(0 [pid 6955] <... futex resumed>) = ? [pid 6954] <... exit_group resumed>) = ? [pid 6955] +++ exited with 0 +++ [pid 6954] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6954, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6957] <... write resumed>) = 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 6957] munmap(0x7fb71c400000, 138412032 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6960 attached , child_tidptr=0x55556c203690) = 6960 [pid 6960] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6960] setpgid(0, 0) = 0 [pid 6960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6960] write(3, "1000", 4) = 4 [pid 6960] close(3) = 0 executing program [pid 6960] write(1, "executing program\n", 18) = 18 [pid 6960] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6957] <... munmap resumed>) = 0 [pid 6960] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6960] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6960] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6960] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6957] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6960] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6957] close(3 [pid 6960] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6960] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6961 attached [pid 6961] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6960] <... clone3 resumed> => {parent_tid=[6961]}, 88) = 6961 [pid 6961] <... rseq resumed>) = 0 [pid 6960] rt_sigprocmask(SIG_SETMASK, [], [pid 6961] set_robust_list(0x7fb72497a9a0, 24 [pid 6960] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6961] <... set_robust_list resumed>) = 0 [pid 6960] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6961] rt_sigprocmask(SIG_SETMASK, [], [pid 6960] <... futex resumed>) = 0 [pid 6961] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6960] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6961] memfd_create("syzkaller", 0) = 3 [pid 6961] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6957] <... close resumed>) = 0 [pid 6957] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6956] <... futex resumed>) = 0 [pid 6956] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6956] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6957] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6957] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6956] <... futex resumed>) = 0 [pid 6956] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6956] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6957] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6957] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6956] <... futex resumed>) = 0 [pid 6956] exit_group(0) = ? [pid 6957] +++ exited with 0 +++ [pid 6956] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6956, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6962 ./strace-static-x86_64: Process 6962 attached [pid 6962] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6962] setpgid(0, 0) = 0 [pid 6962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6962] write(3, "1000", 4) = 4 [pid 6962] close(3) = 0 [pid 6962] write(1, "executing program\n", 18executing program ) = 18 [pid 6962] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6962] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6962] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6962] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6962] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6962] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6962] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6963 attached [pid 6961] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6963] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6962] <... clone3 resumed> => {parent_tid=[6963]}, 88) = 6963 [pid 6963] <... rseq resumed>) = 0 [pid 6962] rt_sigprocmask(SIG_SETMASK, [], [pid 6963] set_robust_list(0x7fb72497a9a0, 24 [pid 6962] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6963] <... set_robust_list resumed>) = 0 [pid 6963] rt_sigprocmask(SIG_SETMASK, [], [pid 6962] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6963] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6962] <... futex resumed>) = 0 [pid 6962] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6963] memfd_create("syzkaller", 0 [pid 6959] <... write resumed>) = 16777216 [pid 6963] <... memfd_create resumed>) = 3 [pid 6963] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6959] munmap(0x7fb71c400000, 138412032 [pid 6963] <... mmap resumed>) = 0x7fb71c400000 [pid 6959] <... munmap resumed>) = 0 [pid 6959] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6959] close(3 [pid 6963] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6959] <... close resumed>) = 0 [pid 6959] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6959] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6958] <... futex resumed>) = 0 [pid 6958] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6959] <... futex resumed>) = 0 [pid 6958] <... futex resumed>) = 1 [pid 6959] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6958] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6959] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6959] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6958] <... futex resumed>) = 0 [pid 6958] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6959] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6958] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6959] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6958] exit_group(0) = ? [pid 6959] <... futex resumed>) = ? [pid 6959] +++ exited with 0 +++ [pid 6958] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6958, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6964 ./strace-static-x86_64: Process 6964 attached [pid 6964] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6964] setpgid(0, 0) = 0 [pid 6964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6964] write(3, "1000", 4) = 4 executing program [pid 6964] close(3) = 0 [pid 6964] write(1, "executing program\n", 18) = 18 [pid 6964] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6961] <... write resumed>) = 16777216 [pid 6964] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6961] munmap(0x7fb71c400000, 138412032 [pid 6964] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6964] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6964] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6964] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6964] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6964] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6965]}, 88) = 6965 ./strace-static-x86_64: Process 6965 attached [pid 6964] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6964] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6964] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6961] <... munmap resumed>) = 0 [pid 6965] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6961] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6965] set_robust_list(0x7fb72497a9a0, 24 [pid 6961] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6965] <... set_robust_list resumed>) = 0 [pid 6965] rt_sigprocmask(SIG_SETMASK, [], [pid 6961] close(3 [pid 6965] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6965] memfd_create("syzkaller", 0) = 3 [pid 6965] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6963] <... write resumed>) = 16777216 [pid 6963] munmap(0x7fb71c400000, 138412032) = 0 [pid 6963] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6963] close(3 [pid 6961] <... close resumed>) = 0 [pid 6961] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6961] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6960] <... futex resumed>) = 0 [pid 6960] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6961] <... futex resumed>) = 0 [pid 6960] <... futex resumed>) = 1 [pid 6961] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6960] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6961] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6961] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6961] <... futex resumed>) = 0 [pid 6960] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6961] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6960] <... futex resumed>) = 0 [pid 6961] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6960] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6961] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6961] <... futex resumed>) = 0 [pid 6960] exit_group(0) = ? [pid 6961] +++ exited with 0 +++ [pid 6960] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6960, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6965] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6966 attached , child_tidptr=0x55556c203690) = 6966 [pid 6966] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6966] setpgid(0, 0) = 0 [pid 6966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6966] write(3, "1000", 4executing program ) = 4 [pid 6966] close(3) = 0 [pid 6966] write(1, "executing program\n", 18) = 18 [pid 6966] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6966] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6966] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6966] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6966] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6966] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6966] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6967 attached [pid 6967] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6966] <... clone3 resumed> => {parent_tid=[6967]}, 88) = 6967 [pid 6967] <... rseq resumed>) = 0 [pid 6967] set_robust_list(0x7fb72497a9a0, 24 [pid 6966] rt_sigprocmask(SIG_SETMASK, [], [pid 6967] <... set_robust_list resumed>) = 0 [pid 6967] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6966] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6967] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6966] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6966] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6967] memfd_create("syzkaller", 0) = 3 [pid 6967] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6963] <... close resumed>) = 0 [pid 6963] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6962] <... futex resumed>) = 0 [pid 6963] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6962] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6962] <... futex resumed>) = 0 [pid 6963] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6962] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6963] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6963] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6962] <... futex resumed>) = 0 [pid 6963] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6962] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6962] <... futex resumed>) = 0 [pid 6963] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6962] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6963] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6963] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6962] <... futex resumed>) = 0 [pid 6963] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6962] exit_group(0 [pid 6963] <... futex resumed>) = ? [pid 6962] <... exit_group resumed>) = ? [pid 6963] +++ exited with 0 +++ [pid 6962] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6962, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6968 attached , child_tidptr=0x55556c203690) = 6968 [pid 6968] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6968] setpgid(0, 0) = 0 [pid 6968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6968] write(3, "1000", 4) = 4 [pid 6968] close(3) = 0 executing program [pid 6968] write(1, "executing program\n", 18) = 18 [pid 6968] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6968] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6968] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6968] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6968] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6968] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6968] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6969 attached => {parent_tid=[6969]}, 88) = 6969 [pid 6969] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6968] rt_sigprocmask(SIG_SETMASK, [], [pid 6969] <... rseq resumed>) = 0 [pid 6968] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6969] set_robust_list(0x7fb72497a9a0, 24 [pid 6968] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6969] <... set_robust_list resumed>) = 0 [pid 6968] <... futex resumed>) = 0 [pid 6969] rt_sigprocmask(SIG_SETMASK, [], [pid 6968] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6969] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6969] memfd_create("syzkaller", 0) = 3 [pid 6969] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6967] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6965] <... write resumed>) = 16777216 [pid 6965] munmap(0x7fb71c400000, 138412032) = 0 [pid 6969] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6965] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6965] close(3 [pid 6967] <... write resumed>) = 16777216 [pid 6967] munmap(0x7fb71c400000, 138412032) = 0 [pid 6967] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6967] close(3 [pid 6965] <... close resumed>) = 0 [pid 6965] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6964] <... futex resumed>) = 0 [pid 6965] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6964] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6965] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6964] <... futex resumed>) = 0 [pid 6965] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6964] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6965] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6965] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6964] <... futex resumed>) = 0 [pid 6964] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6965] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6964] <... futex resumed>) = 0 [pid 6965] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6964] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6965] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6964] <... futex resumed>) = 0 [pid 6964] exit_group(0) = ? [pid 6965] +++ exited with 0 +++ [pid 6964] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6964, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6970 ./strace-static-x86_64: Process 6970 attached [pid 6970] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6970] setpgid(0, 0) = 0 [pid 6970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6970] write(3, "1000", 4) = 4 [pid 6970] close(3executing program ) = 0 [pid 6970] write(1, "executing program\n", 18) = 18 [pid 6970] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6970] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6970] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6970] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6970] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6970] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6970] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6971]}, 88) = 6971 [pid 6970] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6971 attached NULL, 8) = 0 [pid 6970] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6971] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6970] <... futex resumed>) = 0 [pid 6969] <... write resumed>) = 16777216 [pid 6971] <... rseq resumed>) = 0 [pid 6971] set_robust_list(0x7fb72497a9a0, 24 [pid 6970] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6969] munmap(0x7fb71c400000, 138412032 [pid 6971] <... set_robust_list resumed>) = 0 [pid 6971] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6971] memfd_create("syzkaller", 0) = 3 [pid 6971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6969] <... munmap resumed>) = 0 [pid 6969] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6969] close(3 [pid 6967] <... close resumed>) = 0 [pid 6967] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6966] <... futex resumed>) = 0 [pid 6966] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6966] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6967] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6967] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6966] <... futex resumed>) = 0 [pid 6966] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6966] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6967] <... futex resumed>) = 1 [pid 6967] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6967] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6966] <... futex resumed>) = 0 [pid 6966] exit_group(0) = ? [pid 6967] <... futex resumed>) = ? [pid 6967] +++ exited with 0 +++ [pid 6966] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6966, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6972 ./strace-static-x86_64: Process 6972 attached [pid 6972] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6972] setpgid(0, 0) = 0 [pid 6972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6972] write(3, "1000", 4) = 4 [pid 6972] close(3) = 0 [pid 6971] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6972] write(1, "executing program\n", 18executing program ) = 18 [pid 6972] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6972] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6972] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6972] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6972] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6972] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6972] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6973 attached [pid 6973] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6972] <... clone3 resumed> => {parent_tid=[6973]}, 88) = 6973 [pid 6973] set_robust_list(0x7fb72497a9a0, 24 [pid 6972] rt_sigprocmask(SIG_SETMASK, [], [pid 6973] <... set_robust_list resumed>) = 0 [pid 6972] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6973] rt_sigprocmask(SIG_SETMASK, [], [pid 6972] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6973] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6972] <... futex resumed>) = 0 [pid 6973] memfd_create("syzkaller", 0 [pid 6972] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6973] <... memfd_create resumed>) = 3 [pid 6973] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6969] <... close resumed>) = 0 [pid 6969] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6968] <... futex resumed>) = 0 [pid 6968] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6968] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6969] <... futex resumed>) = 1 [pid 6969] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6969] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6968] <... futex resumed>) = 0 [pid 6969] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6968] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6968] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6969] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6969] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6968] <... futex resumed>) = 0 [pid 6968] exit_group(0) = ? [pid 6969] +++ exited with 0 +++ [pid 6968] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6968, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6974 attached , child_tidptr=0x55556c203690) = 6974 [pid 6974] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6974] setpgid(0, 0) = 0 [pid 6974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6974] write(3, "1000", 4) = 4 [pid 6974] close(3) = 0 [pid 6974] write(1, "executing program\n", 18executing program ) = 18 [pid 6974] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6974] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6974] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6973] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6974] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6974] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6974] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6974] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6975]}, 88) = 6975 ./strace-static-x86_64: Process 6975 attached [pid 6975] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6974] rt_sigprocmask(SIG_SETMASK, [], [pid 6975] <... rseq resumed>) = 0 [pid 6975] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6975] rt_sigprocmask(SIG_SETMASK, [], [pid 6974] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6975] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6975] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6974] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6974] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6975] memfd_create("syzkaller", 0) = 3 [pid 6975] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6971] <... write resumed>) = 16777216 [pid 6971] munmap(0x7fb71c400000, 138412032 [pid 6975] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6971] <... munmap resumed>) = 0 [pid 6971] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6971] close(3 [pid 6973] <... write resumed>) = 16777216 [pid 6973] munmap(0x7fb71c400000, 138412032) = 0 [pid 6973] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6973] close(3 [pid 6975] <... write resumed>) = 16777216 [pid 6975] munmap(0x7fb71c400000, 138412032 [pid 6971] <... close resumed>) = 0 [pid 6971] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6970] <... futex resumed>) = 0 [pid 6971] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6970] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6971] <... futex resumed>) = 0 [pid 6970] <... futex resumed>) = 1 [pid 6971] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6970] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6971] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6971] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6971] <... futex resumed>) = 0 [pid 6971] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6970] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6970] <... futex resumed>) = 0 [pid 6971] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6970] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6971] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6971] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6971] <... futex resumed>) = 0 [pid 6971] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6970] exit_group(0 [pid 6971] <... futex resumed>) = ? [pid 6970] <... exit_group resumed>) = ? [pid 6971] +++ exited with 0 +++ [pid 6970] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6970, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program [pid 6975] <... munmap resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6976 ./strace-static-x86_64: Process 6976 attached [pid 6975] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6976] set_robust_list(0x55556c2036a0, 24 [pid 6975] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6976] <... set_robust_list resumed>) = 0 [pid 6976] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6975] close(3 [pid 6976] <... prctl resumed>) = 0 [pid 6976] setpgid(0, 0) = 0 [pid 6976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6976] write(3, "1000", 4) = 4 [pid 6976] close(3) = 0 [pid 6976] write(1, "executing program\n", 18) = 18 [pid 6976] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6976] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6976] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6976] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6976] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6976] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6977]}, 88) = 6977 ./strace-static-x86_64: Process 6977 attached [pid 6976] rt_sigprocmask(SIG_SETMASK, [], [pid 6977] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6976] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6977] set_robust_list(0x7fb72497a9a0, 24 [pid 6976] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6976] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6977] <... set_robust_list resumed>) = 0 [pid 6977] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6977] memfd_create("syzkaller", 0) = 3 [pid 6977] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6973] <... close resumed>) = 0 [pid 6973] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6972] <... futex resumed>) = 0 [pid 6972] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6973] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6972] <... futex resumed>) = 0 [pid 6973] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6972] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6973] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6972] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6973] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6972] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6973] <... futex resumed>) = 0 [pid 6972] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6973] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6973] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6972] <... futex resumed>) = 0 [pid 6973] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6972] exit_group(0 [pid 6973] <... futex resumed>) = ? [pid 6972] <... exit_group resumed>) = ? [pid 6973] +++ exited with 0 +++ [pid 6972] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6972, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6978 attached , child_tidptr=0x55556c203690) = 6978 [pid 6978] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6978] setpgid(0, 0) = 0 [pid 6978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6978] write(3, "1000", 4) = 4 [pid 6978] close(3) = 0 [pid 6978] write(1, "executing program\n", 18executing program ) = 18 [pid 6978] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6978] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6978] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6978] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6978] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6978] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6978] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6979 attached => {parent_tid=[6979]}, 88) = 6979 [pid 6979] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6978] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6979] <... rseq resumed>) = 0 [pid 6978] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6979] set_robust_list(0x7fb72497a9a0, 24 [pid 6978] <... futex resumed>) = 0 [pid 6979] <... set_robust_list resumed>) = 0 [pid 6978] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6979] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6979] memfd_create("syzkaller", 0) = 3 [pid 6979] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6977] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6975] <... close resumed>) = 0 [pid 6975] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6974] <... futex resumed>) = 0 [pid 6975] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6974] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6974] <... futex resumed>) = 0 [pid 6975] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6974] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6975] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6974] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6975] <... futex resumed>) = 0 [pid 6974] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6975] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6974] <... futex resumed>) = 0 [pid 6975] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6974] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6975] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6974] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6975] <... futex resumed>) = 0 [pid 6974] exit_group(0) = ? [pid 6975] +++ exited with 0 +++ [pid 6974] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6974, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6980 ./strace-static-x86_64: Process 6980 attached [pid 6980] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6980] setpgid(0, 0) = 0 [pid 6980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6980] write(3, "1000", 4) = 4 executing program [pid 6980] close(3) = 0 [pid 6980] write(1, "executing program\n", 18) = 18 [pid 6980] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6980] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6980] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6980] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6980] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6980] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6981 attached => {parent_tid=[6981]}, 88) = 6981 [pid 6980] rt_sigprocmask(SIG_SETMASK, [], [pid 6981] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6980] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6981] <... rseq resumed>) = 0 [pid 6981] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6980] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6981] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6980] <... futex resumed>) = 0 [pid 6980] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6981] memfd_create("syzkaller", 0) = 3 [pid 6981] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6979] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6981] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6977] <... write resumed>) = 16777216 [pid 6977] munmap(0x7fb71c400000, 138412032) = 0 [pid 6977] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6977] close(3 [pid 6979] <... write resumed>) = 16777216 [pid 6979] munmap(0x7fb71c400000, 138412032) = 0 [pid 6979] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6979] close(3 [pid 6977] <... close resumed>) = 0 [pid 6977] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6976] <... futex resumed>) = 0 [pid 6977] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6976] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6977] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6976] <... futex resumed>) = 0 [pid 6977] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6976] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6977] <... futex resumed>) = 0 [pid 6976] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6977] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6976] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6976] <... futex resumed>) = 0 [pid 6977] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6976] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6977] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6977] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6976] <... futex resumed>) = 0 [pid 6977] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6976] exit_group(0 [pid 6977] <... futex resumed>) = ? [pid 6976] <... exit_group resumed>) = ? [pid 6977] +++ exited with 0 +++ [pid 6976] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6976, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6982 attached , child_tidptr=0x55556c203690) = 6982 [pid 6982] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6981] <... write resumed>) = 16777216 [pid 6982] setpgid(0, 0 [pid 6981] munmap(0x7fb71c400000, 138412032 [pid 6982] <... setpgid resumed>) = 0 [pid 6982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6982] write(3, "1000", 4) = 4 [pid 6982] close(3) = 0 [pid 6982] write(1, "executing program\n", 18executing program ) = 18 [pid 6982] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6982] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 6981] <... munmap resumed>) = 0 [pid 6982] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6982] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6981] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6982] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6981] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6982] <... mmap resumed>) = 0x7fb72495a000 [pid 6981] close(3 [pid 6982] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6982] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6982] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6983 attached => {parent_tid=[6983]}, 88) = 6983 [pid 6983] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6982] rt_sigprocmask(SIG_SETMASK, [], [pid 6983] <... rseq resumed>) = 0 [pid 6982] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6983] set_robust_list(0x7fb72497a9a0, 24 [pid 6982] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6983] <... set_robust_list resumed>) = 0 [pid 6982] <... futex resumed>) = 0 [pid 6983] rt_sigprocmask(SIG_SETMASK, [], [pid 6982] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6983] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6983] memfd_create("syzkaller", 0) = 3 [pid 6983] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6979] <... close resumed>) = 0 [pid 6979] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6979] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6978] <... futex resumed>) = 0 [pid 6978] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6979] <... futex resumed>) = 0 [pid 6978] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6979] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6979] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6978] <... futex resumed>) = 0 [pid 6979] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6978] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6978] <... futex resumed>) = 0 [pid 6979] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6978] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6979] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6979] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6978] <... futex resumed>) = 0 [pid 6979] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6978] exit_group(0 [pid 6979] <... futex resumed>) = ? [pid 6978] <... exit_group resumed>) = ? [pid 6979] +++ exited with 0 +++ [pid 6978] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6978, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6984 attached , child_tidptr=0x55556c203690) = 6984 [pid 6984] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6984] setpgid(0, 0) = 0 [pid 6984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6984] write(3, "1000", 4) = 4 [pid 6984] close(3) = 0 [pid 6984] write(1, "executing program\n", 18executing program ) = 18 [pid 6984] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6984] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6984] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6984] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6984] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6984] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6984] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6985 attached => {parent_tid=[6985]}, 88) = 6985 [pid 6983] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6981] <... close resumed>) = 0 [pid 6985] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6984] rt_sigprocmask(SIG_SETMASK, [], [pid 6981] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6980] <... futex resumed>) = 0 [pid 6980] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6981] <... futex resumed>) = 1 [pid 6980] <... futex resumed>) = 0 [pid 6981] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6980] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6981] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6981] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6985] <... rseq resumed>) = 0 [pid 6981] <... futex resumed>) = 1 [pid 6980] <... futex resumed>) = 0 [pid 6984] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6981] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6980] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6981] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6980] <... futex resumed>) = 0 [pid 6981] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6980] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6985] set_robust_list(0x7fb72497a9a0, 24 [pid 6984] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6985] <... set_robust_list resumed>) = 0 [pid 6984] <... futex resumed>) = 0 [pid 6985] rt_sigprocmask(SIG_SETMASK, [], [pid 6984] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6981] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6985] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6985] memfd_create("syzkaller", 0 [pid 6981] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6985] <... memfd_create resumed>) = 3 [pid 6981] <... futex resumed>) = 1 [pid 6980] <... futex resumed>) = 0 [pid 6985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6981] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6980] exit_group(0 [pid 6981] <... futex resumed>) = ? [pid 6980] <... exit_group resumed>) = ? [pid 6981] +++ exited with 0 +++ [pid 6980] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6980, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6986 ./strace-static-x86_64: Process 6986 attached [pid 6986] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6986] setpgid(0, 0) = 0 [pid 6986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6986] write(3, "1000", 4) = 4 [pid 6986] close(3) = 0 [pid 6986] write(1, "executing program\n", 18executing program ) = 18 [pid 6986] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6986] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6986] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6986] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6986] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6986] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6987 attached => {parent_tid=[6987]}, 88) = 6987 [pid 6986] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6987] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6986] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6987] <... rseq resumed>) = 0 [pid 6987] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6987] memfd_create("syzkaller", 0 [pid 6986] <... futex resumed>) = 0 [pid 6987] <... memfd_create resumed>) = 3 [pid 6986] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6987] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6985] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6987] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6983] <... write resumed>) = 16777216 [pid 6983] munmap(0x7fb71c400000, 138412032) = 0 [pid 6983] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6983] close(3 [pid 6987] <... write resumed>) = 16777216 [pid 6987] munmap(0x7fb71c400000, 138412032 [pid 6983] <... close resumed>) = 0 [pid 6983] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6987] <... munmap resumed>) = 0 [pid 6983] <... futex resumed>) = 1 [pid 6982] <... futex resumed>) = 0 [pid 6987] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6983] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6982] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6987] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6985] <... write resumed>) = 16777216 [pid 6983] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6982] <... futex resumed>) = 0 [pid 6987] close(3 [pid 6983] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6982] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6985] munmap(0x7fb71c400000, 138412032 [pid 6983] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6982] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6982] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6982] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6983] <... futex resumed>) = 1 [pid 6983] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6982] <... futex resumed>) = 0 [pid 6983] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6982] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=48000000} [pid 6983] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6982] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6983] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6982] exit_group(0 [pid 6983] <... futex resumed>) = ? [pid 6982] <... exit_group resumed>) = ? [pid 6983] +++ exited with 0 +++ [pid 6982] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6982, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 6985] <... munmap resumed>) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 6985] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6985] close(3 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 6988 ./strace-static-x86_64: Process 6988 attached [pid 6988] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6988] setpgid(0, 0) = 0 [pid 6988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6988] write(3, "1000", 4) = 4 [pid 6988] close(3) = 0 executing program [pid 6988] write(1, "executing program\n", 18) = 18 [pid 6988] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6988] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6988] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6988] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6988] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6988] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6989 attached => {parent_tid=[6989]}, 88) = 6989 [pid 6989] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6988] rt_sigprocmask(SIG_SETMASK, [], [pid 6989] <... rseq resumed>) = 0 [pid 6988] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6989] set_robust_list(0x7fb72497a9a0, 24 [pid 6988] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6989] <... set_robust_list resumed>) = 0 [pid 6988] <... futex resumed>) = 0 [pid 6989] rt_sigprocmask(SIG_SETMASK, [], [pid 6988] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6989] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6989] memfd_create("syzkaller", 0) = 3 [pid 6989] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6987] <... close resumed>) = 0 [pid 6987] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6986] <... futex resumed>) = 0 [pid 6987] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6986] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6987] <... futex resumed>) = 0 [pid 6986] <... futex resumed>) = 1 [pid 6986] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6987] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6987] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6986] <... futex resumed>) = 0 [pid 6987] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6986] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6987] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6987] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6986] <... futex resumed>) = 0 [pid 6987] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6986] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6987] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6986] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6986] exit_group(0 [pid 6987] <... futex resumed>) = ? [pid 6986] <... exit_group resumed>) = ? [pid 6987] +++ exited with 0 +++ [pid 6986] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6986, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6990 attached , child_tidptr=0x55556c203690) = 6990 [pid 6985] <... close resumed>) = 0 [pid 6990] set_robust_list(0x55556c2036a0, 24 [pid 6985] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6990] <... set_robust_list resumed>) = 0 [pid 6985] <... futex resumed>) = 1 [pid 6984] <... futex resumed>) = 0 [pid 6990] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6985] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6984] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6990] <... prctl resumed>) = 0 [pid 6985] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6984] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6990] setpgid(0, 0 [pid 6985] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6984] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6985] <... futex resumed>) = 0 [pid 6990] <... setpgid resumed>) = 0 [pid 6985] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6984] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6984] <... futex resumed>) = 0 [pid 6985] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6984] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6990] <... openat resumed>) = 3 [pid 6985] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6984] <... futex resumed>) = 0 [pid 6985] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6984] exit_group(0 [pid 6990] write(3, "1000", 4 [pid 6985] <... futex resumed>) = ? [pid 6984] <... exit_group resumed>) = ? [pid 6990] <... write resumed>) = 4 [pid 6985] +++ exited with 0 +++ [pid 6990] close(3executing program ) = 0 [pid 6990] write(1, "executing program\n", 18) = 18 [pid 6990] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6990] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6990] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6990] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6990] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6989] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6984] +++ exited with 0 +++ [pid 6990] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6984, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=41 /* 0.41 s */} --- [pid 6990] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6990] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6991 attached [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6990] <... clone3 resumed> => {parent_tid=[6991]}, 88) = 6991 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6991] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 6990] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6990] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6990] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6991] <... rseq resumed>) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6992 attached [pid 6991] set_robust_list(0x7fb72497a9a0, 24 [pid 6992] set_robust_list(0x55556c2036a0, 24 [pid 6991] <... set_robust_list resumed>) = 0 [pid 6992] <... set_robust_list resumed>) = 0 [pid 6991] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6992 [pid 6992] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6991] memfd_create("syzkaller", 0 [pid 6992] <... prctl resumed>) = 0 [pid 6991] <... memfd_create resumed>) = 3 [pid 6992] setpgid(0, 0 [pid 6991] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6992] <... setpgid resumed>) = 0 [pid 6991] <... mmap resumed>) = 0x7fb71c400000 [pid 6992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6992] write(3, "1000", 4) = 4 [pid 6992] close(3) = 0 executing program [pid 6992] write(1, "executing program\n", 18) = 18 [pid 6992] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6992] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6992] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6992] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6992] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6992] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6992] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6993 attached => {parent_tid=[6993]}, 88) = 6993 [pid 6992] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6992] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6992] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6993] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6993] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6993] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6993] memfd_create("syzkaller", 0) = 3 [pid 6993] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6991] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6989] <... write resumed>) = 16777216 [pid 6989] munmap(0x7fb71c400000, 138412032) = 0 [pid 6993] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6989] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6989] close(3 [pid 6991] <... write resumed>) = 16777216 [pid 6991] munmap(0x7fb71c400000, 138412032) = 0 [pid 6991] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6991] close(3 [pid 6989] <... close resumed>) = 0 [pid 6989] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6988] <... futex resumed>) = 0 [pid 6989] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6988] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6989] <... futex resumed>) = 0 [pid 6988] <... futex resumed>) = 1 [pid 6989] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6988] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6989] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6989] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6989] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6988] <... futex resumed>) = 0 [pid 6989] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6988] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6989] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6988] <... futex resumed>) = 0 [pid 6989] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6989] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6988] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6989] <... futex resumed>) = 0 [pid 6988] exit_group(0 [pid 6989] ???( [pid 6988] <... exit_group resumed>) = ? [pid 6989] <... ??? resumed>) = ? [pid 6989] +++ exited with 0 +++ [pid 6988] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6988, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6994 attached [pid 6994] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6994] setpgid(0, 0) = 0 [pid 6994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6994] write(3, "1000", 4) = 4 [pid 6994] close(3) = 0 executing program [pid 6994] write(1, "executing program\n", 18) = 18 [pid 6994] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6994] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 6994 [pid 6994] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6994] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6994] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6994] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6994] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[6995]}, 88) = 6995 ./strace-static-x86_64: Process 6995 attached [pid 6994] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6994] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6994] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6995] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6995] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6995] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6995] memfd_create("syzkaller", 0 [pid 6993] <... write resumed>) = 16777216 [pid 6995] <... memfd_create resumed>) = 3 [pid 6995] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6993] munmap(0x7fb71c400000, 138412032 [pid 6991] <... close resumed>) = 0 [pid 6993] <... munmap resumed>) = 0 [pid 6991] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6993] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6993] close(3 [pid 6991] <... futex resumed>) = 1 [pid 6990] <... futex resumed>) = 0 [pid 6991] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6990] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6991] <... futex resumed>) = 0 [pid 6990] <... futex resumed>) = 1 [pid 6991] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 6990] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6991] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6990] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6991] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6990] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6991] <... futex resumed>) = 0 [pid 6990] <... futex resumed>) = 1 [pid 6991] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6990] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6991] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6991] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6990] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6991] <... futex resumed>) = 0 [pid 6991] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6990] exit_group(0 [pid 6991] <... futex resumed>) = ? [pid 6990] <... exit_group resumed>) = ? [pid 6991] +++ exited with 0 +++ [pid 6990] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6990, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6996 attached , child_tidptr=0x55556c203690) = 6996 [pid 6996] set_robust_list(0x55556c2036a0, 24) = 0 [pid 6996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6996] setpgid(0, 0) = 0 [pid 6996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6995] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6996] <... openat resumed>) = 3 [pid 6996] write(3, "1000", 4executing program ) = 4 [pid 6996] close(3) = 0 [pid 6996] write(1, "executing program\n", 18) = 18 [pid 6996] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6996] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6996] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6996] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6996] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6996] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6996] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6997 attached [pid 6997] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6996] <... clone3 resumed> => {parent_tid=[6997]}, 88) = 6997 [pid 6997] set_robust_list(0x7fb72497a9a0, 24 [pid 6996] rt_sigprocmask(SIG_SETMASK, [], [pid 6997] <... set_robust_list resumed>) = 0 [pid 6996] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6997] rt_sigprocmask(SIG_SETMASK, [], [pid 6996] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6997] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6996] <... futex resumed>) = 0 [pid 6997] memfd_create("syzkaller", 0 [pid 6996] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6997] <... memfd_create resumed>) = 3 [pid 6997] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6993] <... close resumed>) = 0 [pid 6993] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6992] <... futex resumed>) = 0 [pid 6993] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6992] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6993] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6992] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6993] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6992] <... futex resumed>) = 0 [pid 6993] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6992] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6993] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6992] <... futex resumed>) = 0 [pid 6993] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6992] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6993] <... futex resumed>) = 0 [pid 6992] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6993] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6992] exit_group(0 [pid 6993] <... futex resumed>) = ? [pid 6992] <... exit_group resumed>) = ? [pid 6993] +++ exited with 0 +++ [pid 6992] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6992, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 6997] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6998 attached [pid 6998] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 6998 [pid 6998] <... set_robust_list resumed>) = 0 [pid 6998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6998] setpgid(0, 0) = 0 [pid 6998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6998] write(3, "1000", 4) = 4 [pid 6998] close(3) = 0 [pid 6998] write(1, "executing program\n", 18executing program ) = 18 [pid 6998] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6998] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 6998] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6998] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 6998] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6998] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6998] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 6999 attached => {parent_tid=[6999]}, 88) = 6999 [pid 6998] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6998] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6998] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6999] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 6999] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 6999] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6999] memfd_create("syzkaller", 0) = 3 [pid 6999] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6995] <... write resumed>) = 16777216 [pid 6995] munmap(0x7fb71c400000, 138412032) = 0 [pid 6995] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6995] close(3 [pid 6997] <... write resumed>) = 16777216 [pid 6997] munmap(0x7fb71c400000, 138412032 [pid 6999] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6997] <... munmap resumed>) = 0 [pid 6997] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6997] close(3 [pid 6995] <... close resumed>) = 0 [pid 6995] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6994] <... futex resumed>) = 0 [pid 6995] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6994] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6995] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6994] <... futex resumed>) = 0 [pid 6995] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6994] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6995] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6995] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6994] <... futex resumed>) = 0 [pid 6995] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6994] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6995] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6994] <... futex resumed>) = 0 [pid 6995] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6995] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6994] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6995] <... futex resumed>) = 0 [pid 6995] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6994] exit_group(0 [pid 6995] <... futex resumed>) = ? [pid 6994] <... exit_group resumed>) = ? [pid 6995] +++ exited with 0 +++ [pid 6994] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6994, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=40 /* 0.40 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7000 attached , child_tidptr=0x55556c203690) = 7000 [pid 7000] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7000] setpgid(0, 0) = 0 [pid 7000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7000] write(3, "1000", 4) = 4 [pid 7000] close(3executing program ) = 0 [pid 7000] write(1, "executing program\n", 18) = 18 [pid 7000] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7000] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7000] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7000] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7000] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7000] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7000] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7001 attached => {parent_tid=[7001]}, 88) = 7001 [pid 7001] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7000] rt_sigprocmask(SIG_SETMASK, [], [pid 7001] <... rseq resumed>) = 0 [pid 7000] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7001] set_robust_list(0x7fb72497a9a0, 24 [pid 7000] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7001] <... set_robust_list resumed>) = 0 [pid 7000] <... futex resumed>) = 0 [pid 6997] <... close resumed>) = 0 [pid 7001] rt_sigprocmask(SIG_SETMASK, [], [pid 7000] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6997] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7001] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6997] <... futex resumed>) = 1 [pid 6996] <... futex resumed>) = 0 [pid 7001] memfd_create("syzkaller", 0 [pid 6996] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6997] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6996] <... futex resumed>) = 0 [pid 6997] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6996] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7001] <... memfd_create resumed>) = 3 [pid 6997] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7001] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6997] <... futex resumed>) = 0 [pid 6996] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6997] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6996] <... futex resumed>) = 0 [pid 7001] <... mmap resumed>) = 0x7fb71c400000 [pid 6997] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6996] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6997] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6997] <... futex resumed>) = 0 [pid 6996] exit_group(0) = ? [pid 6997] +++ exited with 0 +++ [pid 6996] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6996, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7002 ./strace-static-x86_64: Process 7002 attached [pid 7002] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7002] setpgid(0, 0) = 0 [pid 7002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7002] write(3, "1000", 4) = 4 [pid 7002] close(3) = 0 executing program [pid 7002] write(1, "executing program\n", 18) = 18 [pid 7002] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7002] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7002] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7002] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7002] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7002] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7002] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7003 attached => {parent_tid=[7003]}, 88) = 7003 [pid 7002] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7002] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7003] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7002] <... futex resumed>) = 0 [pid 7003] <... rseq resumed>) = 0 [pid 7003] set_robust_list(0x7fb72497a9a0, 24 [pid 7002] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7003] <... set_robust_list resumed>) = 0 [pid 7003] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7003] memfd_create("syzkaller", 0) = 3 [pid 7003] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 6999] <... write resumed>) = 16777216 [pid 7001] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6999] munmap(0x7fb71c400000, 138412032) = 0 [pid 7003] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6999] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6999] close(3) = 0 [pid 6999] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6998] <... futex resumed>) = 0 [pid 6999] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 6998] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6999] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6998] <... futex resumed>) = 0 [pid 6999] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 6998] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6999] <... futex resumed>) = 0 [pid 6999] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6998] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6999] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6998] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6999] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 6998] <... futex resumed>) = 0 [pid 6999] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 6998] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6999] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6998] <... futex resumed>) = 0 [pid 6999] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6998] exit_group(0 [pid 6999] <... futex resumed>) = ? [pid 6998] <... exit_group resumed>) = ? [pid 6999] +++ exited with 0 +++ [pid 7003] <... write resumed>) = 16777216 [pid 6998] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6998, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 7003] munmap(0x7fb71c400000, 138412032 [pid 7001] <... write resumed>) = 16777216 [pid 7001] munmap(0x7fb71c400000, 138412032 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7004 attached [pid 7003] <... munmap resumed>) = 0 [pid 7004] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7003] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7001] <... munmap resumed>) = 0 [pid 7004] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7003] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7001] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7004] <... prctl resumed>) = 0 [pid 7003] close(3 [pid 7001] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7004 [pid 7004] setpgid(0, 0 [pid 7001] close(3 [pid 7004] <... setpgid resumed>) = 0 [pid 7004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7004] write(3, "1000", 4executing program ) = 4 [pid 7004] close(3) = 0 [pid 7004] write(1, "executing program\n", 18) = 18 [pid 7004] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7004] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7004] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7004] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7004] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7004] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7004] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7005 attached [pid 7005] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7004] <... clone3 resumed> => {parent_tid=[7005]}, 88) = 7005 [pid 7005] <... rseq resumed>) = 0 [pid 7004] rt_sigprocmask(SIG_SETMASK, [], [pid 7005] set_robust_list(0x7fb72497a9a0, 24 [pid 7004] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7005] <... set_robust_list resumed>) = 0 [pid 7004] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7005] rt_sigprocmask(SIG_SETMASK, [], [pid 7004] <... futex resumed>) = 0 [pid 7005] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7004] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7005] memfd_create("syzkaller", 0) = 3 [pid 7005] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7001] <... close resumed>) = 0 [pid 7003] <... close resumed>) = 0 [pid 7003] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7002] <... futex resumed>) = 0 [pid 7003] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7002] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7003] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7003] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7005] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7002] <... futex resumed>) = 0 [pid 7001] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7002] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7003] <... futex resumed>) = 0 [pid 7002] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7001] <... futex resumed>) = 1 [pid 7000] <... futex resumed>) = 0 [pid 7003] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7002] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7001] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7000] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7002] <... futex resumed>) = 0 [pid 7001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7000] <... futex resumed>) = 0 [pid 7003] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7002] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7001] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7000] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7003] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7001] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7003] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7001] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7000] <... futex resumed>) = 0 [pid 7003] <... futex resumed>) = 1 [pid 7002] <... futex resumed>) = 0 [pid 7001] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7000] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7003] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7002] exit_group(0 [pid 7001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7000] <... futex resumed>) = 0 [pid 7003] <... futex resumed>) = ? [pid 7002] <... exit_group resumed>) = ? [pid 7001] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7000] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7003] +++ exited with 0 +++ [pid 7002] +++ exited with 0 +++ [pid 7001] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7001] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7002, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 7001] <... futex resumed>) = 1 [pid 7000] <... futex resumed>) = 0 [pid 7001] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7000] exit_group(0 [pid 7001] <... futex resumed>) = ? [pid 7000] <... exit_group resumed>) = ? [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7001] +++ exited with 0 +++ [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7000] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7000, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- ./strace-static-x86_64: Process 7006 attached [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7006] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7006] setpgid(0, 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7006 [pid 7006] <... setpgid resumed>) = 0 [pid 7006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7006] write(3, "1000", 4) = 4 [pid 7006] close(3 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7006] <... close resumed>) = 0 ./strace-static-x86_64: Process 7007 attached executing program [pid 7006] write(1, "executing program\n", 18) = 18 [pid 7006] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7006] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7006] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7006] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7007 [pid 7006] <... mmap resumed>) = 0x7fb72495a000 [pid 7006] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7007] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7006] <... mprotect resumed>) = 0 [pid 7007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7006] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7007] <... prctl resumed>) = 0 [pid 7006] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7007] setpgid(0, 0) = 0 [pid 7006] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7008 attached [pid 7007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7008] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7006] <... clone3 resumed> => {parent_tid=[7008]}, 88) = 7008 [pid 7008] <... rseq resumed>) = 0 [pid 7007] write(3, "1000", 4 [pid 7006] rt_sigprocmask(SIG_SETMASK, [], [pid 7007] <... write resumed>) = 4 [pid 7006] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7007] close(3 [pid 7006] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7007] <... close resumed>) = 0 [pid 7006] <... futex resumed>) = 0 executing program [pid 7007] write(1, "executing program\n", 18 [pid 7006] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7007] <... write resumed>) = 18 [pid 7007] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7007] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7007] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7008] set_robust_list(0x7fb72497a9a0, 24 [pid 7007] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7008] <... set_robust_list resumed>) = 0 [pid 7008] rt_sigprocmask(SIG_SETMASK, [], [pid 7007] <... mprotect resumed>) = 0 [pid 7008] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7007] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7008] memfd_create("syzkaller", 0) = 3 [pid 7008] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7007] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7009]}, 88) = 7009 [pid 7007] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7007] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7007] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7009 attached [pid 7009] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7009] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7009] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7009] memfd_create("syzkaller", 0) = 3 [pid 7009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7005] <... write resumed>) = 16777216 [pid 7005] munmap(0x7fb71c400000, 138412032) = 0 [pid 7005] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7005] close(3 [pid 7009] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7008] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7005] <... close resumed>) = 0 [pid 7005] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7004] <... futex resumed>) = 0 [pid 7004] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7004] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7005] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7005] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7004] <... futex resumed>) = 0 [pid 7004] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7004] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7005] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7005] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7004] <... futex resumed>) = 0 [pid 7004] exit_group(0) = ? [pid 7005] +++ exited with 0 +++ [pid 7004] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7004, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=27 /* 0.27 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7010 attached , child_tidptr=0x55556c203690) = 7010 [pid 7010] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7010] setpgid(0, 0) = 0 [pid 7010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7010] write(3, "1000", 4) = 4 [pid 7010] close(3) = 0 executing program [pid 7010] write(1, "executing program\n", 18) = 18 [pid 7010] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7010] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7010] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7010] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7010] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7010] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7010] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7011 attached => {parent_tid=[7011]}, 88) = 7011 [pid 7011] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7010] rt_sigprocmask(SIG_SETMASK, [], [pid 7011] <... rseq resumed>) = 0 [pid 7011] set_robust_list(0x7fb72497a9a0, 24 [pid 7010] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7011] <... set_robust_list resumed>) = 0 [pid 7010] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7011] rt_sigprocmask(SIG_SETMASK, [], [pid 7010] <... futex resumed>) = 0 [pid 7011] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7010] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7011] memfd_create("syzkaller", 0) = 3 [pid 7011] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7009] <... write resumed>) = 16777216 [pid 7009] munmap(0x7fb71c400000, 138412032) = 0 [pid 7009] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7009] close(3 [pid 7008] <... write resumed>) = 16777216 [pid 7008] munmap(0x7fb71c400000, 138412032) = 0 [pid 7008] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7008] close(3 [pid 7011] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7009] <... close resumed>) = 0 [pid 7009] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7009] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7007] <... futex resumed>) = 0 [pid 7007] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7009] <... futex resumed>) = 0 [pid 7007] <... futex resumed>) = 1 [pid 7009] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7007] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7009] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7009] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7007] <... futex resumed>) = 0 [pid 7009] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7007] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7009] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7007] <... futex resumed>) = 0 [pid 7009] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7007] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7009] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7009] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7007] <... futex resumed>) = 0 [pid 7009] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7007] exit_group(0 [pid 7009] <... futex resumed>) = ? [pid 7007] <... exit_group resumed>) = ? [pid 7009] +++ exited with 0 +++ [pid 7007] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7007, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7012 attached , child_tidptr=0x55556c203690) = 7012 [pid 7012] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7012] setpgid(0, 0) = 0 [pid 7012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7012] write(3, "1000", 4) = 4 [pid 7012] close(3) = 0 executing program [pid 7012] write(1, "executing program\n", 18) = 18 [pid 7012] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7012] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7012] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7012] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7012] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7012] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7012] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7013 attached => {parent_tid=[7013]}, 88) = 7013 [pid 7012] rt_sigprocmask(SIG_SETMASK, [], [pid 7013] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7012] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7012] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7012] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7013] <... rseq resumed>) = 0 [pid 7013] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7013] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7013] memfd_create("syzkaller", 0) = 3 [pid 7013] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7011] <... write resumed>) = 16777216 [pid 7011] munmap(0x7fb71c400000, 138412032 [pid 7008] <... close resumed>) = 0 [pid 7008] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7006] <... futex resumed>) = 0 [pid 7011] <... munmap resumed>) = 0 [pid 7008] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7011] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7006] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7011] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7008] <... futex resumed>) = 0 [pid 7006] <... futex resumed>) = 1 [pid 7011] close(3 [pid 7008] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7006] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7008] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7008] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7008] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7006] <... futex resumed>) = 0 [pid 7006] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7008] <... futex resumed>) = 0 [pid 7006] <... futex resumed>) = 1 [pid 7008] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7006] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7008] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7008] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7006] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7008] <... futex resumed>) = 0 [pid 7008] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7006] exit_group(0 [pid 7008] <... futex resumed>) = ? [pid 7006] <... exit_group resumed>) = ? [pid 7008] +++ exited with 0 +++ [pid 7006] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7006, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=39 /* 0.39 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7013] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7014 attached [pid 7014] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7014 [pid 7014] <... set_robust_list resumed>) = 0 [pid 7014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7014] setpgid(0, 0) = 0 [pid 7014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7014] write(3, "1000", 4) = 4 [pid 7014] close(3) = 0 [pid 7014] write(1, "executing program\n", 18executing program ) = 18 [pid 7014] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7014] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7014] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7014] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7014] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7014] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7015 attached => {parent_tid=[7015]}, 88) = 7015 [pid 7015] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7014] rt_sigprocmask(SIG_SETMASK, [], [pid 7015] set_robust_list(0x7fb72497a9a0, 24 [pid 7014] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7015] <... set_robust_list resumed>) = 0 [pid 7014] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7015] rt_sigprocmask(SIG_SETMASK, [], [pid 7014] <... futex resumed>) = 0 [pid 7015] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7014] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7015] memfd_create("syzkaller", 0) = 3 [pid 7015] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7011] <... close resumed>) = 0 [pid 7011] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7010] <... futex resumed>) = 0 [pid 7010] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7011] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7010] <... futex resumed>) = 0 [pid 7011] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7010] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7011] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7010] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7010] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7011] <... futex resumed>) = 1 [pid 7010] <... futex resumed>) = 0 [pid 7011] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7010] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=48000000} [pid 7011] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7011] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7010] <... futex resumed>) = 0 [pid 7011] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7010] exit_group(0 [pid 7011] <... futex resumed>) = ? [pid 7010] <... exit_group resumed>) = ? [pid 7011] +++ exited with 0 +++ [pid 7010] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7010, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7016 ./strace-static-x86_64: Process 7016 attached [pid 7016] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7016] setpgid(0, 0) = 0 [pid 7016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7016] write(3, "1000", 4) = 4 [pid 7016] close(3executing program ) = 0 [pid 7016] write(1, "executing program\n", 18) = 18 [pid 7016] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7016] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7016] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7016] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7016] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7016] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7016] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7017 attached [pid 7017] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7016] <... clone3 resumed> => {parent_tid=[7017]}, 88) = 7017 [pid 7017] <... rseq resumed>) = 0 [pid 7016] rt_sigprocmask(SIG_SETMASK, [], [pid 7017] set_robust_list(0x7fb72497a9a0, 24 [pid 7016] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7017] <... set_robust_list resumed>) = 0 [pid 7016] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7017] rt_sigprocmask(SIG_SETMASK, [], [pid 7016] <... futex resumed>) = 0 [pid 7017] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7016] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7017] memfd_create("syzkaller", 0) = 3 [pid 7017] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7015] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7013] <... write resumed>) = 16777216 [pid 7013] munmap(0x7fb71c400000, 138412032) = 0 [pid 7013] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7013] close(3 [pid 7017] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7015] <... write resumed>) = 16777216 [pid 7015] munmap(0x7fb71c400000, 138412032) = 0 [pid 7015] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7015] close(3 [pid 7017] <... write resumed>) = 16777216 [pid 7017] munmap(0x7fb71c400000, 138412032 [pid 7013] <... close resumed>) = 0 [pid 7017] <... munmap resumed>) = 0 [pid 7013] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7017] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7013] <... futex resumed>) = 1 [pid 7012] <... futex resumed>) = 0 [pid 7017] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7013] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7012] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7017] close(3 [pid 7013] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7012] <... futex resumed>) = 0 [pid 7012] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7013] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7013] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7012] <... futex resumed>) = 0 [pid 7013] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7012] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7013] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7012] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7013] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7012] <... futex resumed>) = 0 [pid 7013] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7012] exit_group(0 [pid 7013] <... futex resumed>) = ? [pid 7012] <... exit_group resumed>) = ? [pid 7013] +++ exited with 0 +++ [pid 7012] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7012, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7018 ./strace-static-x86_64: Process 7018 attached [pid 7018] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7018] setpgid(0, 0) = 0 [pid 7018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7018] write(3, "1000", 4) = 4 [pid 