./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3119197105 <...> [ 91.111421][ T43] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.10.0' (ED25519) to the list of known hosts. execve("./syz-executor3119197105", ["./syz-executor3119197105"], 0x7ffedd428f80 /* 10 vars */) = 0 brk(NULL) = 0x555583204000 brk(0x555583204d00) = 0x555583204d00 arch_prctl(ARCH_SET_FS, 0x555583204380) = 0 set_tid_address(0x555583204650) = 5852 set_robust_list(0x555583204660, 24) = 0 rseq(0x555583204ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3119197105", 4096) = 28 getrandom("\x1d\x00\xb3\xc0\x7c\x5f\x16\x48", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555583204d00 brk(0x555583225d00) = 0x555583225d00 brk(0x555583226000) = 0x555583226000 mprotect(0x7fd930e8a000, 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 5853 attached [pid 5853] set_robust_list(0x555583204660, 24 [pid 5852] <... clone resumed>, child_tidptr=0x555583204650) = 5853 [pid 5853] <... set_robust_list resumed>) = 0 [pid 5853] mkdir("./syzkaller.FM27FR", 0700 [pid 5852] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5854 attached , child_tidptr=0x555583204650) = 5854 [pid 5853] <... mkdir resumed>) = 0 [pid 5852] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5854] set_robust_list(0x555583204660, 24) = 0 [pid 5853] chmod("./syzkaller.FM27FR", 0777 [pid 5854] mkdir("./syzkaller.pvtvTk", 0700 [pid 5853] <... chmod resumed>) = 0 [pid 5853] chdir("./syzkaller.FM27FR"./strace-static-x86_64: Process 5855 attached [pid 5854] <... mkdir resumed>) = 0 [pid 5854] chmod("./syzkaller.pvtvTk", 0777 [pid 5853] <... chdir resumed>) = 0 [pid 5852] <... clone resumed>, child_tidptr=0x555583204650) = 5855 [pid 5855] set_robust_list(0x555583204660, 24 [pid 5854] <... chmod resumed>) = 0 [pid 5853] mkdir("./0", 0777 [pid 5852] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5855] <... set_robust_list resumed>) = 0 [pid 5854] chdir("./syzkaller.pvtvTk" [pid 5853] <... mkdir resumed>) = 0 [pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5856 attached [pid 5855] mkdir("./syzkaller.sJOnWK", 0700 [pid 5854] <... chdir resumed>) = 0 [pid 5852] <... clone resumed>, child_tidptr=0x555583204650) = 5856 [pid 5853] <... openat resumed>) = 3 [pid 5852] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5856] set_robust_list(0x555583204660, 24 [pid 5855] <... mkdir resumed>) = 0 [pid 5854] mkdir("./0", 0777 [pid 5853] ioctl(3, LOOP_CLR_FD [pid 5856] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5857 attached [pid 5855] chmod("./syzkaller.sJOnWK", 0777 [pid 5853] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5855] <... chmod resumed>) = 0 [pid 5852] <... clone resumed>, child_tidptr=0x555583204650) = 5857 [pid 5857] set_robust_list(0x555583204660, 24 [pid 5856] mkdir("./syzkaller.VMkjf4", 0700 [pid 5854] <... mkdir resumed>) = 0 [pid 5853] close(3 [pid 5852] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5857] <... set_robust_list resumed>) = 0 [pid 5855] chdir("./syzkaller.sJOnWK" [pid 5854] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5853] <... close resumed>) = 0 [pid 5856] <... mkdir resumed>) = 0 [pid 5854] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5858 attached [pid 5857] mkdir("./syzkaller.xtdsL9", 0700 [pid 5856] chmod("./syzkaller.VMkjf4", 0777 [pid 5855] <... chdir resumed>) = 0 [pid 5853] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5852] <... clone resumed>, child_tidptr=0x555583204650) = 5858 [pid 5856] <... chmod resumed>) = 0 [pid 5855] mkdir("./0", 0777 [pid 5854] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5859 attached [pid 5858] set_robust_list(0x555583204660, 24 [pid 