./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2202330744 <...> Warning: Permanently added '10.128.1.148' (ED25519) to the list of known hosts. execve("./syz-executor2202330744", ["./syz-executor2202330744"], 0x7ffc7392ec30 /* 10 vars */) = 0 brk(NULL) = 0x55555880c000 brk(0x55555880cd00) = 0x55555880cd00 arch_prctl(ARCH_SET_FS, 0x55555880c380) = 0 set_tid_address(0x55555880c650) = 5847 set_robust_list(0x55555880c660, 24) = 0 rseq(0x55555880cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2202330744", 4096) = 28 getrandom("\x53\x9b\x67\x03\x3d\x65\x17\x46", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555880cd00 brk(0x55555882dd00) = 0x55555882dd00 brk(0x55555882e000) = 0x55555882e000 mprotect(0x7fde44379000, 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./strace-static-x86_64: Process 5848 attached , child_tidptr=0x55555880c650) = 5848 [pid 5848] set_robust_list(0x55555880c660, 24) = 0 [pid 5847] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "10000000000", 11) = 11 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "20", 2) = 2 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1", 1) = 1 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "0", 1) = 1 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "0", 1) = 1 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1", 1) = 1 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "100", 3) = 3 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "0", 1) = 1 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "0", 1) = 1 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "7 4 1 3", 7) = 7 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1", 1) = 1 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1", 1) = 1 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "0", 1) = 1 [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "5848", 4) = 4 [pid 5847] close(3) = 0 [pid 5847] kill(5848, SIGKILL) = 0 [pid 5848] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5848, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached [pid 5849] set_robust_list(0x55555880c660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55555880c650) = 5849 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5849] getppid() = 0 [pid 5849] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5849] unshare(CLONE_NEWNS) = 0 [pid 5849] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5849] unshare(CLONE_NEWIPC) = 0 [pid 5849] unshare(CLONE_NEWCGROUP) = 0 [pid 5849] unshare(CLONE_NEWUTS) = 0 [pid 5849] unshare(CLONE_SYSVSEM) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "16777216", 8) = 8 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "536870912", 9) = 9 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "8192", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5849] close(3) = 0 [pid 5849] getpid() = 1 [pid 5849] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5860] set_robust_list(0x55555880c660, 24) = 0 [pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55555880c650) = 2 [pid 5860] <... prctl resumed>) = 0 [pid 5860] setpgid(0, 0) = 0 [pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5860] write(3, "1000", 4) = 4 [pid 5860] close(3) = 0 [pid 5860] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5860] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5860] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5860] read(200, 0x7ffd23e8e760, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5860] write(1, "executing program\n", 18executing program ) = 18 [pid 5860] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5860] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 204 [pid 5860] write(200, "\xaa\xaa\xaa\xaa\xaa\xaa\xff\xff\xff\xff\xff\xff\x08\x00\x45\xec\x00\x28\x00\x00\x00\x00\x00\x06\xb9\xe5\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4e\x29\x44\x43\x42\x41\x44\x43\x42\x41\x50\x16\x00\x01\x54\x9c\x00\x00", 54) = 54 [pid 5860] close(3) = 0 [pid 5860] close(4) = -1 EBADF (Bad file descriptor) [pid 5860] close(5) = -1 EBADF (Bad file descriptor) [pid 5860] close(6) = -1 EBADF (Bad file descriptor) [pid 5860] close(7) = -1 EBADF (Bad file descriptor) [pid 5860] close(8) = -1 EBADF (Bad file descriptor) [pid 5860] close(9) = -1 EBADF (Bad file descriptor) [pid 5860] close(10) = -1 EBADF (Bad file descriptor) [pid 5860] close(11) = -1 