7018] close(3) = 0 [pid 7018] write(1, "executing program\n", 18executing program ) = 18 [pid 7018] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7018] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7018] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7018] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7018] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7018] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7018] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7019]}, 88) = 7019 ./strace-static-x86_64: Process 7019 attached [pid 7018] rt_sigprocmask(SIG_SETMASK, [], [pid 7019] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7018] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7019] <... rseq resumed>) = 0 [pid 7018] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7019] set_robust_list(0x7fb72497a9a0, 24 [pid 7018] <... futex resumed>) = 0 [pid 7019] <... set_robust_list resumed>) = 0 [pid 7018] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7019] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7019] memfd_create("syzkaller", 0) = 3 [pid 7019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7017] <... close resumed>) = 0 [pid 7015] <... close resumed>) = 0 [pid 7017] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7015] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7017] <... futex resumed>) = 1 [pid 7016] <... futex resumed>) = 0 [pid 7017] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7016] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7015] <... futex resumed>) = 1 [pid 7014] <... futex resumed>) = 0 [pid 7017] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7016] <... futex resumed>) = 0 [pid 7015] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7014] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7017] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7016] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7015] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7014] <... futex resumed>) = 0 [pid 7017] <... futex resumed>) = 0 [pid 7016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7015] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7014] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7017] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7016] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7015] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7016] <... futex resumed>) = 0 [pid 7017] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7016] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7015] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7017] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7017] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7015] <... futex resumed>) = 1 [pid 7014] <... futex resumed>) = 0 [pid 7017] <... futex resumed>) = 1 [pid 7016] <... futex resumed>) = 0 [pid 7015] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7014] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7017] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7016] exit_group(0 [pid 7015] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7014] <... futex resumed>) = 0 [pid 7017] <... futex resumed>) = ? [pid 7016] <... exit_group resumed>) = ? [pid 7015] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7014] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7017] +++ exited with 0 +++ [pid 7016] +++ exited with 0 +++ [pid 7015] <... futex resumed>) = 0 [pid 7014] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7015] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7014] exit_group(0 [pid 7015] <... futex resumed>) = ? [pid 7014] <... exit_group resumed>) = ? [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7016, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 7015] +++ exited with 0 +++ [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7014] +++ exited with 0 +++ ./strace-static-x86_64: Process 7020 attached [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7014, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7020 [pid 7020] set_robust_list(0x55556c2036a0, 24 [pid 7019] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7020] <... set_robust_list resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7020] <... prctl resumed>) = 0 [pid 7020] setpgid(0, 0) = 0 [pid 7020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7021 attached [pid 7020] write(3, "1000", 4) = 4 [pid 7021] set_robust_list(0x55556c2036a0, 24 [pid 7020] close(3 [pid 7021] <... set_robust_list resumed>) = 0 [pid 7020] <... close resumed>) = 0 executing program [pid 7021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7020] write(1, "executing program\n", 18) = 18 [pid 7020] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7021 [pid 7020] <... futex resumed>) = 0 [pid 7021] <... prctl resumed>) = 0 [pid 7020] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7021] setpgid(0, 0) = 0 [pid 7020] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7020] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7021] <... openat resumed>) = 3 [pid 7020] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7021] write(3, "1000", 4 [pid 7020] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7021] <... write resumed>) = 4 [pid 7021] close(3) = 0 [pid 7021] write(1, "executing program\n", 18 [pid 7020] <... rt_sigprocmask resumed>[], 8) = 0 executing program [pid 7021] <... write resumed>) = 18 [pid 7020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7022 attached [pid 7021] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7020] <... clone3 resumed> => {parent_tid=[7022]}, 88) = 7022 [pid 7021] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7021] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7020] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7021] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7020] <... futex resumed>) = 0 [pid 7021] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7020] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7021] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7022] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7022] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7022] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7022] memfd_create("syzkaller", 0) = 3 [pid 7021] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7021] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7022] <... mmap resumed>) = 0x7fb71c400000 [pid 7021] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7023 attached => {parent_tid=[7023]}, 88) = 7023 [pid 7023] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7021] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7021] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7023] <... rseq resumed>) = 0 [pid 7021] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7023] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7023] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7023] memfd_create("syzkaller", 0) = 3 [pid 7023] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7022] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7023] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7019] <... write resumed>) = 16777216 [pid 7019] munmap(0x7fb71c400000, 138412032) = 0 [pid 7019] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7019] close(3 [pid 7023] <... write resumed>) = 16777216 [pid 7023] munmap(0x7fb71c400000, 138412032) = 0 [pid 7023] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7023] close(3 [pid 7019] <... close resumed>) = 0 [pid 7019] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7019] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7018] <... futex resumed>) = 0 [pid 7018] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7019] <... futex resumed>) = 0 [pid 7018] <... futex resumed>) = 1 [pid 7019] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7019] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7018] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7019] <... futex resumed>) = 0 [pid 7018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7019] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7018] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7019] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7018] <... futex resumed>) = 0 [pid 7019] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7018] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7019] <... futex resumed>) = 0 [pid 7018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7019] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7018] exit_group(0 [pid 7019] <... futex resumed>) = ? [pid 7018] <... exit_group resumed>) = ? [pid 7022] <... write resumed>) = 16777216 [pid 7019] +++ exited with 0 +++ [pid 7018] +++ exited with 0 +++ [pid 7022] munmap(0x7fb71c400000, 138412032 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7018, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7024 attached , child_tidptr=0x55556c203690) = 7024 [pid 7024] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7024] setpgid(0, 0) = 0 [pid 7024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7024] write(3, "1000", 4) = 4 [pid 7024] close(3) = 0 executing program [pid 7024] write(1, "executing program\n", 18) = 18 [pid 7024] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7024] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7024] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7024] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7022] <... munmap resumed>) = 0 [pid 7022] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7024] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7025 attached [pid 7025] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7024] <... clone3 resumed> => {parent_tid=[7025]}, 88) = 7025 [pid 7025] <... rseq resumed>) = 0 [pid 7024] rt_sigprocmask(SIG_SETMASK, [], [pid 7025] set_robust_list(0x7fb72497a9a0, 24 [pid 7024] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7025] <... set_robust_list resumed>) = 0 [pid 7024] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7025] rt_sigprocmask(SIG_SETMASK, [], [pid 7024] <... futex resumed>) = 0 [pid 7025] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7024] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7025] memfd_create("syzkaller", 0 [pid 7022] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7025] <... memfd_create resumed>) = 3 [pid 7022] close(3 [pid 7025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7023] <... close resumed>) = 0 [pid 7023] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7023] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7021] <... futex resumed>) = 0 [pid 7021] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7021] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7023] <... futex resumed>) = 0 [pid 7023] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7023] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7021] <... futex resumed>) = 0 [pid 7021] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7021] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7023] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7023] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7021] <... futex resumed>) = 0 [pid 7021] exit_group(0) = ? [pid 7023] +++ exited with 0 +++ [pid 7021] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7021, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7026 ./strace-static-x86_64: Process 7026 attached [pid 7026] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7026] setpgid(0, 0) = 0 [pid 7026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7026] write(3, "1000", 4) = 4 [pid 7026] close(3) = 0 [pid 7026] write(1, "executing program\n", 18executing program [pid 7025] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7026] <... write resumed>) = 18 [pid 7026] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7026] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7026] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7026] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7026] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7026] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7026] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7027 attached => {parent_tid=[7027]}, 88) = 7027 [pid 7026] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7026] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7027] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7026] <... futex resumed>) = 0 [pid 7026] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7027] <... rseq resumed>) = 0 [pid 7027] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7027] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7027] memfd_create("syzkaller", 0 [pid 7022] <... close resumed>) = 0 [pid 7027] <... memfd_create resumed>) = 3 [pid 7022] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7027] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7022] <... futex resumed>) = 1 [pid 7020] <... futex resumed>) = 0 [pid 7027] <... mmap resumed>) = 0x7fb71c400000 [pid 7022] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7020] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7020] <... futex resumed>) = 0 [pid 7022] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7020] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7022] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7022] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7020] <... futex resumed>) = 0 [pid 7022] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7020] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7022] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7020] <... futex resumed>) = 0 [pid 7020] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7022] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7020] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7022] <... futex resumed>) = 0 [pid 7022] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7020] exit_group(0 [pid 7022] <... futex resumed>) = ? [pid 7020] <... exit_group resumed>) = ? [pid 7022] +++ exited with 0 +++ [pid 7020] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7020, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7028 attached , child_tidptr=0x55556c203690) = 7028 [pid 7028] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7028] setpgid(0, 0) = 0 [pid 7028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7028] write(3, "1000", 4) = 4 [pid 7028] close(3) = 0 [pid 7028] write(1, "executing program\n", 18executing program ) = 18 [pid 7028] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7028] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7028] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7028] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7028] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7028] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7028] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7029 attached [pid 7029] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7028] <... clone3 resumed> => {parent_tid=[7029]}, 88) = 7029 [pid 7029] set_robust_list(0x7fb72497a9a0, 24 [pid 7028] rt_sigprocmask(SIG_SETMASK, [], [pid 7029] <... set_robust_list resumed>) = 0 [pid 7028] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7029] rt_sigprocmask(SIG_SETMASK, [], [pid 7028] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7029] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7028] <... futex resumed>) = 0 [pid 7029] memfd_create("syzkaller", 0 [pid 7028] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7029] <... memfd_create resumed>) = 3 [pid 7029] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7027] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7029] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7025] <... write resumed>) = 16777216 [pid 7025] munmap(0x7fb71c400000, 138412032) = 0 [pid 7025] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7025] close(3 [pid 7027] <... write resumed>) = 16777216 [pid 7027] munmap(0x7fb71c400000, 138412032) = 0 [pid 7027] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7027] close(3 [pid 7025] <... close resumed>) = 0 [pid 7025] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7025] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7024] <... futex resumed>) = 0 [pid 7024] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7025] <... futex resumed>) = 0 [pid 7024] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7025] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7025] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7024] <... futex resumed>) = 0 [pid 7025] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7024] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7025] <... futex resumed>) = 0 [pid 7024] <... futex resumed>) = 1 [pid 7025] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7024] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7025] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7025] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7024] <... futex resumed>) = 0 [pid 7025] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7024] exit_group(0 [pid 7025] <... futex resumed>) = ? [pid 7024] <... exit_group resumed>) = ? [pid 7025] +++ exited with 0 +++ [pid 7024] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7024, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7030 attached , child_tidptr=0x55556c203690) = 7030 [pid 7030] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7030] setpgid(0, 0) = 0 [pid 7030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7030] write(3, "1000", 4 [pid 7029] <... write resumed>) = 16777216 [pid 7030] <... write resumed>) = 4 [pid 7030] close(3) = 0 executing program [pid 7030] write(1, "executing program\n", 18) = 18 [pid 7030] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7030] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7029] munmap(0x7fb71c400000, 138412032 [pid 7030] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7030] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7030] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7030] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7031 attached => {parent_tid=[7031]}, 88) = 7031 [pid 7031] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7030] rt_sigprocmask(SIG_SETMASK, [], [pid 7031] set_robust_list(0x7fb72497a9a0, 24 [pid 7030] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7031] <... set_robust_list resumed>) = 0 [pid 7030] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7031] rt_sigprocmask(SIG_SETMASK, [], [pid 7030] <... futex resumed>) = 0 [pid 7031] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7030] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7031] memfd_create("syzkaller", 0) = 3 [pid 7031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7029] <... munmap resumed>) = 0 [pid 7029] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7027] <... close resumed>) = 0 [pid 7029] close(3 [pid 7027] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7027] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7026] <... futex resumed>) = 0 [pid 7026] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7027] <... futex resumed>) = 0 [pid 7027] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7026] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7027] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7027] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7026] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7027] <... futex resumed>) = 0 [pid 7027] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7026] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7027] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7026] <... futex resumed>) = 0 [pid 7027] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7026] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7027] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7027] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7026] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7027] <... futex resumed>) = 0 [pid 7027] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7026] exit_group(0 [pid 7027] <... futex resumed>) = ? [pid 7026] <... exit_group resumed>) = ? [pid 7027] +++ exited with 0 +++ [pid 7026] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7026, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7032 attached [pid 7032] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7032 [pid 7032] <... set_robust_list resumed>) = 0 [pid 7032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7032] setpgid(0, 0) = 0 [pid 7032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7032] write(3, "1000", 4) = 4 [pid 7032] close(3) = 0 executing program [pid 7032] write(1, "executing program\n", 18) = 18 [pid 7032] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7032] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7032] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7032] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7032] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7032] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7033 attached => {parent_tid=[7033]}, 88) = 7033 [pid 7033] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7032] rt_sigprocmask(SIG_SETMASK, [], [pid 7033] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7032] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7033] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7032] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7032] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7033] memfd_create("syzkaller", 0) = 3 [pid 7031] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7029] <... close resumed>) = 0 [pid 7029] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7029] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7028] <... futex resumed>) = 0 [pid 7028] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7029] <... futex resumed>) = 0 [pid 7028] <... futex resumed>) = 1 [pid 7029] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7028] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7029] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7029] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7029] <... futex resumed>) = 0 [pid 7029] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7028] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7028] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7029] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7029] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7029] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7028] <... futex resumed>) = 0 [pid 7029] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7028] exit_group(0 [pid 7029] <... futex resumed>) = ? [pid 7028] <... exit_group resumed>) = ? [pid 7029] +++ exited with 0 +++ [pid 7028] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7028, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=39 /* 0.39 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7034 attached , child_tidptr=0x55556c203690) = 7034 [pid 7034] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7034] setpgid(0, 0) = 0 [pid 7034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7034] write(3, "1000", 4) = 4 [pid 7034] close(3executing program ) = 0 [pid 7034] write(1, "executing program\n", 18) = 18 [pid 7034] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7034] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7034] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7034] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7034] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7034] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7035 attached [pid 7035] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7034] <... clone3 resumed> => {parent_tid=[7035]}, 88) = 7035 [pid 7035] <... rseq resumed>) = 0 [pid 7035] set_robust_list(0x7fb72497a9a0, 24 [pid 7034] rt_sigprocmask(SIG_SETMASK, [], [pid 7035] <... set_robust_list resumed>) = 0 [pid 7034] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7034] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7035] rt_sigprocmask(SIG_SETMASK, [], [pid 7034] <... futex resumed>) = 0 [pid 7035] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7034] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7035] memfd_create("syzkaller", 0) = 3 [pid 7035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7033] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7031] <... write resumed>) = 16777216 [pid 7031] munmap(0x7fb71c400000, 138412032 [pid 7035] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7031] <... munmap resumed>) = 0 [pid 7031] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7031] close(3 [pid 7033] <... write resumed>) = 16777216 [pid 7033] munmap(0x7fb71c400000, 138412032) = 0 [pid 7033] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7033] close(3 [pid 7035] <... write resumed>) = 16777216 [pid 7035] munmap(0x7fb71c400000, 138412032 [pid 7031] <... close resumed>) = 0 [pid 7031] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7030] <... futex resumed>) = 0 [pid 7030] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7031] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7030] <... futex resumed>) = 0 [pid 7031] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7030] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7031] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7030] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7031] <... futex resumed>) = 0 [pid 7030] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7031] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7030] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7031] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7031] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7030] <... futex resumed>) = 0 [pid 7031] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7030] exit_group(0) = ? [pid 7031] <... futex resumed>) = ? [pid 7031] +++ exited with 0 +++ [pid 7030] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7030, si_uid=0, si_status=0, si_utime=0, si_stime=39 /* 0.39 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7035] <... munmap resumed>) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7035] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 7036 attached ) = -1 EBUSY (Device or resource busy) [pid 7035] close(3 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7036 [pid 7036] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7036] setpgid(0, 0) = 0 [pid 7036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7036] write(3, "1000", 4executing program ) = 4 [pid 7036] close(3) = 0 [pid 7036] write(1, "executing program\n", 18) = 18 [pid 7036] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7036] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7036] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7036] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7036] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7037 attached => {parent_tid=[7037]}, 88) = 7037 [pid 7037] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7036] rt_sigprocmask(SIG_SETMASK, [], [pid 7033] <... close resumed>) = 0 [pid 7036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7036] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7033] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7036] <... futex resumed>) = 0 [pid 7033] <... futex resumed>) = 1 [pid 7036] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7033] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7037] <... rseq resumed>) = 0 [pid 7037] set_robust_list(0x7fb72497a9a0, 24 [pid 7032] <... futex resumed>) = 0 [pid 7037] <... set_robust_list resumed>) = 0 [pid 7037] rt_sigprocmask(SIG_SETMASK, [], [pid 7032] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7037] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7037] memfd_create("syzkaller", 0) = 3 [pid 7033] <... futex resumed>) = 0 [pid 7032] <... futex resumed>) = 1 [pid 7032] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7033] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7033] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7033] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7032] <... futex resumed>) = 0 [pid 7032] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7033] <... futex resumed>) = 0 [pid 7032] <... futex resumed>) = 1 [pid 7033] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7032] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7033] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7033] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7032] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7033] <... futex resumed>) = 0 [pid 7033] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7032] exit_group(0 [pid 7033] <... futex resumed>) = ? [pid 7032] <... exit_group resumed>) = ? [pid 7033] +++ exited with 0 +++ [pid 7032] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7032, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7038 attached [pid 7038] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7038 [pid 7038] <... set_robust_list resumed>) = 0 [pid 7038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7038] setpgid(0, 0) = 0 [pid 7038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7038] write(3, "1000", 4) = 4 [pid 7038] close(3) = 0 executing program [pid 7038] write(1, "executing program\n", 18) = 18 [pid 7038] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7038] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7038] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7038] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7038] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7038] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7039 attached [pid 7039] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7038] <... clone3 resumed> => {parent_tid=[7039]}, 88) = 7039 [pid 7039] <... rseq resumed>) = 0 [pid 7038] rt_sigprocmask(SIG_SETMASK, [], [pid 7039] set_robust_list(0x7fb72497a9a0, 24 [pid 7038] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7039] <... set_robust_list resumed>) = 0 [pid 7038] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7039] rt_sigprocmask(SIG_SETMASK, [], [pid 7038] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7039] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7039] memfd_create("syzkaller", 0) = 3 [pid 7039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7037] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7035] <... close resumed>) = 0 [pid 7035] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7034] <... futex resumed>) = 0 [pid 7035] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7034] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7035] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7034] <... futex resumed>) = 0 [pid 7035] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7034] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7035] <... futex resumed>) = 0 [pid 7034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7035] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7034] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7035] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7034] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7035] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7034] <... futex resumed>) = 0 [pid 7035] <... futex resumed>) = 1 [pid 7034] exit_group(0) = ? [pid 7035] +++ exited with 0 +++ [pid 7034] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7034, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7040 attached , child_tidptr=0x55556c203690) = 7040 [pid 7040] set_robust_list(0x55556c2036a0, 24executing program ) = 0 [pid 7040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7040] setpgid(0, 0) = 0 [pid 7040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7040] write(3, "1000", 4) = 4 [pid 7040] close(3) = 0 [pid 7040] write(1, "executing program\n", 18) = 18 [pid 7040] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7040] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7040] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7040] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7040] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7040] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7041 attached => {parent_tid=[7041]}, 88) = 7041 [pid 7040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7040] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7040] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7041] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7041] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7041] memfd_create("syzkaller", 0) = 3 [pid 7041] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7041] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7037] <... write resumed>) = 16777216 [pid 7037] munmap(0x7fb71c400000, 138412032) = 0 [pid 7037] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7037] close(3 [pid 7041] <... write resumed>) = 16777216 [pid 7039] <... write resumed>) = 16777216 [pid 7041] munmap(0x7fb71c400000, 138412032 [pid 7039] munmap(0x7fb71c400000, 138412032) = 0 [pid 7041] <... munmap resumed>) = 0 [pid 7041] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7039] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7041] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7039] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7041] close(3 [pid 7039] close(3 [pid 7037] <... close resumed>) = 0 [pid 7037] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7036] <... futex resumed>) = 0 [pid 7037] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7036] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7037] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7036] <... futex resumed>) = 0 [pid 7037] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7036] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7037] <... futex resumed>) = 0 [pid 7036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7037] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7036] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7036] <... futex resumed>) = 0 [pid 7037] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7036] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7037] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7037] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7036] <... futex resumed>) = 0 [pid 7037] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7036] exit_group(0 [pid 7037] <... futex resumed>) = ? [pid 7036] <... exit_group resumed>) = ? [pid 7037] +++ exited with 0 +++ [pid 7036] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7036, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=39 /* 0.39 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7042 attached , child_tidptr=0x55556c203690) = 7042 [pid 7042] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7042] setpgid(0, 0) = 0 [pid 7042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7042] write(3, "1000", 4) = 4 [pid 7042] close(3) = 0 executing program [pid 7042] write(1, "executing program\n", 18) = 18 [pid 7042] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7042] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7042] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7042] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7042] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7042] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7043 attached => {parent_tid=[7043]}, 88) = 7043 [pid 7043] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7042] rt_sigprocmask(SIG_SETMASK, [], [pid 7043] <... rseq resumed>) = 0 [pid 7042] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7043] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7042] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7043] rt_sigprocmask(SIG_SETMASK, [], [pid 7042] <... futex resumed>) = 0 [pid 7043] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7042] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7043] memfd_create("syzkaller", 0) = 3 [pid 7043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7039] <... close resumed>) = 0 [pid 7041] <... close resumed>) = 0 [pid 7041] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7040] <... futex resumed>) = 0 [pid 7041] <... futex resumed>) = 1 [pid 7040] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7041] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7040] <... futex resumed>) = 0 [pid 7041] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7040] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7041] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7040] <... futex resumed>) = 0 [pid 7040] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7040] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7041] <... futex resumed>) = 1 [pid 7039] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7041] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7039] <... futex resumed>) = 1 [pid 7038] <... futex resumed>) = 0 [pid 7041] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7039] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7038] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7041] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7039] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7038] <... futex resumed>) = 0 [pid 7041] <... futex resumed>) = 1 [pid 7040] <... futex resumed>) = 0 [pid 7039] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7038] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7041] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7040] exit_group(0 [pid 7039] <... futex resumed>) = 0 [pid 7038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7041] <... futex resumed>) = ? [pid 7040] <... exit_group resumed>) = ? [pid 7038] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7039] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7038] <... futex resumed>) = 0 [pid 7039] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7038] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7039] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7039] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7038] exit_group(0 [pid 7039] <... futex resumed>) = ? [pid 7038] <... exit_group resumed>) = ? [pid 7039] +++ exited with 0 +++ [pid 7041] +++ exited with 0 +++ [pid 7040] +++ exited with 0 +++ [pid 7038] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7038, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7040, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 5869] <... restart_syscall resumed>) = 0 [pid 7043] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7044 attached [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7044] set_robust_list(0x55556c2036a0, 24./strace-static-x86_64: Process 7045 attached ) = 0 [pid 7044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7045] set_robust_list(0x55556c2036a0, 24 [pid 7044] <... prctl resumed>) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7044 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7045 [pid 7045] <... set_robust_list resumed>) = 0 [pid 7044] setpgid(0, 0 [pid 7045] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7044] <... setpgid resumed>) = 0 [pid 7045] <... prctl resumed>) = 0 [pid 7044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7045] setpgid(0, 0) = 0 [pid 7045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7044] <... openat resumed>) = 3 [pid 7045] <... openat resumed>) = 3 [pid 7044] write(3, "1000", 4) = 4 [pid 7045] write(3, "1000", 4 [pid 7044] close(3 [pid 7045] <... write resumed>) = 4 [pid 7045] close(3) = 0 executing program [pid 7045] write(1, "executing program\n", 18) = 18 [pid 7045] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7044] <... close resumed>) = 0 [pid 7045] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7044] write(1, "executing program\n", 18executing program ) = 18 [pid 7044] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7044] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7044] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7044] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7044] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7044] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7046 attached [pid 7046] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7045] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7045] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7046] set_robust_list(0x7fb72497a9a0, 24 [pid 7045] <... mmap resumed>) = 0x7fb72495a000 [pid 7044] <... clone3 resumed> => {parent_tid=[7046]}, 88) = 7046 [pid 7046] <... set_robust_list resumed>) = 0 [pid 7045] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7044] rt_sigprocmask(SIG_SETMASK, [], [pid 7046] rt_sigprocmask(SIG_SETMASK, [], [pid 7045] <... mprotect resumed>) = 0 [pid 7044] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7046] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7045] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7044] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7045] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7046] memfd_create("syzkaller", 0 [pid 7045] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7044] <... futex resumed>) = 0 ./strace-static-x86_64: Process 7047 attached [pid 7044] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7047] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7045] <... clone3 resumed> => {parent_tid=[7047]}, 88) = 7047 [pid 7047] <... rseq resumed>) = 0 [pid 7045] rt_sigprocmask(SIG_SETMASK, [], [pid 7047] set_robust_list(0x7fb72497a9a0, 24 [pid 7045] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7047] <... set_robust_list resumed>) = 0 [pid 7045] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7047] rt_sigprocmask(SIG_SETMASK, [], [pid 7045] <... futex resumed>) = 0 [pid 7047] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7045] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7047] memfd_create("syzkaller", 0 [pid 7046] <... memfd_create resumed>) = 3 [pid 7046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7047] <... memfd_create resumed>) = 3 [pid 7047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7046] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7043] <... write resumed>) = 16777216 [pid 7043] munmap(0x7fb71c400000, 138412032) = 0 [pid 7043] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7043] close(3 [pid 7047] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7046] <... write resumed>) = 16777216 [pid 7046] munmap(0x7fb71c400000, 138412032 [pid 7043] <... close resumed>) = 0 [pid 7046] <... munmap resumed>) = 0 [pid 7046] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7043] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7046] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7043] <... futex resumed>) = 1 [pid 7042] <... futex resumed>) = 0 [pid 7043] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7042] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7046] close(3 [pid 7043] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7042] <... futex resumed>) = 0 [pid 7042] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7043] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7043] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7042] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7043] <... futex resumed>) = 0 [pid 7042] <... futex resumed>) = 1 [pid 7043] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7042] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7043] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7043] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7043] <... futex resumed>) = 0 [pid 7042] exit_group(0) = ? [pid 7047] <... write resumed>) = 16777216 [pid 7043] +++ exited with 0 +++ [pid 7042] +++ exited with 0 +++ [pid 7047] munmap(0x7fb71c400000, 138412032 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7042, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7048 ./strace-static-x86_64: Process 7048 attached [pid 7048] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7048] setpgid(0, 0) = 0 [pid 7048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7047] <... munmap resumed>) = 0 [pid 7048] write(3, "1000", 4 [pid 7047] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7048] <... write resumed>) = 4 [pid 7047] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7048] close(3) = 0 [pid 7048] write(1, "executing program\n", 18 [pid 7047] close(3executing program [pid 7048] <... write resumed>) = 18 [pid 7048] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7048] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7048] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7048] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7048] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7048] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7049 attached => {parent_tid=[7049]}, 88) = 7049 [pid 7048] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7048] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7048] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7049] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7049] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7049] memfd_create("syzkaller", 0) = 3 [pid 7049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7046] <... close resumed>) = 0 [pid 7047] <... close resumed>) = 0 [pid 7047] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7046] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7047] <... futex resumed>) = 1 [pid 7045] <... futex resumed>) = 0 [pid 7047] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7046] <... futex resumed>) = 1 [pid 7045] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7047] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7045] <... futex resumed>) = 0 [pid 7044] <... futex resumed>) = 0 [pid 7047] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7046] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7045] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7044] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7047] <... futex resumed>) = 0 [pid 7046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7044] <... futex resumed>) = 0 [pid 7047] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7046] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7045] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7044] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7046] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7045] <... futex resumed>) = 0 [pid 7047] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7046] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7045] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7047] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7046] <... futex resumed>) = 1 [pid 7044] <... futex resumed>) = 0 [pid 7047] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7046] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7047] <... futex resumed>) = 1 [pid 7045] <... futex resumed>) = 0 [pid 7044] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7047] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7045] exit_group(0 [pid 7044] <... futex resumed>) = 0 [pid 7047] <... futex resumed>) = ? [pid 7046] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7045] <... exit_group resumed>) = ? [pid 7047] +++ exited with 0 +++ [pid 7046] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7044] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7046] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7044] <... futex resumed>) = 0 [pid 7046] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7044] exit_group(0 [pid 7046] <... futex resumed>) = ? [pid 7044] <... exit_group resumed>) = ? [pid 7046] +++ exited with 0 +++ [pid 7045] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7045, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7049] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7044] +++ exited with 0 +++ [pid 5868] <... restart_syscall resumed>) = 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7044, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7050 attached ./strace-static-x86_64: Process 7051 attached [pid 7051] set_robust_list(0x55556c2036a0, 24 [pid 7050] set_robust_list(0x55556c2036a0, 24 [pid 7051] <... set_robust_list resumed>) = 0 [pid 7050] <... set_robust_list resumed>) = 0 [pid 7051] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7051 [pid 7051] <... prctl resumed>) = 0 [pid 7050] <... prctl resumed>) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7050 [pid 7051] setpgid(0, 0) = 0 [pid 7050] setpgid(0, 0 [pid 7051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7050] <... setpgid resumed>) = 0 [pid 7050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7051] <... openat resumed>) = 3 [pid 7050] <... openat resumed>) = 3 [pid 7051] write(3, "1000", 4) = 4 [pid 7050] write(3, "1000", 4 [pid 7051] close(3 [pid 7050] <... write resumed>) = 4 [pid 7051] <... close resumed>) = 0 [pid 7050] close(3 [pid 7051] write(1, "executing program\n", 18 [pid 7050] <... close resumed>) = 0 executing program executing program [pid 7051] <... write resumed>) = 18 [pid 7050] write(1, "executing program\n", 18 [pid 7051] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7050] <... write resumed>) = 18 [pid 7051] <... futex resumed>) = 0 [pid 7050] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7051] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7050] <... futex resumed>) = 0 [pid 7050] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7051] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7050] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7051] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7051] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7050] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7051] <... mmap resumed>) = 0x7fb72495a000 [pid 7050] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7050] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7051] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7050] <... mmap resumed>) = 0x7fb72495a000 [pid 7051] <... mprotect resumed>) = 0 [pid 7050] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7051] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7050] <... mprotect resumed>) = 0 [pid 7050] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7051] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7051] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7052 attached [pid 7050] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7050] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7053 attached [pid 7052] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7053] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7052] set_robust_list(0x7fb72497a9a0, 24 [pid 7053] <... rseq resumed>) = 0 [pid 7052] <... set_robust_list resumed>) = 0 [pid 7051] <... clone3 resumed> => {parent_tid=[7052]}, 88) = 7052 [pid 7053] set_robust_list(0x7fb72497a9a0, 24 [pid 7052] rt_sigprocmask(SIG_SETMASK, [], [pid 7051] rt_sigprocmask(SIG_SETMASK, [], [pid 7050] <... clone3 resumed> => {parent_tid=[7053]}, 88) = 7053 [pid 7052] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7051] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7050] rt_sigprocmask(SIG_SETMASK, [], [pid 7051] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7050] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7051] <... futex resumed>) = 0 [pid 7050] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7053] <... set_robust_list resumed>) = 0 [pid 7052] memfd_create("syzkaller", 0 [pid 7051] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7050] <... futex resumed>) = 0 [pid 7053] rt_sigprocmask(SIG_SETMASK, [], [pid 7050] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7053] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7053] memfd_create("syzkaller", 0 [pid 7052] <... memfd_create resumed>) = 3 [pid 7053] <... memfd_create resumed>) = 3 [pid 7053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7052] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7053] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7049] <... write resumed>) = 16777216 [pid 7049] munmap(0x7fb71c400000, 138412032 [pid 7052] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7049] <... munmap resumed>) = 0 [pid 7049] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7049] close(3 [pid 7053] <... write resumed>) = 16777216 [pid 7049] <... close resumed>) = 0 [pid 7053] munmap(0x7fb71c400000, 138412032 [pid 7049] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7048] <... futex resumed>) = 0 [pid 7049] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7048] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7048] <... futex resumed>) = 0 [pid 7049] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7048] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7049] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7049] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7048] <... futex resumed>) = 0 [pid 7049] <... futex resumed>) = 1 [pid 7048] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7049] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7048] <... futex resumed>) = 0 [pid 7048] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7049] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7049] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7053] <... munmap resumed>) = 0 [pid 7048] <... futex resumed>) = 0 [pid 7049] <... futex resumed>) = 1 [pid 7053] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7048] exit_group(0 [pid 7049] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7053] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7049] <... futex resumed>) = ? [pid 7048] <... exit_group resumed>) = ? [pid 7053] close(3 [pid 7049] +++ exited with 0 +++ [pid 7048] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7048, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7054 ./strace-static-x86_64: Process 7054 attached [pid 7054] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7054] setpgid(0, 0) = 0 [pid 7054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7054] write(3, "1000", 4executing program ) = 4 [pid 7054] close(3) = 0 [pid 7054] write(1, "executing program\n", 18) = 18 [pid 7054] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7054] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7054] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7054] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7054] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7054] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7054] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7055]}, 88) = 7055 [pid 7054] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7054] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7054] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7055 attached [pid 7055] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7055] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7055] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7055] memfd_create("syzkaller", 0) = 3 [pid 7055] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7052] <... write resumed>) = 16777216 [pid 7052] munmap(0x7fb71c400000, 138412032) = 0 [pid 7052] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7052] close(3 [pid 7053] <... close resumed>) = 0 [pid 7053] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7053] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7050] <... futex resumed>) = 0 [pid 7050] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7053] <... futex resumed>) = 0 [pid 7050] <... futex resumed>) = 1 [pid 7053] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7050] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7053] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7053] <... futex resumed>) = 0 [pid 7050] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7053] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7050] <... futex resumed>) = 0 [pid 7053] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7050] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7053] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7050] <... futex resumed>) = 0 [pid 7050] exit_group(0) = ? [pid 7053] +++ exited with 0 +++ [pid 7050] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7050, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7056 attached , child_tidptr=0x55556c203690) = 7056 [pid 7056] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7056] setpgid(0, 0) = 0 [pid 7056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 7056] write(3, "1000", 4) = 4 [pid 7056] close(3) = 0 [pid 7056] write(1, "executing program\n", 18) = 18 [pid 7056] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7056] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7056] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7056] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7056] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7056] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7056] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7057 attached [pid 7057] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7055] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7057] set_robust_list(0x7fb72497a9a0, 24 [pid 7056] <... clone3 resumed> => {parent_tid=[7057]}, 88) = 7057 [pid 7057] <... set_robust_list resumed>) = 0 [pid 7056] rt_sigprocmask(SIG_SETMASK, [], [pid 7057] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7056] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7056] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7057] memfd_create("syzkaller", 0 [pid 7056] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7057] <... memfd_create resumed>) = 3 [pid 7057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7052] <... close resumed>) = 0 [pid 7052] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7052] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7051] <... futex resumed>) = 0 [pid 7051] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7052] <... futex resumed>) = 0 [pid 7051] <... futex resumed>) = 1 [pid 7052] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7051] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7052] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7052] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7051] <... futex resumed>) = 0 [pid 7052] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7051] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7052] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7051] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7052] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7051] <... futex resumed>) = 0 [pid 7051] exit_group(0) = ? [pid 7052] +++ exited with 0 +++ [pid 7051] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7051, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7058 ./strace-static-x86_64: Process 7058 attached [pid 7058] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7058] setpgid(0, 0) = 0 [pid 7058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7058] write(3, "1000", 4) = 4 [pid 7058] close(3) = 0 executing program [pid 7058] write(1, "executing program\n", 18) = 18 [pid 7058] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7058] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7058] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7058] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7058] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7058] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7059]}, 88) = 7059 ./strace-static-x86_64: Process 7059 attached [pid 7059] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7058] rt_sigprocmask(SIG_SETMASK, [], [pid 7059] <... rseq resumed>) = 0 [pid 7058] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7058] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7059] set_robust_list(0x7fb72497a9a0, 24 [pid 7058] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7059] <... set_robust_list resumed>) = 0 [pid 7059] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7059] memfd_create("syzkaller", 0) = 3 [pid 7059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7057] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7059] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7055] <... write resumed>) = 16777216 [pid 7055] munmap(0x7fb71c400000, 138412032) = 0 [pid 7055] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7055] close(3 [pid 7057] <... write resumed>) = 16777216 [pid 7057] munmap(0x7fb71c400000, 138412032) = 0 [pid 7057] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7057] close(3 [pid 7059] <... write resumed>) = 16777216 [pid 7059] munmap(0x7fb71c400000, 138412032) = 0 [pid 7059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7059] close(3 [pid 7055] <... close resumed>) = 0 [pid 7057] <... close resumed>) = 0 [pid 7055] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7057] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7055] <... futex resumed>) = 1 [pid 7054] <... futex resumed>) = 0 [pid 7055] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7054] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7057] <... futex resumed>) = 1 [pid 7056] <... futex resumed>) = 0 [pid 7055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7054] <... futex resumed>) = 0 [pid 7057] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7056] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7055] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7054] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7056] <... futex resumed>) = 0 [pid 7055] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7057] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7056] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7055] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7057] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7055] <... futex resumed>) = 1 [pid 7054] <... futex resumed>) = 0 [pid 7057] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7055] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7054] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7057] <... futex resumed>) = 1 [pid 7056] <... futex resumed>) = 0 [pid 7055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7054] <... futex resumed>) = 0 [pid 7057] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7056] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7055] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7054] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7057] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7056] <... futex resumed>) = 0 [pid 7055] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7057] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7056] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7055] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7057] <... futex resumed>) = 0 [pid 7056] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7055] <... futex resumed>) = 1 [pid 7054] <... futex resumed>) = 0 [pid 7057] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7056] exit_group(0 [pid 7055] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7054] exit_group(0 [pid 7057] <... futex resumed>) = ? [pid 7056] <... exit_group resumed>) = ? [pid 7055] <... futex resumed>) = ? [pid 7054] <... exit_group resumed>) = ? [pid 7057] +++ exited with 0 +++ [pid 7056] +++ exited with 0 +++ [pid 7055] +++ exited with 0 +++ [pid 7054] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7054, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7056, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7060 attached ./strace-static-x86_64: Process 7061 attached , child_tidptr=0x55556c203690) = 7061 [pid 7060] set_robust_list(0x55556c2036a0, 24 [pid 7061] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7060] <... set_robust_list resumed>) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7060 [pid 7060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7060] <... prctl resumed>) = 0 [pid 7061] setpgid(0, 0 [pid 7060] setpgid(0, 0 [pid 7061] <... setpgid resumed>) = 0 [pid 7060] <... setpgid resumed>) = 0 [pid 7061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7061] <... openat resumed>) = 3 [pid 7060] <... openat resumed>) = 3 [pid 7061] write(3, "1000", 4) = 4 [pid 7060] write(3, "1000", 4 [pid 7061] close(3 [pid 7060] <... write resumed>) = 4 [pid 7061] <... close resumed>) = 0 [pid 7060] close(3) = 0 [pid 7061] write(1, "executing program\n", 18 [pid 7060] write(1, "executing program\n", 18executing program executing program [pid 7061] <... write resumed>) = 18 [pid 7060] <... write resumed>) = 18 [pid 7061] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7060] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7061] <... futex resumed>) = 0 [pid 7060] <... futex resumed>) = 0 [pid 7061] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7060] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7061] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7060] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7060] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7060] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7060] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7060] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7061] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7061] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7061] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7060] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7061] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7060] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7062 attached ./strace-static-x86_64: Process 7063 attached [pid 7062] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7061] <... clone3 resumed> => {parent_tid=[7062]}, 88) = 7062 [pid 7063] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7062] <... rseq resumed>) = 0 [pid 7061] rt_sigprocmask(SIG_SETMASK, [], [pid 7060] <... clone3 resumed> => {parent_tid=[7063]}, 88) = 7063 [pid 7063] <... rseq resumed>) = 0 [pid 7061] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7063] set_robust_list(0x7fb72497a9a0, 24 [pid 7062] set_robust_list(0x7fb72497a9a0, 24 [pid 7061] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7060] rt_sigprocmask(SIG_SETMASK, [], [pid 7063] <... set_robust_list resumed>) = 0 [pid 7062] <... set_robust_list resumed>) = 0 [pid 7061] <... futex resumed>) = 0 [pid 7060] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7063] rt_sigprocmask(SIG_SETMASK, [], [pid 7062] rt_sigprocmask(SIG_SETMASK, [], [pid 7061] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7060] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7063] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7062] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7060] <... futex resumed>) = 0 [pid 7062] memfd_create("syzkaller", 0 [pid 7060] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7063] memfd_create("syzkaller", 0 [pid 7062] <... memfd_create resumed>) = 3 [pid 7059] <... close resumed>) = 0 [pid 7063] <... memfd_create resumed>) = 3 [pid 7059] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7063] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7059] <... futex resumed>) = 1 [pid 7058] <... futex resumed>) = 0 [pid 7063] <... mmap resumed>) = 0x7fb71c400000 [pid 7059] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7058] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7058] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7062] <... mmap resumed>) = 0x7fb71c400000 [pid 7059] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7059] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7058] <... futex resumed>) = 0 [pid 7059] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7058] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7058] <... futex resumed>) = 0 [pid 7059] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7058] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7059] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7059] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7058] <... futex resumed>) = 0 [pid 7059] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7058] exit_group(0 [pid 7059] <... futex resumed>) = ? [pid 7058] <... exit_group resumed>) = ? [pid 7059] +++ exited with 0 +++ [pid 7058] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7058, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7064 ./strace-static-x86_64: Process 7064 attached [pid 7064] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7064] setpgid(0, 0) = 0 [pid 7064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7064] write(3, "1000", 4) = 4 [pid 7064] close(3) = 0 executing program [pid 7064] write(1, "executing program\n", 18) = 18 [pid 7064] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7064] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7064] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7064] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7064] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7064] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7065 attached [pid 7065] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7064] <... clone3 resumed> => {parent_tid=[7065]}, 88) = 7065 [pid 7065] <... rseq resumed>) = 0 [pid 7064] rt_sigprocmask(SIG_SETMASK, [], [pid 7065] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7064] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7065] rt_sigprocmask(SIG_SETMASK, [], [pid 7063] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7064] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7064] <... futex resumed>) = 0 [pid 7065] memfd_create("syzkaller", 0 [pid 7064] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7065] <... memfd_create resumed>) = 3 [pid 7065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7062] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7065] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7063] <... write resumed>) = 16777216 [pid 7063] munmap(0x7fb71c400000, 138412032 [pid 7062] <... write resumed>) = 16777216 [pid 7063] <... munmap resumed>) = 0 [pid 7063] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7063] close(3 [pid 7062] munmap(0x7fb71c400000, 138412032) = 0 [pid 7062] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7062] close(3 [pid 7063] <... close resumed>) = 0 [pid 7063] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7063] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7060] <... futex resumed>) = 0 [pid 7060] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7063] <... futex resumed>) = 0 [pid 7060] <... futex resumed>) = 1 [pid 7063] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7060] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7063] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7063] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7060] <... futex resumed>) = 0 [pid 7063] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7060] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7063] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7060] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7065] <... write resumed>) = 16777216 [pid 7063] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7060] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7065] munmap(0x7fb71c400000, 138412032 [pid 7063] <... futex resumed>) = 0 [pid 7060] exit_group(0) = ? [pid 7063] +++ exited with 0 +++ [pid 7060] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7060, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7066 attached , child_tidptr=0x55556c203690) = 7066 [pid 7066] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7066] setpgid(0, 0) = 0 [pid 7065] <... munmap resumed>) = 0 [pid 7066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7066] <... openat resumed>) = 3 [pid 7065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7066] write(3, "1000", 4 [pid 7062] <... close resumed>) = 0 [pid 7066] <... write resumed>) = 4 [pid 7065] close(3 [pid 7062] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7066] close(3 [pid 7062] <... futex resumed>) = 1 [pid 7061] <... futex resumed>) = 0 [pid 7062] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7061] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7062] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7061] <... futex resumed>) = 0 [pid 7062] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7061] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7062] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7062] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7066] <... close resumed>) = 0 [pid 7061] <... futex resumed>) = 0 [pid 7062] <... futex resumed>) = 1 [pid 7061] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7062] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7061] <... futex resumed>) = 0 [pid 7062] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7061] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7062] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7061] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7062] <... futex resumed>) = 0 [pid 7061] exit_group(0 [pid 7062] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 7061] <... exit_group resumed>) = ? [pid 7062] +++ exited with 0 +++ [pid 7066] write(1, "executing program\n", 18 [pid 7061] +++ exited with 0 +++ executing program [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7061, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 7066] <... write resumed>) = 18 [pid 7066] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7067 attached [pid 7067] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7066] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7067] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7066] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7067 [pid 7066] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7067] <... prctl resumed>) = 0 [pid 7066] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7067] setpgid(0, 0 [pid 7066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7067] <... setpgid resumed>) = 0 [pid 7066] <... mmap resumed>) = 0x7fb72495a000 [pid 7067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7066] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7067] <... openat resumed>) = 3 [pid 7066] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7067] write(3, "1000", 4) = 4 [pid 7066] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7067] close(3 [pid 7066] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7067] <... close resumed>) = 0 executing program [pid 7067] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 7068 attached [pid 7067] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7066] <... clone3 resumed> => {parent_tid=[7068]}, 88) = 7068 [pid 7068] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7067] <... futex resumed>) = 0 [pid 7066] rt_sigprocmask(SIG_SETMASK, [], [pid 7068] <... rseq resumed>) = 0 [pid 7067] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7066] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7068] set_robust_list(0x7fb72497a9a0, 24 [pid 7067] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7066] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7068] <... set_robust_list resumed>) = 0 [pid 7067] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7066] <... futex resumed>) = 0 [pid 7068] rt_sigprocmask(SIG_SETMASK, [], [pid 7067] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7066] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7068] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7068] memfd_create("syzkaller", 0 [pid 7067] <... mmap resumed>) = 0x7fb72495a000 [pid 7067] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7067] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7068] <... memfd_create resumed>) = 3 [pid 7068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7067] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7068] <... mmap resumed>) = 0x7fb71c400000 [pid 7067] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7069 attached => {parent_tid=[7069]}, 88) = 7069 [pid 7067] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7067] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7067] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7069] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7069] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7069] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7069] memfd_create("syzkaller", 0) = 3 [pid 7069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7065] <... close resumed>) = 0 [pid 7065] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7064] <... futex resumed>) = 0 [pid 7065] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7064] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7065] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7064] <... futex resumed>) = 0 [pid 7065] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7064] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7065] <... futex resumed>) = 0 [pid 7064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7065] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7064] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7064] <... futex resumed>) = 0 [pid 7065] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7064] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7065] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7065] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7064] <... futex resumed>) = 0 [pid 7065] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7064] exit_group(0 [pid 7065] <... futex resumed>) = ? [pid 7064] <... exit_group resumed>) = ? [pid 7065] +++ exited with 0 +++ [pid 7064] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7064, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7070 attached , child_tidptr=0x55556c203690) = 7070 [pid 7070] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7070] setpgid(0, 0) = 0 [pid 7070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7070] write(3, "1000", 4) = 4 [pid 7070] close(3) = 0 [pid 7070] write(1, "executing program\n", 18executing program ) = 18 [pid 7070] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7070] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7070] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7070] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7071 attached => {parent_tid=[7071]}, 88) = 7071 [pid 7070] rt_sigprocmask(SIG_SETMASK, [], [pid 7069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7070] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7070] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7070] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7071] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7071] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7071] memfd_create("syzkaller", 0) = 3 [pid 7071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7068] <... write resumed>) = 16777216 [pid 7069] <... write resumed>) = 16777216 [pid 7069] munmap(0x7fb71c400000, 138412032 [pid 7068] munmap(0x7fb71c400000, 138412032 [pid 7069] <... munmap resumed>) = 0 [pid 7068] <... munmap resumed>) = 0 [pid 7069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7068] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7069] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7068] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7069] close(3 [pid 7068] close(3 [pid 7071] <... write resumed>) = 16777216 [pid 7071] munmap(0x7fb71c400000, 138412032) = 0 [pid 7071] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7068] <... close resumed>) = 0 [pid 7071] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7068] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7071] close(3 [pid 7068] <... futex resumed>) = 1 [pid 7066] <... futex resumed>) = 0 [pid 7068] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7066] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7066] <... futex resumed>) = 0 [pid 7068] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7066] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7068] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7068] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7066] <... futex resumed>) = 0 [pid 7068] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7066] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7066] <... futex resumed>) = 0 [pid 7068] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7066] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7068] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7068] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7066] <... futex resumed>) = 0 [pid 7068] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7066] exit_group(0 [pid 7068] <... futex resumed>) = ? [pid 7066] <... exit_group resumed>) = ? [pid 7068] +++ exited with 0 +++ [pid 7066] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7066, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7072 ./strace-static-x86_64: Process 7072 attached [pid 7072] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7072] setpgid(0, 0) = 0 [pid 7072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7072] write(3, "1000", 4) = 4 [pid 7072] close(3) = 0 [pid 7072] write(1, "executing program\n", 18executing program ) = 18 [pid 7072] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7072] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7072] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7072] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7072] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7072] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7072] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7073 attached => {parent_tid=[7073]}, 88) = 7073 [pid 7073] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7072] rt_sigprocmask(SIG_SETMASK, [], [pid 7069] <... close resumed>) = 0 [pid 7073] <... rseq resumed>) = 0 [pid 7072] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7069] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7073] set_robust_list(0x7fb72497a9a0, 24 [pid 7072] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7069] <... futex resumed>) = 1 [pid 7067] <... futex resumed>) = 0 [pid 7073] <... set_robust_list resumed>) = 0 [pid 7072] <... futex resumed>) = 0 [pid 7069] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7067] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7073] rt_sigprocmask(SIG_SETMASK, [], [pid 7072] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7067] <... futex resumed>) = 0 [pid 7073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7069] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7067] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7073] memfd_create("syzkaller", 0 [pid 7069] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7069] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7067] <... futex resumed>) = 0 [pid 7069] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7067] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7073] <... memfd_create resumed>) = 3 [pid 7069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7067] <... futex resumed>) = 0 [pid 7069] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7067] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7069] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7073] <... mmap resumed>) = 0x7fb71c400000 [pid 7069] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7067] <... futex resumed>) = 0 [pid 7067] exit_group(0 [pid 7069] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 7067] <... exit_group resumed>) = ? [pid 7069] +++ exited with 0 +++ [pid 7067] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7067, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7074 ./strace-static-x86_64: Process 7074 attached [pid 7074] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7074] setpgid(0, 0) = 0 [pid 7074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 7074] write(3, "1000", 4) = 4 [pid 7074] close(3) = 0 [pid 7074] write(1, "executing program\n", 18) = 18 [pid 7074] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7074] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7074] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7074] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7074] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7075]}, 88) = 7075 [pid 7074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7074] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7074] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7075 attached [pid 7075] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7075] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7075] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7075] memfd_create("syzkaller", 0) = 3 [pid 7075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7071] <... close resumed>) = 0 [pid 7071] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7070] <... futex resumed>) = 0 [pid 7070] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7071] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7070] <... futex resumed>) = 0 [pid 7071] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7071] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7070] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7071] <... futex resumed>) = 0 [pid 7070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7071] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7070] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7070] <... futex resumed>) = 0 [pid 7071] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7070] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7071] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7071] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7070] <... futex resumed>) = 0 [pid 7071] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7070] exit_group(0 [pid 7071] <... futex resumed>) = ? [pid 7070] <... exit_group resumed>) = ? [pid 7071] +++ exited with 0 +++ [pid 7070] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7070, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7076 attached , child_tidptr=0x55556c203690) = 7076 [pid 7076] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7076] setpgid(0, 0) = 0 [pid 7076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7076] write(3, "1000", 4) = 4 [pid 7076] close(3) = 0 [pid 7076] write(1, "executing program\n", 18executing program ) = 18 [pid 7076] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7076] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7076] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7076] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7076] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7076] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7077 attached => {parent_tid=[7077]}, 88) = 7077 [pid 7076] rt_sigprocmask(SIG_SETMASK, [], [pid 7075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7076] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7076] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7076] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7077] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7077] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7077] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7077] memfd_create("syzkaller", 0) = 3 [pid 7077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7073] <... write resumed>) = 16777216 [pid 7073] munmap(0x7fb71c400000, 138412032 [pid 7075] <... write resumed>) = 16777216 [pid 7073] <... munmap resumed>) = 0 [pid 7075] munmap(0x7fb71c400000, 138412032 [pid 7073] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7073] close(3 [pid 7075] <... munmap resumed>) = 0 [pid 7075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7075] close(3 [pid 7077] <... write resumed>) = 16777216 [pid 7077] munmap(0x7fb71c400000, 138412032) = 0 [pid 7077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7077] close(3 [pid 7075] <... close resumed>) = 0 [pid 7075] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7075] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7074] <... futex resumed>) = 0 [pid 7074] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7075] <... futex resumed>) = 0 [pid 7074] <... futex resumed>) = 1 [pid 7075] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7074] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7075] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7075] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7074] <... futex resumed>) = 0 [pid 7075] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7074] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7075] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7074] <... futex resumed>) = 0 [pid 7075] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7074] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7075] <... futex resumed>) = 0 [pid 7074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7075] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7074] exit_group(0 [pid 7075] <... futex resumed>) = ? [pid 7074] <... exit_group resumed>) = ? [pid 7075] +++ exited with 0 +++ [pid 7074] +++ exited with 0 +++ [pid 7073] <... close resumed>) = 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7074, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7078 attached [pid 7078] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7078 [pid 7078] <... set_robust_list resumed>) = 0 [pid 7078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7073] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7072] <... futex resumed>) = 0 [pid 7073] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7072] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7072] <... futex resumed>) = 0 [pid 7073] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7072] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7073] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7078] setpgid(0, 0 [pid 7073] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7078] <... setpgid resumed>) = 0 [pid 7073] <... futex resumed>) = 1 [pid 7072] <... futex resumed>) = 0 [pid 7078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7073] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7072] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7072] <... futex resumed>) = 0 [pid 7078] <... openat resumed>) = 3 [pid 7073] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7072] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7078] write(3, "1000", 4 [pid 7073] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7078] <... write resumed>) = 4 [pid 7073] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7078] close(3 [pid 7072] <... futex resumed>) = 0 [pid 7078] <... close resumed>) = 0 [pid 7073] <... futex resumed>) = 1 [pid 7072] exit_group(0 [pid 7073] ???( [pid 7072] <... exit_group resumed>) = ? [pid 7073] <... ??? resumed>) = ? executing program [pid 7078] write(1, "executing program\n", 18) = 18 [pid 7078] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7078] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7078] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7073] +++ exited with 0 +++ [pid 7072] +++ exited with 0 +++ [pid 7078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7072, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 7078] <... mmap resumed>) = 0x7fb72495a000 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7078] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7078] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7078] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5872] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 7079 attached [pid 7079] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7079] set_robust_list(0x7fb72497a9a0, 24 [pid 7078] <... clone3 resumed> => {parent_tid=[7079]}, 88) = 7079 [pid 7079] <... set_robust_list resumed>) = 0 [pid 7078] rt_sigprocmask(SIG_SETMASK, [], [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7079] rt_sigprocmask(SIG_SETMASK, [], [pid 7078] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7078] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7079] memfd_create("syzkaller", 0 [pid 7078] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7080 attached [pid 7079] <... memfd_create resumed>) = 3 [pid 7079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7080] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7080 [pid 7080] <... set_robust_list resumed>) = 0 [pid 7080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7080] setpgid(0, 0) = 0 [pid 7080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7080] write(3, "1000", 4) = 4 [pid 7080] close(3executing program ) = 0 [pid 7080] write(1, "executing program\n", 18) = 18 [pid 7080] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7077] <... close resumed>) = 0 [pid 7080] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7077] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7077] <... futex resumed>) = 1 [pid 7076] <... futex resumed>) = 0 [pid 7080] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7077] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7076] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7076] <... futex resumed>) = 0 [pid 7080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7077] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7080] <... mmap resumed>) = 0x7fb72495a000 [pid 7076] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7080] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7077] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7080] <... mprotect resumed>) = 0 [pid 7077] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7077] <... futex resumed>) = 1 [pid 7076] <... futex resumed>) = 0 [pid 7080] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7077] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7076] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7076] <... futex resumed>) = 0 [pid 7076] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7081 attached [pid 7077] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7081] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7080] <... clone3 resumed> => {parent_tid=[7081]}, 88) = 7081 [pid 7077] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7080] rt_sigprocmask(SIG_SETMASK, [], [pid 7081] <... rseq resumed>) = 0 [pid 7077] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7081] set_robust_list(0x7fb72497a9a0, 24 [pid 7077] <... futex resumed>) = 1 [pid 7076] <... futex resumed>) = 0 [pid 7081] <... set_robust_list resumed>) = 0 [pid 7080] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7077] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7076] exit_group(0 [pid 7081] rt_sigprocmask(SIG_SETMASK, [], [pid 7080] <... futex resumed>) = 0 [pid 7077] <... futex resumed>) = ? [pid 7076] <... exit_group resumed>) = ? [pid 7081] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7080] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7077] +++ exited with 0 +++ [pid 7076] +++ exited with 0 +++ [pid 7081] memfd_create("syzkaller", 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7076, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 7081] <... memfd_create resumed>) = 3 [pid 7081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7082 ./strace-static-x86_64: Process 7082 attached [pid 7082] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7082] setpgid(0, 0) = 0 [pid 7082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7082] write(3, "1000", 4) = 4 [pid 7082] close(3) = 0 [pid 7082] write(1, "executing program\n", 18executing program ) = 18 [pid 7082] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7082] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7082] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7082] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7082] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7083 attached [pid 7083] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7082] <... clone3 resumed> => {parent_tid=[7083]}, 88) = 7083 [pid 7083] <... rseq resumed>) = 0 [pid 7082] rt_sigprocmask(SIG_SETMASK, [], [pid 7083] set_robust_list(0x7fb72497a9a0, 24 [pid 7082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7083] <... set_robust_list resumed>) = 0 [pid 7082] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7083] rt_sigprocmask(SIG_SETMASK, [], [pid 7082] <... futex resumed>) = 0 [pid 7083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7082] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7083] memfd_create("syzkaller", 0) = 3 [pid 7083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7079] <... write resumed>) = 16777216 [pid 7079] munmap(0x7fb71c400000, 138412032) = 0 [pid 7079] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7079] close(3 [pid 7081] <... write resumed>) = 16777216 [pid 7081] munmap(0x7fb71c400000, 138412032) = 0 [pid 7081] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7081] close(3 [pid 7079] <... close resumed>) = 0 [pid 7079] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7079] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7078] <... futex resumed>) = 0 [pid 7078] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7079] <... futex resumed>) = 0 [pid 7078] <... futex resumed>) = 1 [pid 7079] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7078] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7079] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7079] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7078] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7079] <... futex resumed>) = 0 [pid 7079] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7078] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7079] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7078] <... futex resumed>) = 0 [pid 7079] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7078] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7079] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7078] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7079] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7078] exit_group(0 [pid 7079] <... futex resumed>) = ? [pid 7078] <... exit_group resumed>) = ? [pid 7079] +++ exited with 0 +++ [pid 7078] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7078, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7084 attached , child_tidptr=0x55556c203690) = 7084 [pid 7084] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7084] setpgid(0, 0) = 0 [pid 7084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7084] write(3, "1000", 4) = 4 [pid 7084] close(3) = 0 executing program [pid 7084] write(1, "executing program\n", 18) = 18 [pid 7084] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7084] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7084] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7085 attached [pid 7085] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7084] <... clone3 resumed> => {parent_tid=[7085]}, 88) = 7085 [pid 7085] <... rseq resumed>) = 0 [pid 7084] rt_sigprocmask(SIG_SETMASK, [], [pid 7085] set_robust_list(0x7fb72497a9a0, 24 [pid 7084] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7085] <... set_robust_list resumed>) = 0 [pid 7084] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7085] rt_sigprocmask(SIG_SETMASK, [], [pid 7084] <... futex resumed>) = 0 [pid 7084] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7085] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7083] <... write resumed>) = 16777216 [pid 7085] memfd_create("syzkaller", 0 [pid 7083] munmap(0x7fb71c400000, 138412032 [pid 7085] <... memfd_create resumed>) = 3 [pid 7085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7083] <... munmap resumed>) = 0 [pid 7083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7083] close(3 [pid 7081] <... close resumed>) = 0 [pid 7081] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7081] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7080] <... futex resumed>) = 0 [pid 7080] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7081] <... futex resumed>) = 0 [pid 7080] <... futex resumed>) = 1 [pid 7081] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7080] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7081] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7081] <... futex resumed>) = 0 [pid 7080] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7081] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7080] <... futex resumed>) = 0 [pid 7081] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7080] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7081] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7081] <... futex resumed>) = 0 [pid 7080] exit_group(0) = ? [pid 7081] +++ exited with 0 +++ [pid 7080] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7080, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7086 attached , child_tidptr=0x55556c203690) = 7086 [pid 7086] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7086] setpgid(0, 0) = 0 [pid 7086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7086] write(3, "1000", 4) = 4 [pid 7086] close(3) = 0 executing program [pid 7086] write(1, "executing program\n", 18) = 18 [pid 7086] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7086] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7086] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7086] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7086] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 7087 attached [pid 7087] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7087] set_robust_list(0x7fb72497a9a0, 24 [pid 7086] <... clone3 resumed> => {parent_tid=[7087]}, 88) = 7087 [pid 7087] <... set_robust_list resumed>) = 0 [pid 7086] rt_sigprocmask(SIG_SETMASK, [], [pid 7087] rt_sigprocmask(SIG_SETMASK, [], [pid 7086] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7087] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7086] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7087] memfd_create("syzkaller", 0 [pid 7086] <... futex resumed>) = 0 [pid 7086] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7087] <... memfd_create resumed>) = 3 [pid 7087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7083] <... close resumed>) = 0 [pid 7083] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7083] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7082] <... futex resumed>) = 0 [pid 7082] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7083] <... futex resumed>) = 0 [pid 7082] <... futex resumed>) = 1 [pid 7083] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7082] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7083] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7083] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7082] <... futex resumed>) = 0 [pid 7083] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7082] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7083] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7082] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7083] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7082] <... futex resumed>) = 0 [pid 7083] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7082] exit_group(0 [pid 7083] <... futex resumed>) = ? [pid 7082] <... exit_group resumed>) = ? [pid 7083] +++ exited with 0 +++ [pid 7082] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7082, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7085] <... write resumed>) = 16777216 [pid 7085] munmap(0x7fb71c400000, 138412032./strace-static-x86_64: Process 7089 attached [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7089 [pid 7089] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7085] <... munmap resumed>) = 0 [pid 7089] <... prctl resumed>) = 0 [pid 7089] setpgid(0, 0 [pid 7085] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7089] <... setpgid resumed>) = 0 [pid 7085] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7085] close(3 [pid 7089] <... openat resumed>) = 3 [pid 7089] write(3, "1000", 4) = 4 [pid 7089] close(3) = 0 executing program [pid 7089] write(1, "executing program\n", 18) = 18 [pid 7089] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7089] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7089] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7089] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7089] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7089] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7090 attached => {parent_tid=[7090]}, 88) = 7090 [pid 7089] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7089] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7089] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7090] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7090] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7090] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7090] memfd_create("syzkaller", 0) = 3 [pid 7090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7087] <... write resumed>) = 16777216 [pid 7087] munmap(0x7fb71c400000, 138412032 [pid 7085] <... close resumed>) = 0 [pid 7087] <... munmap resumed>) = 0 [pid 7085] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7087] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7085] <... futex resumed>) = 1 [pid 7084] <... futex resumed>) = 0 [pid 7087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7085] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7084] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7084] <... futex resumed>) = 0 [pid 7085] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7084] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7087] close(3 [pid 7085] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7085] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7085] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7084] <... futex resumed>) = 0 [pid 7084] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7085] <... futex resumed>) = 0 [pid 7084] <... futex resumed>) = 1 [pid 7085] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7085] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7085] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7084] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7084] exit_group(0 [pid 7085] <... futex resumed>) = ? [pid 7084] <... exit_group resumed>) = ? [pid 7085] +++ exited with 0 +++ [pid 7084] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7084, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7091 ./strace-static-x86_64: Process 7091 attached [pid 7091] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7091] setpgid(0, 0) = 0 [pid 7091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7091] write(3, "1000", 4) = 4 executing program [pid 7091] close(3) = 0 [pid 7091] write(1, "executing program\n", 18) = 18 [pid 7091] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7091] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7091] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7091] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7091] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7091] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7092]}, 88) = 7092 [pid 7091] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7091] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7091] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7092 attached [pid 7092] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7092] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7092] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7092] memfd_create("syzkaller", 0) = 3 [pid 7092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7087] <... close resumed>) = 0 [pid 7087] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7086] <... futex resumed>) = 0 [pid 7087] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7086] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7087] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7086] <... futex resumed>) = 0 [pid 7086] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7087] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7086] <... futex resumed>) = 0 [pid 7086] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7086] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7087] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7087] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7086] <... futex resumed>) = 0 [pid 7086] exit_group(0) = ? [pid 7087] +++ exited with 0 +++ [pid 7086] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7086, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7093 attached [pid 7090] <... write resumed>) = 16777216 [pid 7090] munmap(0x7fb71c400000, 138412032 [pid 7093] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7093 [pid 7093] <... set_robust_list resumed>) = 0 [pid 7093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7093] setpgid(0, 0 [pid 7090] <... munmap resumed>) = 0 [pid 7090] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7093] <... setpgid resumed>) = 0 [pid 7090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7093] write(3, "1000", 4 [pid 7090] close(3 [pid 7093] <... write resumed>) = 4 [pid 7093] close(3) = 0 [pid 7093] write(1, "executing program\n", 18executing program ) = 18 [pid 7093] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7093] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7093] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7093] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7093] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7093] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7094]}, 88) = 7094 ./strace-static-x86_64: Process 7094 attached [pid 7094] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7093] rt_sigprocmask(SIG_SETMASK, [], [pid 7094] <... rseq resumed>) = 0 [pid 7094] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7093] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7094] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7093] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7094] memfd_create("syzkaller", 0) = 3 [pid 7093] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7090] <... close resumed>) = 0 [pid 7090] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7089] <... futex resumed>) = 0 [pid 7089] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7090] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7089] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7090] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7090] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7089] <... futex resumed>) = 0 [pid 7090] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7089] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7090] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7089] <... futex resumed>) = 0 [pid 7090] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7089] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7090] <... futex resumed>) = 0 [pid 7089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7090] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7089] exit_group(0 [pid 7090] <... futex resumed>) = ? [pid 7089] <... exit_group resumed>) = ? [pid 7090] +++ exited with 0 +++ [pid 7094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7089] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7089, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7095 attached , child_tidptr=0x55556c203690) = 7095 [pid 7095] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7095] setpgid(0, 0) = 0 [pid 7095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7095] write(3, "1000", 4) = 4 [pid 7095] close(3) = 0 executing program [pid 7095] write(1, "executing program\n", 18) = 18 [pid 7095] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7095] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7095] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7095] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7096 attached [pid 7096] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7095] <... clone3 resumed> => {parent_tid=[7096]}, 88) = 7096 [pid 7096] <... rseq resumed>) = 0 [pid 7095] rt_sigprocmask(SIG_SETMASK, [], [pid 7096] set_robust_list(0x7fb72497a9a0, 24 [pid 7095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7096] <... set_robust_list resumed>) = 0 [pid 7095] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7096] rt_sigprocmask(SIG_SETMASK, [], [pid 7095] <... futex resumed>) = 0 [pid 7096] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7095] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7096] memfd_create("syzkaller", 0) = 3 [pid 7096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7092] <... write resumed>) = 16777216 [pid 7092] munmap(0x7fb71c400000, 138412032) = 0 [pid 7092] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7092] close(3 [pid 7096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7094] <... write resumed>) = 16777216 [pid 7094] munmap(0x7fb71c400000, 138412032) = 0 [pid 7092] <... close resumed>) = 0 [pid 7094] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7092] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7094] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7092] <... futex resumed>) = 1 [pid 7091] <... futex resumed>) = 0 [pid 7092] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7091] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7094] close(3 [pid 7092] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7091] <... futex resumed>) = 0 [pid 7092] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7091] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7092] <... futex resumed>) = 0 [pid 7091] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7092] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7091] <... futex resumed>) = 0 [pid 7092] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7091] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7092] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7092] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7091] <... futex resumed>) = 0 [pid 7091] exit_group(0) = ? [pid 7092] <... futex resumed>) = ? [pid 7092] +++ exited with 0 +++ [pid 7091] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7091, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7097 attached , child_tidptr=0x55556c203690) = 7097 [pid 7097] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7097] setpgid(0, 0) = 0 [pid 7097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7097] write(3, "1000", 4) = 4 [pid 7097] close(3) = 0 executing program [pid 7097] write(1, "executing program\n", 18) = 18 [pid 7097] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7097] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7097] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7097] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7097] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7097] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7098 attached [pid 7098] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7097] <... clone3 resumed> => {parent_tid=[7098]}, 88) = 7098 [pid 7098] <... rseq resumed>) = 0 [pid 7097] rt_sigprocmask(SIG_SETMASK, [], [pid 7098] set_robust_list(0x7fb72497a9a0, 24 [pid 7097] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7098] <... set_robust_list resumed>) = 0 [pid 7097] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7098] rt_sigprocmask(SIG_SETMASK, [], [pid 7097] <... futex resumed>) = 0 [pid 7098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7097] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7098] memfd_create("syzkaller", 0) = 3 [pid 7098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7096] <... write resumed>) = 16777216 [pid 7096] munmap(0x7fb71c400000, 138412032) = 0 [pid 7096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7096] close(3 [pid 7094] <... close resumed>) = 0 [pid 7094] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7093] <... futex resumed>) = 0 [pid 7094] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7093] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7093] <... futex resumed>) = 0 [pid 7094] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7093] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7094] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7094] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7093] <... futex resumed>) = 0 [pid 7094] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7093] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7094] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7093] <... futex resumed>) = 0 [pid 7094] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7093] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7094] <... futex resumed>) = 0 [pid 7093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7094] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7093] exit_group(0 [pid 7094] <... futex resumed>) = ? [pid 7093] <... exit_group resumed>) = ? [pid 7094] +++ exited with 0 +++ [pid 7093] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7093, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7099 attached [pid 7099] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7099 [pid 7099] <... set_robust_list resumed>) = 0 [pid 7099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7099] setpgid(0, 0) = 0 [pid 7099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 7099] write(3, "1000", 4) = 4 [pid 7099] close(3) = 0 [pid 7099] write(1, "executing program\n", 18) = 18 [pid 7099] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7099] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7099] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7099] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7099] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7100 attached => {parent_tid=[7100]}, 88) = 7100 [pid 7099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7099] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7099] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7100] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7100] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7100] memfd_create("syzkaller", 0) = 3 [pid 7100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7096] <... close resumed>) = 0 [pid 7096] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7095] <... futex resumed>) = 0 [pid 7096] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7095] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7095] <... futex resumed>) = 0 [pid 7096] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7095] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7096] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7096] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7095] <... futex resumed>) = 0 [pid 7096] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7095] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7095] <... futex resumed>) = 0 [pid 7096] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7095] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7096] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7096] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7095] <... futex resumed>) = 0 [pid 7096] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7095] exit_group(0 [pid 7096] <... futex resumed>) = ? [pid 7095] <... exit_group resumed>) = ? [pid 7096] +++ exited with 0 +++ [pid 7095] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7095, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7101 attached [pid 7100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7101] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7101 [pid 7101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7101] setpgid(0, 0) = 0 [pid 7101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7101] write(3, "1000", 4) = 4 [pid 7101] close(3) = 0 executing program [pid 7101] write(1, "executing program\n", 18) = 18 [pid 7101] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7101] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7101] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7101] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7101] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7101] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7101] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7102 attached => {parent_tid=[7102]}, 88) = 7102 [pid 7101] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7101] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7101] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7102] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7102] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7102] memfd_create("syzkaller", 0) = 3 [pid 7102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7098] <... write resumed>) = 16777216 [pid 7098] munmap(0x7fb71c400000, 138412032) = 0 [pid 7098] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7098] close(3 [pid 7102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7098] <... close resumed>) = 0 [pid 7098] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7097] <... futex resumed>) = 0 [pid 7098] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 7097] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7098] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7097] <... futex resumed>) = 0 [pid 7098] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7097] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7100] <... write resumed>) = 16777216 [pid 7098] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7097] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7097] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7098] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7098] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7097] <... futex resumed>) = 0 [pid 7098] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7097] exit_group(0) = ? [pid 7098] <... futex resumed>) = ? [pid 7098] +++ exited with 0 +++ [pid 7097] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7097, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7100] munmap(0x7fb71c400000, 138412032 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7103 attached , child_tidptr=0x55556c203690) = 7103 [pid 7103] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7103] setpgid(0, 0) = 0 [pid 7103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 7103] write(3, "1000", 4) = 4 [pid 7103] close(3) = 0 [pid 7103] write(1, "executing program\n", 18) = 18 [pid 7103] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7103] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7103] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7103] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7103] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7103] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7104 attached => {parent_tid=[7104]}, 88) = 7104 [pid 7104] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7103] rt_sigprocmask(SIG_SETMASK, [], [pid 7104] <... rseq resumed>) = 0 [pid 7103] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7104] set_robust_list(0x7fb72497a9a0, 24 [pid 7103] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7104] <... set_robust_list resumed>) = 0 [pid 7103] <... futex resumed>) = 0 [pid 7104] rt_sigprocmask(SIG_SETMASK, [], [pid 7103] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7104] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7104] memfd_create("syzkaller", 0) = 3 [pid 7104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7100] <... munmap resumed>) = 0 [pid 7100] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7100] close(3 [pid 7104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7102] <... write resumed>) = 16777216 [pid 7102] munmap(0x7fb71c400000, 138412032) = 0 [pid 7102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7102] close(3 [pid 7100] <... close resumed>) = 0 [pid 7100] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7099] <... futex resumed>) = 0 [pid 7100] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7099] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7100] <... futex resumed>) = 0 [pid 7099] <... futex resumed>) = 1 [pid 7099] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7100] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7100] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7099] <... futex resumed>) = 0 [pid 7100] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7099] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7100] <... futex resumed>) = 0 [pid 7099] <... futex resumed>) = 1 [pid 7100] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7099] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7100] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7100] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7100] <... futex resumed>) = 0 [pid 7100] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7099] exit_group(0 [pid 7100] <... futex resumed>) = ? [pid 7099] <... exit_group resumed>) = ? [pid 7100] +++ exited with 0 +++ [pid 7099] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7099, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7104] <... write resumed>) = 16777216 [pid 7104] munmap(0x7fb71c400000, 138412032 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7105 ./strace-static-x86_64: Process 7105 attached [pid 7105] set_robust_list(0x55556c2036a0, 24 [pid 7104] <... munmap resumed>) = 0 [pid 7105] <... set_robust_list resumed>) = 0 [pid 7105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7105] setpgid(0, 0) = 0 [pid 7104] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7104] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7105] <... openat resumed>) = 3 [pid 7105] write(3, "1000", 4 [pid 7104] close(3 [pid 7105] <... write resumed>) = 4 [pid 7105] close(3) = 0 executing program [pid 7105] write(1, "executing program\n", 18) = 18 [pid 7105] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7105] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7105] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7105] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7105] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7105] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7106 attached [pid 7106] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7105] <... clone3 resumed> => {parent_tid=[7106]}, 88) = 7106 [pid 7106] <... rseq resumed>) = 0 [pid 7105] rt_sigprocmask(SIG_SETMASK, [], [pid 7106] set_robust_list(0x7fb72497a9a0, 24 [pid 7105] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7106] <... set_robust_list resumed>) = 0 [pid 7105] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7106] rt_sigprocmask(SIG_SETMASK, [], [pid 7105] <... futex resumed>) = 0 [pid 7106] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7105] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7106] memfd_create("syzkaller", 0) = 3 [pid 7106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7102] <... close resumed>) = 0 [pid 7102] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7101] <... futex resumed>) = 0 [pid 7102] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7101] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7101] <... futex resumed>) = 0 [pid 7102] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7101] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7102] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7102] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7101] <... futex resumed>) = 0 [pid 7102] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7101] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7102] <... futex resumed>) = 0 [pid 7101] <... futex resumed>) = 1 [pid 7102] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7101] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7102] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7102] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7102] <... futex resumed>) = 0 [pid 7102] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7101] exit_group(0 [pid 7102] <... futex resumed>) = ? [pid 7101] <... exit_group resumed>) = ? [pid 7102] +++ exited with 0 +++ [pid 7101] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7101, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7107 attached , child_tidptr=0x55556c203690) = 7107 [pid 7107] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7107] setpgid(0, 0) = 0 [pid 7107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 7107] write(3, "1000", 4) = 4 [pid 7107] close(3) = 0 [pid 7107] write(1, "executing program\n", 18) = 18 [pid 7107] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7107] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7107] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7107] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7107] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7107] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7108]}, 88) = 7108 [pid 7107] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7107] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 7108 attached ) = 0 [pid 7107] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7108] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7108] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7108] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7108] memfd_create("syzkaller", 0) = 3 [pid 7108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7104] <... close resumed>) = 0 [pid 7108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7104] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7103] <... futex resumed>) = 0 [pid 7104] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7103] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7104] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7103] <... futex resumed>) = 0 [pid 7104] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7103] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7104] <... futex resumed>) = 0 [pid 7103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7104] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 7103] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7104] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7103] <... futex resumed>) = 0 [pid 7104] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7103] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7104] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7103] exit_group(0) = ? [pid 7104] <... futex resumed>) = ? [pid 7104] +++ exited with 0 +++ [pid 7103] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7103, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7111 attached , child_tidptr=0x55556c203690) = 7111 [pid 7111] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7111] setpgid(0, 0) = 0 [pid 7111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7111] write(3, "1000", 4) = 4 [pid 7111] close(3executing program ) = 0 [pid 7111] write(1, "executing program\n", 18) = 18 [pid 7111] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7111] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7111] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7111] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7111] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7111] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7114 attached [pid 7114] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7111] <... clone3 resumed> => {parent_tid=[7114]}, 88) = 7114 [pid 7114] <... rseq resumed>) = 0 [pid 7111] rt_sigprocmask(SIG_SETMASK, [], [pid 7114] set_robust_list(0x7fb72497a9a0, 24 [pid 7111] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7114] <... set_robust_list resumed>) = 0 [pid 7111] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7114] rt_sigprocmask(SIG_SETMASK, [], [pid 7111] <... futex resumed>) = 0 [pid 7114] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7111] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7114] memfd_create("syzkaller", 0) = 3 [pid 7114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7106] <... write resumed>) = 16777216 [pid 7106] munmap(0x7fb71c400000, 138412032) = 0 [pid 7106] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7106] close(3 [pid 7114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7108] <... write resumed>) = 16777216 [pid 7108] munmap(0x7fb71c400000, 138412032) = 0 [pid 7108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7108] close(3 [pid 7106] <... close resumed>) = 0 [pid 7106] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7105] <... futex resumed>) = 0 [pid 7105] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7105] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7106] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7106] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7105] <... futex resumed>) = 0 [pid 7105] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7106] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7105] <... futex resumed>) = 0 [pid 7106] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7105] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7106] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7106] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7105] exit_group(0 [pid 7106] <... futex resumed>) = ? [pid 7105] <... exit_group resumed>) = ? [pid 7106] +++ exited with 0 +++ [pid 7105] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7105, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7115 attached [pid 7115] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7115] setpgid(0, 0) = 0 [pid 7115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7115] write(3, "1000", 4executing program ) = 4 [pid 7115] close(3) = 0 [pid 7115] write(1, "executing program\n", 18) = 18 [pid 7115] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7115] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7115] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7115] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7115] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7115] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7115 ./strace-static-x86_64: Process 7116 attached [pid 7115] <... clone3 resumed> => {parent_tid=[7116]}, 88) = 7116 [pid 7115] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7115] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7115] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7116] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7116] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7116] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7116] memfd_create("syzkaller", 0) = 3 [pid 7116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7108] <... close resumed>) = 0 [pid 7108] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7107] <... futex resumed>) = 0 [pid 7107] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7107] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7108] <... futex resumed>) = 1 [pid 7108] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7108] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7107] <... futex resumed>) = 0 [pid 7107] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7107] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7108] <... futex resumed>) = 1 [pid 7108] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7108] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7107] <... futex resumed>) = 0 [pid 7107] exit_group(0) = ? [pid 7108] <... futex resumed>) = ? [pid 7108] +++ exited with 0 +++ [pid 7107] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7107, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7117 ./strace-static-x86_64: Process 7117 attached [pid 7117] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7117] setpgid(0, 0) = 0 [pid 7117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7117] write(3, "1000", 4) = 4 [pid 7117] close(3) = 0 executing program [pid 7117] write(1, "executing program\n", 18) = 18 [pid 7117] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7117] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7117] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7117] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7117] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7117] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7118]}, 88) = 7118 [pid 7117] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7117] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7117] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7118 attached [pid 7118] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7118] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7118] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7118] memfd_create("syzkaller", 0) = 3 [pid 7118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7114] <... write resumed>) = 16777216 [pid 7114] munmap(0x7fb71c400000, 138412032) = 0 [pid 7114] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7114] close(3 [pid 7118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7114] <... close resumed>) = 0 [pid 7114] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7111] <... futex resumed>) = 0 [pid 7111] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7111] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7114] <... futex resumed>) = 1 [pid 7114] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7114] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7111] <... futex resumed>) = 0 [pid 7111] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7111] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7114] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7114] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7111] <... futex resumed>) = 0 [pid 7114] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7111] exit_group(0 [pid 7114] <... futex resumed>) = ? [pid 7111] <... exit_group resumed>) = ? [pid 7114] +++ exited with 0 +++ [pid 7111] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7111, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7119 ./strace-static-x86_64: Process 7119 attached executing program [pid 7119] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7119] setpgid(0, 0) = 0 [pid 7119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7119] write(3, "1000", 4) = 4 [pid 7119] close(3) = 0 [pid 7119] write(1, "executing program\n", 18) = 18 [pid 7119] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7119] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7119] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7119] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7119] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7119] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7120 attached => {parent_tid=[7120]}, 88) = 7120 [pid 7120] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7119] rt_sigprocmask(SIG_SETMASK, [], [pid 7120] <... rseq resumed>) = 0 [pid 7119] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7120] set_robust_list(0x7fb72497a9a0, 24 [pid 7119] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7120] <... set_robust_list resumed>) = 0 [pid 7119] <... futex resumed>) = 0 [pid 7120] rt_sigprocmask(SIG_SETMASK, [], [pid 7119] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7120] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7120] memfd_create("syzkaller", 0) = 3 [pid 7120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7116] <... write resumed>) = 16777216 [pid 7116] munmap(0x7fb71c400000, 138412032) = 0 [pid 7116] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7116] close(3 [pid 7118] <... write resumed>) = 16777216 [pid 7118] munmap(0x7fb71c400000, 138412032) = 0 [pid 7118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7118] close(3 [pid 7120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7118] <... close resumed>) = 0 [pid 7118] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7117] <... futex resumed>) = 0 [pid 7118] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7117] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7118] <... futex resumed>) = 0 [pid 7117] <... futex resumed>) = 1 [pid 7118] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7118] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7118] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7117] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7117] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7118] <... futex resumed>) = 0 [pid 7117] <... futex resumed>) = 1 [pid 7118] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7117] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7118] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7118] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7117] <... futex resumed>) = 0 [pid 7117] exit_group(0) = ? [pid 7118] <... futex resumed>) = ? [pid 7116] <... close resumed>) = 0 [pid 7118] +++ exited with 0 +++ [pid 7117] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7117, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 7116] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7115] <... futex resumed>) = 0 [pid 7116] <... futex resumed>) = 1 [pid 7115] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7116] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7115] <... futex resumed>) = 0 [pid 7116] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7115] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7116] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7115] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7116] <... futex resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7115] <... futex resumed>) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7115] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7116] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0./strace-static-x86_64: Process 7121 attached ) = -1 ENOENT (No such file or directory) [pid 7116] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7115] <... futex resumed>) = 0 [pid 7116] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7121] set_robust_list(0x55556c2036a0, 24 [pid 7115] exit_group(0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7121 [pid 7121] <... set_robust_list resumed>) = 0 [pid 7116] <... futex resumed>) = ? [pid 7115] <... exit_group resumed>) = ? [pid 7121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7116] +++ exited with 0 +++ [pid 7115] +++ exited with 0 +++ [pid 7121] <... prctl resumed>) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7115, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7122 attached [pid 7122] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7122] setpgid(0, 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7122 [pid 7122] <... setpgid resumed>) = 0 [pid 7122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7121] setpgid(0, 0 [pid 7122] write(3, "1000", 4 [pid 7121] <... setpgid resumed>) = 0 [pid 7122] <... write resumed>) = 4 [pid 7121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7122] close(3) = 0 executing program [pid 7122] write(1, "executing program\n", 18) = 18 [pid 7121] <... openat resumed>) = 3 [pid 7122] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7122] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7121] write(3, "1000", 4 [pid 7122] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7121] <... write resumed>) = 4 [pid 7122] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7121] close(3 [pid 7122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7121] <... close resumed>) = 0 [pid 7122] <... mmap resumed>) = 0x7fb72495a000 [pid 7121] write(1, "executing program\n", 18executing program ) = 18 [pid 7122] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7121] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7122] <... mprotect resumed>) = 0 [pid 7121] <... futex resumed>) = 0 [pid 7121] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7122] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7121] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7121] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7122] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7122] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7121] <... mmap resumed>) = 0x7fb72495a000 ./strace-static-x86_64: Process 7123 attached [pid 7121] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7123] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7122] <... clone3 resumed> => {parent_tid=[7123]}, 88) = 7123 [pid 7123] <... rseq resumed>) = 0 [pid 7122] rt_sigprocmask(SIG_SETMASK, [], [pid 7121] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7123] set_robust_list(0x7fb72497a9a0, 24 [pid 7122] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7123] <... set_robust_list resumed>) = 0 [pid 7122] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7121] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7123] rt_sigprocmask(SIG_SETMASK, [], [pid 7122] <... futex resumed>) = 0 [pid 7121] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7124 attached [pid 7123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7122] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7123] memfd_create("syzkaller", 0 [pid 7121] <... clone3 resumed> => {parent_tid=[7124]}, 88) = 7124 [pid 7121] rt_sigprocmask(SIG_SETMASK, [], [pid 7123] <... memfd_create resumed>) = 3 [pid 7121] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7121] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7121] <... futex resumed>) = 0 [pid 7123] <... mmap resumed>) = 0x7fb71c400000 [pid 7121] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7124] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7124] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7124] memfd_create("syzkaller", 0) = 3 [pid 7124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7120] <... write resumed>) = 16777216 [pid 7120] munmap(0x7fb71c400000, 138412032) = 0 [pid 7120] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7120] close(3 [pid 7123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7120] <... close resumed>) = 0 [pid 7120] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7120] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7119] <... futex resumed>) = 0 [pid 7119] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7120] <... futex resumed>) = 0 [pid 7119] <... futex resumed>) = 1 [pid 7120] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7119] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7120] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7120] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7119] <... futex resumed>) = 0 [pid 7120] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7119] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7120] <... futex resumed>) = 0 [pid 7119] <... futex resumed>) = 1 [pid 7120] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7119] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7120] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7120] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7119] <... futex resumed>) = 0 [pid 7120] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7119] exit_group(0) = ? [pid 7120] <... futex resumed>) = ? [pid 7120] +++ exited with 0 +++ [pid 7119] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7119, si_uid=0, si_status=0, si_utime=0, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7126 attached , child_tidptr=0x55556c203690) = 7126 [pid 7126] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7126] setpgid(0, 0) = 0 [pid 7126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7126] write(3, "1000", 4executing program ) = 4 [pid 7126] close(3) = 0 [pid 7126] write(1, "executing program\n", 18) = 18 [pid 7126] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7126] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7126] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7126] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7127 attached => {parent_tid=[7127]}, 88) = 7127 [pid 7127] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7126] rt_sigprocmask(SIG_SETMASK, [], [pid 7127] <... rseq resumed>) = 0 [pid 7127] set_robust_list(0x7fb72497a9a0, 24 [pid 7126] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7127] <... set_robust_list resumed>) = 0 [pid 7126] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7127] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7126] <... futex resumed>) = 0 [pid 7127] memfd_create("syzkaller", 0 [pid 7126] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7123] <... write resumed>) = 16777216 [pid 7123] munmap(0x7fb71c400000, 138412032 [pid 7127] <... memfd_create resumed>) = 3 [pid 7127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7124] <... write resumed>) = 16777216 [pid 7124] munmap(0x7fb71c400000, 138412032 [pid 7123] <... munmap resumed>) = 0 [pid 7123] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7124] <... munmap resumed>) = 0 [pid 7123] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7124] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7123] close(3 [pid 7124] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7124] close(3 [pid 7127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7123] <... close resumed>) = 0 [pid 7123] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7122] <... futex resumed>) = 0 [pid 7123] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7122] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7123] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7122] <... futex resumed>) = 0 [pid 7123] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7123] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7122] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7122] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7123] <... futex resumed>) = 0 [pid 7122] <... futex resumed>) = 1 [pid 7123] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7122] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7123] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7123] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7122] <... futex resumed>) = 0 [pid 7123] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7122] exit_group(0 [pid 7123] <... futex resumed>) = ? [pid 7122] <... exit_group resumed>) = ? [pid 7123] +++ exited with 0 +++ [pid 7122] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7122, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7128 attached , child_tidptr=0x55556c203690) = 7128 [pid 7124] <... close resumed>) = 0 [pid 7128] set_robust_list(0x55556c2036a0, 24 [pid 7124] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7128] <... set_robust_list resumed>) = 0 [pid 7124] <... futex resumed>) = 1 [pid 7121] <... futex resumed>) = 0 [pid 7128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7124] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7128] <... prctl resumed>) = 0 [pid 7124] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7121] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7128] setpgid(0, 0 [pid 7124] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7121] <... futex resumed>) = 0 [pid 7128] <... setpgid resumed>) = 0 [pid 7124] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7121] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7124] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7124] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7121] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7128] <... openat resumed>) = 3 [pid 7124] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7121] <... futex resumed>) = 0 [pid 7124] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7121] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7124] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7124] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7121] <... futex resumed>) = 0 [pid 7124] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7121] exit_group(0 [pid 7128] write(3, "1000", 4 [pid 7124] <... futex resumed>) = ? [pid 7121] <... exit_group resumed>) = ? [pid 7124] +++ exited with 0 +++ [pid 7121] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7121, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 7128] <... write resumed>) = 4 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7128] close(3executing program ) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7128] write(1, "executing program\n", 18) = 18 [pid 7128] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7128] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7128] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7128] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7129 attached [pid 7129] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7129 [pid 7129] setpgid(0, 0) = 0 [pid 7129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7129] write(3, "1000", 4 [pid 7128] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7129] <... write resumed>) = 4 [pid 7128] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7129] close(3 [pid 7128] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7130 attached [pid 7129] <... close resumed>) = 0 executing program [pid 7129] write(1, "executing program\n", 18) = 18 [pid 7129] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7128] <... clone3 resumed> => {parent_tid=[7130]}, 88) = 7130 [pid 7128] rt_sigprocmask(SIG_SETMASK, [], [pid 7129] <... futex resumed>) = 0 [pid 7128] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7128] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7129] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7128] <... futex resumed>) = 0 [pid 7129] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7128] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7129] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7129] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7129] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7129] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7130] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7130] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7129] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7130] rt_sigprocmask(SIG_SETMASK, [], [pid 7129] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7130] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7129] <... clone3 resumed> => {parent_tid=[7131]}, 88) = 7131 ./strace-static-x86_64: Process 7131 attached [pid 7130] memfd_create("syzkaller", 0 [pid 7131] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7130] <... memfd_create resumed>) = 3 [pid 7129] rt_sigprocmask(SIG_SETMASK, [], [pid 7131] set_robust_list(0x7fb72497a9a0, 24 [pid 7130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7129] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7131] <... set_robust_list resumed>) = 0 [pid 7130] <... mmap resumed>) = 0x7fb71c400000 [pid 7129] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7131] rt_sigprocmask(SIG_SETMASK, [], [pid 7129] <... futex resumed>) = 0 [pid 7129] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7131] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7131] memfd_create("syzkaller", 0) = 3 [pid 7131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7127] <... write resumed>) = 16777216 [pid 7127] munmap(0x7fb71c400000, 138412032) = 0 [pid 7127] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7127] close(3 [pid 7130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7127] <... close resumed>) = 0 [pid 7127] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7127] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7126] <... futex resumed>) = 0 [pid 7126] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7127] <... futex resumed>) = 0 [pid 7126] <... futex resumed>) = 1 [pid 7127] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7126] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7127] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7127] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7126] <... futex resumed>) = 0 [pid 7127] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7126] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7126] <... futex resumed>) = 0 [pid 7127] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7126] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7127] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7127] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7126] <... futex resumed>) = 0 [pid 7127] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7126] exit_group(0 [pid 7127] <... futex resumed>) = ? [pid 7126] <... exit_group resumed>) = ? [pid 7127] +++ exited with 0 +++ [pid 7126] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7126, si_uid=0, si_status=0, si_utime=0, si_stime=39 /* 0.39 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7132 attached , child_tidptr=0x55556c203690) = 7132 [pid 7132] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7132] setpgid(0, 0) = 0 [pid 7132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7132] write(3, "1000", 4) = 4 [pid 7132] close(3) = 0 [pid 7132] write(1, "executing program\n", 18) = 18 [pid 7132] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 executing program [pid 7132] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7132] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7133 attached => {parent_tid=[7133]}, 88) = 7133 [pid 7133] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7132] rt_sigprocmask(SIG_SETMASK, [], [pid 7133] <... rseq resumed>) = 0 [pid 7132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7133] set_robust_list(0x7fb72497a9a0, 24 [pid 7132] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7133] <... set_robust_list resumed>) = 0 [pid 7132] <... futex resumed>) = 0 [pid 7133] rt_sigprocmask(SIG_SETMASK, [], [pid 7132] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7133] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7133] memfd_create("syzkaller", 0) = 3 [pid 7133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7130] <... write resumed>) = 16777216 [pid 7130] munmap(0x7fb71c400000, 138412032) = 0 [pid 7131] <... write resumed>) = 16777216 [pid 7130] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7131] munmap(0x7fb71c400000, 138412032 [pid 7130] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7130] close(3 [pid 7133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7131] <... munmap resumed>) = 0 [pid 7131] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7131] close(3) = 0 [pid 7131] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7129] <... futex resumed>) = 0 [pid 7131] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7130] <... close resumed>) = 0 [pid 7129] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7131] <... futex resumed>) = 0 [pid 7130] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7129] <... futex resumed>) = 1 [pid 7131] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7130] <... futex resumed>) = 1 [pid 7129] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7128] <... futex resumed>) = 0 [pid 7131] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7130] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7131] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7128] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7131] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7130] <... futex resumed>) = 0 [pid 7129] <... futex resumed>) = 0 [pid 7128] <... futex resumed>) = 1 [pid 7130] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7129] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7128] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7131] <... futex resumed>) = 0 [pid 7130] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7129] <... futex resumed>) = 1 [pid 7131] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7130] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7129] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7131] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7130] <... futex resumed>) = 1 [pid 7128] <... futex resumed>) = 0 [pid 7131] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7130] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7128] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7131] <... futex resumed>) = 1 [pid 7130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7129] <... futex resumed>) = 0 [pid 7128] <... futex resumed>) = 0 [pid 7131] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7130] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7129] exit_group(0 [pid 7128] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7131] <... futex resumed>) = ? [pid 7130] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7129] <... exit_group resumed>) = ? [pid 7131] +++ exited with 0 +++ [pid 7130] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7130] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7128] <... futex resumed>) = 0 [pid 7128] exit_group(0 [pid 7130] <... futex resumed>) = ? [pid 7128] <... exit_group resumed>) = ? [pid 7130] +++ exited with 0 +++ [pid 7128] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7128, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7129] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7129, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7133] <... write resumed>) = 16777216 [pid 5872] <... restart_syscall resumed>) = 0 [pid 7133] munmap(0x7fb71c400000, 138412032./strace-static-x86_64: Process 7134 attached [pid 7134] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7133] <... munmap resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7134 [pid 7133] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7134] <... prctl resumed>) = 0 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7133] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7133] close(3./strace-static-x86_64: Process 7135 attached [pid 7134] setpgid(0, 0 [pid 7135] set_robust_list(0x55556c2036a0, 24 [pid 7134] <... setpgid resumed>) = 0 [pid 7134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7135] <... set_robust_list resumed>) = 0 [pid 7134] <... openat resumed>) = 3 [pid 7135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7135 [pid 7134] write(3, "1000", 4 [pid 7135] <... prctl resumed>) = 0 [pid 7135] setpgid(0, 0 [pid 7134] <... write resumed>) = 4 [pid 7135] <... setpgid resumed>) = 0 [pid 7135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7134] close(3) = 0 executing program [pid 7134] write(1, "executing program\n", 18 [pid 7135] <... openat resumed>) = 3 [pid 7134] <... write resumed>) = 18 [pid 7134] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7135] write(3, "1000", 4 [pid 7134] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7135] <... write resumed>) = 4 [pid 7134] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7135] close(3) = 0 [pid 7134] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7135] write(1, "executing program\n", 18executing program [pid 7134] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7135] <... write resumed>) = 18 [pid 7135] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7134] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7135] <... futex resumed>) = 0 [pid 7134] <... mmap resumed>) = 0x7fb72495a000 [pid 7135] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7135] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7134] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7135] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7134] <... mprotect resumed>) = 0 [pid 7135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7135] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7134] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7135] <... mprotect resumed>) = 0 [pid 7134] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7134] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7136 attached [pid 7135] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7134] <... clone3 resumed> => {parent_tid=[7136]}, 88) = 7136 [pid 7135] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7134] rt_sigprocmask(SIG_SETMASK, [], [pid 7135] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7134] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7134] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 7137 attached [pid 7136] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7134] <... futex resumed>) = 0 [pid 7137] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7136] set_robust_list(0x7fb72497a9a0, 24 [pid 7135] <... clone3 resumed> => {parent_tid=[7137]}, 88) = 7137 [pid 7134] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7135] rt_sigprocmask(SIG_SETMASK, [], [pid 7137] set_robust_list(0x7fb72497a9a0, 24 [pid 7136] <... set_robust_list resumed>) = 0 [pid 7135] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7137] <... set_robust_list resumed>) = 0 [pid 7136] rt_sigprocmask(SIG_SETMASK, [], [pid 7135] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7137] rt_sigprocmask(SIG_SETMASK, [], [pid 7136] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7135] <... futex resumed>) = 0 [pid 7137] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7135] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7136] memfd_create("syzkaller", 0 [pid 7137] memfd_create("syzkaller", 0) = 3 [pid 7136] <... memfd_create resumed>) = 3 [pid 7137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7137] <... mmap resumed>) = 0x7fb71c400000 [pid 7136] <... mmap resumed>) = 0x7fb71c400000 [pid 7133] <... close resumed>) = 0 [pid 7133] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7132] <... futex resumed>) = 0 [pid 7133] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7132] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7133] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7132] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7133] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7132] <... futex resumed>) = 0 [pid 7133] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7132] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7133] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7133] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7132] <... futex resumed>) = 0 [pid 7133] <... futex resumed>) = 0 [pid 7132] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7133] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7132] exit_group(0 [pid 7133] <... futex resumed>) = ? [pid 7132] <... exit_group resumed>) = ? [pid 7133] +++ exited with 0 +++ [pid 7132] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7132, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7138 attached , child_tidptr=0x55556c203690) = 7138 [pid 7138] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7138] <... prctl resumed>) = 0 [pid 7138] setpgid(0, 0) = 0 [pid 7138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7138] write(3, "1000", 4) = 4 [pid 7138] close(3) = 0 executing program [pid 7138] write(1, "executing program\n", 18) = 18 [pid 7138] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7138] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7138] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7138] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7138] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7138] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7139 attached [pid 7139] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7138] <... clone3 resumed> => {parent_tid=[7139]}, 88) = 7139 [pid 7139] <... rseq resumed>) = 0 [pid 7138] rt_sigprocmask(SIG_SETMASK, [], [pid 7139] set_robust_list(0x7fb72497a9a0, 24 [pid 7138] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7139] <... set_robust_list resumed>) = 0 [pid 7138] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7139] rt_sigprocmask(SIG_SETMASK, [], [pid 7138] <... futex resumed>) = 0 [pid 7139] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7138] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7139] memfd_create("syzkaller", 0 [pid 7136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7139] <... memfd_create resumed>) = 3 [pid 7139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7136] <... write resumed>) = 16777216 [pid 7137] <... write resumed>) = 16777216 [pid 7136] munmap(0x7fb71c400000, 138412032 [pid 7137] munmap(0x7fb71c400000, 138412032 [pid 7136] <... munmap resumed>) = 0 [pid 7137] <... munmap resumed>) = 0 [pid 7136] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7137] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7136] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7137] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7136] close(3 [pid 7137] close(3 [pid 7139] <... write resumed>) = 16777216 [pid 7139] munmap(0x7fb71c400000, 138412032) = 0 [pid 7139] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7139] close(3 [pid 7137] <... close resumed>) = 0 [pid 7136] <... close resumed>) = 0 [pid 7137] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7136] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7137] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7136] <... futex resumed>) = 1 [pid 7135] <... futex resumed>) = 0 [pid 7134] <... futex resumed>) = 0 [pid 7136] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7135] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7134] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7137] <... futex resumed>) = 0 [pid 7136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7135] <... futex resumed>) = 1 [pid 7134] <... futex resumed>) = 0 [pid 7137] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7135] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7134] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7137] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7136] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7137] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7136] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7135] <... futex resumed>) = 0 [pid 7137] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7136] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7135] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7136] <... futex resumed>) = 1 [pid 7135] <... futex resumed>) = 0 [pid 7134] <... futex resumed>) = 0 [pid 7137] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7135] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7134] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7137] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7134] <... futex resumed>) = 0 [pid 7137] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7134] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7137] <... futex resumed>) = 1 [pid 7135] <... futex resumed>) = 0 [pid 7137] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7135] exit_group(0 [pid 7137] <... futex resumed>) = ? [pid 7135] <... exit_group resumed>) = ? [pid 7137] +++ exited with 0 +++ [pid 7135] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7135, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7136] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7136] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7134] <... futex resumed>) = 0 [pid 7136] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7134] exit_group(0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 7136] <... futex