EBADF (Bad file descriptor) [pid 5860] close(12) = -1 EBADF (Bad file descriptor) [pid 5860] close(13) = -1 EBADF (Bad file descriptor) [pid 5860] close(14) = -1 EBADF (Bad file descriptor) [pid 5860] close(15) = -1 EBADF (Bad file descriptor) [pid 5860] close(16) = -1 EBADF (Bad file descriptor) [pid 5860] close(17) = -1 EBADF (Bad file descriptor) [pid 5860] close(18) = -1 EBADF (Bad file descriptor) [pid 5860] close(19) = -1 EBADF (Bad file descriptor) [pid 5860] close(20) = -1 EBADF (Bad file descriptor) [pid 5860] close(21) = -1 EBADF (Bad file descriptor) [pid 5860] close(22) = -1 EBADF (Bad file descriptor) [pid 5860] close(23) = -1 EBADF (Bad file descriptor) [pid 5860] close(24) = -1 EBADF (Bad file descriptor) [pid 5860] close(25) = -1 EBADF (Bad file descriptor) [pid 5860] close(26) = -1 EBADF (Bad file descriptor) [pid 5860] close(27) = -1 EBADF (Bad file descriptor) [pid 5860] close(28) = -1 EBADF (Bad file descriptor) [pid 5860] close(29) = -1 EBADF (Bad file descriptor) [pid 5860] exit_group(0) = ? [pid 5860] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5861 attached [pid 5861] set_robust_list(0x55555880c660, 24) = 0 [pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55555880c650) = 3 [pid 5861] <... prctl resumed>) = 0 [pid 5861] setpgid(0, 0) = 0 [pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5861] write(3, "1000", 4) = 4 executing program [pid 5861] close(3) = 0 [pid 5861] read(200, 0x7ffd23e8e760, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5861] write(1, "executing program\n", 18) = 18 [pid 5861] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5861] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 204 [pid 5861] write(200, "\xaa\xaa\xaa\xaa\xaa\xaa\xff\xff\xff\xff\xff\xff\x08\x00\x45\xec\x00\x28\x00\x00\x00\x00\x00\x06\xb9\xe5\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4e\x29\x44\x43\x42\x41\x44\x43\x42\x41\x50\x16\x00\x01\x54\x9c\x00\x00", 54) = 54 [pid 5861] close(3) = 0 [pid 5861] close(4) = -1 EBADF (Bad file descriptor) [pid 5861] close(5) = -1 EBADF (Bad file descriptor) [pid 5861] close(6) = -1 EBADF (Bad file descriptor) [pid 5861] close(7) = -1 EBADF (Bad file descriptor) [pid 5861] close(8) = -1 EBADF (Bad file descriptor) [pid 5861] close(9) = -1 EBADF (Bad file descriptor) [pid 5861] close(10) = -1 EBADF (Bad file descriptor) [pid 5861] close(11) = -1 EBADF (Bad file descriptor) [pid 5861] close(12) = -1 EBADF (Bad file descriptor) [pid 5861] close(13) = -1 EBADF (Bad file descriptor) [pid 5861] close(14) = -1 EBADF (Bad file descriptor) [pid 5861] close(15) = -1 EBADF (Bad file descriptor) [pid 5861] close(16) = -1 EBADF (Bad file descriptor) [pid 5861] close(17) = -1 EBADF (Bad file descriptor) [pid 5861] close(18) = -1 EBADF (Bad file descriptor) [pid 5861] close(19) = -1 EBADF (Bad file descriptor) [pid 5861] close(20) = -1 EBADF (Bad file descriptor) [pid 5861] close(21) = -1 EBADF (Bad file descriptor) [pid 5861] close(22) = -1 EBADF (Bad file descriptor) [pid 5861] close(23) = -1 EBADF (Bad file descriptor) [pid 5861] close(24) = -1 EBADF (Bad file descriptor) [pid 5861] close(25) = -1 EBADF (Bad file descriptor) [pid 5861] close(26) = -1 EBADF (Bad file descriptor) [pid 5861] close(27) = -1 EBADF (Bad file descriptor) [pid 5861] close(28) = -1 EBADF (Bad file descriptor) [pid 5861] close(29) = -1 EBADF (Bad file descriptor) [ 251.202680][ C0] sched: DL replenish lagged too much [pid 5861] exit_group(0) = ? [pid 5861] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555880c650) = 4 ./strace-static-x86_64: Process 5862 attached [pid 5862] set_robust_list(0x55555880c660, 24) = 0 [pid 5862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5862] setpgid(0, 0) = 0 [pid 5862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] kill(-4, SIGKILL) = 0 [pid 5849] kill(4, SIGKILL) = 0 [pid 5862] <... openat resumed>) = ? [pid 5862] +++ killed by SIGKILL +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=4, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=3 /* 0.03 s */} --- [ 506.934898][ T31] INFO: task kworker/1:3:5812 blocked for more than 161 seconds. [ 506.984535][ T31] Not tainted 6.15.0-rc4-syzkaller-00147-gebd297a2affa #0 [ 506.992230][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555880c650) = 5 ./strace-static-x86_64: Process 5865 attached