resumed>) = ? [pid 7134] <... exit_group resumed>) = ? [pid 7136] +++ exited with 0 +++ [pid 7134] +++ exited with 0 +++ [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7134, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7140 attached [pid 7140] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7140 [pid 7140] <... set_robust_list resumed>) = 0 [pid 7140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7140] setpgid(0, 0) = 0 [pid 7140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7140] write(3, "1000", 4executing program ) = 4 [pid 7140] close(3) = 0 [pid 7140] write(1, "executing program\n", 18) = 18 [pid 7140] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7140] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7140] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7140] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7140] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7141 attached [pid 7140] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7141 [pid 7140] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7142 attached [pid 7142] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7142] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7142] rt_sigprocmask(SIG_SETMASK, [], [pid 7140] <... clone3 resumed> => {parent_tid=[7142]}, 88) = 7142 [pid 7142] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7142] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7140] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7140] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7142] <... futex resumed>) = 0 [pid 7141] set_robust_list(0x55556c2036a0, 24 [pid 7140] <... futex resumed>) = 1 [pid 7142] memfd_create("syzkaller", 0 [pid 7141] <... set_robust_list resumed>) = 0 [pid 7140] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7142] <... memfd_create resumed>) = 3 [pid 7141] setpgid(0, 0 [pid 7142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7141] <... setpgid resumed>) = 0 [pid 7142] <... mmap resumed>) = 0x7fb71c400000 [pid 7141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7141] write(3, "1000", 4) = 4 [pid 7141] close(3executing program ) = 0 [pid 7141] write(1, "executing program\n", 18) = 18 [pid 7141] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7141] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7139] <... close resumed>) = 0 [pid 7141] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7139] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7139] <... futex resumed>) = 1 [pid 7138] <... futex resumed>) = 0 [pid 7141] <... mmap resumed>) = 0x7fb72495a000 [pid 7139] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7138] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7141] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7139] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7138] <... futex resumed>) = 0 [pid 7141] <... mprotect resumed>) = 0 [pid 7139] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7138] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7141] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7139] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7141] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7139] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7141] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7139] <... futex resumed>) = 1 [pid 7138] <... futex resumed>) = 0 [pid 7139] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7138] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7139] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7138] <... futex resumed>) = 0 ./strace-static-x86_64: Process 7143 attached [pid 7139] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7138] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7143] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7141] <... clone3 resumed> => {parent_tid=[7143]}, 88) = 7143 [pid 7139] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7143] <... rseq resumed>) = 0 [pid 7141] rt_sigprocmask(SIG_SETMASK, [], [pid 7139] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7143] set_robust_list(0x7fb72497a9a0, 24 [pid 7141] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7143] <... set_robust_list resumed>) = 0 [pid 7139] <... futex resumed>) = 1 [pid 7141] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7138] <... futex resumed>) = 0 [pid 7143] rt_sigprocmask(SIG_SETMASK, [], [pid 7141] <... futex resumed>) = 0 [pid 7139] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7143] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7138] exit_group(0 [pid 7141] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7143] memfd_create("syzkaller", 0 [pid 7139] <... futex resumed>) = ? [pid 7138] <... exit_group resumed>) = ? [pid 7139] +++ exited with 0 +++ [pid 7138] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7138, si_uid=0, si_status=0, si_utime=0, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 7143] <... memfd_create resumed>) = 3 [pid 7143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7144 attached [pid 7144] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7144 [pid 7144] <... set_robust_list resumed>) = 0 [pid 7144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7144] setpgid(0, 0) = 0 [pid 7144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 7144] write(3, "1000", 4) = 4 [pid 7144] close(3) = 0 [pid 7144] write(1, "executing program\n", 18) = 18 [pid 7144] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7144] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7144] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7144] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7144] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7145 attached [pid 7145] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7144] <... clone3 resumed> => {parent_tid=[7145]}, 88) = 7145 [pid 7145] <... rseq resumed>) = 0 [pid 7144] rt_sigprocmask(SIG_SETMASK, [], [pid 7145] set_robust_list(0x7fb72497a9a0, 24 [pid 7144] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7145] <... set_robust_list resumed>) = 0 [pid 7144] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7145] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7144] <... futex resumed>) = 0 [pid 7144] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7145] memfd_create("syzkaller", 0) = 3 [pid 7145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7143] <... write resumed>) = 16777216 [pid 7143] munmap(0x7fb71c400000, 138412032) = 0 [pid 7143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7143] close(3 [pid 7142] <... write resumed>) = 16777216 [pid 7142] munmap(0x7fb71c400000, 138412032 [pid 7145] <... write resumed>) = 16777216 [pid 7145] munmap(0x7fb71c400000, 138412032 [pid 7142] <... munmap resumed>) = 0 [pid 7142] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7142] close(3 [pid 7145] <... munmap resumed>) = 0 [pid 7145] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7145] close(3 [pid 7143] <... close resumed>) = 0 [pid 7143] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7143] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7141] <... futex resumed>) = 0 [pid 7141] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7143] <... futex resumed>) = 0 [pid 7141] <... futex resumed>) = 1 [pid 7143] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7141] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7143] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7143] <... futex resumed>) = 0 [pid 7143] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7141] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7143] <... futex resumed>) = 0 [pid 7141] <... futex resumed>) = 1 [pid 7143] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7141] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7143] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7143] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7143] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7141] <... futex resumed>) = 0 [pid 7141] exit_group(0 [pid 7143] <... futex resumed>) = ? [pid 7141] <... exit_group resumed>) = ? [pid 7143] +++ exited with 0 +++ [pid 7141] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7141, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7146 ./strace-static-x86_64: Process 7146 attached [pid 7146] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7146] setpgid(0, 0) = 0 [pid 7146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 7146] write(3, "1000", 4) = 4 [pid 7146] close(3) = 0 [pid 7146] write(1, "executing program\n", 18) = 18 [pid 7146] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7146] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7146] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7146] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7146] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7146] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7147 attached [pid 7147] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7146] <... clone3 resumed> => {parent_tid=[7147]}, 88) = 7147 [pid 7147] <... rseq resumed>) = 0 [pid 7146] rt_sigprocmask(SIG_SETMASK, [], [pid 7147] set_robust_list(0x7fb72497a9a0, 24 [pid 7146] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7147] <... set_robust_list resumed>) = 0 [pid 7147] rt_sigprocmask(SIG_SETMASK, [], [pid 7146] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7147] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7146] <... futex resumed>) = 0 [pid 7147] memfd_create("syzkaller", 0 [pid 7146] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7147] <... memfd_create resumed>) = 3 [pid 7147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7145] <... close resumed>) = 0 [pid 7145] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7144] <... futex resumed>) = 0 [pid 7144] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7144] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7145] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7145] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7144] <... futex resumed>) = 0 [pid 7145] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7144] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7145] <... futex resumed>) = 0 [pid 7144] <... futex resumed>) = 1 [pid 7144] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7145] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7145] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7144] <... futex resumed>) = 0 [pid 7145] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7144] exit_group(0) = ? [pid 7145] <... futex resumed>) = ? [pid 7145] +++ exited with 0 +++ [pid 7144] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7144, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7148 attached , child_tidptr=0x55556c203690) = 7148 [pid 7142] <... close resumed>) = 0 [pid 7148] set_robust_list(0x55556c2036a0, 24 [pid 7142] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7148] <... set_robust_list resumed>) = 0 [pid 7142] <... futex resumed>) = 1 [pid 7140] <... futex resumed>) = 0 [pid 7148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7142] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7148] <... prctl resumed>) = 0 [pid 7140] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7148] setpgid(0, 0 [pid 7142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7140] <... futex resumed>) = 0 [pid 7148] <... setpgid resumed>) = 0 [pid 7142] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7140] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7142] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7142] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7142] <... futex resumed>) = 0 [pid 7140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7140] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7142] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7148] <... openat resumed>) = 3 [pid 7142] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7140] <... futex resumed>) = 0 [pid 7142] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7148] write(3, "1000", 4 [pid 7140] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7148] <... write resumed>) = 4 [pid 7140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7148] close(3) = 0 executing program [pid 7142] <... futex resumed>) = 0 [pid 7140] exit_group(0 [pid 7148] write(1, "executing program\n", 18 [pid 7142] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7148] <... write resumed>) = 18 [pid 7142] <... futex resumed>) = ? [pid 7140] <... exit_group resumed>) = ? [pid 7148] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7142] +++ exited with 0 +++ [pid 7140] +++ exited with 0 +++ [pid 7148] <... futex resumed>) = 0 [pid 7148] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7140, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7148] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7148] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 7148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7148] <... mmap resumed>) = 0x7fb72495a000 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7149 attached [pid 7148] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7149 [pid 7149] set_robust_list(0x55556c2036a0, 24 [pid 7148] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7149] <... set_robust_list resumed>) = 0 [pid 7149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7149] setpgid(0, 0) = 0 [pid 7149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7148] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7148] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7150 attached [pid 7149] write(3, "1000", 4) = 4 [pid 7148] <... clone3 resumed> => {parent_tid=[7150]}, 88) = 7150 [pid 7149] close(3 [pid 7148] rt_sigprocmask(SIG_SETMASK, [], [pid 7149] <... close resumed>) = 0 [pid 7148] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7148] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7149] write(1, "executing program\n", 18 [pid 7148] <... futex resumed>) = 0 executing program [pid 7149] <... write resumed>) = 18 [pid 7148] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7149] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7149] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7149] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7150] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7150] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7150] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7149] <... mmap resumed>) = 0x7fb72495a000 [pid 7150] memfd_create("syzkaller", 0 [pid 7149] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7150] <... memfd_create resumed>) = 3 [pid 7149] <... mprotect resumed>) = 0 [pid 7149] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7149] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7151 attached [pid 7150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7151] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7150] <... mmap resumed>) = 0x7fb71c400000 [pid 7151] set_robust_list(0x7fb72497a9a0, 24 [pid 7149] <... clone3 resumed> => {parent_tid=[7151]}, 88) = 7151 [pid 7149] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7149] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7149] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7151] <... set_robust_list resumed>) = 0 [pid 7151] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7151] memfd_create("syzkaller", 0) = 3 [pid 7151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7147] <... write resumed>) = 16777216 [pid 7150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7147] munmap(0x7fb71c400000, 138412032) = 0 [pid 7147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7147] close(3 [pid 7151] <... write resumed>) = 16777216 [pid 7147] <... close resumed>) = 0 [pid 7147] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7151] munmap(0x7fb71c400000, 138412032 [pid 7147] <... futex resumed>) = 1 [pid 7146] <... futex resumed>) = 0 [pid 7147] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7146] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7147] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7146] <... futex resumed>) = 0 [pid 7147] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7146] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7147] <... futex resumed>) = 0 [pid 7146] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7147] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7146] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7146] <... futex resumed>) = 0 [pid 7147] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7146] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7147] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7151] <... munmap resumed>) = 0 [pid 7151] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7147] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7146] <... futex resumed>) = 0 [pid 7147] <... futex resumed>) = 1 [pid 7151] close(3 [pid 7147] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7146] exit_group(0 [pid 7147] <... futex resumed>) = ? [pid 7146] <... exit_group resumed>) = ? [pid 7147] +++ exited with 0 +++ [pid 7146] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7146, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7152 attached [pid 7150] <... write resumed>) = 16777216 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7152 [pid 7152] set_robust_list(0x55556c2036a0, 24 [pid 7150] munmap(0x7fb71c400000, 138412032 [pid 7152] <... set_robust_list resumed>) = 0 [pid 7152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7150] <... munmap resumed>) = 0 [pid 7152] setpgid(0, 0executing program ) = 0 [pid 7152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7152] write(3, "1000", 4) = 4 [pid 7152] close(3) = 0 [pid 7152] write(1, "executing program\n", 18) = 18 [pid 7152] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7150] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7152] <... futex resumed>) = 0 [pid 7150] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7152] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7152] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7150] close(3 [pid 7152] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7152] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7152] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7152] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7153 attached => {parent_tid=[7153]}, 88) = 7153 [pid 7152] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7152] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7152] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7153] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7153] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7153] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7153] memfd_create("syzkaller", 0) = 3 [pid 7153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7151] <... close resumed>) = 0 [pid 7151] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7151] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7149] <... futex resumed>) = 0 [pid 7149] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7151] <... futex resumed>) = 0 [pid 7149] <... futex resumed>) = 1 [pid 7151] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7151] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7151] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7149] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7149] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7151] <... futex resumed>) = 0 [pid 7149] <... futex resumed>) = 1 [pid 7151] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7149] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7151] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7151] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7151] <... futex resumed>) = 0 [pid 7151] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7149] exit_group(0 [pid 7151] <... futex resumed>) = ? [pid 7149] <... exit_group resumed>) = ? [pid 7151] +++ exited with 0 +++ [pid 7149] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7149, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7154 ./strace-static-x86_64: Process 7154 attached [pid 7154] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7154] setpgid(0, 0) = 0 [pid 7154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7154] write(3, "1000", 4) = 4 [pid 7154] close(3) = 0 executing program [pid 7154] write(1, "executing program\n", 18) = 18 [pid 7154] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7154] <... futex resumed>) = 0 [pid 7154] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7154] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7154] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7154] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7154] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7155 attached => {parent_tid=[7155]}, 88) = 7155 [pid 7155] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7154] rt_sigprocmask(SIG_SETMASK, [], [pid 7155] <... rseq resumed>) = 0 [pid 7154] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7155] set_robust_list(0x7fb72497a9a0, 24 [pid 7154] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7155] <... set_robust_list resumed>) = 0 [pid 7154] <... futex resumed>) = 0 [pid 7155] rt_sigprocmask(SIG_SETMASK, [], [pid 7154] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7155] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7155] memfd_create("syzkaller", 0) = 3 [pid 7155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7150] <... close resumed>) = 0 [pid 7150] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7150] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7148] <... futex resumed>) = 0 [pid 7148] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7150] <... futex resumed>) = 0 [pid 7148] <... futex resumed>) = 1 [pid 7150] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7148] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7150] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7150] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7148] <... futex resumed>) = 0 [pid 7150] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 7148] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7148] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7150] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7150] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7148] <... futex resumed>) = 0 [pid 7150] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7148] exit_group(0 [pid 7150] <... futex resumed>) = ? [pid 7148] <... exit_group resumed>) = ? [pid 7150] +++ exited with 0 +++ [pid 7148] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7148, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7156 attached , child_tidptr=0x55556c203690) = 7156 [pid 7156] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7156] setpgid(0, 0) = 0 [pid 7156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7156] write(3, "1000", 4executing program ) = 4 [pid 7156] close(3) = 0 [pid 7156] write(1, "executing program\n", 18) = 18 [pid 7156] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7156] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7156] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7156] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7156] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7156] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7157 attached => {parent_tid=[7157]}, 88) = 7157 [pid 7156] rt_sigprocmask(SIG_SETMASK, [], [pid 7157] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7156] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7156] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7156] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7157] <... rseq resumed>) = 0 [pid 7157] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7157] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7157] memfd_create("syzkaller", 0) = 3 [pid 7157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7153] <... write resumed>) = 16777216 [pid 7153] munmap(0x7fb71c400000, 138412032) = 0 [pid 7153] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7153] close(3 [pid 7157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7155] <... write resumed>) = 16777216 [pid 7155] munmap(0x7fb71c400000, 138412032) = 0 [pid 7155] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7155] close(3 [pid 7153] <... close resumed>) = 0 [pid 7153] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7152] <... futex resumed>) = 0 [pid 7153] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7152] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7153] <... futex resumed>) = 0 [pid 7152] <... futex resumed>) = 1 [pid 7153] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7152] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7153] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7153] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7153] <... futex resumed>) = 0 [pid 7152] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7153] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7152] <... futex resumed>) = 0 [pid 7152] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7153] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7153] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7152] <... futex resumed>) = 0 [pid 7153] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7152] exit_group(0 [pid 7153] <... futex resumed>) = ? [pid 7152] <... exit_group resumed>) = ? [pid 7153] +++ exited with 0 +++ [pid 7152] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7152, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7157] <... write resumed>) = 16777216 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7157] munmap(0x7fb71c400000, 138412032 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7158 attached [pid 7157] <... munmap resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7158 [pid 7157] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7157] close(3 [pid 7158] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7158] setpgid(0, 0) = 0 [pid 7158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7158] write(3, "1000", 4) = 4 [pid 7158] close(3) = 0 executing program [pid 7158] write(1, "executing program\n", 18) = 18 [pid 7158] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7158] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7158] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7158] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7158] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7158] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7155] <... close resumed>) = 0 [pid 7158] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7155] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7158] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7159 attached [pid 7154] <... futex resumed>) = 0 [pid 7155] <... futex resumed>) = 1 [pid 7155] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7154] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7155] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7154] <... futex resumed>) = 0 [pid 7154] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7159] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7159] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7158] <... clone3 resumed> => {parent_tid=[7159]}, 88) = 7159 [pid 7159] rt_sigprocmask(SIG_SETMASK, [], [pid 7158] rt_sigprocmask(SIG_SETMASK, [], [pid 7159] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7159] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7158] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7158] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7159] <... futex resumed>) = 0 [pid 7158] <... futex resumed>) = 1 [pid 7159] memfd_create("syzkaller", 0 [pid 7158] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7159] <... memfd_create resumed>) = 3 [pid 7155] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7155] <... futex resumed>) = 1 [pid 7154] <... futex resumed>) = 0 [pid 7154] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7159] <... mmap resumed>) = 0x7fb71c400000 [pid 7155] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7154] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7155] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7155] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7154] <... futex resumed>) = 0 [pid 7154] exit_group(0) = ? [pid 7155] +++ exited with 0 +++ [pid 7154] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7154, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=30 /* 0.30 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7160 attached , child_tidptr=0x55556c203690) = 7160 [pid 7160] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7160] setpgid(0, 0) = 0 [pid 7160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7160] write(3, "1000", 4) = 4 [pid 7157] <... close resumed>) = 0 [pid 7160] close(3executing program ) = 0 [pid 7157] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7160] write(1, "executing program\n", 18 [pid 7156] <... futex resumed>) = 0 [pid 7160] <... write resumed>) = 18 [pid 7157] <... futex resumed>) = 1 [pid 7156] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7160] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7157] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7156] <... futex resumed>) = 0 [pid 7160] <... futex resumed>) = 0 [pid 7157] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7156] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7160] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7157] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7160] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7157] <... futex resumed>) = 1 [pid 7156] <... futex resumed>) = 0 [pid 7160] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7157] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7156] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7160] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7156] <... futex resumed>) = 0 [pid 7160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7157] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7156] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7160] <... mmap resumed>) = 0x7fb72495a000 [pid 7157] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7160] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7157] <... futex resumed>) = 0 [pid 7156] exit_group(0 [pid 7160] <... mprotect resumed>) = 0 [pid 7156] <... exit_group resumed>) = ? [pid 7160] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7157] +++ exited with 0 +++ [pid 7160] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7160] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7161 attached [pid 7156] +++ exited with 0 +++ [pid 7161] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7160] <... clone3 resumed> => {parent_tid=[7161]}, 88) = 7161 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7156, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 7161] <... rseq resumed>) = 0 [pid 7160] rt_sigprocmask(SIG_SETMASK, [], [pid 7161] set_robust_list(0x7fb72497a9a0, 24 [pid 7160] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7161] <... set_robust_list resumed>) = 0 [pid 7160] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7161] rt_sigprocmask(SIG_SETMASK, [], [pid 7160] <... futex resumed>) = 0 [pid 7161] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7160] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7161] memfd_create("syzkaller", 0) = 3 [pid 7161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7162 attached , child_tidptr=0x55556c203690) = 7162 [pid 7159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7162] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7162] setpgid(0, 0) = 0 [pid 7162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7162] write(3, "1000", 4) = 4 executing program [pid 7162] close(3) = 0 [pid 7162] write(1, "executing program\n", 18) = 18 [pid 7162] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7162] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7162] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7162] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7162] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7162] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7162] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7163 attached [pid 7163] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7162] <... clone3 resumed> => {parent_tid=[7163]}, 88) = 7163 [pid 7163] <... rseq resumed>) = 0 [pid 7162] rt_sigprocmask(SIG_SETMASK, [], [pid 7163] set_robust_list(0x7fb72497a9a0, 24 [pid 7162] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7163] <... set_robust_list resumed>) = 0 [pid 7162] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7163] rt_sigprocmask(SIG_SETMASK, [], [pid 7162] <... futex resumed>) = 0 [pid 7163] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7162] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7163] memfd_create("syzkaller", 0) = 3 [pid 7161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7159] <... write resumed>) = 16777216 [pid 7159] munmap(0x7fb71c400000, 138412032) = 0 [pid 7161] <... write resumed>) = 16777216 [pid 7161] munmap(0x7fb71c400000, 138412032 [pid 7159] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7159] close(3 [pid 7161] <... munmap resumed>) = 0 [pid 7161] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7161] close(3 [pid 7159] <... close resumed>) = 0 [pid 7159] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7158] <... futex resumed>) = 0 [pid 7159] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7158] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7158] <... futex resumed>) = 0 [pid 7159] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7158] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7159] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7159] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7158] <... futex resumed>) = 0 [pid 7159] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7158] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7158] <... futex resumed>) = 0 [pid 7159] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7159] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7159] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7158] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7158] exit_group(0) = ? [pid 7159] <... futex resumed>) = ? [pid 7159] +++ exited with 0 +++ [pid 7158] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7158, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7164 ./strace-static-x86_64: Process 7164 attached [pid 7164] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7164] setpgid(0, 0) = 0 [pid 7164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7164] write(3, "1000", 4) = 4 [pid 7164] close(3) = 0 [pid 7164] write(1, "executing program\n", 18executing program ) = 18 [pid 7164] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7164] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7164] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7164] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7164] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7164] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7165 attached => {parent_tid=[7165]}, 88) = 7165 [pid 7164] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7164] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7164] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7165] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7165] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7165] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7165] memfd_create("syzkaller", 0) = 3 [pid 7165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7161] <... close resumed>) = 0 [pid 7161] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7161] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7160] <... futex resumed>) = 0 [pid 7163] <... write resumed>) = 16777216 [pid 7160] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7163] munmap(0x7fb71c400000, 138412032 [pid 7161] <... futex resumed>) = 0 [pid 7160] <... futex resumed>) = 1 [pid 7161] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7160] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7161] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7161] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7160] <... futex resumed>) = 0 [pid 7161] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7160] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7161] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7160] <... futex resumed>) = 0 [pid 7160] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7161] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7161] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7160] <... futex resumed>) = 0 [pid 7161] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7160] exit_group(0 [pid 7161] <... futex resumed>) = ? [pid 7160] <... exit_group resumed>) = ? [pid 7161] +++ exited with 0 +++ [pid 7160] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7160, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7166 attached , child_tidptr=0x55556c203690) = 7166 [pid 7166] set_robust_list(0x55556c2036a0, 24 [pid 7163] <... munmap resumed>) = 0 [pid 7166] <... set_robust_list resumed>) = 0 [pid 7163] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7163] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7166] <... prctl resumed>) = 0 [pid 7163] close(3 [pid 7166] setpgid(0, 0) = 0 [pid 7166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216executing program [pid 7166] <... openat resumed>) = 3 [pid 7166] write(3, "1000", 4) = 4 [pid 7166] close(3) = 0 [pid 7166] write(1, "executing program\n", 18) = 18 [pid 7166] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7166] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7166] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7166] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7166] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7166] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7167]}, 88) = 7167 [pid 7166] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7166] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7166] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7167 attached [pid 7167] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7167] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7167] memfd_create("syzkaller", 0) = 3 [pid 7167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7163] <... close resumed>) = 0 [pid 7163] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7162] <... futex resumed>) = 0 [pid 7162] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7162] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7163] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7163] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7162] <... futex resumed>) = 0 [pid 7163] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7162] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7162] <... futex resumed>) = 0 [pid 7163] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7162] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7163] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7163] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7162] exit_group(0 [pid 7163] <... futex resumed>) = ? [pid 7162] <... exit_group resumed>) = ? [pid 7163] +++ exited with 0 +++ [pid 7162] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7162, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7168 attached , child_tidptr=0x55556c203690) = 7168 [pid 7168] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7165] <... write resumed>) = 16777216 [pid 7168] <... prctl resumed>) = 0 [pid 7165] munmap(0x7fb71c400000, 138412032 [pid 7168] setpgid(0, 0) = 0 [pid 7168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7168] write(3, "1000", 4) = 4 [pid 7168] close(3) = 0 executing program [pid 7168] write(1, "executing program\n", 18) = 18 [pid 7168] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7168] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7168] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7168] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7168] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7168] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7165] <... munmap resumed>) = 0 [pid 7165] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 7169 attached ) = -1 EBUSY (Device or resource busy) [pid 7169] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7168] <... clone3 resumed> => {parent_tid=[7169]}, 88) = 7169 [pid 7169] <... rseq resumed>) = 0 [pid 7168] rt_sigprocmask(SIG_SETMASK, [], [pid 7165] close(3 [pid 7169] set_robust_list(0x7fb72497a9a0, 24 [pid 7168] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7169] <... set_robust_list resumed>) = 0 [pid 7169] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7169] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7168] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7169] <... futex resumed>) = 0 [pid 7169] memfd_create("syzkaller", 0 [pid 7168] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7169] <... memfd_create resumed>) = 3 [pid 7169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7167] <... write resumed>) = 16777216 [pid 7167] munmap(0x7fb71c400000, 138412032) = 0 [pid 7167] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7167] close(3 [pid 7169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7165] <... close resumed>) = 0 [pid 7165] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7164] <... futex resumed>) = 0 [pid 7165] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7164] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7165] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7164] <... futex resumed>) = 0 [pid 7165] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7164] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7165] <... futex resumed>) = 0 [pid 7164] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7165] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7164] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7164] <... futex resumed>) = 0 [pid 7165] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7164] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7165] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7165] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7164] <... futex resumed>) = 0 [pid 7165] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7164] exit_group(0 [pid 7165] <... futex resumed>) = ? [pid 7164] <... exit_group resumed>) = ? [pid 7165] +++ exited with 0 +++ [pid 7164] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7164, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7170 ./strace-static-x86_64: Process 7170 attached [pid 7170] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7170] setpgid(0, 0) = 0 [pid 7170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7170] write(3, "1000", 4) = 4 [pid 7170] close(3) = 0 [pid 7170] write(1, "executing program\n", 18executing program ) = 18 [pid 7170] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7170] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7167] <... close resumed>) = 0 [pid 7170] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7167] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7170] <... mmap resumed>) = 0x7fb72495a000 [pid 7170] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7167] <... futex resumed>) = 1 [pid 7166] <... futex resumed>) = 0 [pid 7170] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7167] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7166] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7170] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7167] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7166] <... futex resumed>) = 0 ./strace-static-x86_64: Process 7171 attached [pid 7166] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7171] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7170] <... clone3 resumed> => {parent_tid=[7171]}, 88) = 7171 [pid 7167] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7166] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7171] <... rseq resumed>) = 0 [pid 7170] rt_sigprocmask(SIG_SETMASK, [], [pid 7166] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7171] set_robust_list(0x7fb72497a9a0, 24 [pid 7170] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7167] <... futex resumed>) = 0 [pid 7166] <... futex resumed>) = 0 [pid 7171] <... set_robust_list resumed>) = 0 [pid 7170] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7167] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7166] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7171] rt_sigprocmask(SIG_SETMASK, [], [pid 7170] <... futex resumed>) = 0 [pid 7167] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7171] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7170] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7167] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7166] <... futex resumed>) = 0 [pid 7167] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7171] memfd_create("syzkaller", 0 [pid 7166] exit_group(0 [pid 7171] <... memfd_create resumed>) = 3 [pid 7167] <... futex resumed>) = ? [pid 7166] <... exit_group resumed>) = ? [pid 7167] +++ exited with 0 +++ [pid 7171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7166] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7166, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7172 attached , child_tidptr=0x55556c203690) = 7172 [pid 7172] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7172] setpgid(0, 0) = 0 [pid 7172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7172] write(3, "1000", 4) = 4 [pid 7172] close(3) = 0 executing program [pid 7172] write(1, "executing program\n", 18) = 18 [pid 7172] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7172] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7172] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7172] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7172] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7172] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7173 attached => {parent_tid=[7173]}, 88) = 7173 [pid 7172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7172] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7173] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7172] <... futex resumed>) = 0 [pid 7173] <... rseq resumed>) = 0 [pid 7172] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7173] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7173] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7173] memfd_create("syzkaller", 0) = 3 [pid 7173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7169] <... write resumed>) = 16777216 [pid 7169] munmap(0x7fb71c400000, 138412032) = 0 [pid 7171] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7169] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7169] close(3 [pid 7173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 7169] <... close resumed>) = 0 [pid 7173] munmap(0x7fb71c400000, 138412032 [pid 7169] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7171] <... write resumed>) = 16777216 [pid 7171] munmap(0x7fb71c400000, 138412032 [pid 7169] <... futex resumed>) = 1 [pid 7168] <... futex resumed>) = 0 [pid 7168] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7168] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7169] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7169] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7173] <... munmap resumed>) = 0 [pid 7171] <... munmap resumed>) = 0 [pid 7169] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7168] <... futex resumed>) = 0 [pid 7171] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7168] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7171] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7169] <... futex resumed>) = 0 [pid 7168] <... futex resumed>) = 1 [pid 7173] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7169] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7168] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7171] close(3 [pid 7169] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7173] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7169] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7173] close(3 [pid 7169] <... futex resumed>) = 1 [pid 7168] <... futex resumed>) = 0 [pid 7169] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7168] exit_group(0 [pid 7169] <... futex resumed>) = ? [pid 7168] <... exit_group resumed>) = ? [pid 7169] +++ exited with 0 +++ [pid 7168] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7168, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7174 attached , child_tidptr=0x55556c203690) = 7174 [pid 7174] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7174] setpgid(0, 0) = 0 [pid 7174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7174] write(3, "1000", 4) = 4 executing program [pid 7174] close(3) = 0 [pid 7174] write(1, "executing program\n", 18) = 18 [pid 7174] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7174] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7174] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7174] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7174] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7174] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7174] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7175 attached => {parent_tid=[7175]}, 88) = 7175 [pid 7175] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7174] rt_sigprocmask(SIG_SETMASK, [], [pid 7175] set_robust_list(0x7fb72497a9a0, 24 [pid 7174] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7175] <... set_robust_list resumed>) = 0 [pid 7174] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7175] rt_sigprocmask(SIG_SETMASK, [], [pid 7174] <... futex resumed>) = 0 [pid 7175] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7174] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7175] memfd_create("syzkaller", 0) = 3 [pid 7175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7173] <... close resumed>) = 0 [pid 7173] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7172] <... futex resumed>) = 0 [pid 7172] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7172] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7173] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7173] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7172] <... futex resumed>) = 0 [pid 7173] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7172] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7172] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7173] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7173] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7172] <... futex resumed>) = 0 [pid 7173] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7172] exit_group(0 [pid 7173] <... futex resumed>) = ? [pid 7172] <... exit_group resumed>) = ? [pid 7173] +++ exited with 0 +++ [pid 7172] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7172, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7171] <... close resumed>) = 0 [pid 7175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] <... restart_syscall resumed>) = 0 [pid 7171] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7171] <... futex resumed>) = 1 [pid 7170] <... futex resumed>) = 0 [pid 7171] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7170] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7171] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7170] <... futex resumed>) = 0 [pid 7171] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7170] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7171] <... futex resumed>) = 0 [pid 7170] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7176 attached [pid 7171] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7170] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7176] set_robust_list(0x55556c2036a0, 24 [pid 7171] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7170] <... futex resumed>) = 0 [pid 7176] <... set_robust_list resumed>) = 0 [pid 7170] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7171] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7171] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7176] setpgid(0, 0 [pid 7171] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7176] <... setpgid resumed>) = 0 [pid 7171] <... futex resumed>) = 1 [pid 7170] <... futex resumed>) = 0 [pid 7176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7171] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7170] exit_group(0 [pid 7176] <... openat resumed>) = 3 [pid 7171] <... futex resumed>) = ? [pid 7170] <... exit_group resumed>) = ? [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7176 [pid 7176] write(3, "1000", 4 [pid 7171] +++ exited with 0 +++ [pid 7170] +++ exited with 0 +++ [pid 7176] <... write resumed>) = 4 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7170, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=32 /* 0.32 s */} --- [pid 7176] close(3 [pid 5868] restart_syscall(<... resuming interrupted clone ...>executing program [pid 7176] <... close resumed>) = 0 [pid 7176] write(1, "executing program\n", 18) = 18 [pid 7176] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... restart_syscall resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7176] <... futex resumed>) = 0 [pid 7176] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7176] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7176] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 ./strace-static-x86_64: Process 7177 attached [pid 7176] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7176] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7176] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7178 attached [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7177 [pid 7178] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7176] <... clone3 resumed> => {parent_tid=[7178]}, 88) = 7178 [pid 7178] <... rseq resumed>) = 0 [pid 7176] rt_sigprocmask(SIG_SETMASK, [], [pid 7178] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7177] set_robust_list(0x55556c2036a0, 24 [pid 7176] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7178] rt_sigprocmask(SIG_SETMASK, [], [pid 7177] <... set_robust_list resumed>) = 0 [pid 7176] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7178] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7178] memfd_create("syzkaller", 0 [pid 7177] <... prctl resumed>) = 0 [pid 7176] <... futex resumed>) = 0 [pid 7177] setpgid(0, 0 [pid 7176] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7177] <... setpgid resumed>) = 0 [pid 7177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7178] <... memfd_create resumed>) = 3 [pid 7178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7177] <... openat resumed>) = 3 [pid 7178] <... mmap resumed>) = 0x7fb71c400000 [pid 7177] write(3, "1000", 4) = 4 [pid 7177] close(3) = 0 executing program [pid 7177] write(1, "executing program\n", 18) = 18 [pid 7177] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7177] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7177] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7177] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7177] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7177] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7179]}, 88) = 7179 [pid 7177] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7177] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7177] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7179 attached [pid 7179] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7179] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7179] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7179] memfd_create("syzkaller", 0) = 3 [pid 7179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7175] <... write resumed>) = 16777216 [pid 7175] munmap(0x7fb71c400000, 138412032) = 0 [pid 7175] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7175] close(3 [pid 7179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7178] <... write resumed>) = 16777216 [pid 7178] munmap(0x7fb71c400000, 138412032) = 0 [pid 7178] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7178] close(3 [pid 7175] <... close resumed>) = 0 [pid 7175] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7175] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7174] <... futex resumed>) = 0 [pid 7174] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7175] <... futex resumed>) = 0 [pid 7174] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7175] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7175] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7174] <... futex resumed>) = 0 [pid 7174] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7175] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7174] <... futex resumed>) = 0 [pid 7174] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7175] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7175] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7174] <... futex resumed>) = 0 [pid 7175] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7174] exit_group(0) = ? [pid 7175] <... futex resumed>) = ? [pid 7175] +++ exited with 0 +++ [pid 7174] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7174, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7180 ./strace-static-x86_64: Process 7180 attached [pid 7180] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7179] <... write resumed>) = 16777216 [pid 7180] <... prctl resumed>) = 0 [pid 7180] setpgid(0, 0 [pid 7179] munmap(0x7fb71c400000, 138412032 [pid 7180] <... setpgid resumed>) = 0 [pid 7180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7180] write(3, "1000", 4) = 4 [pid 7180] close(3) = 0 [pid 7180] write(1, "executing program\n", 18executing program ) = 18 [pid 7180] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7180] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7180] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7180] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7179] <... munmap resumed>) = 0 [pid 7180] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7180] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7179] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 7181 attached ) = -1 EBUSY (Device or resource busy) [pid 7181] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7180] <... clone3 resumed> => {parent_tid=[7181]}, 88) = 7181 [pid 7180] rt_sigprocmask(SIG_SETMASK, [], [pid 7181] <... rseq resumed>) = 0 [pid 7180] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7179] close(3 [pid 7181] set_robust_list(0x7fb72497a9a0, 24 [pid 7180] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7181] <... set_robust_list resumed>) = 0 [pid 7181] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7181] memfd_create("syzkaller", 0 [pid 7180] <... futex resumed>) = 0 [pid 7181] <... memfd_create resumed>) = 3 [pid 7181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7180] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7181] <... mmap resumed>) = 0x7fb71c400000 [pid 7178] <... close resumed>) = 0 [pid 7178] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7176] <... futex resumed>) = 0 [pid 7178] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 7176] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7178] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7176] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7178] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7178] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7176] <... futex resumed>) = 0 [pid 7178] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7176] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7178] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7176] <... futex resumed>) = 0 [pid 7176] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7178] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7178] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7176] <... futex resumed>) = 0 [pid 7178] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7176] exit_group(0 [pid 7178] <... futex resumed>) = ? [pid 7176] <... exit_group resumed>) = ? [pid 7178] +++ exited with 0 +++ [pid 7176] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7176, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7182 ./strace-static-x86_64: Process 7182 attached [pid 7182] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7182] setpgid(0, 0) = 0 [pid 7182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7182] write(3, "1000", 4) = 4 [pid 7182] close(3) = 0 executing program [pid 7182] write(1, "executing program\n", 18) = 18 [pid 7182] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7182] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7182] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7182] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7182] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7182] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7183 attached => {parent_tid=[7183]}, 88) = 7183 [pid 7182] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7183] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7183] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7183] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7183] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7182] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7183] <... futex resumed>) = 0 [pid 7182] <... futex resumed>) = 1 [pid 7183] memfd_create("syzkaller", 0 [pid 7182] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7183] <... memfd_create resumed>) = 3 [pid 7183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7179] <... close resumed>) = 0 [pid 7179] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7177] <... futex resumed>) = 0 [pid 7177] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7177] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7179] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7179] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7177] <... futex resumed>) = 0 [pid 7179] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7177] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7177] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7179] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7179] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7177] <... futex resumed>) = 0 [pid 7177] exit_group(0) = ? [pid 7179] +++ exited with 0 +++ [pid 7177] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7177, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7184 ./strace-static-x86_64: Process 7184 attached [pid 7184] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7184] setpgid(0, 0) = 0 executing program [pid 7184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7184] write(3, "1000", 4) = 4 [pid 7184] close(3) = 0 [pid 7184] write(1, "executing program\n", 18) = 18 [pid 7184] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7184] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7184] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7184] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7184] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7184] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7185 attached => {parent_tid=[7185]}, 88) = 7185 [pid 7184] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7184] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7185] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7184] <... futex resumed>) = 0 [pid 7183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7185] <... rseq resumed>) = 0 [pid 7184] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7185] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7185] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7185] memfd_create("syzkaller", 0) = 3 [pid 7185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7181] <... write resumed>) = 16777216 [pid 7181] munmap(0x7fb71c400000, 138412032) = 0 [pid 7181] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7181] close(3 [pid 7183] <... write resumed>) = 16777216 [pid 7183] munmap(0x7fb71c400000, 138412032) = 0 [pid 7183] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7183] close(3 [pid 7181] <... close resumed>) = 0 [pid 7181] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7180] <... futex resumed>) = 0 [pid 7180] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7180] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7181] <... futex resumed>) = 1 [pid 7181] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7181] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7180] <... futex resumed>) = 0 [pid 7181] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7180] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7180] <... futex resumed>) = 0 [pid 7180] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7181] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7181] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7180] <... futex resumed>) = 0 [pid 7181] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7180] exit_group(0 [pid 7181] <... futex resumed>) = ? [pid 7180] <... exit_group resumed>) = ? [pid 7181] +++ exited with 0 +++ [pid 7180] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7180, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7186 attached , child_tidptr=0x55556c203690) = 7186 [pid 7186] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7186] setpgid(0, 0) = 0 [pid 7186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 7186] write(3, "1000", 4) = 4 [pid 7186] close(3) = 0 [pid 7186] write(1, "executing program\n", 18) = 18 [pid 7186] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7186] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7186] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7186] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7186] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7186] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7186] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7187 attached [pid 7183] <... close resumed>) = 0 [pid 7187] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7186] <... clone3 resumed> => {parent_tid=[7187]}, 88) = 7187 [pid 7183] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7187] <... rseq resumed>) = 0 [pid 7186] rt_sigprocmask(SIG_SETMASK, [], [pid 7187] set_robust_list(0x7fb72497a9a0, 24 [pid 7186] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7183] <... futex resumed>) = 1 [pid 7182] <... futex resumed>) = 0 [pid 7187] <... set_robust_list resumed>) = 0 [pid 7186] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7183] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7182] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7187] rt_sigprocmask(SIG_SETMASK, [], [pid 7186] <... futex resumed>) = 0 [pid 7183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7182] <... futex resumed>) = 0 [pid 7187] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7186] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7183] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7182] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7183] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7187] memfd_create("syzkaller", 0 [pid 7183] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7182] <... futex resumed>) = 0 [pid 7187] <... memfd_create resumed>) = 3 [pid 7183] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7182] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7182] <... futex resumed>) = 0 [pid 7187] <... mmap resumed>) = 0x7fb71c400000 [pid 7183] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7182] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7183] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7185] <... write resumed>) = 16777216 [pid 7183] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7185] munmap(0x7fb71c400000, 138412032 [pid 7183] <... futex resumed>) = 1 [pid 7182] <... futex resumed>) = 0 [pid 7182] exit_group(0) = ? [pid 7185] <... munmap resumed>) = 0 [pid 7185] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7183] +++ exited with 0 +++ [pid 7182] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7182, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 7185] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7185] close(3 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7188 attached , child_tidptr=0x55556c203690) = 7188 [pid 7188] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7188] setpgid(0, 0) = 0 [pid 7188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7188] write(3, "1000", 4) = 4 [pid 7188] close(3executing program ) = 0 [pid 7188] write(1, "executing program\n", 18) = 18 [pid 7188] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7188] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7188] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7188] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7188] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7188] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7189]}, 88) = 7189 [pid 7188] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 7189 attached NULL, 8) = 0 [pid 7188] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7188] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7189] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7189] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7189] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7189] memfd_create("syzkaller", 0) = 3 [pid 7189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7185] <... close resumed>) = 0 [pid 7185] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7184] <... futex resumed>) = 0 [pid 7185] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7184] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7185] <... futex resumed>) = 0 [pid 7184] <... futex resumed>) = 1 [pid 7185] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7184] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7185] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7185] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7184] <... futex resumed>) = 0 [pid 7185] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7184] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7185] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7184] <... futex resumed>) = 0 [pid 7185] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7184] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7185] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7184] exit_group(0) = ? [pid 7185] <... futex resumed>) = ? [pid 7185] +++ exited with 0 +++ [pid 7184] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7184, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7190 ./strace-static-x86_64: Process 7190 attached [pid 7190] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7190] setpgid(0, 0) = 0 [pid 7190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 7190] write(3, "1000", 4) = 4 [pid 7190] close(3) = 0 [pid 7190] write(1, "executing program\n", 18) = 18 [pid 7190] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7190] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7190] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7190] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7190] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7190] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7191 attached => {parent_tid=[7191]}, 88) = 7191 [pid 7191] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7190] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7191] <... rseq resumed>) = 0 [pid 7190] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7190] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7191] set_robust_list(0x7fb72497a9a0, 24 [pid 7187] <... write resumed>) = 16777216 [pid 7191] <... set_robust_list resumed>) = 0 [pid 7187] munmap(0x7fb71c400000, 138412032 [pid 7191] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7191] memfd_create("syzkaller", 0) = 3 [pid 7191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7187] <... munmap resumed>) = 0 [pid 7187] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7187] close(3 [pid 7189] <... write resumed>) = 16777216 [pid 7189] munmap(0x7fb71c400000, 138412032 [pid 7191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7189] <... munmap resumed>) = 0 [pid 7189] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7189] close(3 [pid 7187] <... close resumed>) = 0 [pid 7187] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7187] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7186] <... futex resumed>) = 0 [pid 7186] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7187] <... futex resumed>) = 0 [pid 7187] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7187] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7187] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7186] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7186] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7187] <... futex resumed>) = 0 [pid 7186] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7187] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7187] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7186] <... futex resumed>) = 0 [pid 7187] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7186] exit_group(0) = ? [pid 7187] <... futex resumed>) = ? [pid 7187] +++ exited with 0 +++ [pid 7186] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7186, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7192 ./strace-static-x86_64: Process 7192 attached [pid 7192] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7192] setpgid(0, 0) = 0 [pid 7192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7192] write(3, "1000", 4executing program ) = 4 [pid 7192] close(3) = 0 [pid 7192] write(1, "executing program\n", 18) = 18 [pid 7192] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7192] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7192] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7192] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7192] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7192] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7193 attached => {parent_tid=[7193]}, 88) = 7193 [pid 7192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7192] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7192] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7193] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7193] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7193] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7193] memfd_create("syzkaller", 0) = 3 [pid 7193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7189] <... close resumed>) = 0 [pid 7189] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7188] <... futex resumed>) = 0 [pid 7189] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7188] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7188] <... futex resumed>) = 0 [pid 7189] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7188] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7189] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7189] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7188] <... futex resumed>) = 0 [pid 7188] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7188] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7189] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7189] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7188] <... futex resumed>) = 0 [pid 7188] exit_group(0) = ? [pid 7189] +++ exited with 0 +++ [pid 7188] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7188, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7194 ./strace-static-x86_64: Process 7194 attached [pid 7194] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7194] setpgid(0, 0) = 0 [pid 7194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7194] write(3, "1000", 4) = 4 [pid 7194] close(3) = 0 executing program [pid 7194] write(1, "executing program\n", 18) = 18 [pid 7194] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7191] <... write resumed>) = 16777216 [pid 7194] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7194] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7194] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7194] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7191] munmap(0x7fb71c400000, 138412032 [pid 7194] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7195 attached [pid 7195] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7194] <... clone3 resumed> => {parent_tid=[7195]}, 88) = 7195 [pid 7195] <... rseq resumed>) = 0 [pid 7194] rt_sigprocmask(SIG_SETMASK, [], [pid 7195] set_robust_list(0x7fb72497a9a0, 24 [pid 7194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7195] <... set_robust_list resumed>) = 0 [pid 7194] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7195] rt_sigprocmask(SIG_SETMASK, [], [pid 7194] <... futex resumed>) = 0 [pid 7195] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7194] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7195] memfd_create("syzkaller", 0) = 3 [pid 7193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7191] <... munmap resumed>) = 0 [pid 7195] <... mmap resumed>) = 0x7fb71c400000 [pid 7191] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7191] close(3 [pid 7195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7193] <... write resumed>) = 16777216 [pid 7191] <... close resumed>) = 0 [pid 7193] munmap(0x7fb71c400000, 138412032 [pid 7191] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7190] <... futex resumed>) = 0 [pid 7190] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7191] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7190] <... futex resumed>) = 0 [pid 7191] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7190] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7191] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7193] <... munmap resumed>) = 0 [pid 7191] <... futex resumed>) = 1 [pid 7190] <... futex resumed>) = 0 [pid 7193] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7191] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7190] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7193] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7190] <... futex resumed>) = 0 [pid 7191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7193] close(3 [pid 7190] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7191] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7191] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7190] <... futex resumed>) = 0 [pid 7191] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7190] exit_group(0 [pid 7191] <... futex resumed>) = ? [pid 7190] <... exit_group resumed>) = ? [pid 7191] +++ exited with 0 +++ [pid 7190] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7190, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7196 attached [pid 7196] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7196 [pid 7196] <... set_robust_list resumed>) = 0 [pid 7196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7196] setpgid(0, 0) = 0 [pid 7196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7196] write(3, "1000", 4) = 4 [pid 7196] close(3) = 0 executing program [pid 7196] write(1, "executing program\n", 18) = 18 [pid 7196] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7196] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7196] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7196] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7196] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7197 attached => {parent_tid=[7197]}, 88) = 7197 [pid 7196] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7197] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7196] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7197] <... rseq resumed>) = 0 [pid 7197] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7197] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7197] memfd_create("syzkaller", 0) = 3 [pid 7197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7196] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7195] <... write resumed>) = 16777216 [pid 7195] munmap(0x7fb71c400000, 138412032) = 0 [pid 7195] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7195] close(3 [pid 7193] <... close resumed>) = 0 [pid 7197] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7193] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7192] <... futex resumed>) = 0 [pid 7192] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7192] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7193] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7193] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7192] <... futex resumed>) = 0 [pid 7193] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7192] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7193] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7192] <... futex resumed>) = 0 [pid 7193] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7192] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7193] <... futex resumed>) = 0 [pid 7192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7193] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7192] exit_group(0 [pid 7193] <... futex resumed>) = ? [pid 7192] <... exit_group resumed>) = ? [pid 7193] +++ exited with 0 +++ [pid 7192] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7192, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7198 attached , child_tidptr=0x55556c203690) = 7198 [pid 7198] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7198] setpgid(0, 0) = 0 [pid 7198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7198] write(3, "1000", 4) = 4 [pid 7198] close(3) = 0 executing program [pid 7198] write(1, "executing program\n", 18) = 18 [pid 7198] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7198] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7198] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7198] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7198] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7198] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7198] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7199 attached => {parent_tid=[7199]}, 88) = 7199 [pid 7199] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7198] rt_sigprocmask(SIG_SETMASK, [], [pid 7199] <... rseq resumed>) = 0 [pid 7198] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7199] set_robust_list(0x7fb72497a9a0, 24 [pid 7198] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7199] <... set_robust_list resumed>) = 0 [pid 7198] <... futex resumed>) = 0 [pid 7199] rt_sigprocmask(SIG_SETMASK, [], [pid 7198] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7199] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7199] memfd_create("syzkaller", 0) = 3 [pid 7199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7195] <... close resumed>) = 0 [pid 7195] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7194] <... futex resumed>) = 0 [pid 7195] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7194] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7195] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7194] <... futex resumed>) = 0 [pid 7195] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7194] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7195] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7195] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7194] <... futex resumed>) = 0 [pid 7195] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7194] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7195] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7194] <... futex resumed>) = 0 [pid 7195] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7194] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7195] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7195] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7194] <... futex resumed>) = 0 [pid 7195] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7194] exit_group(0 [pid 7195] <... futex resumed>) = ? [pid 7194] <... exit_group resumed>) = ? [pid 7195] +++ exited with 0 +++ [pid 7194] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7194, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7200 attached , child_tidptr=0x55556c203690) = 7200 [pid 7200] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7200] setpgid(0, 0) = 0 [pid 7200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7200] write(3, "1000", 4) = 4 [pid 7200] close(3executing program ) = 0 [pid 7200] write(1, "executing program\n", 18) = 18 [pid 7200] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7200] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7200] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7200] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7200] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7201 attached => {parent_tid=[7201]}, 88) = 7201 [pid 7200] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7200] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7200] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7201] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7201] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7201] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7201] memfd_create("syzkaller", 0) = 3 [pid 7201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7197] <... write resumed>) = 16777216 [pid 7197] munmap(0x7fb71c400000, 138412032) = 0 [pid 7197] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7197] close(3 [pid 7199] <... write resumed>) = 16777216 [pid 7199] munmap(0x7fb71c400000, 138412032 [pid 7201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7199] <... munmap resumed>) = 0 [pid 7199] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7199] close(3 [pid 7197] <... close resumed>) = 0 [pid 7197] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7196] <... futex resumed>) = 0 [pid 7197] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7196] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7196] <... futex resumed>) = 0 [pid 7197] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7196] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7197] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7197] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7196] <... futex resumed>) = 0 [pid 7197] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7196] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7196] <... futex resumed>) = 0 [pid 7197] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7196] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7197] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7197] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7196] <... futex resumed>) = 0 [pid 7197] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7196] exit_group(0 [pid 7197] <... futex resumed>) = ? [pid 7196] <... exit_group resumed>) = ? [pid 7197] +++ exited with 0 +++ [pid 7196] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7196, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7202 attached , child_tidptr=0x55556c203690) = 7202 [pid 7202] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7202] setpgid(0, 0) = 0 [pid 7202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7202] write(3, "1000", 4) = 4 [pid 7202] close(3) = 0 [pid 7202] write(1, "executing program\n", 18executing program ) = 18 [pid 7202] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7202] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7202] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7202] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7202] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7202] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7203 attached => {parent_tid=[7203]}, 88) = 7203 [pid 7202] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7202] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7202] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7203] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7203] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7203] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7203] memfd_create("syzkaller", 0) = 3 [pid 7203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7199] <... close resumed>) = 0 [pid 7199] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7199] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7198] <... futex resumed>) = 0 [pid 7198] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7199] <... futex resumed>) = 0 [pid 7198] <... futex resumed>) = 1 [pid 7199] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7198] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7199] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7199] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7199] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7198] <... futex resumed>) = 0 [pid 7198] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7199] <... futex resumed>) = 0 [pid 7198] <... futex resumed>) = 1 [pid 7199] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7198] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7199] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7199] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7199] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7198] <... futex resumed>) = 0 [pid 7198] exit_group(0 [pid 7199] <... futex resumed>) = ? [pid 7198] <... exit_group resumed>) = ? [pid 7199] +++ exited with 0 +++ [pid 7198] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7198, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7201] <... write resumed>) = 16777216 [pid 7201] munmap(0x7fb71c400000, 138412032 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7204 ./strace-static-x86_64: Process 7204 attached [pid 7204] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7204] setpgid(0, 0) = 0 [pid 7201] <... munmap resumed>) = 0 [pid 7204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7201] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7201] close(3 [pid 7204] <... openat resumed>) = 3 [pid 7204] write(3, "1000", 4) = 4 [pid 7204] close(3) = 0 executing program [pid 7204] write(1, "executing program\n", 18) = 18 [pid 7204] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7204] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7204] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7204] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7204] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7204] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7204] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7205 attached [pid 7205] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7204] <... clone3 resumed> => {parent_tid=[7205]}, 88) = 7205 [pid 7205] <... rseq resumed>) = 0 [pid 7204] rt_sigprocmask(SIG_SETMASK, [], [pid 7205] set_robust_list(0x7fb72497a9a0, 24 [pid 7204] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7205] <... set_robust_list resumed>) = 0 [pid 7204] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7205] rt_sigprocmask(SIG_SETMASK, [], [pid 7204] <... futex resumed>) = 0 [pid 7204] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7205] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7205] memfd_create("syzkaller", 0) = 3 [pid 7205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7201] <... close resumed>) = 0 [pid 7201] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7200] <... futex resumed>) = 0 [pid 7200] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7200] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7201] <... futex resumed>) = 1 [pid 7201] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7201] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7200] <... futex resumed>) = 0 [pid 7200] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7200] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7201] <... futex resumed>) = 1 [pid 7201] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7201] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7200] <... futex resumed>) = 0 [pid 7200] exit_group(0) = ? [pid 7201] <... futex resumed>) = ? [pid 7201] +++ exited with 0 +++ [pid 7200] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7200, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7206 ./strace-static-x86_64: Process 7206 attached [pid 7205] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7206] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7206] setpgid(0, 0) = 0 [pid 7206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7206] write(3, "1000", 4) = 4 [pid 7206] close(3) = 0 [pid 7206] write(1, "executing program\n", 18executing program ) = 18 [pid 7206] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7206] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7206] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7206] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7206] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7206] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7206] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7207 attached => {parent_tid=[7207]}, 88) = 7207 [pid 7207] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7206] rt_sigprocmask(SIG_SETMASK, [], [pid 7207] <... rseq resumed>) = 0 [pid 7206] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7207] set_robust_list(0x7fb72497a9a0, 24 [pid 7206] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7207] <... set_robust_list resumed>) = 0 [pid 7206] <... futex resumed>) = 0 [pid 7207] rt_sigprocmask(SIG_SETMASK, [], [pid 7206] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7207] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7207] memfd_create("syzkaller", 0) = 3 [pid 7207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7203] <... write resumed>) = 16777216 [pid 7203] munmap(0x7fb71c400000, 138412032) = 0 [pid 7207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7203] close(3 [pid 7205] <... write resumed>) = 16777216 [pid 7205] munmap(0x7fb71c400000, 138412032 [pid 7203] <... close resumed>) = 0 [pid 7205] <... munmap resumed>) = 0 [pid 7203] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7202] <... futex resumed>) = 0 [pid 7205] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7203] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7202] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7205] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7203] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7202] <... futex resumed>) = 0 [pid 7202] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7203] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7205] close(3 [pid 7203] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7203] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7207] <... write resumed>) = 16777216 [pid 7202] <... futex resumed>) = 0 [pid 7202] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7202] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7203] <... futex resumed>) = 1 [pid 7203] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7203] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7202] <... futex resumed>) = 0 [pid 7202] exit_group(0) = ? [pid 7203] <... futex resumed>) = ? [pid 7207] munmap(0x7fb71c400000, 138412032 [pid 7203] +++ exited with 0 +++ [pid 7202] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7202, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7208 ./strace-static-x86_64: Process 7208 attached [pid 7208] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7208] setpgid(0, 0) = 0 [pid 7208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7207] <... munmap resumed>) = 0 [pid 7208] <... openat resumed>) = 3 [pid 7208] write(3, "1000", 4 [pid 7207] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7208] <... write resumed>) = 4 [pid 7208] close(3) = 0 executing program [pid 7207] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7208] write(1, "executing program\n", 18) = 18 [pid 7208] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7208] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7207] close(3 [pid 7208] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7208] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7208] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7208] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7208] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7209 attached => {parent_tid=[7209]}, 88) = 7209 [pid 7209] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7209] set_robust_list(0x7fb72497a9a0, 24 [pid 7208] rt_sigprocmask(SIG_SETMASK, [], [pid 7209] <... set_robust_list resumed>) = 0 [pid 7208] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7209] rt_sigprocmask(SIG_SETMASK, [], [pid 7208] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7209] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7208] <... futex resumed>) = 0 [pid 7208] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7209] memfd_create("syzkaller", 0) = 3 [pid 7209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7205] <... close resumed>) = 0 [pid 7205] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7205] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7204] <... futex resumed>) = 0 [pid 7204] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7205] <... futex resumed>) = 0 [pid 7204] <... futex resumed>) = 1 [pid 7205] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7204] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7205] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7205] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7205] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7204] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7205] <... futex resumed>) = 0 [pid 7204] <... futex resumed>) = 1 [pid 7205] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7204] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7205] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7205] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7205] <... futex resumed>) = 0 [pid 7205] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7204] exit_group(0) = ? [pid 7205] <... futex resumed>) = ? [pid 7205] +++ exited with 0 +++ [pid 7204] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7204, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7207] <... close resumed>) = 0 [pid 7207] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7210 ./strace-static-x86_64: Process 7210 attached [pid 7207] <... futex resumed>) = 1 [pid 7206] <... futex resumed>) = 0 [pid 7210] set_robust_list(0x55556c2036a0, 24 [pid 7207] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7206] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7210] <... set_robust_list resumed>) = 0 [pid 7207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7206] <... futex resumed>) = 0 [pid 7210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7207] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7206] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7210] <... prctl resumed>) = 0 [pid 7207] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7210] setpgid(0, 0 [pid 7207] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7206] <... futex resumed>) = 0 [pid 7210] <... setpgid resumed>) = 0 [pid 7209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7207] <... futex resumed>) = 1 [pid 7206] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7207] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7206] <... futex resumed>) = 0 [pid 7207] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7206] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7207] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7206] exit_group(0 [pid 7207] <... futex resumed>) = ? [pid 7206] <... exit_group resumed>) = ? [pid 7207] +++ exited with 0 +++ [pid 7206] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7206, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7210] <... openat resumed>) = 3 [pid 5872] <... restart_syscall resumed>) = 0 [pid 7210] write(3, "1000", 4) = 4 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7210] close(3 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7210] <... close resumed>) = 0 [pid 7210] write(1, "executing program\n", 18 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 7211 attached [pid 7210] <... write resumed>) = 18 [pid 7210] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7211] set_robust_list(0x55556c2036a0, 24 [pid 7210] <... futex resumed>) = 0 [pid 7210] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7211] <... set_robust_list resumed>) = 0 [pid 7210] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7210] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7211] <... prctl resumed>) = 0 [pid 7210] <... mmap resumed>) = 0x7fb72495a000 [pid 7211] setpgid(0, 0 [pid 7210] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7211 [pid 7211] <... setpgid resumed>) = 0 [pid 7210] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7210] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7210] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7212 attached [pid 7211] <... openat resumed>) = 3 [pid 7211] write(3, "1000", 4) = 4 [pid 7211] close(3) = 0 executing program [pid 7210] <... clone3 resumed> => {parent_tid=[7212]}, 88) = 7212 [pid 7211] write(1, "executing program\n", 18) = 18 [pid 7210] rt_sigprocmask(SIG_SETMASK, [], [pid 7211] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7210] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7211] <... futex resumed>) = 0 [pid 7210] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7212] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7211] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7210] <... futex resumed>) = 0 [pid 7212] <... rseq resumed>) = 0 [pid 7212] set_robust_list(0x7fb72497a9a0, 24 [pid 7211] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7210] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7212] <... set_robust_list resumed>) = 0 [pid 7211] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7212] rt_sigprocmask(SIG_SETMASK, [], [pid 7211] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7212] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7212] memfd_create("syzkaller", 0 [pid 7211] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7212] <... memfd_create resumed>) = 3 [pid 7211] <... mprotect resumed>) = 0 [pid 7212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7211] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7211] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7213 attached => {parent_tid=[7213]}, 88) = 7213 [pid 7213] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7211] rt_sigprocmask(SIG_SETMASK, [], [pid 7213] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7213] rt_sigprocmask(SIG_SETMASK, [], [pid 7211] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7213] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7213] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7211] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7211] <... futex resumed>) = 0 [pid 7211] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7213] memfd_create("syzkaller", 0) = 3 [pid 7213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7209] <... write resumed>) = 16777216 [pid 7209] munmap(0x7fb71c400000, 138412032 [pid 7212] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7209] <... munmap resumed>) = 0 [pid 7209] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7209] close(3 [pid 7212] <... write resumed>) = 16777216 [pid 7212] munmap(0x7fb71c400000, 138412032) = 0 [pid 7212] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7212] close(3 [pid 7213] <... write resumed>) = 16777216 [pid 7209] <... close resumed>) = 0 [pid 7213] munmap(0x7fb71c400000, 138412032 [pid 7209] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7208] <... futex resumed>) = 0 [pid 7209] <... futex resumed>) = 1 [pid 7208] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7209] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7208] <... futex resumed>) = 0 [pid 7208] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7209] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7209] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7208] <... futex resumed>) = 0 [pid 7209] <... futex resumed>) = 1 [pid 7208] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7209] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7208] <... futex resumed>) = 0 [pid 7208] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7209] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7209] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7208] <... futex resumed>) = 0 [pid 7209] <... futex resumed>) = 1 [pid 7208] exit_group(0 [pid 7209] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7208] <... exit_group resumed>) = ? [pid 7209] <... futex resumed>) = ? [pid 7209] +++ exited with 0 +++ [pid 7208] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7208, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7213] <... munmap resumed>) = 0 [pid 7213] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5868] <... restart_syscall resumed>) = 0 [pid 7213] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7213] close(3 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7214 attached , child_tidptr=0x55556c203690) = 7214 [pid 7214] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7214] setpgid(0, 0) = 0 [pid 7214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7214] write(3, "1000", 4) = 4 [pid 7214] close(3) = 0 [pid 7214] write(1, "executing program\n", 18executing program ) = 18 [pid 7214] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7214] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7214] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7214] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7214] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7214] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7215 attached => {parent_tid=[7215]}, 88) = 7215 [pid 7214] rt_sigprocmask(SIG_SETMASK, [], [pid 7215] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7214] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7215] <... rseq resumed>) = 0 [pid 7214] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7215] set_robust_list(0x7fb72497a9a0, 24 [pid 7214] <... futex resumed>) = 0 [pid 7215] <... set_robust_list resumed>) = 0 [pid 7214] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7215] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7215] memfd_create("syzkaller", 0) = 3 [pid 7215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7212] <... close resumed>) = 0 [pid 7212] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7212] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7210] <... futex resumed>) = 0 [pid 7210] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7212] <... futex resumed>) = 0 [pid 7210] <... futex resumed>) = 1 [pid 7212] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7210] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7212] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7212] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7210] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7212] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7210] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7212] <... futex resumed>) = 0 [pid 7210] <... futex resumed>) = 1 [pid 7212] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7210] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7212] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7212] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7210] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7212] <... futex resumed>) = 0 [pid 7212] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7210] exit_group(0 [pid 7212] <... futex resumed>) = ? [pid 7210] <... exit_group resumed>) = ? [pid 7212] +++ exited with 0 +++ [pid 7210] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7210, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7216 attached , child_tidptr=0x55556c203690) = 7216 [pid 7216] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7216] setpgid(0, 0) = 0 [pid 7216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7216] write(3, "1000", 4) = 4 [pid 7216] close(3) = 0 executing program [pid 7216] write(1, "executing program\n", 18) = 18 [pid 7216] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7216] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7216] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7216] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7216] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7217 attached [pid 7217] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7216] <... clone3 resumed> => {parent_tid=[7217]}, 88) = 7217 [pid 7217] <... rseq resumed>) = 0 [pid 7216] rt_sigprocmask(SIG_SETMASK, [], [pid 7217] set_robust_list(0x7fb72497a9a0, 24 [pid 7216] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7217] <... set_robust_list resumed>) = 0 [pid 7216] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7217] rt_sigprocmask(SIG_SETMASK, [], [pid 7216] <... futex resumed>) = 0 [pid 7217] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7216] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7217] memfd_create("syzkaller", 0) = 3 [pid 7217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7213] <... close resumed>) = 0 [pid 7213] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7211] <... futex resumed>) = 0 [pid 7211] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7211] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7213] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7213] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7213] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7211] <... futex resumed>) = 0 [pid 7211] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7213] <... futex resumed>) = 0 [pid 7211] <... futex resumed>) = 1 [pid 7213] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7211] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7213] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7213] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7213] <... futex resumed>) = 0 [pid 7211] exit_group(0) = ? [pid 7213] +++ exited with 0 +++ [pid 7211] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7211, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7218 attached , child_tidptr=0x55556c203690) = 7218 [pid 7218] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7218] setpgid(0, 0) = 0 [pid 7218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7218] write(3, "1000", 4) = 4 [pid 7218] close(3) = 0 [pid 7217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216executing program [pid 7218] write(1, "executing program\n", 18) = 18 [pid 7218] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7218] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7218] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7218] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7218] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7218] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7219 attached => {parent_tid=[7219]}, 88) = 7219 [pid 7218] rt_sigprocmask(SIG_SETMASK, [], [pid 7219] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7219] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7219] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7219] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7218] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7218] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7219] <... futex resumed>) = 0 [pid 7218] <... futex resumed>) = 1 [pid 7219] memfd_create("syzkaller", 0 [pid 7218] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7219] <... memfd_create resumed>) = 3 [pid 7219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7215] <... write resumed>) = 16777216 [pid 7215] munmap(0x7fb71c400000, 138412032 [pid 7219] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7215] <... munmap resumed>) = 0 [pid 7215] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7215] close(3 [pid 7217] <... write resumed>) = 16777216 [pid 7217] munmap(0x7fb71c400000, 138412032) = 0 [pid 7217] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7217] close(3 [pid 7215] <... close resumed>) = 0 [pid 7215] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7214] <... futex resumed>) = 0 [pid 7215] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7214] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7214] <... futex resumed>) = 0 [pid 7215] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7214] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7215] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7215] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7214] <... futex resumed>) = 0 [pid 7215] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7214] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7215] <... futex resumed>) = 0 [pid 7214] <... futex resumed>) = 1 [pid 7215] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7214] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7215] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7215] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7214] <... futex resumed>) = 0 [pid 7215] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7214] exit_group(0) = ? [pid 7215] <... futex resumed>) = ? [pid 7215] +++ exited with 0 +++ [pid 7214] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7214, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7220 attached , child_tidptr=0x55556c203690) = 7220 [pid 7220] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7220] setpgid(0, 0) = 0 [pid 7220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7220] write(3, "1000", 4) = 4 [pid 7220] close(3) = 0 executing program [pid 7220] write(1, "executing program\n", 18) = 18 [pid 7220] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7220] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7220] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7220] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7220] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7220] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7220] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7221 attached => {parent_tid=[7221]}, 88) = 7221 [pid 7220] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7220] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7220] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7221] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7221] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7221] rt_sigprocmask(SIG_SETMASK, [], [pid 7219] <... write resumed>) = 16777216 [pid 7221] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7221] memfd_create("syzkaller", 0) = 3 [pid 7221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7219] munmap(0x7fb71c400000, 138412032 [pid 7221] <... mmap resumed>) = 0x7fb71c400000 [pid 7219] <... munmap resumed>) = 0 [pid 7219] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7219] close(3 [pid 7217] <... close resumed>) = 0 [pid 7217] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7216] <... futex resumed>) = 0 [pid 7217] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 7216] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7217] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7216] <... futex resumed>) = 0 [pid 7216] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7217] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7217] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7216] <... futex resumed>) = 0 [pid 7216] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7216] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7217] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7217] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7216] <... futex resumed>) = 0 [pid 7216] exit_group(0) = ? [pid 7217] +++ exited with 0 +++ [pid 7216] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7216, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7222 attached , child_tidptr=0x55556c203690) = 7222 [pid 7222] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7222] setpgid(0, 0) = 0 [pid 7222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7222] write(3, "1000", 4) = 4 [pid 7222] close(3) = 0 executing program [pid 7222] write(1, "executing program\n", 18) = 18 [pid 7222] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7222] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7222] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7222] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7222] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7222] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7222] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7223 attached => {parent_tid=[7223]}, 88) = 7223 [pid 7223] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7222] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7222] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7222] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7223] <... rseq resumed>) = 0 [pid 7223] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7223] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7223] memfd_create("syzkaller", 0) = 3 [pid 7223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7219] <... close resumed>) = 0 [pid 7219] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7218] <... futex resumed>) = 0 [pid 7218] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7219] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7218] <... futex resumed>) = 0 [pid 7218] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7219] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7219] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7218] <... futex resumed>) = 0 [pid 7219] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7218] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7218] <... futex resumed>) = 0 [pid 7219] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7218] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7219] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7219] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7218] <... futex resumed>) = 0 [pid 7219] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7218] exit_group(0 [pid 7219] <... futex resumed>) = ? [pid 7218] <... exit_group resumed>) = ? [pid 7219] +++ exited with 0 +++ [pid 7218] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7218, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7224 attached , child_tidptr=0x55556c203690) = 7224 [pid 7224] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7224] setpgid(0, 0) = 0 [pid 7224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7224] write(3, "1000", 4) = 4 [pid 7224] close(3) = 0 executing program [pid 7224] write(1, "executing program\n", 18) = 18 [pid 7224] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7224] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7224] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7224] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7224] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7224] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7225 attached [pid 7225] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7224] <... clone3 resumed> => {parent_tid=[7225]}, 88) = 7225 [pid 7225] <... rseq resumed>) = 0 [pid 7224] rt_sigprocmask(SIG_SETMASK, [], [pid 7225] set_robust_list(0x7fb72497a9a0, 24 [pid 7224] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7225] <... set_robust_list resumed>) = 0 [pid 7225] rt_sigprocmask(SIG_SETMASK, [], [pid 7224] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7225] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7224] <... futex resumed>) = 0 [pid 7225] memfd_create("syzkaller", 0 [pid 7224] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7225] <... memfd_create resumed>) = 3 [pid 7225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7221] <... write resumed>) = 16777216 [pid 7221] munmap(0x7fb71c400000, 138412032) = 0 [pid 7225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7221] close(3 [pid 7223] <... write resumed>) = 16777216 [pid 7223] munmap(0x7fb71c400000, 138412032) = 0 [pid 7223] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7223] close(3 [pid 7221] <... close resumed>) = 0 [pid 7221] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7225] <... write resumed>) = 16777216 [pid 7221] <... futex resumed>) = 1 [pid 7220] <... futex resumed>) = 0 [pid 7221] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7220] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7221] <... futex resumed>) = 0 [pid 7220] <... futex resumed>) = 1 [pid 7221] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7220] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7221] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7221] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7220] <... futex resumed>) = 0 [pid 7221] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7220] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7220] <... futex resumed>) = 0 [pid 7220] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7221] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7221] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7225] munmap(0x7fb71c400000, 138412032 [pid 7221] <... futex resumed>) = 1 [pid 7220] <... futex resumed>) = 0 [pid 7221] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7220] exit_group(0) = ? [pid 7221] <... futex resumed>) = ? [pid 7221] +++ exited with 0 +++ [pid 7220] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7220, si_uid=0, si_status=0, si_utime=0, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7225] <... munmap resumed>) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7225] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7225] close(3 [pid 7223] <... close resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7223] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 7226 attached ) = 1 [pid 7222] <... futex resumed>) = 0 [pid 7223] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7222] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7222] <... futex resumed>) = 0 [pid 7223] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7222] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7223] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7226] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7223] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7226] <... prctl resumed>) = 0 [pid 7223] <... futex resumed>) = 1 [pid 7222] <... futex resumed>) = 0 [pid 7226] setpgid(0, 0 [pid 7223] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7222] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7226] <... setpgid resumed>) = 0 [pid 7223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7222] <... futex resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7226 [pid 7226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7223] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7222] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7223] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7226] <... openat resumed>) = 3 [pid 7223] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7222] <... futex resumed>) = 0 [pid 7223] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7222] exit_group(0 [pid 7226] write(3, "1000", 4 [pid 7223] <... futex resumed>) = ? [pid 7222] <... exit_group resumed>) = ? [pid 7223] +++ exited with 0 +++ [pid 7226] <... write resumed>) = 4 [pid 7226] close(3) = 0 executing program [pid 7226] write(1, "executing program\n", 18) = 18 [pid 7226] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7222] +++ exited with 0 +++ [pid 7226] <... futex resumed>) = 0 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7222, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 7226] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7226] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7226] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 5869] <... restart_syscall resumed>) = 0 [pid 7226] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7226] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7226] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7226] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7227 attached ./strace-static-x86_64: Process 7228 attached [pid 7226] <... clone3 resumed> => {parent_tid=[7227]}, 88) = 7227 [pid 7226] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7226] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7226] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7228 [pid 7227] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7228] set_robust_list(0x55556c2036a0, 24 [pid 7227] <... rseq resumed>) = 0 [pid 7228] <... set_robust_list resumed>) = 0 [pid 7227] set_robust_list(0x7fb72497a9a0, 24 [pid 7228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7227] <... set_robust_list resumed>) = 0 [pid 7228] <... prctl resumed>) = 0 [pid 7227] rt_sigprocmask(SIG_SETMASK, [], [pid 7228] setpgid(0, 0 [pid 7227] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7228] <... setpgid resumed>) = 0 [pid 7227] memfd_create("syzkaller", 0 [pid 7228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7227] <... memfd_create resumed>) = 3 [pid 7228] write(3, "1000", 4 [pid 7227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7228] <... write resumed>) = 4 [pid 7228] close(3 [pid 7227] <... mmap resumed>) = 0x7fb71c400000 [pid 7228] <... close resumed>) = 0 executing program [pid 7228] write(1, "executing program\n", 18) = 18 [pid 7228] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7228] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7228] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7228] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7228] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7228] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7229 attached => {parent_tid=[7229]}, 88) = 7229 [pid 7229] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7228] rt_sigprocmask(SIG_SETMASK, [], [pid 7229] set_robust_list(0x7fb72497a9a0, 24 [pid 7228] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7229] <... set_robust_list resumed>) = 0 [pid 7228] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7229] rt_sigprocmask(SIG_SETMASK, [], [pid 7228] <... futex resumed>) = 0 [pid 7229] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7228] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7229] memfd_create("syzkaller", 0) = 3 [pid 7229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7225] <... close resumed>) = 0 [pid 7225] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7224] <... futex resumed>) = 0 [pid 7225] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7224] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7225] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7224] <... futex resumed>) = 0 [pid 7224] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7225] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7224] <... futex resumed>) = 0 [pid 7225] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 7224] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7225] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7224] <... futex resumed>) = 0 [pid 7224] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7225] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7225] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7224] <... futex resumed>) = 0 [pid 7225] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7224] exit_group(0 [pid 7225] <... futex resumed>) = ? [pid 7224] <... exit_group resumed>) = ? [pid 7225] +++ exited with 0 +++ [pid 7224] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7224, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7230 attached , child_tidptr=0x55556c203690) = 7230 [pid 7230] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7230] setpgid(0, 0) = 0 [pid 7230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 7230] write(3, "1000", 4) = 4 [pid 7230] close(3) = 0 [pid 7230] write(1, "executing program\n", 18) = 18 [pid 7230] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7230] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7230] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7230] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7230] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7230] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7231 attached => {parent_tid=[7231]}, 88) = 7231 [pid 7231] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7230] rt_sigprocmask(SIG_SETMASK, [], [pid 7231] <... rseq resumed>) = 0 [pid 7230] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7231] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7230] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7231] rt_sigprocmask(SIG_SETMASK, [], [pid 7230] <... futex resumed>) = 0 [pid 7231] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7230] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7231] memfd_create("syzkaller", 0) = 3 [pid 7231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7227] <... write resumed>) = 16777216 [pid 7227] munmap(0x7fb71c400000, 138412032 [pid 7229] <... write resumed>) = 16777216 [pid 7227] <... munmap resumed>) = 0 [pid 7229] munmap(0x7fb71c400000, 138412032 [pid 7227] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7227] close(3 [pid 7229] <... munmap resumed>) = 0 [pid 7229] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7229] close(3 [pid 7231] <... write resumed>) = 16777216 [pid 7231] munmap(0x7fb71c400000, 138412032) = 0 [pid 7231] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7231] close(3 [pid 7229] <... close resumed>) = 0 [pid 7229] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7228] <... futex resumed>) = 0 [pid 7229] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7228] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7228] <... futex resumed>) = 0 [pid 7229] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7228] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7229] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7229] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7228] <... futex resumed>) = 0 [pid 7229] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7228] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7228] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7229] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7229] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7228] <... futex resumed>) = 0 [pid 7229] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7228] exit_group(0 [pid 7229] <... futex resumed>) = ? [pid 7228] <... exit_group resumed>) = ? [pid 7229] +++ exited with 0 +++ [pid 7228] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7228, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 7227] <... close resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7227] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7227] <... futex resumed>) = 1 [pid 7226] <... futex resumed>) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7227] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7226] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 7232 attached [pid 7227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7226] <... futex resumed>) = 0 [pid 7227] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7226] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7227] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7232] set_robust_list(0x55556c2036a0, 24 [pid 7227] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7232 [pid 7232] <... set_robust_list resumed>) = 0 [pid 7227] <... futex resumed>) = 1 [pid 7226] <... futex resumed>) = 0 [pid 7232] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7227] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7226] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7226] <... futex resumed>) = 0 [pid 7232] <... prctl resumed>) = 0 [pid 7227] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7226] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7232] setpgid(0, 0 [pid 7227] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7232] <... setpgid resumed>) = 0 [pid 7227] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7226] <... futex resumed>) = 0 [pid 7232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7227] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7226] exit_group(0 [pid 7232] <... openat resumed>) = 3 [pid 7227] <... futex resumed>) = ? [pid 7226] <... exit_group resumed>) = ? [pid 7227] +++ exited with 0 +++ [pid 7226] +++ exited with 0 +++ [pid 7232] write(3, "1000", 4) = 4 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7226, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 7232] close(3 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7232] <... close resumed>) = 0 [pid 7232] write(1, "executing program\n", 18executing program ) = 18 [pid 7232] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7232] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7232] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7232] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7232] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7233 attached => {parent_tid=[7233]}, 88) = 7233 [pid 7232] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7233] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7232] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7233] <... rseq resumed>) = 0 [pid 7233] set_robust_list(0x7fb72497a9a0, 24 [pid 7232] <... futex resumed>) = 0 [pid 7233] <... set_robust_list resumed>) = 0 [pid 7233] rt_sigprocmask(SIG_SETMASK, [], [pid 7232] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7233] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7233] memfd_create("syzkaller", 0./strace-static-x86_64: Process 7234 attached ) = 3 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7234 [pid 7234] set_robust_list(0x55556c2036a0, 24 [pid 7233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7234] <... set_robust_list resumed>) = 0 [pid 7234] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7233] <... mmap resumed>) = 0x7fb71c400000 [pid 7234] <... prctl resumed>) = 0 [pid 7234] setpgid(0, 0) = 0 [pid 7234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7234] write(3, "1000", 4) = 4 [pid 7234] close(3executing program ) = 0 [pid 7234] write(1, "executing program\n", 18) = 18 [pid 7234] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7234] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7234] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7234] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7234] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7234] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7234] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7231] <... close resumed>) = 0 ./strace-static-x86_64: Process 7235 attached [pid 7234] <... clone3 resumed> => {parent_tid=[7235]}, 88) = 7235 [pid 7235] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7231] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7235] <... rseq resumed>) = 0 [pid 7234] rt_sigprocmask(SIG_SETMASK, [], [pid 7231] <... futex resumed>) = 1 [pid 7230] <... futex resumed>) = 0 [pid 7235] set_robust_list(0x7fb72497a9a0, 24 [pid 7234] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7230] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7235] <... set_robust_list resumed>) = 0 [pid 7234] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7231] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7230] <... futex resumed>) = 0 [pid 7235] rt_sigprocmask(SIG_SETMASK, [], [pid 7234] <... futex resumed>) = 0 [pid 7231] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7230] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7234] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7231] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7230] <... futex resumed>) = 0 [pid 7235] memfd_create("syzkaller", 0 [pid 7231] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7230] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7231] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7235] <... memfd_create resumed>) = 3 [pid 7231] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7230] <... futex resumed>) = 0 [pid 7235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7230] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7235] <... mmap resumed>) = 0x7fb71c400000 [pid 7231] <... futex resumed>) = 0 [pid 7230] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7231] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7230] exit_group(0 [pid 7231] <... futex resumed>) = ? [pid 7230] <... exit_group resumed>) = ? [pid 7231] +++ exited with 0 +++ [pid 7230] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7230, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7236 attached , child_tidptr=0x55556c203690) = 7236 [pid 7236] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7236] setpgid(0, 0) = 0 [pid 7236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7236] write(3, "1000", 4) = 4 [pid 7236] close(3) = 0 executing program [pid 7236] write(1, "executing program\n", 18) = 18 [pid 7236] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7236] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7236] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7236] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7236] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7236] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7237 attached => {parent_tid=[7237]}, 88) = 7237 [pid 7237] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7236] rt_sigprocmask(SIG_SETMASK, [], [pid 7237] <... rseq resumed>) = 0 [pid 7236] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7237] set_robust_list(0x7fb72497a9a0, 24 [pid 7236] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7237] <... set_robust_list resumed>) = 0 [pid 7236] <... futex resumed>) = 0 [pid 7237] rt_sigprocmask(SIG_SETMASK, [], [pid 7236] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7237] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7237] memfd_create("syzkaller", 0) = 3 [pid 7237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7233] <... write resumed>) = 16777216 [pid 7233] munmap(0x7fb71c400000, 138412032) = 0 [pid 7233] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7233] close(3 [pid 7237] <... write resumed>) = 16777216 [pid 7237] munmap(0x7fb71c400000, 138412032 [pid 7235] <... write resumed>) = 16777216 [pid 7237] <... munmap resumed>) = 0 [pid 7235] munmap(0x7fb71c400000, 138412032 [pid 7237] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7237] close(3 [pid 7235] <... munmap resumed>) = 0 [pid 7233] <... close resumed>) = 0 [pid 7235] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7233] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7235] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7233] <... futex resumed>) = 1 [pid 7232] <... futex resumed>) = 0 [pid 7232] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7235] close(3 [pid 7233] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7232] <... futex resumed>) = 0 [pid 7233] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7232] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7233] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7232] <... futex resumed>) = 0 [pid 7233] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7232] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7233] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7232] <... futex resumed>) = 0 [pid 7233] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7232] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7233] <... futex resumed>) = 0 [pid 7232] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7233] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7232] exit_group(0 [pid 7233] <... futex resumed>) = ? [pid 7232] <... exit_group resumed>) = ? [pid 7233] +++ exited with 0 +++ [pid 7232] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7232, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7238 attached [pid 7238] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7238 [pid 7238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7238] setpgid(0, 0) = 0 [pid 7238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7238] write(3, "1000", 4) = 4 [pid 7238] close(3executing program ) = 0 [pid 7238] write(1, "executing program\n", 18) = 18 [pid 7238] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7238] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7238] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7238] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7238] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7238] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7239 attached => {parent_tid=[7239]}, 88) = 7239 [pid 7239] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7238] rt_sigprocmask(SIG_SETMASK, [], [pid 7239] <... rseq resumed>) = 0 [pid 7238] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7239] set_robust_list(0x7fb72497a9a0, 24 [pid 7238] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7239] <... set_robust_list resumed>) = 0 [pid 7238] <... futex resumed>) = 0 [pid 7239] rt_sigprocmask(SIG_SETMASK, [], [pid 7238] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7239] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7239] memfd_create("syzkaller", 0) = 3 [pid 7239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7237] <... close resumed>) = 0 [pid 7237] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7236] <... futex resumed>) = 0 [pid 7236] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7237] <... futex resumed>) = 1 [pid 7236] <... futex resumed>) = 0 [pid 7237] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7236] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7237] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7237] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7236] <... futex resumed>) = 0 [pid 7237] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7236] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7237] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7236] <... futex resumed>) = 0 [pid 7237] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7236] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7237] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7237] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7236] <... futex resumed>) = 0 [pid 7237] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7236] exit_group(0 [pid 7237] <... futex resumed>) = ? [pid 7236] <... exit_group resumed>) = ? [pid 7237] +++ exited with 0 +++ [pid 7236] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7236, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7240 ./strace-static-x86_64: Process 7240 attached [pid 7240] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7240] setpgid(0, 0) = 0 [pid 7240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7240] write(3, "1000", 4) = 4 [pid 7240] close(3executing program ) = 0 [pid 7240] write(1, "executing program\n", 18) = 18 [pid 7240] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7240] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7240] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7240] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7235] <... close resumed>) = 0 [pid 7240] <... mmap resumed>) = 0x7fb72495a000 [pid 7240] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7235] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7240] <... mprotect resumed>) = 0 [pid 7235] <... futex resumed>) = 1 [pid 7240] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7235] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7234] <... futex resumed>) = 0 [pid 7240] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7240] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7234] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7235] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7234] <... futex resumed>) = 0 ./strace-static-x86_64: Process 7241 attached [pid 7240] <... clone3 resumed> => {parent_tid=[7241]}, 88) = 7241 [pid 7235] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7240] rt_sigprocmask(SIG_SETMASK, [], [pid 7234] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7240] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7235] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7240] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7235] <... futex resumed>) = 0 [pid 7234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7240] <... futex resumed>) = 0 [pid 7235] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7234] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7241] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7240] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7234] <... futex resumed>) = 0 [pid 7241] <... rseq resumed>) = 0 [pid 7235] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7234] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7241] set_robust_list(0x7fb72497a9a0, 24 [pid 7235] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7235] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7241] <... set_robust_list resumed>) = 0 [pid 7235] <... futex resumed>) = 1 [pid 7234] <... futex resumed>) = 0 [pid 7241] rt_sigprocmask(SIG_SETMASK, [], [pid 7234] exit_group(0 [pid 7241] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7234] <... exit_group resumed>) = ? [pid 7241] memfd_create("syzkaller", 0 [pid 7235] +++ exited with 0 +++ [pid 7234] +++ exited with 0 +++ [pid 7239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7241] <... memfd_create resumed>) = 3 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7234, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 7241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7242 attached , child_tidptr=0x55556c203690) = 7242 [pid 7242] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7242] setpgid(0, 0) = 0 [pid 7242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7242] write(3, "1000", 4) = 4 [pid 7242] close(3) = 0 executing program [pid 7242] write(1, "executing program\n", 18) = 18 [pid 7242] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7242] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7242] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7242] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7242] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7242] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7243 attached => {parent_tid=[7243]}, 88) = 7243 [pid 7243] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7242] rt_sigprocmask(SIG_SETMASK, [], [pid 7243] <... rseq resumed>) = 0 [pid 7242] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7243] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7242] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7243] rt_sigprocmask(SIG_SETMASK, [], [pid 7242] <... futex resumed>) = 0 [pid 7243] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7242] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7243] memfd_create("syzkaller", 0) = 3 [pid 7243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7239] <... write resumed>) = 16777216 [pid 7239] munmap(0x7fb71c400000, 138412032) = 0 [pid 7239] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7239] close(3 [pid 7241] <... write resumed>) = 16777216 [pid 7241] munmap(0x7fb71c400000, 138412032) = 0 [pid 7241] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7241] close(3 [pid 7243] <... write resumed>) = 16777216 [pid 7243] munmap(0x7fb71c400000, 138412032 [pid 7239] <... close resumed>) = 0 [pid 7243] <... munmap resumed>) = 0 [pid 7239] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7243] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7239] <... futex resumed>) = 1 [pid 7238] <... futex resumed>) = 0 [pid 7239] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7238] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7238] <... futex resumed>) = 0 [pid 7239] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7238] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7243] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7239] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7243] close(3 [pid 7239] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7238] <... futex resumed>) = 0 [pid 7238] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7238] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7239] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7239] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7238] <... futex resumed>) = 0 [pid 7239] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7238] exit_group(0) = ? [pid 7239] <... futex resumed>) = ? [pid 7239] +++ exited with 0 +++ [pid 7238] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7238, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=30 /* 0.30 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7244 attached , child_tidptr=0x55556c203690) = 7244 [pid 7244] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7244] setpgid(0, 0) = 0 [pid 7244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7244] write(3, "1000", 4) = 4 [pid 7244] close(3executing program ) = 0 [pid 7244] write(1, "executing program\n", 18) = 18 [pid 7244] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7244] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7244] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7244] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7244] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7244] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7245 attached [pid 7245] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7244] <... clone3 resumed> => {parent_tid=[7245]}, 88) = 7245 [pid 7245] <... rseq resumed>) = 0 [pid 7244] rt_sigprocmask(SIG_SETMASK, [], [pid 7245] set_robust_list(0x7fb72497a9a0, 24 [pid 7244] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7245] <... set_robust_list resumed>) = 0 [pid 7244] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7245] rt_sigprocmask(SIG_SETMASK, [], [pid 7244] <... futex resumed>) = 0 [pid 7245] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7244] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7245] memfd_create("syzkaller", 0) = 3 [pid 7245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7241] <... close resumed>) = 0 [pid 7241] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7241] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7240] <... futex resumed>) = 0 [pid 7240] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7241] <... futex resumed>) = 0 [pid 7240] <... futex resumed>) = 1 [pid 7241] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7240] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7241] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7241] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7240] <... futex resumed>) = 0 [pid 7241] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7240] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7241] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7240] <... futex resumed>) = 0 [pid 7241] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7240] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7241] <... futex resumed>) = 0 [pid 7240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7241] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7240] exit_group(0 [pid 7241] <... futex resumed>) = ? [pid 7240] <... exit_group resumed>) = ? [pid 7241] +++ exited with 0 +++ [pid 7240] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7240, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7246 attached , child_tidptr=0x55556c203690) = 7246 [pid 7246] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7246] setpgid(0, 0) = 0 [pid 7246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7246] write(3, "1000", 4) = 4 [pid 7246] close(3) = 0 [pid 7246] write(1, "executing program\n", 18executing program ) = 18 [pid 7246] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7246] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7246] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7246] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7246] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7246] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7246] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7247 attached [pid 7247] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7246] <... clone3 resumed> => {parent_tid=[7247]}, 88) = 7247 [pid 7246] rt_sigprocmask(SIG_SETMASK, [], [pid 7247] <... rseq resumed>) = 0 [pid 7247] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7247] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7247] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7246] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7246] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7247] <... futex resumed>) = 0 [pid 7246] <... futex resumed>) = 1 [pid 7247] memfd_create("syzkaller", 0 [pid 7246] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7247] <... memfd_create resumed>) = 3 [pid 7247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7245] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7243] <... close resumed>) = 0 [pid 7243] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7242] <... futex resumed>) = 0 [pid 7243] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7242] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7243] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7242] <... futex resumed>) = 0 [pid 7243] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7242] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7243] <... futex resumed>) = 0 [pid 7243] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7242] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7243] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7242] <... futex resumed>) = 0 [pid 7243] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7242] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7243] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7242] <... futex resumed>) = 0 [pid 7243] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7242] exit_group(0 [pid 7243] <... futex resumed>) = ? [pid 7242] <... exit_group resumed>) = ? [pid 7243] +++ exited with 0 +++ [pid 7242] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7242, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7248 ./strace-static-x86_64: Process 7248 attached [pid 7248] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7248] setpgid(0, 0) = 0 executing program [pid 7248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7248] write(3, "1000", 4) = 4 [pid 7248] close(3) = 0 [pid 7248] write(1, "executing program\n", 18) = 18 [pid 7248] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7248] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7248] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7248] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7248] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7248] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7249 attached [pid 7249] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7248] <... clone3 resumed> => {parent_tid=[7249]}, 88) = 7249 [pid 7249] <... rseq resumed>) = 0 [pid 7248] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7248] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7248] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7249] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7249] memfd_create("syzkaller", 0) = 3 [pid 7249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7245] <... write resumed>) = 16777216 [pid 7245] munmap(0x7fb71c400000, 138412032) = 0 [pid 7245] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7245] close(3 [pid 7247] <... write resumed>) = 16777216 [pid 7247] munmap(0x7fb71c400000, 138412032) = 0 [pid 7249] <... write resumed>) = 16777216 [pid 7249] munmap(0x7fb71c400000, 138412032 [pid 7247] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7247] close(3 [pid 7249] <... munmap resumed>) = 0 [pid 7249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7249] close(3 [pid 7245] <... close resumed>) = 0 [pid 7245] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7244] <... futex resumed>) = 0 [pid 7245] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7244] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7245] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7245] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7244] <... futex resumed>) = 0 [pid 7245] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7244] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7245] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7245] <... futex resumed>) = 0 [pid 7244] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7245] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7244] <... futex resumed>) = 0 [pid 7245] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7244] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7245] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7245] <... futex resumed>) = 0 [pid 7245] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7244] exit_group(0 [pid 7245] <... futex resumed>) = ? [pid 7244] <... exit_group resumed>) = ? [pid 7245] +++ exited with 0 +++ [pid 7244] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7244, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7250 attached , child_tidptr=0x55556c203690) = 7250 [pid 7250] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7250] setpgid(0, 0) = 0 [pid 7250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7250] write(3, "1000", 4) = 4 [pid 7250] close(3executing program ) = 0 [pid 7250] write(1, "executing program\n", 18) = 18 [pid 7250] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7250] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7250] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7250] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7250] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7250] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7250] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7251 attached => {parent_tid=[7251]}, 88) = 7251 [pid 7251] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7250] rt_sigprocmask(SIG_SETMASK, [], [pid 7251] <... rseq resumed>) = 0 [pid 7250] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7251] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7250] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7251] rt_sigprocmask(SIG_SETMASK, [], [pid 7250] <... futex resumed>) = 0 [pid 7251] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7250] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7251] memfd_create("syzkaller", 0) = 3 [pid 7251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7247] <... close resumed>) = 0 [pid 7247] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7247] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7246] <... futex resumed>) = 0 [pid 7246] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7247] <... futex resumed>) = 0 [pid 7246] <... futex resumed>) = 1 [pid 7247] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7246] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7247] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7247] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7246] <... futex resumed>) = 0 [pid 7247] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7246] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7247] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7246] <... futex resumed>) = 0 [pid 7247] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7246] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7247] <... futex resumed>) = 0 [pid 7246] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7247] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7246] exit_group(0 [pid 7247] <... futex resumed>) = ? [pid 7246] <... exit_group resumed>) = ? [pid 7247] +++ exited with 0 +++ [pid 7246] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7246, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7252 attached , child_tidptr=0x55556c203690) = 7252 [pid 7249] <... close resumed>) = 0 [pid 7252] set_robust_list(0x55556c2036a0, 24 [pid 7249] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7252] <... set_robust_list resumed>) = 0 [pid 7252] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7249] <... futex resumed>) = 1 [pid 7248] <... futex resumed>) = 0 [pid 7252] <... prctl resumed>) = 0 [pid 7249] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7248] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7252] setpgid(0, 0 [pid 7249] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7248] <... futex resumed>) = 0 [pid 7252] <... setpgid resumed>) = 0 [pid 7248] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7249] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7252] <... openat resumed>) = 3 [pid 7249] <... futex resumed>) = 0 [pid 7248] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7252] write(3, "1000", 4 [pid 7249] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7248] <... futex resumed>) = 0 [pid 7252] <... write resumed>) = 4 [pid 7248] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7252] close(3 [pid 7249] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7252] <... close resumed>) = 0 [pid 7249] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000executing program [pid 7252] write(1, "executing program\n", 18 [pid 7249] <... futex resumed>) = 1 [pid 7248] <... futex resumed>) = 0 [pid 7252] <... write resumed>) = 18 [pid 7249] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7248] exit_group(0 [pid 7252] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7249] <... futex resumed>) = ? [pid 7248] <... exit_group resumed>) = ? [pid 7252] <... futex resumed>) = 0 [pid 7249] +++ exited with 0 +++ [pid 7248] +++ exited with 0 +++ [pid 7252] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7248, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 7252] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7252] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7252] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7252] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7251] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7252] <... mprotect resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7253 attached [pid 7253] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7253 [pid 7253] <... set_robust_list resumed>) = 0 [pid 7253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7253] setpgid(0, 0) = 0 [pid 7252] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7252] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7252] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7254 attached [pid 7253] <... openat resumed>) = 3 [pid 7254] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7253] write(3, "1000", 4 [pid 7252] <... clone3 resumed> => {parent_tid=[7254]}, 88) = 7254 executing program [pid 7254] <... rseq resumed>) = 0 [pid 7253] <... write resumed>) = 4 [pid 7252] rt_sigprocmask(SIG_SETMASK, [], [pid 7253] close(3 [pid 7252] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7253] <... close resumed>) = 0 [pid 7252] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7253] write(1, "executing program\n", 18 [pid 7252] <... futex resumed>) = 0 [pid 7253] <... write resumed>) = 18 [pid 7252] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7253] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7254] set_robust_list(0x7fb72497a9a0, 24 [pid 7253] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7254] <... set_robust_list resumed>) = 0 [pid 7253] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7253] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7254] rt_sigprocmask(SIG_SETMASK, [], [pid 7253] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7254] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7254] memfd_create("syzkaller", 0 [pid 7253] <... mmap resumed>) = 0x7fb72495a000 [pid 7253] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7254] <... memfd_create resumed>) = 3 [pid 7253] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7253] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7254] <... mmap resumed>) = 0x7fb71c400000 [pid 7253] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7255 attached => {parent_tid=[7255]}, 88) = 7255 [pid 7253] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7253] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7253] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7255] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7255] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7255] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7255] memfd_create("syzkaller", 0) = 3 [pid 7255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7254] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7251] <... write resumed>) = 16777216 [pid 7251] munmap(0x7fb71c400000, 138412032) = 0 [pid 7251] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7251] close(3) = 0 [pid 7251] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7251] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7250] <... futex resumed>) = 0 [pid 7250] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7251] <... futex resumed>) = 0 [pid 7250] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7251] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7251] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7250] <... futex resumed>) = 0 [pid 7251] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7250] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7251] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7254] <... write resumed>) = 16777216 [pid 7250] <... futex resumed>) = 0 [pid 7254] munmap(0x7fb71c400000, 138412032 [pid 7250] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7251] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7251] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7250] <... futex resumed>) = 0 [pid 7251] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7250] exit_group(0 [pid 7251] <... futex resumed>) = ? [pid 7250] <... exit_group resumed>) = ? [pid 7251] +++ exited with 0 +++ [pid 7250] +++ exited with 0 +++ [pid 7255] <... write resumed>) = 16777216 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7250, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=29 /* 0.29 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7255] munmap(0x7fb71c400000, 138412032 [pid 5869] <... restart_syscall resumed>) = 0 [pid 7254] <... munmap resumed>) = 0 [pid 7254] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7255] <... munmap resumed>) = 0 [pid 7254] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7255] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7254] close(3 [pid 7255] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7255] close(3 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7257 attached [pid 7257] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7257] setpgid(0, 0) = 0 [pid 7257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7257 [pid 7257] <... openat resumed>) = 3 [pid 7257] write(3, "1000", 4) = 4 [pid 7257] close(3) = 0 executing program [pid 7257] write(1, "executing program\n", 18) = 18 [pid 7257] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7257] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7257] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7257] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7257] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7257] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7258]}, 88) = 7258 [pid 7257] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7257] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7257] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7258 attached [pid 7258] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7258] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7258] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7258] memfd_create("syzkaller", 0) = 3 [pid 7258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7255] <... close resumed>) = 0 [pid 7255] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7255] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7253] <... futex resumed>) = 0 [pid 7253] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7255] <... futex resumed>) = 0 [pid 7253] <... futex resumed>) = 1 [pid 7255] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7253] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7255] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7255] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7255] <... futex resumed>) = 0 [pid 7255] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7253] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7253] <... futex resumed>) = 0 [pid 7255] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7253] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7255] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7255] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7253] exit_group(0 [pid 7255] <... futex resumed>) = ? [pid 7253] <... exit_group resumed>) = ? [pid 7255] +++ exited with 0 +++ [pid 7253] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7253, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7259 attached [pid 7259] set_robust_list(0x55556c2036a0, 24 [pid 7258] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7259] <... set_robust_list resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7259 [pid 7259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7259] setpgid(0, 0) = 0 [pid 7259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7259] write(3, "1000", 4) = 4 [pid 7259] close(3) = 0 [pid 7259] write(1, "executing program\n", 18executing program ) = 18 [pid 7259] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7259] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7259] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7259] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7259] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7259] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7260 attached => {parent_tid=[7260]}, 88) = 7260 [pid 7259] rt_sigprocmask(SIG_SETMASK, [], [pid 7260] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7260] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7260] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7260] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7259] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7259] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7260] <... futex resumed>) = 0 [pid 7259] <... futex resumed>) = 1 [pid 7260] memfd_create("syzkaller", 0 [pid 7259] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7260] <... memfd_create resumed>) = 3 [pid 7260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7254] <... close resumed>) = 0 [pid 7254] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7252] <... futex resumed>) = 0 [pid 7252] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7252] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7254] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7254] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7252] <... futex resumed>) = 0 [pid 7252] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7252] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7254] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7254] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7252] <... futex resumed>) = 0 [pid 7252] exit_group(0) = ? [pid 7254] <... futex resumed>) = ? [pid 7254] +++ exited with 0 +++ [pid 7252] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7252, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7261 ./strace-static-x86_64: Process 7261 attached [pid 7261] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7261] setpgid(0, 0) = 0 [pid 7261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7261] write(3, "1000", 4) = 4 [pid 7261] close(3) = 0 executing program [pid 7261] write(1, "executing program\n", 18) = 18 [pid 7261] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7261] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7261] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7261] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7261] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7261] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7261] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7262 attached => {parent_tid=[7262]}, 88) = 7262 [pid 7261] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7262] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7261] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7261] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7262] <... rseq resumed>) = 0 [pid 7262] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7262] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7262] memfd_create("syzkaller", 0) = 3 [pid 7262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7260] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7258] <... write resumed>) = 16777216 [pid 7258] munmap(0x7fb71c400000, 138412032) = 0 [pid 7258] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7258] close(3 [pid 7262] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7260] <... write resumed>) = 16777216 [pid 7260] munmap(0x7fb71c400000, 138412032) = 0 [pid 7260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7260] close(3 [pid 7258] <... close resumed>) = 0 [pid 7258] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7258] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7257] <... futex resumed>) = 0 [pid 7257] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7258] <... futex resumed>) = 0 [pid 7257] <... futex resumed>) = 1 [pid 7258] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7257] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7258] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7258] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7257] <... futex resumed>) = 0 [pid 7257] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7257] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7258] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7258] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7257] <... futex resumed>) = 0 [pid 7257] exit_group(0) = ? [pid 7258] +++ exited with 0 +++ [pid 7257] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7257, si_uid=0, si_status=0, si_utime=0, si_stime=41 /* 0.41 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7263 attached , child_tidptr=0x55556c203690) = 7263 [pid 7263] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7263] setpgid(0, 0) = 0 [pid 7263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7263] write(3, "1000", 4) = 4 [pid 7263] close(3) = 0 executing program [pid 7263] write(1, "executing program\n", 18) = 18 [pid 7263] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7262] <... write resumed>) = 16777216 [pid 7263] <... futex resumed>) = 0 [pid 7262] munmap(0x7fb71c400000, 138412032 [pid 7263] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7263] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7263] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7263] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7264 attached [pid 7264] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7263] <... clone3 resumed> => {parent_tid=[7264]}, 88) = 7264 [pid 7264] <... rseq resumed>) = 0 [pid 7263] rt_sigprocmask(SIG_SETMASK, [], [pid 7264] set_robust_list(0x7fb72497a9a0, 24 [pid 7263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7264] <... set_robust_list resumed>) = 0 [pid 7263] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7264] rt_sigprocmask(SIG_SETMASK, [], [pid 7263] <... futex resumed>) = 0 [pid 7264] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7263] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7264] memfd_create("syzkaller", 0) = 3 [pid 7264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7262] <... munmap resumed>) = 0 [pid 7262] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7262] close(3 [pid 7260] <... close resumed>) = 0 [pid 7260] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7260] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7259] <... futex resumed>) = 0 [pid 7259] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7260] <... futex resumed>) = 0 [pid 7259] <... futex resumed>) = 1 [pid 7260] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7259] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7260] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7260] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7259] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7260] <... futex resumed>) = 0 [pid 7259] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7260] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7259] <... futex resumed>) = 0 [pid 7260] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7259] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7260] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7259] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7259] exit_group(0 [pid 7260] <... futex resumed>) = ? [pid 7259] <... exit_group resumed>) = ? [pid 7260] +++ exited with 0 +++ [pid 7259] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7259, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7265 attached , child_tidptr=0x55556c203690) = 7265 [pid 7265] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7265] setpgid(0, 0) = 0 [pid 7265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7265] write(3, "1000", 4) = 4 executing program [pid 7265] close(3) = 0 [pid 7265] write(1, "executing program\n", 18) = 18 [pid 7265] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7265] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7265] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7265] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7265] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7265] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7266 attached [pid 7266] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7265] <... clone3 resumed> => {parent_tid=[7266]}, 88) = 7266 [pid 7266] <... rseq resumed>) = 0 [pid 7265] rt_sigprocmask(SIG_SETMASK, [], [pid 7266] set_robust_list(0x7fb72497a9a0, 24 [pid 7265] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7266] <... set_robust_list resumed>) = 0 [pid 7265] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7266] rt_sigprocmask(SIG_SETMASK, [], [pid 7265] <... futex resumed>) = 0 [pid 7266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7265] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7266] memfd_create("syzkaller", 0) = 3 [pid 7266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7264] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7262] <... close resumed>) = 0 [pid 7262] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7261] <... futex resumed>) = 0 [pid 7262] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7261] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7262] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7261] <... futex resumed>) = 0 [pid 7262] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7261] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7262] <... futex resumed>) = 0 [pid 7261] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7262] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7261] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7262] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7261] <... futex resumed>) = 0 [pid 7262] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7262] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7266] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7261] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7261] exit_group(0 [pid 7262] <... futex resumed>) = ? [pid 7261] <... exit_group resumed>) = ? [pid 7262] +++ exited with 0 +++ [pid 7261] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7261, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7267 attached , child_tidptr=0x55556c203690) = 7267 [pid 7267] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7267] setpgid(0, 0) = 0 [pid 7267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7267] write(3, "1000", 4) = 4 [pid 7267] close(3executing program ) = 0 [pid 7267] write(1, "executing program\n", 18) = 18 [pid 7267] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7267] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7267] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7267] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7267] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7267] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7267] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7268 attached => {parent_tid=[7268]}, 88) = 7268 [pid 7268] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7267] rt_sigprocmask(SIG_SETMASK, [], [pid 7268] <... rseq resumed>) = 0 [pid 7267] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7268] set_robust_list(0x7fb72497a9a0, 24 [pid 7267] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7268] <... set_robust_list resumed>) = 0 [pid 7267] <... futex resumed>) = 0 [pid 7268] rt_sigprocmask(SIG_SETMASK, [], [pid 7267] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7268] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7268] memfd_create("syzkaller", 0) = 3 [pid 7268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7264] <... write resumed>) = 16777216 [pid 7264] munmap(0x7fb71c400000, 138412032) = 0 [pid 7264] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7264] close(3 [pid 7268] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7266] <... write resumed>) = 16777216 [pid 7266] munmap(0x7fb71c400000, 138412032) = 0 [pid 7266] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7266] close(3 [pid 7264] <... close resumed>) = 0 [pid 7264] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7264] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7263] <... futex resumed>) = 0 [pid 7263] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7264] <... futex resumed>) = 0 [pid 7263] <... futex resumed>) = 1 [pid 7264] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7263] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7264] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7264] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7263] <... futex resumed>) = 0 [pid 7264] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7263] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7264] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7263] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7264] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7264] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7263] <... futex resumed>) = 0 [pid 7264] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7263] exit_group(0 [pid 7264] <... futex resumed>) = ? [pid 7263] <... exit_group resumed>) = ? [pid 7264] +++ exited with 0 +++ [pid 7263] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7263, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7269 attached , child_tidptr=0x55556c203690) = 7269 [pid 7269] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7269] setpgid(0, 0) = 0 [pid 7269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7269] write(3, "1000", 4) = 4 [pid 7269] close(3) = 0 executing program [pid 7269] write(1, "executing program\n", 18) = 18 [pid 7269] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7269] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7269] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7269] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7269] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7269] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7270 attached => {parent_tid=[7270]}, 88) = 7270 [pid 7270] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7269] rt_sigprocmask(SIG_SETMASK, [], [pid 7270] <... rseq resumed>) = 0 [pid 7269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7270] set_robust_list(0x7fb72497a9a0, 24 [pid 7269] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7270] <... set_robust_list resumed>) = 0 [pid 7269] <... futex resumed>) = 0 [pid 7270] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7269] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7270] memfd_create("syzkaller", 0) = 3 [pid 7270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7266] <... close resumed>) = 0 [pid 7268] <... write resumed>) = 16777216 [pid 7268] munmap(0x7fb71c400000, 138412032 [pid 7266] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7265] <... futex resumed>) = 0 [pid 7266] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7265] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7266] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7265] <... futex resumed>) = 0 [pid 7266] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7265] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7266] <... futex resumed>) = 0 [pid 7265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7266] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7265] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7266] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7265] <... futex resumed>) = 0 [pid 7266] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7265] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7266] <... futex resumed>) = 0 [pid 7265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7266] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7265] exit_group(0 [pid 7266] <... futex resumed>) = ? [pid 7265] <... exit_group resumed>) = ? [pid 7266] +++ exited with 0 +++ [pid 7265] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7265, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7271 attached , child_tidptr=0x55556c203690) = 7271 [pid 7268] <... munmap resumed>) = 0 [pid 7271] set_robust_list(0x55556c2036a0, 24 [pid 7270] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7268] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7271] <... set_robust_list resumed>) = 0 [pid 7271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7268] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7271] <... prctl resumed>) = 0 [pid 7268] close(3 [pid 7271] setpgid(0, 0executing program ) = 0 [pid 7271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7271] write(3, "1000", 4) = 4 [pid 7271] close(3) = 0 [pid 7271] write(1, "executing program\n", 18) = 18 [pid 7271] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7271] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7271] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7271] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7271] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7271] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7272 attached => {parent_tid=[7272]}, 88) = 7272 [pid 7271] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7271] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7271] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7272] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7272] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7272] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7272] memfd_create("syzkaller", 0) = 3 [pid 7272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7268] <... close resumed>) = 0 [pid 7268] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7267] <... futex resumed>) = 0 [pid 7268] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7267] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7268] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7267] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7268] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7267] <... futex resumed>) = 0 [pid 7268] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7267] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7268] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7267] <... futex resumed>) = 0 [pid 7268] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7267] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7268] <... futex resumed>) = 0 [pid 7267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7268] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7267] exit_group(0 [pid 7268] <... futex resumed>) = ? [pid 7267] <... exit_group resumed>) = ? [pid 7268] +++ exited with 0 +++ [pid 7267] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7267, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7273 attached , child_tidptr=0x55556c203690) = 7273 [pid 7273] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7273] setpgid(0, 0) = 0 [pid 7273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7273] write(3, "1000", 4) = 4 [pid 7273] close(3executing program ) = 0 [pid 7273] write(1, "executing program\n", 18) = 18 [pid 7273] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7273] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7273] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7273] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7273] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7273] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7273] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7274 attached [pid 7274] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7273] <... clone3 resumed> => {parent_tid=[7274]}, 88) = 7274 [pid 7274] <... rseq resumed>) = 0 [pid 7273] rt_sigprocmask(SIG_SETMASK, [], [pid 7274] set_robust_list(0x7fb72497a9a0, 24 [pid 7273] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7274] <... set_robust_list resumed>) = 0 [pid 7273] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7274] rt_sigprocmask(SIG_SETMASK, [], [pid 7273] <... futex resumed>) = 0 [pid 7274] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7273] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7274] memfd_create("syzkaller", 0) = 3 [pid 7274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7272] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7270] <... write resumed>) = 16777216 [pid 7270] munmap(0x7fb71c400000, 138412032) = 0 [pid 7270] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7270] close(3 [pid 7274] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7270] <... close resumed>) = 0 [pid 7270] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7269] <... futex resumed>) = 0 [pid 7270] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7269] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7270] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7269] <... futex resumed>) = 0 [pid 7270] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7269] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7270] <... futex resumed>) = 0 [pid 7269] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7270] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7269] <... futex resumed>) = 0 [pid 7270] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7269] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7270] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7270] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7269] exit_group(0 [pid 7270] <... futex resumed>) = ? [pid 7269] <... exit_group resumed>) = ? [pid 7270] +++ exited with 0 +++ [pid 7269] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7269, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7272] <... write resumed>) = 16777216 [pid 5869] <... restart_syscall resumed>) = 0 [pid 7272] munmap(0x7fb71c400000, 138412032 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7275 attached [pid 7275] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7275 [pid 7275] <... set_robust_list resumed>) = 0 [pid 7275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7275] setpgid(0, 0) = 0 [pid 7275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7272] <... munmap resumed>) = 0 [pid 7275] write(3, "1000", 4 [pid 7272] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7272] close(3 [pid 7275] <... write resumed>) = 4 [pid 7275] close(3) = 0 executing program [pid 7275] write(1, "executing program\n", 18) = 18 [pid 7275] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7275] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7275] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7275] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7275] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7275] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7275] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7276 attached [pid 7276] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7276] set_robust_list(0x7fb72497a9a0, 24 [pid 7275] <... clone3 resumed> => {parent_tid=[7276]}, 88) = 7276 [pid 7276] <... set_robust_list resumed>) = 0 [pid 7276] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7276] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7275] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7275] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7276] <... futex resumed>) = 0 [pid 7275] <... futex resumed>) = 1 [pid 7276] memfd_create("syzkaller", 0 [pid 7275] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7276] <... memfd_create resumed>) = 3 [pid 7276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7274] <... write resumed>) = 16777216 [pid 7274] munmap(0x7fb71c400000, 138412032) = 0 [pid 7274] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7274] close(3 [pid 7272] <... close resumed>) = 0 [pid 7272] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7271] <... futex resumed>) = 0 [pid 7272] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7271] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7272] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7271] <... futex resumed>) = 0 [pid 7272] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7271] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7272] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7272] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7271] <... futex resumed>) = 0 [pid 7272] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7271] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7272] <... futex resumed>) = 0 [pid 7271] <... futex resumed>) = 1 [pid 7272] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7271] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7272] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7272] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7271] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7272] <... futex resumed>) = 0 [pid 7272] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7271] exit_group(0 [pid 7272] <... futex resumed>) = ? [pid 7271] <... exit_group resumed>) = ? [pid 7272] +++ exited with 0 +++ [pid 7271] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7271, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7277 attached , child_tidptr=0x55556c203690) = 7277 [pid 7277] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7277] setpgid(0, 0) = 0 [pid 7277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7277] write(3, "1000", 4) = 4 [pid 7277] close(3) = 0 [pid 7276] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7277] write(1, "executing program\n", 18executing program ) = 18 [pid 7277] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7277] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7277] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7277] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7277] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7277] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7278 attached => {parent_tid=[7278]}, 88) = 7278 [pid 7277] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7277] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7277] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7274] <... close resumed>) = 0 [pid 7278] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7274] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7274] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7278] <... rseq resumed>) = 0 [pid 7273] <... futex resumed>) = 0 [pid 7278] set_robust_list(0x7fb72497a9a0, 24 [pid 7273] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7278] <... set_robust_list resumed>) = 0 [pid 7273] <... futex resumed>) = 1 [pid 7278] rt_sigprocmask(SIG_SETMASK, [], [pid 7274] <... futex resumed>) = 0 [pid 7273] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7278] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7274] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7278] memfd_create("syzkaller", 0 [pid 7274] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7274] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7273] <... futex resumed>) = 0 [pid 7274] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7273] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7278] <... memfd_create resumed>) = 3 [pid 7274] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7273] <... futex resumed>) = 0 [pid 7278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7274] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7273] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7278] <... mmap resumed>) = 0x7fb71c400000 [pid 7274] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7274] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7273] <... futex resumed>) = 0 [pid 7273] exit_group(0) = ? [pid 7274] +++ exited with 0 +++ [pid 7273] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7273, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7279 attached , child_tidptr=0x55556c203690) = 7279 [pid 7279] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7279] setpgid(0, 0) = 0 [pid 7279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7279] write(3, "1000", 4) = 4 [pid 7279] close(3executing program ) = 0 [pid 7279] write(1, "executing program\n", 18) = 18 [pid 7279] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7279] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7279] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7279] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7279] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7279] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7279] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7280 attached [pid 7280] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7279] <... clone3 resumed> => {parent_tid=[7280]}, 88) = 7280 [pid 7280] <... rseq resumed>) = 0 [pid 7279] rt_sigprocmask(SIG_SETMASK, [], [pid 7280] set_robust_list(0x7fb72497a9a0, 24 [pid 7279] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7280] <... set_robust_list resumed>) = 0 [pid 7279] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7280] rt_sigprocmask(SIG_SETMASK, [], [pid 7279] <... futex resumed>) = 0 [pid 7280] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7279] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7280] memfd_create("syzkaller", 0) = 3 [pid 7280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7278] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7280] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7276] <... write resumed>) = 16777216 [pid 7276] munmap(0x7fb71c400000, 138412032) = 0 [pid 7276] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7276] close(3 [pid 7280] <... write resumed>) = 16777216 [pid 7280] munmap(0x7fb71c400000, 138412032 [pid 7278] <... write resumed>) = 16777216 [pid 7280] <... munmap resumed>) = 0 [pid 7280] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7278] munmap(0x7fb71c400000, 138412032 [pid 7280] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7280] close(3 [pid 7278] <... munmap resumed>) = 0 [pid 7278] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7278] close(3 [pid 7276] <... close resumed>) = 0 [pid 7276] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7275] <... futex resumed>) = 0 [pid 7276] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7275] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7276] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7275] <... futex resumed>) = 0 [pid 7276] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7275] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7276] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7276] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7275] <... futex resumed>) = 0 [pid 7276] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7275] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7276] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7275] <... futex resumed>) = 0 [pid 7276] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7275] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7276] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7276] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7275] <... futex resumed>) = 0 [pid 7275] exit_group(0) = ? [pid 7276] +++ exited with 0 +++ [pid 7275] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7275, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=39 /* 0.39 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7281 attached , child_tidptr=0x55556c203690) = 7281 [pid 7281] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7281] setpgid(0, 0) = 0 [pid 7281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7281] write(3, "1000", 4) = 4 [pid 7281] close(3) = 0 [pid 7280] <... close resumed>) = 0 executing program [pid 7281] write(1, "executing program\n", 18 [pid 7280] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7281] <... write resumed>) = 18 [pid 7280] <... futex resumed>) = 1 [pid 7279] <... futex resumed>) = 0 [pid 7281] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7280] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7279] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7281] <... futex resumed>) = 0 [pid 7280] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7281] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7280] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7279] <... futex resumed>) = 0 [pid 7281] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7280] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7279] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7281] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7280] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7279] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7281] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7280] <... futex resumed>) = 0 [pid 7279] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7280] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7281] <... mmap resumed>) = 0x7fb72495a000 [pid 7280] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7279] <... futex resumed>) = 0 [pid 7281] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7280] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7279] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7281] <... mprotect resumed>) = 0 [pid 7280] <... futex resumed>) = 0 [pid 7279] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7281] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7280] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7279] exit_group(0 [pid 7281] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7281] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7280] <... futex resumed>) = ? [pid 7280] +++ exited with 0 +++ [pid 7279] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 7282 attached [pid 7282] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7281] <... clone3 resumed> => {parent_tid=[7282]}, 88) = 7282 [pid 7282] <... rseq resumed>) = 0 [pid 7282] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7281] rt_sigprocmask(SIG_SETMASK, [], [pid 7282] rt_sigprocmask(SIG_SETMASK, [], [pid 7281] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7282] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7281] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7281] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7282] memfd_create("syzkaller", 0) = 3 [pid 7282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7279] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7279, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7283 attached , child_tidptr=0x55556c203690) = 7283 [pid 7283] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7283] setpgid(0, 0) = 0 [pid 7283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 7283] write(3, "1000", 4) = 4 [pid 7283] close(3) = 0 [pid 7283] write(1, "executing program\n", 18) = 18 [pid 7283] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7283] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7283] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7283] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7283] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7283] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7284 attached => {parent_tid=[7284]}, 88) = 7284 [pid 7284] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7283] rt_sigprocmask(SIG_SETMASK, [], [pid 7284] <... rseq resumed>) = 0 [pid 7283] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7284] set_robust_list(0x7fb72497a9a0, 24 [pid 7283] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7284] <... set_robust_list resumed>) = 0 [pid 7283] <... futex resumed>) = 0 [pid 7284] rt_sigprocmask(SIG_SETMASK, [], [pid 7283] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7284] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7284] memfd_create("syzkaller", 0) = 3 [pid 7284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7278] <... close resumed>) = 0 [pid 7278] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7277] <... futex resumed>) = 0 [pid 7278] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7277] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7278] <... futex resumed>) = 0 [pid 7277] <... futex resumed>) = 1 [pid 7278] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7277] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7278] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7277] <... futex resumed>) = 0 [pid 7278] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7277] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7278] <... futex resumed>) = 0 [pid 7277] <... futex resumed>) = 1 [pid 7278] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7277] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7278] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7278] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7277] <... futex resumed>) = 0 [pid 7278] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7277] exit_group(0 [pid 7278] <... futex resumed>) = ? [pid 7277] <... exit_group resumed>) = ? [pid 7278] +++ exited with 0 +++ [pid 7277] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7277, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7285 [pid 7282] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 7285 attached [pid 7285] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7285] setpgid(0, 0) = 0 [pid 7285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7285] write(3, "1000", 4) = 4 [pid 7285] close(3) = 0 [pid 7285] write(1, "executing program\n", 18executing program ) = 18 [pid 7285] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7285] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7285] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7285] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7285] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7285] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7285] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7286 attached => {parent_tid=[7286]}, 88) = 7286 [pid 7284] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7286] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7285] rt_sigprocmask(SIG_SETMASK, [], [pid 7286] <... rseq resumed>) = 0 [pid 7286] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7285] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7286] rt_sigprocmask(SIG_SETMASK, [], [pid 7285] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7285] <... futex resumed>) = 0 [pid 7286] memfd_create("syzkaller", 0 [pid 7285] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7286] <... memfd_create resumed>) = 3 [pid 7286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7282] <... write resumed>) = 16777216 [pid 7282] munmap(0x7fb71c400000, 138412032) = 0 [pid 7282] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7286] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7282] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7282] close(3 [pid 7284] <... write resumed>) = 16777216 [pid 7284] munmap(0x7fb71c400000, 138412032) = 0 [pid 7284] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7284] close(3 [pid 7286] <... write resumed>) = 16777216 [pid 7286] munmap(0x7fb71c400000, 138412032 [pid 7282] <... close resumed>) = 0 [pid 7284] <... close resumed>) = 0 [pid 7282] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7281] <... futex resumed>) = 0 [pid 7282] <... futex resumed>) = 1 [pid 7281] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7282] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7281] <... futex resumed>) = 0 [pid 7284] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7281] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7284] <... futex resumed>) = 1 [pid 7283] <... futex resumed>) = 0 [pid 7282] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7284] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7283] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7282] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7284] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7283] <... futex resumed>) = 0 [pid 7284] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7283] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7282] <... futex resumed>) = 1 [pid 7281] <... futex resumed>) = 0 [pid 7284] <... futex resumed>) = 0 [pid 7283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7282] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7281] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7284] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7283] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7281] <... futex resumed>) = 0 [pid 7284] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7283] <... futex resumed>) = 0 [pid 7281] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7286] <... munmap resumed>) = 0 [pid 7284] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7283] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7282] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7286] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7284] <... futex resumed>) = 0 [pid 7283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7282] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7286] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7284] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7283] exit_group(0 [pid 7282] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7286] close(3 [pid 7284] <... futex resumed>) = ? [pid 7283] <... exit_group resumed>) = ? [pid 7284] +++ exited with 0 +++ [pid 7283] +++ exited with 0 +++ [pid 7282] <... futex resumed>) = 1 [pid 7281] <... futex resumed>) = 0 [pid 7282] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7283, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 7281] exit_group(0) = ? [pid 7282] <... futex resumed>) = ? [pid 7282] +++ exited with 0 +++ [pid 7281] +++ exited with 0 +++ [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7281, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7287 attached [pid 7287] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7287 [pid 5869] <... restart_syscall resumed>) = 0 [pid 7287] setpgid(0, 0) = 0 [pid 7287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7287] write(3, "1000", 4 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7287] <... write resumed>) = 4 ./strace-static-x86_64: Process 7288 attached [pid 7287] close(3executing program ) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7288 [pid 7287] write(1, "executing program\n", 18 [pid 7288] set_robust_list(0x55556c2036a0, 24 [pid 7287] <... write resumed>) = 18 [pid 7288] <... set_robust_list resumed>) = 0 [pid 7287] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7288] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7287] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7288] <... prctl resumed>) = 0 [pid 7287] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7287] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7288] setpgid(0, 0 [pid 7287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7288] <... setpgid resumed>) = 0 [pid 7287] <... mmap resumed>) = 0x7fb72495a000 [pid 7287] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7287] <... mprotect resumed>) = 0 [pid 7287] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7288] <... openat resumed>) = 3 [pid 7287] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7289 attached [pid 7288] write(3, "1000", 4) = 4 [pid 7288] close(3 [pid 7287] <... clone3 resumed> => {parent_tid=[7289]}, 88) = 7289 [pid 7288] <... close resumed>) = 0 [pid 7287] rt_sigprocmask(SIG_SETMASK, [], executing program [pid 7288] write(1, "executing program\n", 18 [pid 7287] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7289] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7288] <... write resumed>) = 18 [pid 7287] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7288] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7287] <... futex resumed>) = 0 [pid 7289] <... rseq resumed>) = 0 [pid 7288] <... futex resumed>) = 0 [pid 7287] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7289] set_robust_list(0x7fb72497a9a0, 24 [pid 7288] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7289] <... set_robust_list resumed>) = 0 [pid 7289] rt_sigprocmask(SIG_SETMASK, [], [pid 7288] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7288] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7289] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7288] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7289] memfd_create("syzkaller", 0 [pid 7288] <... mmap resumed>) = 0x7fb72495a000 [pid 7289] <... memfd_create resumed>) = 3 [pid 7288] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7288] <... mprotect resumed>) = 0 [pid 7289] <... mmap resumed>) = 0x7fb71c400000 [pid 7288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7290]}, 88) = 7290 [pid 7288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7288] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7288] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7290 attached [pid 7290] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7290] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7290] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7290] memfd_create("syzkaller", 0) = 3 [pid 7290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7286] <... close resumed>) = 0 [pid 7286] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7285] <... futex resumed>) = 0 [pid 7286] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7285] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7286] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7285] <... futex resumed>) = 0 [pid 7286] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7285] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7286] <... futex resumed>) = 0 [pid 7285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7286] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7285] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7285] <... futex resumed>) = 0 [pid 7286] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7285] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7286] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7286] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7285] <... futex resumed>) = 0 [pid 7286] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7285] exit_group(0) = ? [pid 7286] <... futex resumed>) = ? [pid 7286] +++ exited with 0 +++ [pid 7285] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7285, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=39 /* 0.39 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7291 ./strace-static-x86_64: Process 7291 attached [pid 7291] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7291] setpgid(0, 0) = 0 [pid 7291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7291] write(3, "1000", 4) = 4 [pid 7291] close(3executing program [pid 7289] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7291] <... close resumed>) = 0 [pid 7291] write(1, "executing program\n", 18) = 18 [pid 7291] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7291] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7291] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7291] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7291] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7291] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7292 attached [pid 7292] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7291] <... clone3 resumed> => {parent_tid=[7292]}, 88) = 7292 [pid 7291] rt_sigprocmask(SIG_SETMASK, [], [pid 7292] <... rseq resumed>) = 0 [pid 7291] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7292] set_robust_list(0x7fb72497a9a0, 24 [pid 7291] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7292] <... set_robust_list resumed>) = 0 [pid 7292] rt_sigprocmask(SIG_SETMASK, [], [pid 7291] <... futex resumed>) = 0 [pid 7292] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7291] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7292] memfd_create("syzkaller", 0) = 3 [pid 7292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7290] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7292] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7289] <... write resumed>) = 16777216 [pid 7289] munmap(0x7fb71c400000, 138412032) = 0 [pid 7289] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7289] close(3 [pid 7290] <... write resumed>) = 16777216 [pid 7290] munmap(0x7fb71c400000, 138412032 [pid 7292] <... write resumed>) = 16777216 [pid 7290] <... munmap resumed>) = 0 [pid 7292] munmap(0x7fb71c400000, 138412032 [pid 7290] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7290] close(3 [pid 7292] <... munmap resumed>) = 0 [pid 7292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7292] close(3 [pid 7289] <... close resumed>) = 0 [pid 7289] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7287] <... futex resumed>) = 0 [pid 7289] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7287] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7287] <... futex resumed>) = 0 [pid 7289] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7287] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7289] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7289] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7289] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7287] <... futex resumed>) = 0 [pid 7287] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7289] <... futex resumed>) = 0 [pid 7287] <... futex resumed>) = 1 [pid 7289] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7287] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7289] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7289] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7289] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7287] <... futex resumed>) = 0 [pid 7287] exit_group(0 [pid 7289] <... futex resumed>) = ? [pid 7287] <... exit_group resumed>) = ? [pid 7289] +++ exited with 0 +++ [pid 7287] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7287, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7293 ./strace-static-x86_64: Process 7293 attached [pid 7293] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 7293] setpgid(0, 0) = 0 [pid 7293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7293] write(3, "1000", 4) = 4 [pid 7293] close(3) = 0 [pid 7293] write(1, "executing program\n", 18) = 18 [pid 7293] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7293] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7293] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7293] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7293] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7293] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7294]}, 88) = 7294 ./strace-static-x86_64: Process 7294 attached [pid 7293] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7294] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7293] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7294] <... rseq resumed>) = 0 [pid 7294] set_robust_list(0x7fb72497a9a0, 24 [pid 7293] <... futex resumed>) = 0 [pid 7294] <... set_robust_list resumed>) = 0 [pid 7294] rt_sigprocmask(SIG_SETMASK, [], [pid 7293] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7294] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7294] memfd_create("syzkaller", 0) = 3 [pid 7294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7292] <... close resumed>) = 0 [pid 7290] <... close resumed>) = 0 [pid 7292] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7291] <... futex resumed>) = 0 [pid 7292] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7291] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7291] <... futex resumed>) = 0 [pid 7292] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7291] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7292] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7292] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7291] <... futex resumed>) = 0 [pid 7290] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7292] <... futex resumed>) = 1 [pid 7291] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7292] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7291] <... futex resumed>) = 0 [pid 7290] <... futex resumed>) = 1 [pid 7288] <... futex resumed>) = 0 [pid 7292] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7291] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7290] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7288] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7292] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7290] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7288] <... futex resumed>) = 0 [pid 7291] <... futex resumed>) = 0 [pid 7292] <... futex resumed>) = 1 [pid 7291] exit_group(0 [pid 7290] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7288] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7291] <... exit_group resumed>) = ? [pid 7290] <... futex resumed>) = 0 [pid 7288] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7292] +++ exited with 0 +++ [pid 7291] +++ exited with 0 +++ [pid 7290] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7291, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 7288] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7290] <... futex resumed>) = 0 [pid 7288] <... futex resumed>) = 1 [pid 7288] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7290] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7290] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7290] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7290] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7288] <... futex resumed>) = 0 [pid 7288] exit_group(0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7290] <... futex resumed>) = ? [pid 7288] <... exit_group resumed>) = ? [pid 7290] +++ exited with 0 +++ [pid 7288] +++ exited with 0 +++ [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7294] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 7295 attached [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7288, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7295] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7295] <... set_robust_list resumed>) = 0 [pid 7295] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7295 ./strace-static-x86_64: Process 7296 attached [pid 7295] <... prctl resumed>) = 0 [pid 7295] setpgid(0, 0 [pid 7296] set_robust_list(0x55556c2036a0, 24 [pid 7295] <... setpgid resumed>) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7296 [pid 7295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7296] <... set_robust_list resumed>) = 0 [pid 7295] <... openat resumed>) = 3 [pid 7296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7296] setpgid(0, 0) = 0 [pid 7295] write(3, "1000", 4 [pid 7296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7295] <... write resumed>) = 4 [pid 7295] close(3) = 0 [pid 7296] <... openat resumed>) = 3 [pid 7295] write(1, "executing program\n", 18executing program ) = 18 [pid 7295] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7296] write(3, "1000", 4) = 4 [pid 7295] <... futex resumed>) = 0 [pid 7296] close(3 [pid 7295] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7296] <... close resumed>) = 0 [pid 7295] <... rt_sigaction resumed>NULL, 8) = 0 executing program [pid 7296] write(1, "executing program\n", 18 [pid 7295] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7296] <... write resumed>) = 18 [pid 7295] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7296] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7295] <... mmap resumed>) = 0x7fb72495a000 [pid 7296] <... futex resumed>) = 0 [pid 7296] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7295] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7296] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7295] <... mprotect resumed>) = 0 [pid 7296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7295] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7296] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7295] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7296] <... mprotect resumed>) = 0 [pid 7295] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7297]}, 88) = 7297 [pid 7295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7295] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7295] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7298 attached ./strace-static-x86_64: Process 7297 attached [pid 7297] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7298] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7297] <... rseq resumed>) = 0 [pid 7298] <... rseq resumed>) = 0 [pid 7297] set_robust_list(0x7fb72497a9a0, 24 [pid 7298] set_robust_list(0x7fb72497a9a0, 24 [pid 7297] <... set_robust_list resumed>) = 0 [pid 7298] <... set_robust_list resumed>) = 0 [pid 7297] rt_sigprocmask(SIG_SETMASK, [], [pid 7296] <... clone3 resumed> => {parent_tid=[7298]}, 88) = 7298 [pid 7298] rt_sigprocmask(SIG_SETMASK, [], [pid 7297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7296] rt_sigprocmask(SIG_SETMASK, [], [pid 7298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7296] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7297] memfd_create("syzkaller", 0 [pid 7296] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7298] memfd_create("syzkaller", 0) = 3 [pid 7297] <... memfd_create resumed>) = 3 [pid 7298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7298] <... mmap resumed>) = 0x7fb71c400000 [pid 7297] <... mmap resumed>) = 0x7fb71c400000 [pid 7298] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7294] <... write resumed>) = 16777216 [pid 7294] munmap(0x7fb71c400000, 138412032 [pid 7297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7294] <... munmap resumed>) = 0 [pid 7294] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7294] close(3 [pid 7297] <... write resumed>) = 16777216 [pid 7297] munmap(0x7fb71c400000, 138412032 [pid 7298] <... write resumed>) = 16777216 [pid 7298] munmap(0x7fb71c400000, 138412032 [pid 7297] <... munmap resumed>) = 0 [pid 7294] <... close resumed>) = 0 [pid 7298] <... munmap resumed>) = 0 [pid 7297] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7294] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7298] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7297] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7294] <... futex resumed>) = 1 [pid 7293] <... futex resumed>) = 0 [pid 7298] close(3 [pid 7294] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7293] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7297] close(3 [pid 7294] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7293] <... futex resumed>) = 0 [pid 7293] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7294] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7293] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7294] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7293] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7294] <... futex resumed>) = 0 [pid 7293] <... futex resumed>) = 1 [pid 7294] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7293] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7294] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7294] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7293] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7294] <... futex resumed>) = 0 [pid 7294] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7293] exit_group(0 [pid 7294] <... futex resumed>) = ? [pid 7293] <... exit_group resumed>) = ? [pid 7294] +++ exited with 0 +++ [pid 7293] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7293, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7299 ./strace-static-x86_64: Process 7299 attached [pid 7299] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7299] setpgid(0, 0) = 0 [pid 7299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7299] write(3, "1000", 4) = 4 [pid 7299] close(3executing program ) = 0 [pid 7299] write(1, "executing program\n", 18) = 18 [pid 7299] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7299] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7299] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7299] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7299] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7300 attached => {parent_tid=[7300]}, 88) = 7300 [pid 7299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7299] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7299] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7300] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7300] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7300] memfd_create("syzkaller", 0) = 3 [pid 7300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7298] <... close resumed>) = 0 [pid 7298] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7298] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7296] <... futex resumed>) = 0 [pid 7296] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7298] <... futex resumed>) = 0 [pid 7298] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7298] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7296] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7298] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7296] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7296] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7298] <... futex resumed>) = 0 [pid 7296] <... futex resumed>) = 1 [pid 7298] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7296] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7298] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7298] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7296] <... futex resumed>) = 0 [pid 7296] exit_group(0) = ? [pid 7298] +++ exited with 0 +++ [pid 7296] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7296, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7301 attached [pid 7301] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7301 [pid 7301] <... set_robust_list resumed>) = 0 [pid 7301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7301] setpgid(0, 0) = 0 [pid 7301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7301] write(3, "1000", 4) = 4 [pid 7301] close(3executing program ) = 0 [pid 7301] write(1, "executing program\n", 18) = 18 [pid 7301] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7301] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7301] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7301] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7301] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7301] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7302]}, 88) = 7302 ./strace-static-x86_64: Process 7302 attached [pid 7301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7301] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7301] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7302] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7302] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7302] memfd_create("syzkaller", 0 [pid 7297] <... close resumed>) = 0 [pid 7302] <... memfd_create resumed>) = 3 [pid 7297] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7297] <... futex resumed>) = 1 [pid 7295] <... futex resumed>) = 0 [pid 7295] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7295] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7297] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7297] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7297] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7295] <... futex resumed>) = 0 [pid 7295] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7297] <... futex resumed>) = 0 [pid 7295] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7297] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7297] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7295] <... futex resumed>) = 0 [pid 7297] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7295] exit_group(0 [pid 7297] <... futex resumed>) = ? [pid 7295] <... exit_group resumed>) = ? [pid 7297] +++ exited with 0 +++ [pid 7300] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7295] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7295, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=30 /* 0.30 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7303 attached [pid 7303] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7303 [pid 7303] <... set_robust_list resumed>) = 0 [pid 7303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7303] setpgid(0, 0) = 0 [pid 7303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7303] write(3, "1000", 4) = 4 [pid 7303] close(3) = 0 executing program [pid 7303] write(1, "executing program\n", 18) = 18 [pid 7303] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7303] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7303] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7303] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7303] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7303] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7304 attached => {parent_tid=[7304]}, 88) = 7304 [pid 7304] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7303] rt_sigprocmask(SIG_SETMASK, [], [pid 7304] <... rseq resumed>) = 0 [pid 7303] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7304] set_robust_list(0x7fb72497a9a0, 24 [pid 7303] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7304] <... set_robust_list resumed>) = 0 [pid 7303] <... futex resumed>) = 0 [pid 7304] rt_sigprocmask(SIG_SETMASK, [], [pid 7303] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7304] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7304] memfd_create("syzkaller", 0) = 3 [pid 7304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7302] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7304] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7300] <... write resumed>) = 16777216 [pid 7300] munmap(0x7fb71c400000, 138412032) = 0 [pid 7300] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7300] close(3 [pid 7302] <... write resumed>) = 16777216 [pid 7302] munmap(0x7fb71c400000, 138412032) = 0 [pid 7302] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7302] close(3 [pid 7304] <... write resumed>) = 16777216 [pid 7304] munmap(0x7fb71c400000, 138412032 [pid 7300] <... close resumed>) = 0 [pid 7300] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7300] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7299] <... futex resumed>) = 0 [pid 7299] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7300] <... futex resumed>) = 0 [pid 7299] <... futex resumed>) = 1 [pid 7300] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7300] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7299] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7300] <... futex resumed>) = 0 [pid 7299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7300] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7299] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7300] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7299] <... futex resumed>) = 0 [pid 7300] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7299] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7300] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7299] exit_group(0) = ? [pid 7300] <... futex resumed>) = ? [pid 7300] +++ exited with 0 +++ [pid 7299] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7299, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7304] <... munmap resumed>) = 0 [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7304] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7304] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7304] close(3./strace-static-x86_64: Process 7305 attached [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7305 [pid 7305] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7302] <... close resumed>) = 0 [pid 7302] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7301] <... futex resumed>) = 0 [pid 7302] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7301] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7301] <... futex resumed>) = 0 [pid 7305] setpgid(0, 0 [pid 7301] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7305] <... setpgid resumed>) = 0 [pid 7302] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7302] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7302] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7305] <... openat resumed>) = 3 [pid 7302] <... futex resumed>) = 1 [pid 7301] <... futex resumed>) = 0 [pid 7301] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7301] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7305] write(3, "1000", 4) = 4 [pid 7305] close(3) = 0 executing program [pid 7305] write(1, "executing program\n", 18) = 18 [pid 7305] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7305] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7305] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7305] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7302] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7305] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7302] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7302] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7305] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7302] <... futex resumed>) = 1 [pid 7301] <... futex resumed>) = 0 [pid 7305] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7302] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7301] exit_group(0 [pid 7302] <... futex resumed>) = ? [pid 7301] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 7306 attached [pid 7302] +++ exited with 0 +++ [pid 7301] +++ exited with 0 +++ [pid 7306] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7305] <... clone3 resumed> => {parent_tid=[7306]}, 88) = 7306 [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7301, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 7305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7305] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7305] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7306] <... rseq resumed>) = 0 [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7306] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 7306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7306] memfd_create("syzkaller", 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7306] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 7307 attached [pid 7306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7307 [pid 7307] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7307] setpgid(0, 0) = 0 [pid 7307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7307] write(3, "1000", 4) = 4 [pid 7307] close(3) = 0 executing program [pid 7307] write(1, "executing program\n", 18) = 18 [pid 7307] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7307] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7307] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7307] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7307] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7307] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7308 attached [pid 7308] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7307] <... clone3 resumed> => {parent_tid=[7308]}, 88) = 7308 [pid 7308] <... rseq resumed>) = 0 [pid 7307] rt_sigprocmask(SIG_SETMASK, [], [pid 7308] set_robust_list(0x7fb72497a9a0, 24 [pid 7307] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7308] <... set_robust_list resumed>) = 0 [pid 7307] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7308] rt_sigprocmask(SIG_SETMASK, [], [pid 7307] <... futex resumed>) = 0 [pid 7308] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7307] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7308] memfd_create("syzkaller", 0) = 3 [pid 7308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7304] <... close resumed>) = 0 [pid 7304] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7303] <... futex resumed>) = 0 [pid 7304] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7303] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7303] <... futex resumed>) = 0 [pid 7304] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7303] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7304] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7304] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7303] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7304] <... futex resumed>) = 0 [pid 7303] <... futex resumed>) = 1 [pid 7304] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7303] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7304] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7304] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7303] exit_group(0 [pid 7304] <... futex resumed>) = ? [pid 7303] <... exit_group resumed>) = ? [pid 7304] +++ exited with 0 +++ [pid 7303] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7303, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7309 attached , child_tidptr=0x55556c203690) = 7309 [pid 7309] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7309] setpgid(0, 0) = 0 [pid 7309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7309] write(3, "1000", 4) = 4 executing program [pid 7309] close(3) = 0 [pid 7309] write(1, "executing program\n", 18) = 18 [pid 7309] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7309] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7309] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7309] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7309] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7309] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7309] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7310 attached [pid 7310] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7309] <... clone3 resumed> => {parent_tid=[7310]}, 88) = 7310 [pid 7310] set_robust_list(0x7fb72497a9a0, 24 [pid 7309] rt_sigprocmask(SIG_SETMASK, [], [pid 7310] <... set_robust_list resumed>) = 0 [pid 7309] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7310] rt_sigprocmask(SIG_SETMASK, [], [pid 7309] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7310] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7309] <... futex resumed>) = 0 [pid 7310] memfd_create("syzkaller", 0 [pid 7309] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7310] <... memfd_create resumed>) = 3 [pid 7310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7308] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7310] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7308] <... write resumed>) = 16777216 [pid 7308] munmap(0x7fb71c400000, 138412032 [pid 7306] <... write resumed>) = 16777216 [pid 7308] <... munmap resumed>) = 0 [pid 7308] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7306] munmap(0x7fb71c400000, 138412032 [pid 7308] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7308] close(3 [pid 7306] <... munmap resumed>) = 0 [pid 7306] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7306] close(3 [pid 7310] <... write resumed>) = 16777216 [pid 7310] munmap(0x7fb71c400000, 138412032) = 0 [pid 7310] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7310] close(3 [pid 7308] <... close resumed>) = 0 [pid 7308] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7307] <... futex resumed>) = 0 [pid 7307] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7307] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7308] <... futex resumed>) = 1 [pid 7308] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7308] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7307] <... futex resumed>) = 0 [pid 7307] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7307] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7308] <... futex resumed>) = 1 [pid 7308] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7308] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7307] <... futex resumed>) = 0 [pid 7307] exit_group(0) = ? [pid 7308] <... futex resumed>) = ? [pid 7308] +++ exited with 0 +++ [pid 7307] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7307, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7311 attached , child_tidptr=0x55556c203690) = 7311 [pid 7311] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7311] setpgid(0, 0) = 0 [pid 7311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7311] write(3, "1000", 4) = 4 [pid 7311] close(3executing program ) = 0 [pid 7311] write(1, "executing program\n", 18) = 18 [pid 7311] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7311] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7311] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7311] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7311] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7311] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7312]}, 88) = 7312 [pid 7311] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 7312 attached [pid 7311] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7312] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7312] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7311] <... futex resumed>) = 0 [pid 7311] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7306] <... close resumed>) = 0 [pid 7312] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7306] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7312] memfd_create("syzkaller", 0 [pid 7306] <... futex resumed>) = 1 [pid 7305] <... futex resumed>) = 0 [pid 7306] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7305] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7305] <... futex resumed>) = 0 [pid 7306] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7305] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7306] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7312] <... memfd_create resumed>) = 3 [pid 7312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7306] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7305] <... futex resumed>) = 0 [pid 7305] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7305] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7306] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7306] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7306] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7310] <... close resumed>) = 0 [pid 7305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7310] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7309] <... futex resumed>) = 0 [pid 7309] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7309] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7310] <... futex resumed>) = 1 [pid 7305] exit_group(0 [pid 7310] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7306] <... futex resumed>) = ? [pid 7305] <... exit_group resumed>) = ? [pid 7306] +++ exited with 0 +++ [pid 7310] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7305] +++ exited with 0 +++ [pid 7310] <... futex resumed>) = 1 [pid 7309] <... futex resumed>) = 0 [pid 7310] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7309] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7305, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=37 /* 0.37 s */} --- [pid 7310] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7309] <... futex resumed>) = 0 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7310] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7309] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7310] <... futex resumed>) = 0 [pid 7309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7310] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7309] exit_group(0 [pid 7310] <... futex resumed>) = ? [pid 7309] <... exit_group resumed>) = ? [pid 7310] +++ exited with 0 +++ [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7309] +++ exited with 0 +++ [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7313 attached [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7309, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7313 [pid 7313] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7313] <... set_robust_list resumed>) = 0 [pid 7313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7313] setpgid(0, 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7313] <... setpgid resumed>) = 0 [pid 7313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7313] <... openat resumed>) = 3 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7314 attached [pid 7313] write(3, "1000", 4) = 4 [pid 7313] close(3) = 0 [pid 7313] write(1, "executing program\n", 18executing program ) = 18 [pid 7314] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7313] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7313] <... futex resumed>) = 0 [pid 7314] setpgid(0, 0 [pid 7313] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7314 [pid 7314] <... setpgid resumed>) = 0 [pid 7313] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7313] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7314] <... openat resumed>) = 3 [pid 7313] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7314] write(3, "1000", 4 [pid 7313] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7314] <... write resumed>) = 4 [pid 7313] <... mmap resumed>) = 0x7fb72495a000 [pid 7314] close(3) = 0 [pid 7313] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITEexecuting program [pid 7314] write(1, "executing program\n", 18 [pid 7313] <... mprotect resumed>) = 0 [pid 7314] <... write resumed>) = 18 [pid 7314] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7314] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7313] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7314] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7314] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7313] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7314] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7313] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 7315 attached ) = 0x7fb72495a000 [pid 7313] <... clone3 resumed> => {parent_tid=[7315]}, 88) = 7315 [pid 7315] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7314] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7312] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7315] <... rseq resumed>) = 0 [pid 7314] <... mprotect resumed>) = 0 [pid 7313] rt_sigprocmask(SIG_SETMASK, [], [pid 7315] set_robust_list(0x7fb72497a9a0, 24 [pid 7314] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7313] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7315] <... set_robust_list resumed>) = 0 [pid 7313] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7315] rt_sigprocmask(SIG_SETMASK, [], [pid 7313] <... futex resumed>) = 0 [pid 7315] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7313] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7314] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7316 attached [pid 7316] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7315] memfd_create("syzkaller", 0 [pid 7314] <... clone3 resumed> => {parent_tid=[7316]}, 88) = 7316 [pid 7316] <... rseq resumed>) = 0 [pid 7314] rt_sigprocmask(SIG_SETMASK, [], [pid 7316] set_robust_list(0x7fb72497a9a0, 24 [pid 7314] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7316] <... set_robust_list resumed>) = 0 [pid 7314] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7316] rt_sigprocmask(SIG_SETMASK, [], [pid 7314] <... futex resumed>) = 0 [pid 7316] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7314] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7315] <... memfd_create resumed>) = 3 [pid 7316] memfd_create("syzkaller", 0 [pid 7315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7316] <... memfd_create resumed>) = 3 [pid 7316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7315] <... mmap resumed>) = 0x7fb71c400000 [pid 7316] <... mmap resumed>) = 0x7fb71c400000 [pid 7316] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7312] <... write resumed>) = 16777216 [pid 7312] munmap(0x7fb71c400000, 138412032) = 0 [pid 7312] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7312] close(3) = 0 [pid 7312] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7311] <... futex resumed>) = 0 [pid 7312] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7311] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7311] <... futex resumed>) = 0 [pid 7312] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7311] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7312] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7312] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7311] <... futex resumed>) = 0 [pid 7311] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7312] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7311] <... futex resumed>) = 0 [pid 7311] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7312] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7312] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7311] <... futex resumed>) = 0 [pid 7311] exit_group(0) = ? [pid 7312] +++ exited with 0 +++ [pid 7311] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7311, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7315] <... write resumed>) = 16777216 [pid 7315] munmap(0x7fb71c400000, 138412032 [pid 7316] <... write resumed>) = 16777216 [pid 5869] <... restart_syscall resumed>) = 0 [pid 7316] munmap(0x7fb71c400000, 138412032 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7317 attached [pid 7315] <... munmap resumed>) = 0 [pid 7317] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7317 [pid 7317] <... set_robust_list resumed>) = 0 [pid 7317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7317] setpgid(0, 0) = 0 [pid 7317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7316] <... munmap resumed>) = 0 [pid 7315] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7317] write(3, "1000", 4) = 4 [pid 7316] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7315] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7317] close(3executing program [pid 7315] close(3 [pid 7317] <... close resumed>) = 0 [pid 7316] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7317] write(1, "executing program\n", 18) = 18 [pid 7317] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7316] close(3 [pid 7317] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7317] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7317] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7317] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7317] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7318 attached => {parent_tid=[7318]}, 88) = 7318 [pid 7317] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7317] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7317] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7318] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7318] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7318] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7318] memfd_create("syzkaller", 0) = 3 [pid 7318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7316] <... close resumed>) = 0 [pid 7318] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7316] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7315] <... close resumed>) = 0 [pid 7316] <... futex resumed>) = 1 [pid 7315] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7314] <... futex resumed>) = 0 [pid 7316] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7315] <... futex resumed>) = 1 [pid 7314] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7313] <... futex resumed>) = 0 [pid 7316] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7315] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7314] <... futex resumed>) = 0 [pid 7313] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7316] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7315] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7314] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7313] <... futex resumed>) = 0 [pid 7316] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7315] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7313] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7316] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7315] <... futex resumed>) = 0 [pid 7316] <... futex resumed>) = 1 [pid 7314] <... futex resumed>) = 0 [pid 7313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7316] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7315] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7314] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7313] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7316] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7314] <... futex resumed>) = 0 [pid 7313] <... futex resumed>) = 0 [pid 7316] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7315] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7314] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7313] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7316] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7315] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7316] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7315] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7314] <... futex resumed>) = 0 [pid 7316] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7315] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7314] exit_group(0 [pid 7316] <... futex resumed>) = ? [pid 7315] <... futex resumed>) = 1 [pid 7314] <... exit_group resumed>) = ? [pid 7313] <... futex resumed>) = 0 [pid 7316] +++ exited with 0 +++ [pid 7314] +++ exited with 0 +++ [pid 7313] exit_group(0 [pid 7315] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7314, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7315] <... futex resumed>) = ? [pid 7313] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 7319 attached [pid 7315] +++ exited with 0 +++ [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7319 [pid 7319] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7313] +++ exited with 0 +++ [pid 7319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7319] setpgid(0, 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7313, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- [pid 7319] <... setpgid resumed>) = 0 [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5872] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7319] <... openat resumed>) = 3 ./strace-static-x86_64: Process 7320 attached [pid 7319] write(3, "1000", 4 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7320 [pid 7320] set_robust_list(0x55556c2036a0, 24 [pid 7319] <... write resumed>) = 4 [pid 7320] <... set_robust_list resumed>) = 0 [pid 7319] close(3) = 0 executing program [pid 7319] write(1, "executing program\n", 18 [pid 7320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7319] <... write resumed>) = 18 [pid 7320] setpgid(0, 0 [pid 7319] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7320] <... setpgid resumed>) = 0 [pid 7319] <... futex resumed>) = 0 [pid 7319] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7319] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7320] <... openat resumed>) = 3 [pid 7319] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7320] write(3, "1000", 4 [pid 7319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7320] <... write resumed>) = 4 [pid 7319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7320] close(3) = 0 [pid 7319] <... mmap resumed>) = 0x7fb72495a000 executing program [pid 7320] write(1, "executing program\n", 18 [pid 7319] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7320] <... write resumed>) = 18 [pid 7319] <... mprotect resumed>) = 0 [pid 7320] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7319] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7320] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7319] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7320] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7319] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7320] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 7321 attached NULL, 8) = 0 [pid 7320] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7319] <... clone3 resumed> => {parent_tid=[7321]}, 88) = 7321 [pid 7320] <... mmap resumed>) = 0x7fb72495a000 [pid 7319] rt_sigprocmask(SIG_SETMASK, [], [pid 7321] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7320] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7321] <... rseq resumed>) = 0 [pid 7320] <... mprotect resumed>) = 0 [pid 7319] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7321] set_robust_list(0x7fb72497a9a0, 24 [pid 7319] <... futex resumed>) = 0 [pid 7321] <... set_robust_list resumed>) = 0 [pid 7319] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7321] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7321] memfd_create("syzkaller", 0 [pid 7320] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7321] <... memfd_create resumed>) = 3 [pid 7320] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7322 attached [pid 7322] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7320] <... clone3 resumed> => {parent_tid=[7322]}, 88) = 7322 [pid 7322] <... rseq resumed>) = 0 [pid 7320] rt_sigprocmask(SIG_SETMASK, [], [pid 7322] set_robust_list(0x7fb72497a9a0, 24 [pid 7320] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7322] <... set_robust_list resumed>) = 0 [pid 7320] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7322] rt_sigprocmask(SIG_SETMASK, [], [pid 7320] <... futex resumed>) = 0 [pid 7322] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7320] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7322] memfd_create("syzkaller", 0 [pid 7321] <... mmap resumed>) = 0x7fb71c400000 [pid 7322] <... memfd_create resumed>) = 3 [pid 7322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7321] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7322] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7318] <... write resumed>) = 16777216 [pid 7318] munmap(0x7fb71c400000, 138412032) = 0 [pid 7318] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7318] close(3 [pid 7322] <... write resumed>) = 16777216 [pid 7322] munmap(0x7fb71c400000, 138412032 [pid 7321] <... write resumed>) = 16777216 [pid 7322] <... munmap resumed>) = 0 [pid 7321] munmap(0x7fb71c400000, 138412032 [pid 7322] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7322] close(3 [pid 7321] <... munmap resumed>) = 0 [pid 7321] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7318] <... close resumed>) = 0 [pid 7321] close(3 [pid 7318] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7317] <... futex resumed>) = 0 [pid 7317] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7317] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7318] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7318] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7317] <... futex resumed>) = 0 [pid 7317] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7317] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7318] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7318] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7317] <... futex resumed>) = 0 [pid 7317] exit_group(0) = ? [pid 7318] +++ exited with 0 +++ [pid 7317] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7317, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7323 attached , child_tidptr=0x55556c203690) = 7323 [pid 7323] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7323] setpgid(0, 0) = 0 [pid 7323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7323] write(3, "1000", 4) = 4 [pid 7323] close(3executing program ) = 0 [pid 7323] write(1, "executing program\n", 18) = 18 [pid 7323] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7323] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7323] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7323] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7323] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7323] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7324 attached [pid 7324] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7323] <... clone3 resumed> => {parent_tid=[7324]}, 88) = 7324 [pid 7323] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7323] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7323] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7324] <... rseq resumed>) = 0 [pid 7324] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7324] memfd_create("syzkaller", 0) = 3 [pid 7324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7322] <... close resumed>) = 0 [pid 7322] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7320] <... futex resumed>) = 0 [pid 7322] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 7320] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7322] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7320] <... futex resumed>) = 0 [pid 7322] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7320] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7322] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7322] <... futex resumed>) = 0 [pid 7320] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7322] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7320] <... futex resumed>) = 0 [pid 7322] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7320] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7322] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7322] <... futex resumed>) = 0 [pid 7322] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7320] exit_group(0 [pid 7322] <... futex resumed>) = ? [pid 7320] <... exit_group resumed>) = ? [pid 7322] +++ exited with 0 +++ [pid 7320] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7320, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7325 attached , child_tidptr=0x55556c203690) = 7325 [pid 7325] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7325] setpgid(0, 0) = 0 [pid 7325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7325] write(3, "1000", 4executing program ) = 4 [pid 7325] close(3) = 0 [pid 7325] write(1, "executing program\n", 18) = 18 [pid 7325] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7325] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7325] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7325] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7325] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7325] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7326 attached => {parent_tid=[7326]}, 88) = 7326 [pid 7326] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7325] rt_sigprocmask(SIG_SETMASK, [], [pid 7326] <... rseq resumed>) = 0 [pid 7325] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7326] set_robust_list(0x7fb72497a9a0, 24 [pid 7325] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7326] <... set_robust_list resumed>) = 0 [pid 7325] <... futex resumed>) = 0 [pid 7325] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7326] memfd_create("syzkaller", 0) = 3 [pid 7326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7321] <... close resumed>) = 0 [pid 7321] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7319] <... futex resumed>) = 0 [pid 7321] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7319] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7321] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7319] <... futex resumed>) = 0 [pid 7321] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7319] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7321] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7321] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7319] <... futex resumed>) = 0 [pid 7321] <... futex resumed>) = 1 [pid 7319] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7321] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7319] <... futex resumed>) = 0 [pid 7321] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7319] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7321] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7319] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7321] <... futex resumed>) = 0 [pid 7319] exit_group(0) = ? [pid 7321] +++ exited with 0 +++ [pid 7319] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7319, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=37 /* 0.37 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7327 attached , child_tidptr=0x55556c203690) = 7327 [pid 7327] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7327] setpgid(0, 0) = 0 [pid 7327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7327] write(3, "1000", 4) = 4 [pid 7327] close(3) = 0 [pid 7327] write(1, "executing program\n", 18executing program ) = 18 [pid 7327] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7327] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7327] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7327] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7327] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7327] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7327] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7328 attached => {parent_tid=[7328]}, 88) = 7328 [pid 7328] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7327] rt_sigprocmask(SIG_SETMASK, [], [pid 7328] <... rseq resumed>) = 0 [pid 7327] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7328] set_robust_list(0x7fb72497a9a0, 24 [pid 7327] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7328] <... set_robust_list resumed>) = 0 [pid 7327] <... futex resumed>) = 0 [pid 7328] rt_sigprocmask(SIG_SETMASK, [], [pid 7327] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7328] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7328] memfd_create("syzkaller", 0) = 3 [pid 7324] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7328] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7326] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7328] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7324] <... write resumed>) = 16777216 [pid 7324] munmap(0x7fb71c400000, 138412032) = 0 [pid 7324] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7324] close(3 [pid 7328] <... write resumed>) = 16777216 [pid 7328] munmap(0x7fb71c400000, 138412032) = 0 [pid 7328] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7328] close(3 [pid 7326] <... write resumed>) = 16777216 [pid 7326] munmap(0x7fb71c400000, 138412032) = 0 [pid 7326] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7326] close(3 [pid 7324] <... close resumed>) = 0 [pid 7324] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7323] <... futex resumed>) = 0 [pid 7324] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7323] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7324] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7323] <... futex resumed>) = 0 [pid 7324] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7323] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7324] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7324] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7323] <... futex resumed>) = 0 [pid 7324] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7323] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7324] <... futex resumed>) = 0 [pid 7323] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7324] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7324] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7323] <... futex resumed>) = 0 [pid 7324] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7323] exit_group(0 [pid 7324] <... futex resumed>) = ? [pid 7323] <... exit_group resumed>) = ? [pid 7324] +++ exited with 0 +++ [pid 7323] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7323, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...> [pid 7328] <... close resumed>) = 0 [pid 5869] <... restart_syscall resumed>) = 0 [pid 7328] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7327] <... futex resumed>) = 0 [pid 7328] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7327] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7328] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7327] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7328] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7328] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7328] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7327] <... futex resumed>) = 0 [pid 7327] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7327] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7328] <... futex resumed>) = 1 [pid 7328] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7329 attached [pid 7328] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7328] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7327] <... futex resumed>) = 0 [pid 7328] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7327] exit_group(0) = ? [pid 7328] <... futex resumed>) = ? [pid 7329] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7329 [pid 7329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7329] setpgid(0, 0) = 0 [pid 7329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7329] write(3, "1000", 4) = 4 [pid 7329] close(3) = 0 [pid 7328] +++ exited with 0 +++ [pid 7327] +++ exited with 0 +++ [pid 7329] write(1, "executing program\n", 18 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7327, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=34 /* 0.34 s */} --- executing program [pid 7329] <... write resumed>) = 18 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7329] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7329] <... futex resumed>) = 0 [pid 7329] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7329] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7329] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7329] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7329] <... mmap resumed>) = 0x7fb72495a000 [pid 7329] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 7330 attached ) = 0 [pid 7330] set_robust_list(0x55556c2036a0, 24 [pid 7329] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7330] <... set_robust_list resumed>) = 0 [pid 7330] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7329] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7329] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7330] <... prctl resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7330 ./strace-static-x86_64: Process 7331 attached [pid 7330] setpgid(0, 0 [pid 7329] <... clone3 resumed> => {parent_tid=[7331]}, 88) = 7331 [pid 7331] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7330] <... setpgid resumed>) = 0 [pid 7329] rt_sigprocmask(SIG_SETMASK, [], [pid 7331] <... rseq resumed>) = 0 [pid 7330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7331] set_robust_list(0x7fb72497a9a0, 24 [pid 7329] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7331] <... set_robust_list resumed>) = 0 [pid 7329] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7331] rt_sigprocmask(SIG_SETMASK, [], [pid 7329] <... futex resumed>) = 0 [pid 7331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7329] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7331] memfd_create("syzkaller", 0 [pid 7330] <... openat resumed>) = 3 [pid 7330] write(3, "1000", 4) = 4 [pid 7330] close(3) = 0 [pid 7330] write(1, "executing program\n", 18executing program ) = 18 [pid 7330] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7330] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7331] <... memfd_create resumed>) = 3 [pid 7331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7330] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7326] <... close resumed>) = 0 [pid 7330] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7331] <... mmap resumed>) = 0x7fb71c400000 [pid 7330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7326] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7326] <... futex resumed>) = 1 [pid 7325] <... futex resumed>) = 0 [pid 7330] <... mmap resumed>) = 0x7fb72495a000 [pid 7326] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7325] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7330] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7326] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7325] <... futex resumed>) = 0 [pid 7330] <... mprotect resumed>) = 0 [pid 7326] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7325] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7330] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7326] <... futex resumed>) = 0 [pid 7325] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7325] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7325] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7326] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7330] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7326] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7326] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7325] <... futex resumed>) = 0 [pid 7325] exit_group(0) = ? [pid 7326] <... futex resumed>) = ? ./strace-static-x86_64: Process 7332 attached [pid 7330] <... clone3 resumed> => {parent_tid=[7332]}, 88) = 7332 [pid 7332] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7330] rt_sigprocmask(SIG_SETMASK, [], [pid 7326] +++ exited with 0 +++ [pid 7325] +++ exited with 0 +++ [pid 7332] set_robust_list(0x7fb72497a9a0, 24 [pid 7330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7332] <... set_robust_list resumed>) = 0 [pid 7330] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7332] rt_sigprocmask(SIG_SETMASK, [], [pid 7330] <... futex resumed>) = 0 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7325, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 7332] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7330] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7332] memfd_create("syzkaller", 0 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7332] <... memfd_create resumed>) = 3 [pid 7332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7333 ./strace-static-x86_64: Process 7333 attached [pid 7333] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7333] setpgid(0, 0) = 0 [pid 7333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 7333] write(3, "1000", 4) = 4 [pid 7333] close(3) = 0 [pid 7333] write(1, "executing program\n", 18) = 18 [pid 7333] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7333] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7333] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7333] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7333] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7333] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7334 attached => {parent_tid=[7334]}, 88) = 7334 [pid 7333] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7333] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7333] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7334] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7334] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7334] memfd_create("syzkaller", 0) = 3 [pid 7334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7334] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7332] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7331] <... write resumed>) = 16777216 [pid 7331] munmap(0x7fb71c400000, 138412032 [pid 7332] <... write resumed>) = 16777216 [pid 7331] <... munmap resumed>) = 0 [pid 7332] munmap(0x7fb71c400000, 138412032 [pid 7331] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7331] close(3 [pid 7332] <... munmap resumed>) = 0 [pid 7332] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7332] close(3 [pid 7334] <... write resumed>) = 16777216 [pid 7334] munmap(0x7fb71c400000, 138412032) = 0 [pid 7334] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7334] close(3 [pid 7332] <... close resumed>) = 0 [pid 7332] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7332] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7330] <... futex resumed>) = 0 [pid 7330] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7332] <... futex resumed>) = 0 [pid 7330] <... futex resumed>) = 1 [pid 7332] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7330] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7332] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7332] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7330] <... futex resumed>) = 0 [pid 7330] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7330] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7332] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7332] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7330] <... futex resumed>) = 0 [pid 7332] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7330] exit_group(0) = ? [pid 7332] <... futex resumed>) = ? [pid 7332] +++ exited with 0 +++ [pid 7330] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7330, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7335 ./strace-static-x86_64: Process 7335 attached [pid 7335] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7331] <... close resumed>) = 0 [pid 7331] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7329] <... futex resumed>) = 0 [pid 7335] setpgid(0, 0 [pid 7331] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7329] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7329] <... futex resumed>) = 0 [pid 7331] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7329] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7335] <... setpgid resumed>) = 0 [pid 7331] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7331] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7329] <... futex resumed>) = 0 [pid 7335] <... openat resumed>) = 3 [pid 7335] write(3, "1000", 4) = 4 [pid 7335] close(3) = 0 executing program [pid 7335] write(1, "executing program\n", 18) = 18 [pid 7335] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7335] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7335] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7331] <... futex resumed>) = 1 [pid 7329] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7331] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7329] <... futex resumed>) = 0 [pid 7335] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7331] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7329] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7335] <... mprotect resumed>) = 0 [pid 7331] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7329] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7331] <... futex resumed>) = 0 [pid 7335] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7331] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7329] exit_group(0 [pid 7331] <... futex resumed>) = ? [pid 7329] <... exit_group resumed>) = ? [pid 7335] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7331] +++ exited with 0 +++ [pid 7335] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7336 attached => {parent_tid=[7336]}, 88) = 7336 [pid 7336] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7335] rt_sigprocmask(SIG_SETMASK, [], [pid 7336] <... rseq resumed>) = 0 [pid 7335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7336] set_robust_list(0x7fb72497a9a0, 24 [pid 7335] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7336] <... set_robust_list resumed>) = 0 [pid 7336] rt_sigprocmask(SIG_SETMASK, [], [pid 7335] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7336] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7336] memfd_create("syzkaller", 0 [pid 7329] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7329, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 7336] <... memfd_create resumed>) = 3 [pid 7336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7336] <... mmap resumed>) = 0x7fb71c400000 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7337 attached [pid 7334] <... close resumed>) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7337 [pid 7337] set_robust_list(0x55556c2036a0, 24 [pid 7334] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7337] <... set_robust_list resumed>) = 0 [pid 7334] <... futex resumed>) = 1 [pid 7333] <... futex resumed>) = 0 [pid 7337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7334] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7333] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7337] <... prctl resumed>) = 0 [pid 7334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7333] <... futex resumed>) = 0 [pid 7337] setpgid(0, 0 [pid 7334] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7333] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7334] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7337] <... setpgid resumed>) = 0 [pid 7334] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7334] <... futex resumed>) = 1 [pid 7333] <... futex resumed>) = 0 [pid 7333] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7333] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7334] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7337] <... openat resumed>) = 3 [pid 7334] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7334] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7337] write(3, "1000", 4 [pid 7333] <... futex resumed>) = 0 [pid 7334] <... futex resumed>) = 1 [pid 7337] <... write resumed>) = 4 [pid 7334] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7333] exit_group(0 [pid 7337] close(3 [pid 7334] <... futex resumed>) = ? [pid 7333] <... exit_group resumed>) = ? [pid 7337] <... close resumed>) = 0 [pid 7334] +++ exited with 0 +++ [pid 7337] write(1, "executing program\n", 18executing program [pid 7333] +++ exited with 0 +++ [pid 7337] <... write resumed>) = 18 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7333, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...> [pid 7337] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... restart_syscall resumed>) = 0 [pid 7337] <... futex resumed>) = 0 [pid 7337] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7337] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7337] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7338 attached [pid 7337] <... mprotect resumed>) = 0 [pid 7337] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7338] set_robust_list(0x55556c2036a0, 24 [pid 7337] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7337] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7338] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 7339 attached [pid 7338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7337] <... clone3 resumed> => {parent_tid=[7339]}, 88) = 7339 [pid 7339] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7338] <... prctl resumed>) = 0 [pid 7337] rt_sigprocmask(SIG_SETMASK, [], [pid 7339] <... rseq resumed>) = 0 [pid 7338] setpgid(0, 0 [pid 7337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7338 [pid 7338] <... setpgid resumed>) = 0 [pid 7337] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7337] <... futex resumed>) = 0 [pid 7337] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7338] <... openat resumed>) = 3 [pid 7339] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7339] rt_sigprocmask(SIG_SETMASK, [], [pid 7338] write(3, "1000", 4 [pid 7339] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7338] <... write resumed>) = 4 [pid 7338] close(3 [pid 7339] memfd_create("syzkaller", 0 [pid 7338] <... close resumed>) = 0 [pid 7339] <... memfd_create resumed>) = 3 [pid 7339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0executing program [pid 7338] write(1, "executing program\n", 18 [pid 7339] <... mmap resumed>) = 0x7fb71c400000 [pid 7338] <... write resumed>) = 18 [pid 7338] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7338] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7338] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7338] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7338] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7340 attached => {parent_tid=[7340]}, 88) = 7340 [pid 7338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7338] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7338] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7340] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7340] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7340] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7340] memfd_create("syzkaller", 0) = 3 [pid 7340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7336] <... write resumed>) = 16777216 [pid 7336] munmap(0x7fb71c400000, 138412032 [pid 7340] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7336] <... munmap resumed>) = 0 [pid 7336] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7336] close(3 [pid 7339] <... write resumed>) = 16777216 [pid 7339] munmap(0x7fb71c400000, 138412032) = 0 [pid 7339] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7339] close(3 [pid 7336] <... close resumed>) = 0 [pid 7336] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7335] <... futex resumed>) = 0 [pid 7336] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7335] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7335] <... futex resumed>) = 0 [pid 7336] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7335] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7336] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7336] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7335] <... futex resumed>) = 0 [pid 7336] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7335] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7335] <... futex resumed>) = 0 [pid 7336] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7335] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7336] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7336] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7335] <... futex resumed>) = 0 [pid 7336] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7335] exit_group(0 [pid 7336] <... futex resumed>) = ? [pid 7335] <... exit_group resumed>) = ? [pid 7336] +++ exited with 0 +++ [pid 7335] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7335, si_uid=0, si_status=0, si_utime=0, si_stime=36 /* 0.36 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7341 attached , child_tidptr=0x55556c203690) = 7341 [pid 7341] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7341] setpgid(0, 0) = 0 [pid 7341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7341] write(3, "1000", 4) = 4 [pid 7341] close(3) = 0 executing program [pid 7341] write(1, "executing program\n", 18) = 18 [pid 7341] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7341] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7341] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7341] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7341] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7341] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7342 attached [pid 7342] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7341] <... clone3 resumed> => {parent_tid=[7342]}, 88) = 7342 [pid 7342] <... rseq resumed>) = 0 [pid 7341] rt_sigprocmask(SIG_SETMASK, [], [pid 7342] set_robust_list(0x7fb72497a9a0, 24 [pid 7341] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7342] <... set_robust_list resumed>) = 0 [pid 7341] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7342] rt_sigprocmask(SIG_SETMASK, [], [pid 7341] <... futex resumed>) = 0 [pid 7342] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7341] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7342] memfd_create("syzkaller", 0) = 3 [pid 7342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7340] <... write resumed>) = 16777216 [pid 7340] munmap(0x7fb71c400000, 138412032) = 0 [pid 7340] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7339] <... close resumed>) = 0 [pid 7340] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7339] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7340] close(3 [pid 7339] <... futex resumed>) = 1 [pid 7337] <... futex resumed>) = 0 [pid 7337] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7339] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7337] <... futex resumed>) = 0 [pid 7339] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7337] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7339] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7337] <... futex resumed>) = 0 [pid 7339] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7337] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7339] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7337] <... futex resumed>) = 0 [pid 7339] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7337] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7339] <... futex resumed>) = 0 [pid 7337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7339] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7337] exit_group(0 [pid 7339] <... futex resumed>) = ? [pid 7337] <... exit_group resumed>) = ? [pid 7339] +++ exited with 0 +++ [pid 7337] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7337, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7343 attached [pid 7342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7343 [pid 7343] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7343] setpgid(0, 0) = 0 [pid 7343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7343] write(3, "1000", 4) = 4 executing program [pid 7343] close(3) = 0 [pid 7343] write(1, "executing program\n", 18) = 18 [pid 7343] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7343] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7343] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7343] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7343] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7343] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7344 attached [pid 7344] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7343] <... clone3 resumed> => {parent_tid=[7344]}, 88) = 7344 [pid 7344] <... rseq resumed>) = 0 [pid 7344] set_robust_list(0x7fb72497a9a0, 24 [pid 7343] rt_sigprocmask(SIG_SETMASK, [], [pid 7344] <... set_robust_list resumed>) = 0 [pid 7343] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7344] rt_sigprocmask(SIG_SETMASK, [], [pid 7343] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7344] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7343] <... futex resumed>) = 0 [pid 7343] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7344] memfd_create("syzkaller", 0) = 3 [pid 7344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7344] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7340] <... close resumed>) = 0 [pid 7340] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7340] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7338] <... futex resumed>) = 0 [pid 7338] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7340] <... futex resumed>) = 0 [pid 7338] <... futex resumed>) = 1 [pid 7340] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7338] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7340] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7340] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7338] <... futex resumed>) = 0 [pid 7340] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7338] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7340] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7338] <... futex resumed>) = 0 [pid 7340] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7338] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7340] <... futex resumed>) = 0 [pid 7338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7340] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7338] exit_group(0 [pid 7340] <... futex resumed>) = ? [pid 7338] <... exit_group resumed>) = ? [pid 7340] +++ exited with 0 +++ [pid 7338] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7338, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=33 /* 0.33 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7345 attached , child_tidptr=0x55556c203690) = 7345 [pid 7345] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7345] setpgid(0, 0) = 0 [pid 7342] <... write resumed>) = 16777216 [pid 7345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7342] munmap(0x7fb71c400000, 138412032 [pid 7345] write(3, "1000", 4) = 4 [pid 7345] close(3executing program ) = 0 [pid 7345] write(1, "executing program\n", 18) = 18 [pid 7345] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7345] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7345] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7345] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7345] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7345] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7346 attached => {parent_tid=[7346]}, 88) = 7346 [pid 7345] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7345] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7345] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7346] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7346] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7346] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7346] memfd_create("syzkaller", 0) = 3 [pid 7346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7342] <... munmap resumed>) = 0 [pid 7342] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7342] close(3 [pid 7346] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7342] <... close resumed>) = 0 [pid 7342] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7344] <... write resumed>) = 16777216 [pid 7341] <... futex resumed>) = 0 [pid 7342] <... futex resumed>) = 1 [pid 7341] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7344] munmap(0x7fb71c400000, 138412032 [pid 7342] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7341] <... futex resumed>) = 0 [pid 7342] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7341] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7342] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7341] <... futex resumed>) = 0 [pid 7342] <... futex resumed>) = 1 [pid 7341] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7342] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7341] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7342] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7342] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7341] <... futex resumed>) = 0 [pid 7342] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7341] exit_group(0 [pid 7342] <... futex resumed>) = ? [pid 7341] <... exit_group resumed>) = ? [pid 7342] +++ exited with 0 +++ [pid 7341] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7341, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=30 /* 0.30 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7347 attached , child_tidptr=0x55556c203690) = 7347 [pid 7344] <... munmap resumed>) = 0 [pid 7347] set_robust_list(0x55556c2036a0, 24 [pid 7344] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7347] <... set_robust_list resumed>) = 0 [pid 7344] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7347] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7344] close(3 [pid 7347] <... prctl resumed>) = 0 [pid 7347] setpgid(0, 0) = 0 [pid 7347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7347] write(3, "1000", 4) = 4 [pid 7347] close(3executing program ) = 0 [pid 7347] write(1, "executing program\n", 18) = 18 [pid 7347] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7347] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7347] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7347] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7347] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7347] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7347] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7348]}, 88) = 7348 [pid 7347] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 7348 attached NULL, 8) = 0 [pid 7348] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7348] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7348] rt_sigprocmask(SIG_SETMASK, [], [pid 7347] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7348] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7347] <... futex resumed>) = 0 [pid 7347] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7348] memfd_create("syzkaller", 0) = 3 [pid 7348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7346] <... write resumed>) = 16777216 [pid 7346] munmap(0x7fb71c400000, 138412032) = 0 [pid 7346] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7346] close(3 [pid 7344] <... close resumed>) = 0 [pid 7348] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7344] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7343] <... futex resumed>) = 0 [pid 7343] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7344] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7343] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7344] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7344] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7343] <... futex resumed>) = 0 [pid 7344] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7343] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7344] <... futex resumed>) = 0 [pid 7343] <... futex resumed>) = 1 [pid 7343] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7344] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7344] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7343] <... futex resumed>) = 0 [pid 7344] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7343] exit_group(0 [pid 7344] <... futex resumed>) = ? [pid 7343] <... exit_group resumed>) = ? [pid 7344] +++ exited with 0 +++ [pid 7343] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7343, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=37 /* 0.37 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7349 attached [pid 7349] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7349] setpgid(0, 0) = 0 [pid 7349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7349] write(3, "1000", 4) = 4 [pid 7349] close(3) = 0 executing program [pid 7349] write(1, "executing program\n", 18) = 18 [pid 7349] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7349] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7349] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7349] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7349] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7349] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7350]}, 88) = 7350 ./strace-static-x86_64: Process 7350 attached [pid 7349] rt_sigprocmask(SIG_SETMASK, [], [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7349 [pid 7349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7349] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7350] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7349] <... futex resumed>) = 0 [pid 7350] <... rseq resumed>) = 0 [pid 7349] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7350] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7350] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7350] memfd_create("syzkaller", 0) = 3 [pid 7350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7350] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7346] <... close resumed>) = 0 [pid 7346] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7345] <... futex resumed>) = 0 [pid 7346] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7345] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7346] <... futex resumed>) = 0 [pid 7345] <... futex resumed>) = 1 [pid 7345] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7346] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7346] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7345] <... futex resumed>) = 0 [pid 7346] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7345] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7346] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7345] <... futex resumed>) = 0 [pid 7346] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7345] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7346] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7346] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7345] <... futex resumed>) = 0 [pid 7346] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7345] exit_group(0) = ? [pid 7346] <... futex resumed>) = ? [pid 7346] +++ exited with 0 +++ [pid 7345] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7345, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=36 /* 0.36 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7351 ./strace-static-x86_64: Process 7351 attached [pid 7351] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7348] <... write resumed>) = 16777216 [pid 7351] <... prctl resumed>) = 0 [pid 7351] setpgid(0, 0 [pid 7348] munmap(0x7fb71c400000, 138412032 [pid 7351] <... setpgid resumed>) = 0 [pid 7351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7351] write(3, "1000", 4) = 4 [pid 7351] close(3) = 0 [pid 7351] write(1, "executing program\n", 18executing program ) = 18 [pid 7351] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7351] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7351] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7351] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7348] <... munmap resumed>) = 0 [pid 7351] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7348] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7351] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7348] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7351] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7352 attached [pid 7348] close(3 [pid 7352] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7351] <... clone3 resumed> => {parent_tid=[7352]}, 88) = 7352 [pid 7352] <... rseq resumed>) = 0 [pid 7351] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7351] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7352] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7351] <... futex resumed>) = 0 [pid 7352] rt_sigprocmask(SIG_SETMASK, [], [pid 7351] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7352] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7352] memfd_create("syzkaller", 0) = 3 [pid 7352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7350] <... write resumed>) = 16777216 [pid 7350] munmap(0x7fb71c400000, 138412032) = 0 [pid 7350] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7350] close(3 [pid 7352] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7348] <... close resumed>) = 0 [pid 7348] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7347] <... futex resumed>) = 0 [pid 7348] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7347] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7348] <... futex resumed>) = 0 [pid 7347] <... futex resumed>) = 1 [pid 7348] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7347] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7348] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7347] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7347] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7348] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7347] <... futex resumed>) = 0 [pid 7348] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7347] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7348] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7347] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7348] <... futex resumed>) = 0 [pid 7347] exit_group(0 [pid 7348] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 7347] <... exit_group resumed>) = ? [pid 7348] +++ exited with 0 +++ [pid 7347] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7347, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7353 attached , child_tidptr=0x55556c203690) = 7353 [pid 7353] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7353] setpgid(0, 0) = 0 [pid 7353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 7353] write(3, "1000", 4) = 4 [pid 7353] close(3) = 0 [pid 7353] write(1, "executing program\n", 18) = 18 [pid 7353] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7353] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7353] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7353] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7353] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7353] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7354 attached [pid 7354] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7353] <... clone3 resumed> => {parent_tid=[7354]}, 88) = 7354 [pid 7354] set_robust_list(0x7fb72497a9a0, 24 [pid 7353] rt_sigprocmask(SIG_SETMASK, [], [pid 7354] <... set_robust_list resumed>) = 0 [pid 7353] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7354] rt_sigprocmask(SIG_SETMASK, [], [pid 7353] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7354] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7353] <... futex resumed>) = 0 [pid 7353] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7354] memfd_create("syzkaller", 0) = 3 [pid 7354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7350] <... close resumed>) = 0 [pid 7350] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7349] <... futex resumed>) = 0 [pid 7349] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7349] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7350] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7350] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7349] <... futex resumed>) = 0 [pid 7350] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7349] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7350] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7349] <... futex resumed>) = 0 [pid 7350] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7349] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7350] <... futex resumed>) = 0 [pid 7349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7350] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7349] exit_group(0) = ? [pid 7350] <... futex resumed>) = ? [pid 7350] +++ exited with 0 +++ [pid 7349] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7349, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7355 attached , child_tidptr=0x55556c203690) = 7355 [pid 7355] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7355] setpgid(0, 0) = 0 [pid 7355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7355] write(3, "1000", 4) = 4 [pid 7355] close(3) = 0 executing program [pid 7355] write(1, "executing program\n", 18) = 18 [pid 7355] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7355] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7355] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7355] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7355] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7355] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7356 attached [pid 7356] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7355] <... clone3 resumed> => {parent_tid=[7356]}, 88) = 7356 [pid 7356] <... rseq resumed>) = 0 [pid 7355] rt_sigprocmask(SIG_SETMASK, [], [pid 7356] set_robust_list(0x7fb72497a9a0, 24 [pid 7355] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7356] <... set_robust_list resumed>) = 0 [pid 7355] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7356] rt_sigprocmask(SIG_SETMASK, [], [pid 7355] <... futex resumed>) = 0 [pid 7356] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7355] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7356] memfd_create("syzkaller", 0 [pid 7354] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7356] <... memfd_create resumed>) = 3 [pid 7356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7352] <... write resumed>) = 16777216 [pid 7352] munmap(0x7fb71c400000, 138412032) = 0 [pid 7352] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7352] close(3 [pid 7356] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7352] <... close resumed>) = 0 [pid 7352] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7351] <... futex resumed>) = 0 [pid 7352] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7351] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7352] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7352] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7351] <... futex resumed>) = 0 [pid 7352] <... futex resumed>) = 0 [pid 7352] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7351] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7351] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7352] <... futex resumed>) = 0 [pid 7351] <... futex resumed>) = 1 [pid 7352] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7351] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7352] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7351] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7352] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7351] exit_group(0 [pid 7352] <... futex resumed>) = ? [pid 7351] <... exit_group resumed>) = ? [pid 7352] +++ exited with 0 +++ [pid 7351] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7351, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=38 /* 0.38 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7357 attached [pid 7357] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7357 [pid 7354] <... write resumed>) = 16777216 [pid 7354] munmap(0x7fb71c400000, 138412032 [pid 7357] <... prctl resumed>) = 0 [pid 7356] <... write resumed>) = 16777216 [pid 7357] setpgid(0, 0 [pid 7356] munmap(0x7fb71c400000, 138412032 [pid 7357] <... setpgid resumed>) = 0 [pid 7357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7357] write(3, "1000", 4) = 4 [pid 7354] <... munmap resumed>) = 0 [pid 7354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7354] close(3 [pid 7357] close(3 [pid 7356] <... munmap resumed>) = 0 [pid 7357] <... close resumed>) = 0 executing program [pid 7356] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7357] write(1, "executing program\n", 18) = 18 [pid 7357] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7356] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7357] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7356] close(3 [pid 7357] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7357] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7357] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7357] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7357] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7358 attached [pid 7358] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7357] <... clone3 resumed> => {parent_tid=[7358]}, 88) = 7358 [pid 7358] <... rseq resumed>) = 0 [pid 7358] set_robust_list(0x7fb72497a9a0, 24 [pid 7357] rt_sigprocmask(SIG_SETMASK, [], [pid 7358] <... set_robust_list resumed>) = 0 [pid 7358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7358] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7357] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7357] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7358] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7357] <... futex resumed>) = 0 [pid 7358] memfd_create("syzkaller", 0) = 3 [pid 7357] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7354] <... close resumed>) = 0 [pid 7354] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7356] <... close resumed>) = 0 [pid 7353] <... futex resumed>) = 0 [pid 7354] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7353] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7356] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7353] <... futex resumed>) = 0 [pid 7356] <... futex resumed>) = 1 [pid 7353] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7358] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7356] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7355] <... futex resumed>) = 0 [pid 7354] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7355] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7354] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7355] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7354] <... futex resumed>) = 1 [pid 7353] <... futex resumed>) = 0 [pid 7354] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7353] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7353] <... futex resumed>) = 0 [pid 7356] <... futex resumed>) = 0 [pid 7354] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7353] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7356] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7354] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7356] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7356] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7354] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7356] <... futex resumed>) = 1 [pid 7355] <... futex resumed>) = 0 [pid 7356] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7354] <... futex resumed>) = 1 [pid 7355] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7353] <... futex resumed>) = 0 [pid 7356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7355] <... futex resumed>) = 0 [pid 7354] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7356] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7355] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7353] exit_group(0 [pid 7356] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7354] <... futex resumed>) = ? [pid 7353] <... exit_group resumed>) = ? [pid 7356] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7354] +++ exited with 0 +++ [pid 7356] <... futex resumed>) = 1 [pid 7356] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7353] +++ exited with 0 +++ [pid 7355] <... futex resumed>) = 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7353, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- [pid 7355] exit_group(0 [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7355] <... exit_group resumed>) = ? [pid 7356] <... futex resumed>) = ? [pid 7356] +++ exited with 0 +++ [pid 7355] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7355, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5868] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 7359 attached [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7359] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7359] <... set_robust_list resumed>) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7360 attached [pid 7359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7359 [pid 7359] <... prctl resumed>) = 0 [pid 7359] setpgid(0, 0) = 0 [pid 7359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7360] set_robust_list(0x55556c2036a0, 24 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7360 [pid 7360] <... set_robust_list resumed>) = 0 [pid 7359] write(3, "1000", 4 [pid 7360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7359] <... write resumed>) = 4 [pid 7359] close(3 [pid 7360] <... prctl resumed>) = 0 [pid 7360] setpgid(0, 0 [pid 7359] <... close resumed>) = 0 [pid 7360] <... setpgid resumed>) = 0 executing program [pid 7359] write(1, "executing program\n", 18 [pid 7360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7359] <... write resumed>) = 18 [pid 7359] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7360] <... openat resumed>) = 3 [pid 7359] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7360] write(3, "1000", 4 [pid 7359] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7360] <... write resumed>) = 4 [pid 7359] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7360] close(3 [pid 7359] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7360] <... close resumed>) = 0 [pid 7359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7360] write(1, "executing program\n", 18 [pid 7359] <... mmap resumed>) = 0x7fb72495a000 executing program [pid 7360] <... write resumed>) = 18 [pid 7359] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7360] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7359] <... mprotect resumed>) = 0 [pid 7360] <... futex resumed>) = 0 [pid 7360] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7359] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7360] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7359] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7360] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7359] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7360] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 7361 attached [pid 7360] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7360] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7359] <... clone3 resumed> => {parent_tid=[7361]}, 88) = 7361 [pid 7360] <... mprotect resumed>) = 0 [pid 7359] rt_sigprocmask(SIG_SETMASK, [], [pid 7360] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7359] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7359] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7361] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7359] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7361] <... rseq resumed>) = 0 [pid 7360] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7361] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7360] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7361] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 7362 attached NULL, 8) = 0 [pid 7362] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7361] memfd_create("syzkaller", 0 [pid 7360] <... clone3 resumed> => {parent_tid=[7362]}, 88) = 7362 [pid 7362] set_robust_list(0x7fb72497a9a0, 24 [pid 7361] <... memfd_create resumed>) = 3 [pid 7362] <... set_robust_list resumed>) = 0 [pid 7361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7361] <... mmap resumed>) = 0x7fb71c400000 [pid 7360] rt_sigprocmask(SIG_SETMASK, [], [pid 7362] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7360] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7360] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7360] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7362] memfd_create("syzkaller", 0) = 3 [pid 7362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7358] <... write resumed>) = 16777216 [pid 7358] munmap(0x7fb71c400000, 138412032 [pid 7361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7358] <... munmap resumed>) = 0 [pid 7358] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7358] close(3 [pid 7362] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7358] <... close resumed>) = 0 [pid 7358] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7357] <... futex resumed>) = 0 [pid 7358] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7357] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7358] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7357] <... futex resumed>) = 0 [pid 7358] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7357] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7358] <... futex resumed>) = 0 [pid 7357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7358] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7357] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7358] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7357] <... futex resumed>) = 0 [pid 7358] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7357] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7358] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7358] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7357] <... futex resumed>) = 0 [pid 7358] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7357] exit_group(0 [pid 7358] <... futex resumed>) = ? [pid 7357] <... exit_group resumed>) = ? [pid 7358] +++ exited with 0 +++ [pid 7357] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7357, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7363 attached , child_tidptr=0x55556c203690) = 7363 [pid 7363] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7363] setpgid(0, 0) = 0 executing program [pid 7363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7363] write(3, "1000", 4) = 4 [pid 7363] close(3) = 0 [pid 7363] write(1, "executing program\n", 18) = 18 [pid 7363] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7363] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7363] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7363] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7363] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7363] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7363] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7364]}, 88) = 7364 [pid 7363] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7363] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7363] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7364 attached [pid 7364] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7364] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7364] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7364] memfd_create("syzkaller", 0) = 3 [pid 7364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7362] <... write resumed>) = 16777216 [pid 7362] munmap(0x7fb71c400000, 138412032 [pid 7361] <... write resumed>) = 16777216 [pid 7362] <... munmap resumed>) = 0 [pid 7362] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7361] munmap(0x7fb71c400000, 138412032 [pid 7362] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7362] close(3 [pid 7361] <... munmap resumed>) = 0 [pid 7361] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7361] close(3 [pid 7364] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7361] <... close resumed>) = 0 [pid 7361] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7359] <... futex resumed>) = 0 [pid 7361] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7359] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7361] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7361] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7361] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 7359] <... futex resumed>) = 1 [pid 7361] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7359] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7359] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7361] <... futex resumed>) = 0 [pid 7359] <... futex resumed>) = 1 [pid 7361] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7359] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7361] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7361] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7359] <... futex resumed>) = 0 [pid 7361] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7359] exit_group(0 [pid 7361] <... futex resumed>) = ? [pid 7359] <... exit_group resumed>) = ? [pid 7361] +++ exited with 0 +++ [pid 7359] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7359, si_uid=0, si_status=0, si_utime=0, si_stime=40 /* 0.40 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7365 ./strace-static-x86_64: Process 7365 attached [pid 7365] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7365] setpgid(0, 0 [pid 7362] <... close resumed>) = 0 [pid 7365] <... setpgid resumed>) = 0 [pid 7362] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7360] <... futex resumed>) = 0 [pid 7365] <... openat resumed>) = 3 [pid 7362] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7360] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7362] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7360] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7365] write(3, "1000", 4 [pid 7362] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7365] <... write resumed>) = 4 [pid 7362] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7365] close(3 [pid 7362] <... futex resumed>) = 1 [pid 7362] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7360] <... futex resumed>) = 0 [pid 7365] <... close resumed>) = 0 [pid 7362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7360] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7362] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0executing program [pid 7365] write(1, "executing program\n", 18 [pid 7362] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7360] <... futex resumed>) = 0 [pid 7365] <... write resumed>) = 18 [pid 7362] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7360] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7365] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7362] <... futex resumed>) = 0 [pid 7360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7365] <... futex resumed>) = 0 [pid 7362] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7360] exit_group(0 [pid 7365] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7362] <... futex resumed>) = ? [pid 7360] <... exit_group resumed>) = ? [pid 7365] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7362] +++ exited with 0 +++ [pid 7365] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7365] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7365] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7365] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7360] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7360, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- ./strace-static-x86_64: Process 7366 attached [pid 7366] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7366] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7365] <... clone3 resumed> => {parent_tid=[7366]}, 88) = 7366 [pid 7366] rt_sigprocmask(SIG_SETMASK, [], [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7365] rt_sigprocmask(SIG_SETMASK, [], [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7365] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7365] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7365] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7367 attached [pid 7366] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7367] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7366] memfd_create("syzkaller", 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7367 [pid 7367] setpgid(0, 0) = 0 [pid 7367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7366] <... memfd_create resumed>) = 3 [pid 7364] <... write resumed>) = 16777216 [pid 7367] write(3, "1000", 4 [pid 7364] munmap(0x7fb71c400000, 138412032 [pid 7366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7367] <... write resumed>) = 4 [pid 7367] close(3 [pid 7366] <... mmap resumed>) = 0x7fb71c400000 [pid 7367] <... close resumed>) = 0 [pid 7364] <... munmap resumed>) = 0 executing program [pid 7367] write(1, "executing program\n", 18 [pid 7364] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7367] <... write resumed>) = 18 [pid 7364] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7367] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7367] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7367] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7364] close(3 [pid 7367] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7367] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7367] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7367] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7368]}, 88) = 7368 [pid 7367] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7367] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7367] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7368 attached [pid 7368] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7368] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7368] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7368] memfd_create("syzkaller", 0) = 3 [pid 7368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7364] <... close resumed>) = 0 [pid 7366] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7364] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7363] <... futex resumed>) = 0 [pid 7363] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7363] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7364] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7364] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7363] <... futex resumed>) = 0 [pid 7363] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7363] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7364] <... futex resumed>) = 1 [pid 7364] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7364] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7363] <... futex resumed>) = 0 [pid 7363] exit_group(0) = ? [pid 7364] <... futex resumed>) = ? [pid 7364] +++ exited with 0 +++ [pid 7363] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7363, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7369 ./strace-static-x86_64: Process 7369 attached [pid 7369] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7369] setpgid(0, 0) = 0 [pid 7369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7369] write(3, "1000", 4) = 4 [pid 7369] close(3executing program ) = 0 [pid 7369] write(1, "executing program\n", 18) = 18 [pid 7369] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7369] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7369] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7369] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7369] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7369] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7369] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7368] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 7370 attached [pid 7370] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7370] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7370] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7370] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7369] <... clone3 resumed> => {parent_tid=[7370]}, 88) = 7370 [pid 7369] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7369] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7370] <... futex resumed>) = 0 [pid 7369] <... futex resumed>) = 1 [pid 7370] memfd_create("syzkaller", 0 [pid 7369] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7370] <... memfd_create resumed>) = 3 [pid 7370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7366] <... write resumed>) = 16777216 [pid 7366] munmap(0x7fb71c400000, 138412032 [pid 7370] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7366] <... munmap resumed>) = 0 [pid 7366] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7366] close(3 [pid 7368] <... write resumed>) = 16777216 [pid 7368] munmap(0x7fb71c400000, 138412032) = 0 [pid 7368] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7368] close(3 [pid 7366] <... close resumed>) = 0 [pid 7366] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7365] <... futex resumed>) = 0 [pid 7365] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7366] <... futex resumed>) = 1 [pid 7365] <... futex resumed>) = 0 [pid 7366] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7365] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7366] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7366] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7365] <... futex resumed>) = 0 [pid 7366] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7365] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7365] <... futex resumed>) = 0 [pid 7366] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7365] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7366] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7370] <... write resumed>) = 16777216 [pid 7366] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7370] munmap(0x7fb71c400000, 138412032 [pid 7366] <... futex resumed>) = 1 [pid 7365] <... futex resumed>) = 0 [pid 7366] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7365] exit_group(0 [pid 7366] <... futex resumed>) = ? [pid 7365] <... exit_group resumed>) = ? [pid 7366] +++ exited with 0 +++ [pid 7365] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7365, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7371 attached , child_tidptr=0x55556c203690) = 7371 [pid 7370] <... munmap resumed>) = 0 [pid 7371] set_robust_list(0x55556c2036a0, 24 [pid 7370] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7371] <... set_robust_list resumed>) = 0 [pid 7371] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7370] close(3 [pid 7368] <... close resumed>) = 0 [pid 7368] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7367] <... futex resumed>) = 0 [pid 7368] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7367] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7367] <... futex resumed>) = 0 [pid 7368] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7367] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7368] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7368] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7371] <... prctl resumed>) = 0 [pid 7371] setpgid(0, 0 [pid 7368] <... futex resumed>) = 1 [pid 7367] <... futex resumed>) = 0 [pid 7368] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7367] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7371] <... setpgid resumed>) = 0 [pid 7368] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7367] <... futex resumed>) = 0 [pid 7371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7368] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7367] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7368] <... futex resumed>) = 0 [pid 7367] exit_group(0) = ? [pid 7371] <... openat resumed>) = 3 [pid 7371] write(3, "1000", 4 [pid 7368] +++ exited with 0 +++ [pid 7367] +++ exited with 0 +++ [pid 7371] <... write resumed>) = 4 executing program [pid 7371] close(3) = 0 [pid 7371] write(1, "executing program\n", 18) = 18 [pid 7371] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7367, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=31 /* 0.31 s */} --- [pid 7371] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7371] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7371] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7371] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7371] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7371] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7371] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7372 attached ./strace-static-x86_64: Process 7373 attached [pid 7371] <... clone3 resumed> => {parent_tid=[7372]}, 88) = 7372 [pid 7371] rt_sigprocmask(SIG_SETMASK, [], [pid 7373] set_robust_list(0x55556c2036a0, 24 [pid 7371] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7373] <... set_robust_list resumed>) = 0 [pid 7371] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7371] <... futex resumed>) = 0 [pid 7371] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7373] <... prctl resumed>) = 0 [pid 7373] setpgid(0, 0) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7373 [pid 7373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7372] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7372] set_robust_list(0x7fb72497a9a0, 24 [pid 7373] write(3, "1000", 4 [pid 7372] <... set_robust_list resumed>) = 0 [pid 7372] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7373] <... write resumed>) = 4 [pid 7372] memfd_create("syzkaller", 0 [pid 7373] close(3executing program ) = 0 [pid 7373] write(1, "executing program\n", 18) = 18 [pid 7373] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7373] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7372] <... memfd_create resumed>) = 3 [pid 7373] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7373] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7373] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7373] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7372] <... mmap resumed>) = 0x7fb71c400000 [pid 7373] <... mmap resumed>) = 0x7fb72495a000 [pid 7373] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7373] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7373] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7374 attached [pid 7374] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7373] <... clone3 resumed> => {parent_tid=[7374]}, 88) = 7374 [pid 7374] <... rseq resumed>) = 0 [pid 7373] rt_sigprocmask(SIG_SETMASK, [], [pid 7374] set_robust_list(0x7fb72497a9a0, 24 [pid 7373] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7374] <... set_robust_list resumed>) = 0 [pid 7373] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7374] rt_sigprocmask(SIG_SETMASK, [], [pid 7373] <... futex resumed>) = 0 [pid 7374] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7373] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7374] memfd_create("syzkaller", 0) = 3 [pid 7374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7370] <... close resumed>) = 0 [pid 7370] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7369] <... futex resumed>) = 0 [pid 7370] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7369] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7370] <... futex resumed>) = 0 [pid 7369] <... futex resumed>) = 1 [pid 7370] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7369] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7370] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7370] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7369] <... futex resumed>) = 0 [pid 7370] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7369] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7370] <... futex resumed>) = 0 [pid 7369] <... futex resumed>) = 1 [pid 7370] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7369] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7370] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7370] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7369] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7370] <... futex resumed>) = 0 [pid 7369] exit_group(0) = ? [pid 7370] +++ exited with 0 +++ [pid 7372] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7369] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7369, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- [pid 7374] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7375 attached , child_tidptr=0x55556c203690) = 7375 [pid 7375] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7375] setpgid(0, 0) = 0 [pid 7375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7375] write(3, "1000", 4) = 4 [pid 7375] close(3) = 0 executing program [pid 7375] write(1, "executing program\n", 18) = 18 [pid 7375] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7375] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7375] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7375] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7375] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7375] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7376 attached [pid 7376] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7375] <... clone3 resumed> => {parent_tid=[7376]}, 88) = 7376 [pid 7376] <... rseq resumed>) = 0 [pid 7375] rt_sigprocmask(SIG_SETMASK, [], [pid 7376] set_robust_list(0x7fb72497a9a0, 24 [pid 7375] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7376] <... set_robust_list resumed>) = 0 [pid 7375] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7376] rt_sigprocmask(SIG_SETMASK, [], [pid 7375] <... futex resumed>) = 0 [pid 7376] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7375] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7376] memfd_create("syzkaller", 0) = 3 [pid 7376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7372] <... write resumed>) = 16777216 [pid 7372] munmap(0x7fb71c400000, 138412032) = 0 [pid 7372] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7376] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7374] <... write resumed>) = 16777216 [pid 7372] close(3 [pid 7374] munmap(0x7fb71c400000, 138412032) = 0 [pid 7374] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7374] close(3 [pid 7376] <... write resumed>) = 16777216 [pid 7374] <... close resumed>) = 0 [pid 7372] <... close resumed>) = 0 [pid 7372] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7371] <... futex resumed>) = 0 [pid 7372] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7371] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7371] <... futex resumed>) = 0 [pid 7372] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7371] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7372] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7372] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7371] <... futex resumed>) = 0 [pid 7372] <... futex resumed>) = 1 [pid 7371] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7372] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7371] <... futex resumed>) = 0 [pid 7371] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7372] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7372] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7376] munmap(0x7fb71c400000, 138412032 [pid 7374] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7372] <... futex resumed>) = 1 [pid 7371] <... futex resumed>) = 0 [pid 7374] <... futex resumed>) = 1 [pid 7373] <... futex resumed>) = 0 [pid 7372] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7371] exit_group(0 [pid 7373] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7373] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7374] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7374] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7373] <... futex resumed>) = 0 [pid 7374] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7373] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7374] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7373] <... futex resumed>) = 0 [pid 7374] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7374] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7373] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7373] exit_group(0 [pid 7374] <... futex resumed>) = ? [pid 7373] <... exit_group resumed>) = ? [pid 7374] +++ exited with 0 +++ [pid 7373] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7373, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...> [pid 7372] <... futex resumed>) = ? [pid 7371] <... exit_group resumed>) = ? [pid 7376] <... munmap resumed>) = 0 [pid 5868] <... restart_syscall resumed>) = 0 [pid 7376] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7376] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7376] close(3 [pid 5868] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7372] +++ exited with 0 +++ [pid 7371] +++ exited with 0 +++ [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7377 attached [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7371, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 7377] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7377] <... prctl resumed>) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7377] setpgid(0, 0./strace-static-x86_64: Process 7378 attached ) = 0 [pid 7377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5868] <... clone resumed>, child_tidptr=0x55556c203690) = 7377 [pid 7377] <... openat resumed>) = 3 [pid 7378] set_robust_list(0x55556c2036a0, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7378 [pid 7378] <... set_robust_list resumed>) = 0 [pid 7377] write(3, "1000", 4 [pid 7378] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7377] <... write resumed>) = 4 [pid 7377] close(3 [pid 7378] <... prctl resumed>) = 0 [pid 7378] setpgid(0, 0executing program [pid 7377] <... close resumed>) = 0 [pid 7378] <... setpgid resumed>) = 0 [pid 7378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7377] write(1, "executing program\n", 18) = 18 [pid 7377] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7378] <... openat resumed>) = 3 [pid 7377] <... futex resumed>) = 0 [pid 7377] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7378] write(3, "1000", 4) = 4 [pid 7377] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7378] close(3 [pid 7377] <... rt_sigprocmask resumed>NULL, 8) = 0 executing program [pid 7378] <... close resumed>) = 0 [pid 7377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7378] write(1, "executing program\n", 18 [pid 7377] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE [pid 7378] <... write resumed>) = 18 [pid 7377] <... mprotect resumed>) = 0 [pid 7378] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7377] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7378] <... futex resumed>) = 0 [pid 7378] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7377] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7378] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7378] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7377] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7379 attached [pid 7378] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7377] <... clone3 resumed> => {parent_tid=[7379]}, 88) = 7379 [pid 7378] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7377] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7378] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7377] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7377] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7378] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7378] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7379] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7379] set_robust_list(0x7fb72497a9a0, 24./strace-static-x86_64: Process 7380 attached ) = 0 [pid 7378] <... clone3 resumed> => {parent_tid=[7380]}, 88) = 7380 [pid 7380] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7379] rt_sigprocmask(SIG_SETMASK, [], [pid 7380] <... rseq resumed>) = 0 [pid 7379] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7378] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7378] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7378] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7380] set_robust_list(0x7fb72497a9a0, 24 [pid 7379] memfd_create("syzkaller", 0) = 3 [pid 7380] <... set_robust_list resumed>) = 0 [pid 7379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7379] <... mmap resumed>) = 0x7fb71c400000 [pid 7380] memfd_create("syzkaller", 0) = 3 [pid 7380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7376] <... close resumed>) = 0 [pid 7376] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7375] <... futex resumed>) = 0 [pid 7375] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7376] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7375] <... futex resumed>) = 0 [pid 7376] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7375] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7376] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7375] <... futex resumed>) = 0 [pid 7375] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7376] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7375] <... futex resumed>) = 0 [pid 7376] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7375] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7376] <... futex resumed>) = 0 [pid 7375] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7376] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7375] exit_group(0 [pid 7376] <... futex resumed>) = ? [pid 7375] <... exit_group resumed>) = ? [pid 7376] +++ exited with 0 +++ [pid 7375] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7375, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7381 attached , child_tidptr=0x55556c203690) = 7381 [pid 7381] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7381] setpgid(0, 0) = 0 [pid 7381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7381] write(3, "1000", 4) = 4 executing program [pid 7381] close(3) = 0 [pid 7381] write(1, "executing program\n", 18) = 18 [pid 7381] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7381] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7381] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7381] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7381] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7381] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7381] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7382 attached => {parent_tid=[7382]}, 88) = 7382 [pid 7382] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7381] rt_sigprocmask(SIG_SETMASK, [], [pid 7379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7382] set_robust_list(0x7fb72497a9a0, 24 [pid 7381] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7382] <... set_robust_list resumed>) = 0 [pid 7381] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7382] rt_sigprocmask(SIG_SETMASK, [], [pid 7381] <... futex resumed>) = 0 [pid 7382] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7381] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7382] memfd_create("syzkaller", 0) = 3 [pid 7382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7382] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7379] <... write resumed>) = 16777216 [pid 7379] munmap(0x7fb71c400000, 138412032) = 0 [pid 7379] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7379] close(3 [pid 7380] <... write resumed>) = 16777216 [pid 7380] munmap(0x7fb71c400000, 138412032) = 0 [pid 7380] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7380] close(3 [pid 7382] <... write resumed>) = 16777216 [pid 7382] munmap(0x7fb71c400000, 138412032) = 0 [pid 7382] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7382] close(3 [pid 7379] <... close resumed>) = 0 [pid 7379] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7377] <... futex resumed>) = 0 [pid 7377] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7379] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7377] <... futex resumed>) = 0 [pid 7377] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7379] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7377] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7379] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7377] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7379] <... futex resumed>) = 0 [pid 7377] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7379] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7379] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7377] <... futex resumed>) = 0 [pid 7379] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7377] exit_group(0) = ? [pid 7379] <... futex resumed>) = ? [pid 7379] +++ exited with 0 +++ [pid 7377] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7377, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7383 attached , child_tidptr=0x55556c203690) = 7383 [pid 7383] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7383] setpgid(0, 0) = 0 [pid 7383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7383] write(3, "1000", 4) = 4 [pid 7383] close(3) = 0 executing program [pid 7383] write(1, "executing program\n", 18 [pid 7380] <... close resumed>) = 0 [pid 7383] <... write resumed>) = 18 [pid 7383] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7383] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7383] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7383] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7383] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7380] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7383] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7380] <... futex resumed>) = 1 [pid 7378] <... futex resumed>) = 0 [pid 7383] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7380] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7378] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7383] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7378] <... futex resumed>) = 0 [pid 7380] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7378] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7384 attached [pid 7380] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7380] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7378] <... futex resumed>) = 0 [pid 7380] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7378] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7383] <... clone3 resumed> => {parent_tid=[7384]}, 88) = 7384 [pid 7380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7378] <... futex resumed>) = 0 [pid 7383] rt_sigprocmask(SIG_SETMASK, [], [pid 7380] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7378] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7383] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7380] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7383] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7380] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7383] <... futex resumed>) = 0 [pid 7380] <... futex resumed>) = 1 [pid 7378] <... futex resumed>) = 0 [pid 7384] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7383] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7380] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7378] exit_group(0 [pid 7384] <... rseq resumed>) = 0 [pid 7378] <... exit_group resumed>) = ? [pid 7384] set_robust_list(0x7fb72497a9a0, 24 [pid 7380] <... futex resumed>) = ? [pid 7384] <... set_robust_list resumed>) = 0 [pid 7380] +++ exited with 0 +++ [pid 7378] +++ exited with 0 +++ [pid 7384] rt_sigprocmask(SIG_SETMASK, [], [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7378, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 7384] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7384] memfd_create("syzkaller", 0) = 3 [pid 7384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7385 attached [pid 7385] set_robust_list(0x55556c2036a0, 24 [pid 7382] <... close resumed>) = 0 [pid 7385] <... set_robust_list resumed>) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7385 [pid 7385] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7382] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7381] <... futex resumed>) = 0 [pid 7385] <... prctl resumed>) = 0 [pid 7382] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7381] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7385] setpgid(0, 0 [pid 7382] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7381] <... futex resumed>) = 0 [pid 7382] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7381] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7385] <... setpgid resumed>) = 0 [pid 7382] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7382] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7385] write(3, "1000", 4 [pid 7382] <... futex resumed>) = 1 [pid 7381] <... futex resumed>) = 0 [pid 7385] <... write resumed>) = 4 [pid 7382] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7381] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7385] close(3 [pid 7382] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7381] <... futex resumed>) = 0 [pid 7385] <... close resumed>) = 0 [pid 7382] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7381] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}executing program [pid 7385] write(1, "executing program\n", 18 [pid 7382] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7385] <... write resumed>) = 18 [pid 7382] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7385] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7382] <... futex resumed>) = 1 [pid 7381] <... futex resumed>) = 0 [pid 7385] <... futex resumed>) = 0 [pid 7382] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7381] exit_group(0 [pid 7385] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, [pid 7382] <... futex resumed>) = ? [pid 7381] <... exit_group resumed>) = ? [pid 7385] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7385] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7382] +++ exited with 0 +++ [pid 7381] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7381, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 7385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7385] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7385] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7384] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7385] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7386 attached [pid 7386] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7385] <... clone3 resumed> => {parent_tid=[7386]}, 88) = 7386 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7386] <... rseq resumed>) = 0 [pid 7385] rt_sigprocmask(SIG_SETMASK, [], [pid 7386] set_robust_list(0x7fb72497a9a0, 24 [pid 7385] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7386] <... set_robust_list resumed>) = 0 [pid 7385] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7386] rt_sigprocmask(SIG_SETMASK, [], [pid 7385] <... futex resumed>) = 0 [pid 7386] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7385] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7386] memfd_create("syzkaller", 0./strace-static-x86_64: Process 7387 attached [pid 7387] set_robust_list(0x55556c2036a0, 24 [pid 7386] <... memfd_create resumed>) = 3 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7387 [pid 7387] <... set_robust_list resumed>) = 0 [pid 7386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7386] <... mmap resumed>) = 0x7fb71c400000 [pid 7387] <... prctl resumed>) = 0 [pid 7387] setpgid(0, 0) = 0 [pid 7387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7387] write(3, "1000", 4) = 4 [pid 7387] close(3) = 0 executing program [pid 7387] write(1, "executing program\n", 18) = 18 [pid 7387] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7387] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7387] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7387] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7387] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7387] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7387] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7388 attached => {parent_tid=[7388]}, 88) = 7388 [pid 7387] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7387] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7387] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7388] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7388] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7388] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7388] memfd_create("syzkaller", 0) = 3 [pid 7388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7386] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7384] <... write resumed>) = 16777216 [pid 7384] munmap(0x7fb71c400000, 138412032 [pid 7388] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7384] <... munmap resumed>) = 0 [pid 7384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7384] close(3 [pid 7386] <... write resumed>) = 16777216 [pid 7386] munmap(0x7fb71c400000, 138412032 [pid 7384] <... close resumed>) = 0 [pid 7384] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7383] <... futex resumed>) = 0 [pid 7384] <... futex resumed>) = 1 [pid 7383] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7384] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7386] <... munmap resumed>) = 0 [pid 7383] <... futex resumed>) = 0 [pid 7384] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7386] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7383] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7384] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7386] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7386] close(3 [pid 7384] <... futex resumed>) = 1 [pid 7384] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7383] <... futex resumed>) = 0 [pid 7383] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7384] <... futex resumed>) = 0 [pid 7383] <... futex resumed>) = 1 [pid 7384] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7383] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7384] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7384] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7384] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7383] <... futex resumed>) = 0 [pid 7383] exit_group(0 [pid 7384] <... futex resumed>) = ? [pid 7383] <... exit_group resumed>) = ? [pid 7384] +++ exited with 0 +++ [pid 7383] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7383, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7389 attached , child_tidptr=0x55556c203690) = 7389 [pid 7389] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7389] setpgid(0, 0) = 0 [pid 7389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7389] write(3, "1000", 4) = 4 [pid 7389] close(3executing program ) = 0 [pid 7389] write(1, "executing program\n", 18) = 18 [pid 7389] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7389] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7389] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7389] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7389] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7389] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7389] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7390 attached => {parent_tid=[7390]}, 88) = 7390 [pid 7390] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7389] rt_sigprocmask(SIG_SETMASK, [], [pid 7390] <... rseq resumed>) = 0 [pid 7389] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7390] set_robust_list(0x7fb72497a9a0, 24 [pid 7389] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7390] <... set_robust_list resumed>) = 0 [pid 7389] <... futex resumed>) = 0 [pid 7390] rt_sigprocmask(SIG_SETMASK, [], [pid 7389] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7390] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7390] memfd_create("syzkaller", 0) = 3 [pid 7390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7388] <... write resumed>) = 16777216 [pid 7388] munmap(0x7fb71c400000, 138412032) = 0 [pid 7388] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7388] close(3 [pid 7386] <... close resumed>) = 0 [pid 7390] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7386] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7385] <... futex resumed>) = 0 [pid 7386] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7385] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7385] <... futex resumed>) = 0 [pid 7385] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7386] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7386] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7385] <... futex resumed>) = 0 [pid 7385] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7386] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7385] <... futex resumed>) = 0 [pid 7386] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7385] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7386] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7385] <... futex resumed>) = 0 [pid 7386] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7385] exit_group(0) = ? [pid 7386] <... futex resumed>) = ? [pid 7386] +++ exited with 0 +++ [pid 7385] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7385, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7391 ./strace-static-x86_64: Process 7391 attached [pid 7391] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7391] setpgid(0, 0) = 0 [pid 7391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7391] write(3, "1000", 4) = 4 [pid 7391] close(3) = 0 executing program [pid 7391] write(1, "executing program\n", 18) = 18 [pid 7391] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7391] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7391] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7391] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7391] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7391] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7392]}, 88) = 7392 [pid 7391] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7391] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7391] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7392 attached [pid 7392] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7392] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7392] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7392] memfd_create("syzkaller", 0) = 3 [pid 7392] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7388] <... close resumed>) = 0 [pid 7388] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7387] <... futex resumed>) = 0 [pid 7387] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7388] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7387] <... futex resumed>) = 0 [pid 7388] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7387] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7388] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7387] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7388] <... futex resumed>) = 0 [pid 7387] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7388] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7387] <... futex resumed>) = 0 [pid 7388] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7387] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7388] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7387] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7388] <... futex resumed>) = 0 [pid 7387] exit_group(0 [pid 7388] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7387] <... exit_group resumed>) = ? [pid 7388] +++ exited with 0 +++ [pid 7387] +++ exited with 0 +++ [pid 7390] <... write resumed>) = 16777216 [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7387, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWRexecuting program [pid 7390] munmap(0x7fb71c400000, 138412032 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7393 attached , child_tidptr=0x55556c203690) = 7393 [pid 7393] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7393] setpgid(0, 0) = 0 [pid 7393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7393] write(3, "1000", 4) = 4 [pid 7393] close(3) = 0 [pid 7393] write(1, "executing program\n", 18) = 18 [pid 7393] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7393] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7393] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7393] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7390] <... munmap resumed>) = 0 [pid 7393] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7390] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7393] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7390] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7393] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7393] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} [pid 7390] close(3./strace-static-x86_64: Process 7394 attached [pid 7392] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7394] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7393] <... clone3 resumed> => {parent_tid=[7394]}, 88) = 7394 [pid 7394] <... rseq resumed>) = 0 [pid 7393] rt_sigprocmask(SIG_SETMASK, [], [pid 7394] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7393] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7394] rt_sigprocmask(SIG_SETMASK, [], [pid 7393] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7394] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7393] <... futex resumed>) = 0 [pid 7394] memfd_create("syzkaller", 0 [pid 7393] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7394] <... memfd_create resumed>) = 3 [pid 7394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7394] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7390] <... close resumed>) = 0 [pid 7390] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7390] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7389] <... futex resumed>) = 0 [pid 7389] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7390] <... futex resumed>) = 0 [pid 7389] <... futex resumed>) = 1 [pid 7390] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7390] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7390] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7389] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7389] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7390] <... futex resumed>) = 0 [pid 7389] <... futex resumed>) = 1 [pid 7390] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7390] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7390] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7389] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7389] exit_group(0 [pid 7390] <... futex resumed>) = ? [pid 7389] <... exit_group resumed>) = ? [pid 7390] +++ exited with 0 +++ [pid 7389] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7389, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=34 /* 0.34 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7395 ./strace-static-x86_64: Process 7395 attached [pid 7395] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7395] setpgid(0, 0) = 0 [pid 7395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7395] write(3, "1000", 4) = 4 [pid 7395] close(3executing program ) = 0 [pid 7395] write(1, "executing program\n", 18) = 18 [pid 7395] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7395] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7395] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7395] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7395] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7395] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7395] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7396 attached => {parent_tid=[7396]}, 88) = 7396 [pid 7395] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7395] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7396] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7395] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7396] <... rseq resumed>) = 0 [pid 7396] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7396] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7396] memfd_create("syzkaller", 0) = 3 [pid 7396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7392] <... write resumed>) = 16777216 [pid 7392] munmap(0x7fb71c400000, 138412032) = 0 [pid 7392] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7392] close(3 [pid 7396] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7394] <... write resumed>) = 16777216 [pid 7394] munmap(0x7fb71c400000, 138412032) = 0 [pid 7394] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7394] close(3 [pid 7392] <... close resumed>) = 0 [pid 7392] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7391] <... futex resumed>) = 0 [pid 7391] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7391] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7392] <... futex resumed>) = 1 [pid 7392] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7392] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7391] <... futex resumed>) = 0 [pid 7392] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7391] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7392] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7391] <... futex resumed>) = 0 [pid 7392] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7391] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7392] <... futex resumed>) = 0 [pid 7391] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7392] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7391] exit_group(0 [pid 7392] <... futex resumed>) = ? [pid 7391] <... exit_group resumed>) = ? [pid 7392] +++ exited with 0 +++ [pid 7391] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7391, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7397 ./strace-static-x86_64: Process 7397 attached executing program [pid 7397] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7397] setpgid(0, 0) = 0 [pid 7397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7397] write(3, "1000", 4) = 4 [pid 7397] close(3) = 0 [pid 7397] write(1, "executing program\n", 18) = 18 [pid 7397] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7397] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7397] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7397] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7397] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7397] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7397] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7398]}, 88) = 7398 [pid 7397] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 7398 attached [pid 7397] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7398] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7397] <... futex resumed>) = 0 [pid 7398] set_robust_list(0x7fb72497a9a0, 24 [pid 7397] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7398] <... set_robust_list resumed>) = 0 [pid 7398] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7398] memfd_create("syzkaller", 0) = 3 [pid 7398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7394] <... close resumed>) = 0 [pid 7396] <... write resumed>) = 16777216 [pid 7394] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7396] munmap(0x7fb71c400000, 138412032 [pid 7394] <... futex resumed>) = 1 [pid 7393] <... futex resumed>) = 0 [pid 7398] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7394] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7393] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7394] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7393] <... futex resumed>) = 0 [pid 7394] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7393] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7394] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7394] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7393] <... futex resumed>) = 0 [pid 7394] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7393] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7394] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7393] <... futex resumed>) = 0 [pid 7396] <... munmap resumed>) = 0 [pid 7394] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7393] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7396] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7394] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7396] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7394] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7396] close(3 [pid 7394] <... futex resumed>) = 1 [pid 7393] <... futex resumed>) = 0 [pid 7393] exit_group(0 [pid 7394] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 7393] <... exit_group resumed>) = ? [pid 7394] +++ exited with 0 +++ [pid 7393] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7393, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7399 ./strace-static-x86_64: Process 7399 attached [pid 7399] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7399] setpgid(0, 0) = 0 [pid 7399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7399] write(3, "1000", 4) = 4 executing program [pid 7399] close(3) = 0 [pid 7399] write(1, "executing program\n", 18) = 18 [pid 7399] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7399] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7399] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7399] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7399] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7399] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7399] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7400 attached => {parent_tid=[7400]}, 88) = 7400 [pid 7399] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7399] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7400] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7399] <... futex resumed>) = 0 [pid 7400] <... rseq resumed>) = 0 [pid 7400] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7400] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7400] memfd_create("syzkaller", 0 [pid 7399] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7400] <... memfd_create resumed>) = 3 [pid 7400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [ 347.792424][ T31] INFO: task syz-executor957:5896 blocked for more than 143 seconds. [ 347.812464][ T31] Not tainted 6.16.0-rc6-syzkaller-00205-gd786aba32000 #0 [ 347.820116][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [pid 7398] <... write resumed>) = 16777216 [ 347.862071][ T31] task:syz-executor957 state:D stack:28136 pid:5896 tgid:5874 ppid:5870 task_flags:0x400140 flags:0x00004006 [ 347.882114][ T31] Call Trace: [ 347.892393][ T31] [ 347.895355][ T31] __schedule+0x16f5/0x4d00 [ 347.899907][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [pid 7398] munmap(0x7fb71c400000, 138412032) = 0 [pid 7396] <... close resumed>) = 0 [pid 7396] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7398] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7396] <... futex resumed>) = 1 [ 347.911991][ T31] ? __lock_acquire+0xab9/0xd20 [ 347.918290][ T31] ? schedule+0x165/0x360 [ 347.922926][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 347.929328][ T31] ? __pfx___schedule+0x10/0x10 [ 347.948929][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 347.955726][ T31] ? schedule+0x91/0x360 [pid 7396] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7400] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7398] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7395] <... futex resumed>) = 0 [pid 7398] close(3 [pid 7395] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7395] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7396] <... futex resumed>) = 0 [pid 7396] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7396] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7396] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7395] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7396] <... futex resumed>) = 0 [pid 7395] <... futex resumed>) = 1 [pid 7396] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7395] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7396] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7396] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7396] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7395] exit_group(0 [pid 7396] <... futex resumed>) = ? [pid 7395] <... exit_group resumed>) = ? [pid 7396] +++ exited with 0 +++ [ 347.959999][ T31] schedule+0x165/0x360 [ 347.964534][ T31] io_schedule+0x80/0xd0 [ 347.968983][ T31] lock_metapage+0x1f3/0x400 [ 347.973939][ T31] ? lock_metapage+0x10b/0x400 [ 347.979406][ T31] ? __pfx_lock_metapage+0x10/0x10 [ 347.985000][ T31] ? __pfx_default_wake_function+0x10/0x10 [ 347.991783][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 347.997566][ T31] ? __filemap_get_folio+0x79f/0xaf0 [ 348.003557][ T31] __get_metapage+0x497/0xde0 [ 348.008945][ T31] ea_write+0x5e6/0xdd0 [pid 7395] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7395, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=35 /* 0.35 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7401 attached , child_tidptr=0x55556c203690) = 7401 [pid 7401] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 348.013707][ T31] ? __pfx_ea_write+0x10/0x10 [ 348.021517][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.027512][ T31] ? rcu_is_watching+0x15/0xb0 [ 348.032835][ T31] ? __jfs_setxattr+0x76e/0x1120 [ 348.038030][ T31] __jfs_setxattr+0x908/0x1120 [ 348.043835][ T31] ? __pfx___jfs_setxattr+0x10/0x10 [ 348.049819][ T31] ? rwsem_down_write_slowpath+0x7ec/0x1030 [ 348.056098][ T31] __jfs_xattr_set+0xda/0x170 [pid 7401] setpgid(0, 0) = 0 [pid 7401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7401] write(3, "1000", 4) = 4 [pid 7401] close(3) = 0 [pid 7401] write(1, "executing program\n", 18executing program ) = 18 [pid 7401] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7401] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7401] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7401] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7401] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7401] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7402 attached [ 348.061026][ T31] ? __pfx___jfs_xattr_set+0x10/0x10 [ 348.066717][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.082098][ T31] ? xattr_full_name+0x6f/0x90 [ 348.087185][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.102055][ T31] ? jfs_xattr_set+0x33/0x60 [ 348.106970][ T31] ? __pfx_jfs_xattr_set+0x10/0x10 => {parent_tid=[7402]}, 88) = 7402 [pid 7402] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7401] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7402] <... rseq resumed>) = 0 [pid 7402] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7402] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7402] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7401] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7402] <... futex resumed>) = 0 [pid 7401] <... futex resumed>) = 1 [pid 7402] memfd_create("syzkaller", 0) = 3 [pid 7402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [ 348.122045][ T31] __vfs_setxattr+0x43c/0x480 [ 348.127023][ T31] __vfs_setxattr_noperm+0x12d/0x660 [ 348.142106][ T31] vfs_setxattr+0x16b/0x2f0 [ 348.147117][ T31] ? __pfx_vfs_setxattr+0x10/0x10 [ 348.153810][ T31] ? mnt_get_write_access+0x223/0x2a0 [ 348.159560][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.166291][ T31] filename_setxattr+0x274/0x600 [ 348.171266][ T31] ? __pfx_filename_setxattr+0x10/0x10 [ 348.178084][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.183987][ T31] ? getname_flags+0x1e5/0x540 [ 348.189492][ T31] path_setxattrat+0x364/0x3a0 [ 348.194777][ T31] ? __pfx_path_setxattrat+0x10/0x10 [ 348.200922][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.207047][ T31] __x64_sys_lsetxattr+0xbf/0xe0 [ 348.213128][ T31] do_syscall_64+0xfa/0x3b0 [ 348.217657][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [pid 7401] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7398] <... close resumed>) = 0 [pid 7398] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7398] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7397] <... futex resumed>) = 0 [pid 7398] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7397] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7398] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7397] <... futex resumed>) = 0 [pid 7398] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7397] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7398] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7397] <... futex resumed>) = 0 [pid 7398] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7397] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7398] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7397] <... futex resumed>) = 0 [pid 7398] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7397] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7398] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 348.233047][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 348.239139][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.260713][ T31] ? exc_page_fault+0x9f/0xf0 [ 348.266504][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 348.272829][ T31] RIP: 0033:0x7fb7249c57b9 [pid 7397] exit_group(0 [pid 7398] <... futex resumed>) = ? [pid 7397] <... exit_group resumed>) = ? [pid 7398] +++ exited with 0 +++ [pid 7400] <... write resumed>) = 16777216 [pid 7397] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7397, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [ 348.280919][ T31] RSP: 002b:00007fb724959218 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd [ 348.290906][ T31] RAX: ffffffffffffffda RBX: 00007fb724a525f8 RCX: 00007fb7249c57b9 [ 348.300382][ T31] RDX: 0000000000000000 RSI: 00002000000021c0 RDI: 0000200000000000 [ 348.309400][ T31] RBP: 00007fb724a525f0 R08: 0000000000000000 R09: 0000000000000000 [ 348.317845][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000001c0 [pid 7400] munmap(0x7fb71c400000, 138412032 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7403 attached [pid 7402] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7403 [pid 7403] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7403] setpgid(0, 0) = 0 executing program [pid 7403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7403] write(3, "1000", 4) = 4 [pid 7403] close(3) = 0 [pid 7403] write(1, "executing program\n", 18) = 18 [pid 7403] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7403] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7403] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7403] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7403] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7403] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7404]}, 88) = 7404 [pid 7403] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7403] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 7404 attached ) = 0 [pid 7404] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7403] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7404] <... rseq resumed>) = 0 [pid 7400] <... munmap resumed>) = 0 [pid 7404] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7404] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 348.327299][ T31] R13: 0030656c69662f2e R14: 0000200000000180 R15: 0072657070752e79 [ 348.336131][ T31] [ 348.340201][ T31] INFO: task syz-executor957:5895 blocked for more than 143 seconds. [ 348.349074][ T31] Not tainted 6.16.0-rc6-syzkaller-00205-gd786aba32000 #0 [ 348.366557][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [pid 7404] memfd_create("syzkaller", 0 [pid 7400] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7404] <... memfd_create resumed>) = 3 [pid 7400] close(3 [pid 7404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [ 348.377794][ T31] task:syz-executor957 state:D stack:28136 pid:5895 tgid:5876 ppid:5871 task_flags:0x400140 flags:0x00004006 [ 348.392099][ T31] Call Trace: [ 348.395401][ T31] [ 348.398347][ T31] __schedule+0x16f5/0x4d00 [ 348.404528][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.410207][ T31] ? __lock_acquire+0xab9/0xd20 [ 348.416594][ T31] ? schedule+0x165/0x360 [ 348.420950][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.427944][ T31] ? __pfx___schedule+0x10/0x10 [ 348.433588][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.440094][ T31] ? schedule+0x91/0x360 [ 348.445189][ T31] schedule+0x165/0x360 [ 348.449374][ T31] io_schedule+0x80/0xd0 [ 348.454713][ T31] lock_metapage+0x1f3/0x400 [ 348.459764][ T31] ? lock_metapage+0x10b/0x400 [ 348.465603][ T31] ? __pfx_lock_metapage+0x10/0x10 [ 348.471147][ T31] ? __pfx_default_wake_function+0x10/0x10 [ 348.478033][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.484878][ T31] ? __filemap_get_folio+0x79f/0xaf0 [ 348.490973][ T31] __get_metapage+0x497/0xde0 [ 348.522074][ T31] ea_write+0x5e6/0xdd0 [ 348.526847][ T31] ? __pfx_ea_write+0x10/0x10 [ 348.531565][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.547707][ T31] ? rcu_is_watching+0x15/0xb0 [ 348.562055][ T31] ? __jfs_setxattr+0x76e/0x1120 [ 348.567632][ T31] __jfs_setxattr+0x908/0x1120 [ 348.578342][ T31] ? __pfx___jfs_setxattr+0x10/0x10 [ 348.588184][ T31] ? rwsem_down_write_slowpath+0x7ec/0x1030 [ 348.602226][ T31] __jfs_xattr_set+0xda/0x170 [ 348.612324][ T31] ? __pfx___jfs_xattr_set+0x10/0x10 [ 348.617640][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [pid 7404] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7400] <... close resumed>) = 0 [pid 7400] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7399] <... futex resumed>) = 0 [pid 7399] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7399] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7400] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7400] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7400] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7399] <... futex resumed>) = 0 [pid 7399] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7399] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7400] <... futex resumed>) = 0 [pid 7400] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7400] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7399] <... futex resumed>) = 0 [pid 7400] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7399] exit_group(0 [pid 7400] <... futex resumed>) = ? [pid 7399] <... exit_group resumed>) = ? [pid 7400] +++ exited with 0 +++ [pid 7399] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7399, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 348.634056][ T31] ? xattr_full_name+0x6f/0x90 [ 348.649442][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.657790][ T31] ? jfs_xattr_set+0x33/0x60 [ 348.669006][ T31] ? __pfx_jfs_xattr_set+0x10/0x10 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7405 attached [pid 7405] set_robust_list(0x55556c2036a0, 24 [pid 5872] <... clone resumed>, child_tidptr=0x55556c203690) = 7405 [pid 7405] <... set_robust_list resumed>) = 0 [pid 7405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7405] setpgid(0, 0) = 0 [pid 7405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7405] write(3, "1000", 4) = 4 [pid 7405] close(3executing program ) = 0 [pid 7405] write(1, "executing program\n", 18) = 18 [pid 7405] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7405] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7405] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7405] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7405] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7402] <... write resumed>) = 16777216 [pid 7405] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7402] munmap(0x7fb71c400000, 138412032 [pid 7405] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7405] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7406]}, 88) = 7406 [pid 7405] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7405] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7405] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7406 attached [pid 7406] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7406] set_robust_list(0x7fb72497a9a0, 24) = 0 [ 348.692280][ T31] __vfs_setxattr+0x43c/0x480 [ 348.697335][ T31] __vfs_setxattr_noperm+0x12d/0x660 [ 348.706673][ T31] vfs_setxattr+0x16b/0x2f0 [ 348.711671][ T31] ? __pfx_vfs_setxattr+0x10/0x10 [ 348.717246][ T31] ? mnt_get_write_access+0x223/0x2a0 [ 348.723149][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.729328][ T31] filename_setxattr+0x274/0x600 [pid 7406] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7406] memfd_create("syzkaller", 0) = 3 [pid 7406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7402] <... munmap resumed>) = 0 [pid 7402] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 348.739397][ T31] ? __pfx_filename_setxattr+0x10/0x10 [ 348.752137][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.777794][ T31] ? getname_flags+0x1e5/0x540 [ 348.786175][ T31] path_setxattrat+0x364/0x3a0 [ 348.790988][ T31] ? __pfx_path_setxattrat+0x10/0x10 [ 348.807257][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.822068][ T31] __x64_sys_lsetxattr+0xbf/0xe0 [ 348.827044][ T31] do_syscall_64+0xfa/0x3b0 [pid 7402] close(3 [pid 7404] <... write resumed>) = 16777216 [ 348.839785][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 348.852042][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 348.862256][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 348.867919][ T31] ? exc_page_fault+0x9f/0xf0 [pid 7404] munmap(0x7fb71c400000, 138412032) = 0 [pid 7406] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7404] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [ 348.890524][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 348.897182][ T31] RIP: 0033:0x7fb7249c57b9 [ 348.901626][ T31] RSP: 002b:00007fb724959218 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd [ 348.922591][ T31] RAX: ffffffffffffffda RBX: 00007fb724a525f8 RCX: 00007fb7249c57b9 [ 348.942273][ T31] RDX: 0000000000000000 RSI: 00002000000021c0 RDI: 0000200000000000 [ 348.961238][ T31] RBP: 00007fb724a525f0 R08: 0000000000000000 R09: 0000000000000000 [ 348.972038][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000001c0 [ 348.980086][ T31] R13: 0030656c69662f2e R14: 0000200000000180 R15: 0072657070752e79 [pid 7404] close(3 [pid 7402] <... close resumed>) = 0 [pid 7402] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7402] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7401] <... futex resumed>) = 0 [ 348.998519][ T31] [ 349.001704][ T31] INFO: task syz-executor957:5898 blocked for more than 144 seconds. [ 349.023525][ T31] Not tainted 6.16.0-rc6-syzkaller-00205-gd786aba32000 #0 [pid 7401] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7402] <... futex resumed>) = 0 [pid 7401] <... futex resumed>) = 1 [pid 7402] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7401] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7402] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7401] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7402] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7401] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7402] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7401] <... futex resumed>) = 0 [pid 7402] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7401] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7402] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7401] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7402] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7401] exit_group(0 [pid 7402] <... futex resumed>) = ? [pid 7401] <... exit_group resumed>) = ? [pid 7402] +++ exited with 0 +++ [pid 7401] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7401, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=32 /* 0.32 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7407 ./strace-static-x86_64: Process 7407 attached [pid 7407] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7407] setpgid(0, 0) = 0 [pid 7407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7407] write(3, "1000", 4) = 4 executing program [pid 7407] close(3) = 0 [pid 7407] write(1, "executing program\n", 18) = 18 [pid 7407] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7407] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7407] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7407] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7407] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7407] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7408]}, 88) = 7408 [pid 7407] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7407] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7407] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7408 attached [ 349.042042][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 349.051178][ T31] task:syz-executor957 state:D stack:28136 pid:5898 tgid:5879 ppid:5877 task_flags:0x400140 flags:0x00004006 [ 349.082069][ T31] Call Trace: [ 349.085377][ T31] [ 349.088329][ T31] __schedule+0x16f5/0x4d00 [pid 7408] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7404] <... close resumed>) = 0 [pid 7408] <... rseq resumed>) = 0 [pid 7404] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7404] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7408] set_robust_list(0x7fb72497a9a0, 24 [pid 7403] <... futex resumed>) = 0 [pid 7408] <... set_robust_list resumed>) = 0 [pid 7403] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7404] <... futex resumed>) = 0 [pid 7408] rt_sigprocmask(SIG_SETMASK, [], [pid 7403] <... futex resumed>) = 1 [pid 7404] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7404] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7404] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7408] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7403] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7408] memfd_create("syzkaller", 0 [pid 7403] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7403] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7408] <... memfd_create resumed>) = 3 [pid 7404] <... futex resumed>) = 0 [pid 7403] <... futex resumed>) = 1 [pid 7404] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7404] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7404] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7403] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 349.112103][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.117988][ T31] ? __lock_acquire+0xab9/0xd20 [ 349.123225][ T31] ? schedule+0x165/0x360 [ 349.127578][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.134994][ T31] ? __pfx___schedule+0x10/0x10 [ 349.140362][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.149199][ T31] ? schedule+0x91/0x360 [ 349.154695][ T31] schedule+0x165/0x360 [pid 7408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7403] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7403] exit_group(0 [pid 7404] <... futex resumed>) = ? [pid 7403] <... exit_group resumed>) = ? [pid 7404] +++ exited with 0 +++ [pid 7403] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7403, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [ 349.159344][ T31] io_schedule+0x80/0xd0 [pid 5869] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7409 attached [pid 7409] set_robust_list(0x55556c2036a0, 24) = 0 [pid 5869] <... clone resumed>, child_tidptr=0x55556c203690) = 7409 [pid 7409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7409] setpgid(0, 0) = 0 [pid 7409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7409] write(3, "1000", 4) = 4 executing program [pid 7409] close(3) = 0 [pid 7409] write(1, "executing program\n", 18) = 18 [pid 7409] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7409] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7409] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7409] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7409] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7409] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7410 attached => {parent_tid=[7410]}, 88) = 7410 [pid 7409] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7409] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7409] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 349.192072][ T31] lock_metapage+0x1f3/0x400 [ 349.196715][ T31] ? lock_metapage+0x10b/0x400 [ 349.201513][ T31] ? __pfx_lock_metapage+0x10/0x10 [ 349.222086][ T31] ? __pfx_default_wake_function+0x10/0x10 [ 349.228288][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [pid 7410] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053 [pid 7406] <... write resumed>) = 16777216 [pid 7410] <... rseq resumed>) = 0 [pid 7410] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7410] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7406] munmap(0x7fb71c400000, 138412032 [pid 7410] memfd_create("syzkaller", 0) = 3 [pid 7410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [pid 7406] <... munmap resumed>) = 0 [pid 7406] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 349.240096][ T31] ? __filemap_get_folio+0x79f/0xaf0 [ 349.245624][ T31] __get_metapage+0x497/0xde0 [ 349.265092][ T31] ea_write+0x5e6/0xdd0 [ 349.269313][ T31] ? __pfx_ea_write+0x10/0x10 [ 349.279715][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.285581][ T31] ? rcu_is_watching+0x15/0xb0 [pid 7406] close(3 [ 349.312131][ T31] ? __jfs_setxattr+0x76e/0x1120 [ 349.317137][ T31] __jfs_setxattr+0x908/0x1120 [ 349.321951][ T31] ? __pfx___jfs_setxattr+0x10/0x10 [ 349.352042][ T31] ? rwsem_down_write_slowpath+0x7ec/0x1030 [ 349.362130][ T31] __jfs_xattr_set+0xda/0x170 [ 349.366844][ T31] ? __pfx___jfs_xattr_set+0x10/0x10 [ 349.383867][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.389536][ T31] ? xattr_full_name+0x6f/0x90 [pid 7408] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 349.412044][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.422121][ T31] ? jfs_xattr_set+0x33/0x60 [ 349.426737][ T31] ? __pfx_jfs_xattr_set+0x10/0x10 [ 349.442088][ T31] __vfs_setxattr+0x43c/0x480 [ 349.452552][ T31] __vfs_setxattr_noperm+0x12d/0x660 [pid 7410] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7406] <... close resumed>) = 0 [pid 7406] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7406] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7405] <... futex resumed>) = 0 [pid 7405] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7406] <... futex resumed>) = 0 [pid 7405] <... futex resumed>) = 1 [pid 7406] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7405] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7406] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7406] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7406] <... futex resumed>) = 0 [pid 7405] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7406] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7405] <... futex resumed>) = 0 [pid 7406] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7405] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7406] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7406] <... futex resumed>) = 0 [pid 7405] exit_group(0) = ? [pid 7406] +++ exited with 0 +++ [pid 7405] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7405, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=40 /* 0.40 s */} --- [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c203690) = 7411 ./strace-static-x86_64: Process 7411 attached [pid 7411] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7411] setpgid(0, 0) = 0 [pid 7411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7411] write(3, "1000", 4) = 4 [pid 7411] close(3) = 0 executing program [pid 7411] write(1, "executing program\n", 18) = 18 [ 349.468807][ T31] vfs_setxattr+0x16b/0x2f0 [ 349.474117][ T31] ? __pfx_vfs_setxattr+0x10/0x10 [ 349.483609][ T31] ? mnt_get_write_access+0x223/0x2a0 [ 349.489110][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.507477][ T31] filename_setxattr+0x274/0x600 [pid 7411] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7411] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7411] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7411] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7411] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7412 attached => {parent_tid=[7412]}, 88) = 7412 [pid 7411] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7411] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7411] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7412] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7412] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7412] memfd_create("syzkaller", 0) = 3 [pid 7412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [ 349.521304][ T31] ? __pfx_filename_setxattr+0x10/0x10 [ 349.534735][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.541332][ T31] ? getname_flags+0x1e5/0x540 [ 349.548318][ T31] path_setxattrat+0x364/0x3a0 [ 349.555228][ T31] ? __pfx_path_setxattrat+0x10/0x10 [ 349.560591][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.567515][ T31] __x64_sys_lsetxattr+0xbf/0xe0 [ 349.572542][ T31] do_syscall_64+0xfa/0x3b0 [ 349.582093][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 349.587319][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 349.612044][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 349.622098][ T31] ? exc_page_fault+0x9f/0xf0 [ 349.626807][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 349.642471][ T31] RIP: 0033:0x7fb7249c57b9 [ 349.652042][ T31] RSP: 002b:00007fb724959218 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd [pid 7408] <... write resumed>) = 16777216 [ 349.672255][ T31] RAX: ffffffffffffffda RBX: 00007fb724a525f8 RCX: 00007fb7249c57b9 [ 349.692883][ T31] RDX: 0000000000000000 RSI: 00002000000021c0 RDI: 0000200000000000 [ 349.700885][ T31] RBP: 00007fb724a525f0 R08: 0000000000000000 R09: 0000000000000000 [pid 7408] munmap(0x7fb71c400000, 138412032 [pid 7412] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7408] <... munmap resumed>) = 0 [pid 7408] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7410] <... write resumed>) = 16777216 [pid 7408] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 7410] munmap(0x7fb71c400000, 138412032 [ 349.722071][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000001c0 [ 349.733462][ T31] R13: 0030656c69662f2e R14: 0000200000000180 R15: 0072657070752e79 [ 349.741599][ T31] [ 349.753284][ T31] [ 349.753284][ T31] Showing all locks held in the system: [ 349.761903][ T31] 4 locks held by kworker/u8:1/13: [pid 7408] close(3 [pid 7410] <... munmap resumed>) = 0 [ 349.771006][ T31] #0: ffff88801ba85148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 [ 349.784796][ T31] #1: ffffc90000127bc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 [ 349.798468][ T31] #2: ffff88807e8460e0 (&type->s_umount_key#42){.+.+}-{4:4}, at: super_trylock_shared+0x20/0xf0 [ 349.810683][ T31] #3: ffff88807f661d70 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530 [pid 7410] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [ 349.822241][ T31] 1 lock held by khungtaskd/31: [ 349.827103][ T31] #0: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 349.839132][ T31] 4 locks held by kworker/u8:2/36: [ 349.849888][ T31] #0: ffff88801ba85148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 [pid 7410] close(3 [pid 7408] <... close resumed>) = 0 [ 349.902110][ T31] #1: ffffc90000ac7bc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 [ 349.942042][ T31] #2: ffff888023c940e0 (&type->s_umount_key#42){.+.+}-{4:4}, at: super_trylock_shared+0x20/0xf0 [pid 7408] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7407] <... futex resumed>) = 0 [pid 7408] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0 [pid 7407] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7408] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7408] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 7407] <... futex resumed>) = 0 [pid 7408] <... futex resumed>) = 0 [pid 7408] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7407] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7407] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7408] <... futex resumed>) = 0 [pid 7407] <... futex resumed>) = 1 [pid 7408] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0 [pid 7407] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7408] <... lsetxattr resumed>) = -1 ENOENT (No such file or directory) [pid 7408] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7407] <... futex resumed>) = 0 [pid 7408] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7407] exit_group(0 [pid 7408] <... futex resumed>) = ? [pid 7407] <... exit_group resumed>) = ? [pid 7408] +++ exited with 0 +++ [pid 7407] +++ exited with 0 +++ [pid 5868] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7407, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=39 /* 0.39 s */} --- [pid 5868] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7413 attached , child_tidptr=0x55556c203690) = 7413 [pid 7413] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7413] setpgid(0, 0) = 0 [pid 7413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7413] write(3, "1000", 4) = 4 executing program [pid 7413] close(3) = 0 [pid 7413] write(1, "executing program\n", 18) = 18 [pid 7413] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7413] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7413] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7413] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [pid 7413] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7413] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7413] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0} => {parent_tid=[7414]}, 88) = 7414 [pid 7413] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7413] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7413] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7414 attached [pid 7414] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7414] set_robust_list(0x7fb72497a9a0, 24) = 0 [pid 7414] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7414] memfd_create("syzkaller", 0) = 3 [pid 7414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [ 349.962066][ T31] #3: ffff88807f661438 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530 [ 349.982049][ T31] 4 locks held by kworker/u8:5/187: [ 349.987854][ T31] #0: ffff88801ba85148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 [pid 7412] <... write resumed>) = 16777216 [ 350.042046][ T31] #1: ffffc90002e37bc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 [ 350.064617][ T31] #2: ffff888033b760e0 (&type->s_umount_key#42){.+.+}-{4:4}, at: super_trylock_shared+0x20/0xf0 [pid 7412] munmap(0x7fb71c400000, 138412032) = 0 [pid 7410] <... close resumed>) = 0 [pid 7412] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 7412] close(3 [pid 7410] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7409] <... futex resumed>) = 0 [ 350.082407][ T31] #3: ffff88807f6926a8 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530 [ 350.102115][ T31] 2 locks held by kworker/u8:7/1094: [ 350.107426][ T31] #0: ffff8880b8739f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [pid 7409] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7410] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7409] <... futex resumed>) = 0 [pid 7410] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7409] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7410] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7409] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7409] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7410] <... futex resumed>) = 0 [pid 7410] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7410] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7409] <... futex resumed>) = 0 [pid 7410] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7409] exit_group(0 [pid 7410] <... futex resumed>) = ? [pid 7409] <... exit_group resumed>) = ? [pid 7410] +++ exited with 0 +++ [pid 7409] +++ exited with 0 +++ [pid 5869] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7409, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=33 /* 0.33 s */} --- [pid 5869] restart_syscall(<... resuming interrupted clone ...>executing program [pid 7414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5869] <... restart_syscall resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7415 attached , child_tidptr=0x55556c203690) = 7415 [pid 7415] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7415] setpgid(0, 0) = 0 [pid 7415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7415] write(3, "1000", 4) = 4 [pid 7415] close(3) = 0 [pid 7415] write(1, "executing program\n", 18) = 18 [pid 7415] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7415] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7249eb6a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7249dcd50}, NULL, 8) = 0 [pid 7415] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb72495a000 [ 350.132042][ T31] #1: ffff8880b8723f08 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x39a/0x6d0 [ 350.160717][ T31] 2 locks held by getty/5602: [ 350.166114][ T31] #0: ffff88803457a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [pid 7415] mprotect(0x7fb72495b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7415] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7415] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb72497a990, parent_tid=0x7fb72497a990, exit_signal=0, stack=0x7fb72495a000, stack_size=0x20300, tls=0x7fb72497a6c0}./strace-static-x86_64: Process 7416 attached [pid 7416] rseq(0x7fb72497afe0, 0x20, 0, 0x53053053) = 0 [pid 7415] <... clone3 resumed> => {parent_tid=[7416]}, 88) = 7416 [pid 7416] set_robust_list(0x7fb72497a9a0, 24 [pid 7415] rt_sigprocmask(SIG_SETMASK, [], [pid 7416] <... set_robust_list resumed>) = 0 [pid 7415] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7416] rt_sigprocmask(SIG_SETMASK, [], [pid 7415] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 7416] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7415] <... futex resumed>) = 0 [pid 7416] memfd_create("syzkaller", 0 [pid 7415] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7416] <... memfd_create resumed>) = 3 [pid 7416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb71c400000 [ 350.187163][ T31] #1: ffffc900036e32f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 350.212051][ T31] 4 locks held by syz-executor957/5896: [ 350.217626][ T31] #0: ffff88807e846428 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 350.242106][ T31] #1: ffff88807f662120 (&type->i_mutex_dir_key#6){++++}-{4:4}, at: vfs_setxattr+0x144/0x2f0 [ 350.262101][ T31] #2: ffff88807f661d70 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: __jfs_xattr_set+0xb9/0x170 [ 350.282335][ T31] #3: ffff88807f661e08 (&jfs_ip->xattr_sem){+.+.}-{4:4}, at: __jfs_setxattr+0xe1/0x1120 [ 350.302355][ T31] 4 locks held by syz-executor957/5895: [ 350.307946][ T31] #0: ffff888023c94428 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 350.332967][ T31] #1: ffff88807f6617e8 (&type->i_mutex_dir_key#6){++++}-{4:4}, at: vfs_setxattr+0x144/0x2f0 [pid 7412] <... close resumed>) = 0 [pid 7416] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7412] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7412] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7411] <... futex resumed>) = 0 [pid 7411] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7412] <... futex resumed>) = 0 [pid 7412] lsetxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7412] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7412] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7411] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7411] futex(0x7fb724a525e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7412] <... futex resumed>) = 0 [pid 7412] lsetxattr("./file0", "trusted.overlay.opaque", NULL, 0, 0) = -1 ENOENT (No such file or directory) [pid 7412] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7412] futex(0x7fb724a525e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7411] futex(0x7fb724a525ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 7411] exit_group(0) = ? [pid 7412] <... futex resumed>) = ? [pid 7412] +++ exited with 0 +++ [pid 7411] +++ exited with 0 +++ [pid 5872] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7411, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5872] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 350.362107][ T31] #2: ffff88807f661438 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: __jfs_xattr_set+0xb9/0x170 [ 350.372650][ T31] #3: ffff88807f6614d0 (&jfs_ip->xattr_sem){+.+.}-{4:4}, at: __jfs_setxattr+0xe1/0x1120 [ 350.385900][ T31] 4 locks held by syz-executor957/5898: [ 350.391831][ T31] #0: ffff888033b76428 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7417 attached , child_tidptr=0x55556c203690) = 7417 [pid 7417] set_robust_list(0x55556c2036a0, 24) = 0 [pid 7417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7417] setpgid(0, 0) = 0 [pid 7417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7417] write(3, "1000", 4) = 4 [pid 7417] close(3) = 0 [ 350.402517][ T31] #1: ffff88807f692a58 (&type->i_mutex_dir_key#6){++++}-{4:4}, at: vfs_setxattr+0x144/0x2f0 [ 350.413410][ T31] #2: ffff88807f6926a8 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: __jfs_xattr_set+0xb9/0x170 [ 350.424536][ T31] #3: ffff88807f692740 (&jfs_ip->xattr_sem){+.+.}-{4:4}, at: __jfs_setxattr+0xe1/0x1120 [ 350.435567][ T31] 2 locks held by syz-executor957/7414: [ 350.444700][ T31] 2 locks held by syz-executor957/7416: [ 350.450583][ T31] executing program [pid 7417] write(1, "executing program\n", 18) = 18 [ 350.457007][ T31] ============================================= [ 350.457007][ T31] [ 350.466818][ T31] NMI backtrace for cpu 1 [ 350.466841][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-syzkaller-00205-gd786aba32000 #0 PREEMPT(full) [ 350.466873][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 350.466890][ T31] Call Trace: [ 350.466900][ T31] [ 350.466910][ T31] dump_stack_lvl+0x189/0x250 [ 350.466945][ T31] ? __wake_up_klogd+0xd9/0x110 [ 350.466982][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 350.467014][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 350.467045][ T31] ? __pfx__printk+0x10/0x10 [ 350.467096][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 350.467139][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 350.467174][ T31] ? _printk+0xcf/0x120 [ 350.467214][ T31] ? __pfx__printk+0x10/0x10 [ 350.467252][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 350.467280][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 350.467323][ T31] watchdog+0xfee/0x1030 [pid 7417] futex(0x7fb724a525ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7414] <... write resumed>) = 16777216 [pid 7414] munmap(0x7fb71c400000, 138412032) = 0 [pid 7414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 350.467349][ T31] ? watchdog+0x1de/0x1030 [ 350.467441][ T31] kthread+0x711/0x8a0 [ 350.467482][ T31] ? __pfx_watchdog+0x10/0x10 [ 350.467504][ T31] ? __pfx_kthread+0x10/0x10 [ 350.467537][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 350.467571][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 350.467594][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 350.467623][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 350.467648][ T31] ? __pfx_kthread+0x10/0x10 [ 350.467686][ T31] ret_from_fork+0x3fc/0x770 [pid 7414] close(3 [ 350.467716][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 350.467750][ T31] ? __switch_to_asm+0x39/0x70 [ 350.467783][ T31] ? __switch_to_asm+0x33/0x70 [ 350.467815][ T31] ? __pfx_kthread+0x10/0x10 [ 350.467857][ T31] ret_from_fork_asm+0x1a/0x30 [ 350.467909][ T31] [ 350.467933][ T31] Sending NMI from CPU 1 to CPUs 0: [ 350.645448][ C0] NMI backtrace for cpu 0 [ 350.645466][ C0] CPU: 0 UID: 0 PID: 5863 Comm: strace-static-x Not tainted 6.16.0-rc6-syzkaller-00205-gd786aba32000 #0 PREEMPT(full) [ 350.645493][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 350.645506][ C0] RIP: 0010:match_held_lock+0x7d/0xc0 [ 350.645534][ C0] Code: f0 82 48 93 48 29 d0 48 c1 f8 03 48 ba 29 5c 8f c2 f5 28 5c 8f 48 0f af d0 bb 01 00 00 00 48 39 ca 74 02 31 db 89 d8 5b 41 5e 79 c1 a2 f5 cc 90 e8 27 75 4f f9 85 c0 74 22 83 3d 90 87 34 04 [ 350.645552][ C0] RSP: 0018:ffffc9000406f930 EFLAGS: 00000046 [ 350.645571][ C0] RAX: 0000000000000001 RBX: 0000000000000000 RCX: eaf2d6a3ec0d5b00 [ 350.645596][ C0] RDX: 0000000000000001 RSI: ffff8880b8639f98 RDI: ffff888029f20af0 [ 350.645612][ C0] RBP: ffff888029f20000 R08: 0000000000000003 R09: 0000000000000004 [ 350.645626][ C0] R10: dffffc0000000000 R11: fffff5200080df18 R12: 0000000000000000 [ 350.645641][ C0] R13: 0000000000000046 R14: ffff8880b8639f98 R15: ffff888029f20af0 [ 350.645659][ C0] FS: 00000000235ac3c0(0000) GS:ffff888125c23000(0000) knlGS:0000000000000000 [ 350.645677][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 350.645692][ C0] CR2: 00007ffc002e2ab8 CR3: 0000000075e13000 CR4: 0000000000350ef0 [ 350.645709][ C0] Call Trace: [ 350.645717][ C0] [ 350.645725][ C0] lock_pin_lock+0xac/0x190 [ 350.645752][ C0] __schedule+0x38d/0x4d00 [ 350.645774][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 350.645802][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 350.645828][ C0] ? wait_consider_task+0x990/0x2e60 [ 350.645853][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 350.645879][ C0] ? schedule+0x165/0x360 [ 350.645898][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 350.645923][ C0] ? __lock_acquire+0xab9/0xd20 [ 350.645946][ C0] ? __pfx___schedule+0x10/0x10 [ 350.645973][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 350.645999][ C0] ? schedule+0x91/0x360 [ 350.646021][ C0] schedule+0x165/0x360 [ 350.646042][ C0] do_wait+0x299/0x520 [ 350.646076][ C0] ? do_wait+0x18e/0x520 [ 350.646111][ C0] kernel_wait4+0x1af/0x280 [ 350.646146][ C0] ? __pfx_kernel_wait4+0x10/0x10 [ 350.646183][ C0] ? __pfx_child_wait_callback+0x10/0x10 [ 350.646212][ C0] __x64_sys_wait4+0x133/0x1e0 [ 350.646248][ C0] ? __pfx___x64_sys_wait4+0x10/0x10 [ 350.646291][ C0] ? __pfx___se_sys_ptrace+0x10/0x10 [ 350.646318][ C0] ? rcu_is_watching+0x15/0xb0 [ 350.646347][ C0] ? do_syscall_64+0xbe/0x3b0 [ 350.646375][ C0] do_syscall_64+0xfa/0x3b0 [ 350.646400][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 350.646421][ C0] ? asm_sysvec_call_function_single+0x1a/0x20 [ 350.646447][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 350.646468][ C0] RIP: 0033:0x4d6ad6 [ 350.646484][ C0] Code: 00 00 00 90 31 c9 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 49 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 90 48 83 ec 28 89 54 24 14 48 89 74 24 [ 350.646501][ C0] RSP: 002b:00007ffee305b6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000003d [ 350.646522][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004d6ad6 [ 350.646536][ C0] RDX: 0000000040000000 RSI: 00007ffee305b6fc RDI: 00000000ffffffff [ 350.646551][ C0] RBP: 0000000000000000 R08: 0000000000000017 R09: 0000000000000000 [ 350.646564][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000235b3520 [ 350.646577][ C0] R13: 00007ffee305b6fc R14: 00000000235adce0 R15: 000000000063f160 [ 350.646606][ C0] [ 350.647820][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 350.991155][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-syzkaller-00205-gd786aba32000 #0 PREEMPT(full) [ 351.002959][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 351.013009][ T31] Call Trace: [ 351.016283][ T31] [ 351.019208][ T31] dump_stack_lvl+0x99/0x250 [ 351.023811][ T31] ? __asan_memcpy+0x40/0x70 [ 351.028410][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 351.033615][ T31] ? __pfx__printk+0x10/0x10 [ 351.038226][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 351.043865][ T31] panic+0x2db/0x790 [ 351.047764][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 351.053404][ T31] ? __pfx_panic+0x10/0x10 [ 351.057821][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 351.063464][ T31] ? nmi_backtrace_stall_check+0x433/0x440 [ 351.069279][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 351.074914][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 351.080301][ T31] ? nmi_trigger_cpumask_backtrace+0x2b6/0x300 [ 351.086470][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 351.092111][ T31] watchdog+0x102d/0x1030 [ 351.096442][ T31] ? watchdog+0x1de/0x1030 [ 351.100867][ T31] kthread+0x711/0x8a0 [ 351.105122][ T31] ? __pfx_watchdog+0x10/0x10 [ 351.109795][ T31] ? __pfx_kthread+0x10/0x10 [ 351.114394][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 351.120033][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 351.125230][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 351.130864][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 351.136061][ T31] ? __pfx_kthread+0x10/0x10 [ 351.140660][ T31] ret_from_fork+0x3fc/0x770 [ 351.145254][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 351.150370][ T31] ? __switch_to_asm+0x39/0x70 [ 351.155141][ T31] ? __switch_to_asm+0x33/0x70 [ 351.159910][ T31] ? __pfx_kthread+0x10/0x10 [ 351.164513][ T31] ret_from_fork_asm+0x1a/0x30 [ 351.169300][ T31] [ 351.172534][ T31] Kernel Offset: disabled [ 351.176861][ T31] Rebooting in 86400 seconds..