5854] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5858] <... set_robust_list resumed>) = 0 [pid 5855] <... mkdir resumed>) = 0 [pid 5854] close(3 [pid 5859] set_robust_list(0x555583204660, 24 [pid 5858] mkdir("./syzkaller.kvLXbw", 0700 [pid 5857] <... mkdir resumed>) = 0 [pid 5856] chdir("./syzkaller.VMkjf4" [pid 5855] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5854] <... close resumed>) = 0 [pid 5859] <... set_robust_list resumed>) = 0 [pid 5853] <... clone resumed>, child_tidptr=0x555583204650) = 5859 [pid 5856] <... chdir resumed>) = 0 [pid 5859] chdir("./0" [pid 5856] mkdir("./0", 0777 [pid 5855] <... openat resumed>) = 3 [pid 5856] <... mkdir resumed>) = 0 [pid 5854] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5858] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5860 attached [pid 5858] chmod("./syzkaller.kvLXbw", 0777 [pid 5860] set_robust_list(0x555583204660, 24 [pid 5858] <... chmod resumed>) = 0 [pid 5860] <... set_robust_list resumed>) = 0 [pid 5858] chdir("./syzkaller.kvLXbw" [pid 5854] <... clone resumed>, child_tidptr=0x555583204650) = 5860 [pid 5860] chdir("./0" [pid 5859] <... chdir resumed>) = 0 [pid 5858] <... chdir resumed>) = 0 [pid 5857] chmod("./syzkaller.xtdsL9", 0777 [pid 5856] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5855] ioctl(3, LOOP_CLR_FD [pid 5860] <... chdir resumed>) = 0 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5858] mkdir("./0", 0777 [pid 5859] <... prctl resumed>) = 0 [pid 5858] <... mkdir resumed>) = 0 [pid 5857] <... chmod resumed>) = 0 [pid 5856] <... openat resumed>) = 3 [pid 5855] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5859] setpgid(0, 0 [pid 5855] close(3 [pid 5859] <... setpgid resumed>) = 0 [pid 5856] ioctl(3, LOOP_CLR_FD [pid 5855] <... close resumed>) = 0 [pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5856] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5855] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5860] <... prctl resumed>) = 0 [pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5857] chdir("./syzkaller.xtdsL9" [pid 5856] close(3 [pid 5860] setpgid(0, 0 [pid 5858] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5861 attached [pid 5860] <... setpgid resumed>) = 0 [pid 5859] <... openat resumed>) = 3 [pid 5858] <... openat resumed>) = 3 [pid 5857] <... chdir resumed>) = 0 [pid 5856] <... close resumed>) = 0 [pid 5861] set_robust_list(0x555583204660, 24 [pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5859] write(3, "1000", 4 [pid 5858] ioctl(3, LOOP_CLR_FD [pid 5855] <... clone resumed>, child_tidptr=0x555583204650) = 5861 [pid 5861] <... set_robust_list resumed>) = 0 [pid 5860] <... openat resumed>) = 3 [pid 5859] <... write resumed>) = 4 [pid 5857] mkdir("./0", 0777 [pid 5856] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5861] chdir("./0" [pid 5860] write(3, "1000", 4 [pid 5858] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5860] <... write resumed>) = 4 ./strace-static-x86_64: Process 5862 attached [pid 5860] close(3 [pid 5859] close(3 [pid 5860] <... close resumed>) = 0 [pid 5861] <... chdir resumed>) = 0 [pid 5860] symlink("/dev/binderfs", "./binderfs" [pid 5859] <... close resumed>) = 0 [pid 5858] close(3 [pid 5857] <... mkdir resumed>) = 0 [pid 5856] <... clone resumed>, child_tidptr=0x555583204650) = 5862 [pid 5862] set_robust_list(0x555583204660, 24 [pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5860] <... symlink resumed>) = 0 [pid 5859] symlink("/dev/binderfs", "./binderfs" [pid 5858] <... close resumed>) = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5861] <... prctl resumed>) = 0 [pid 5862] <... set_robust_list resumed>) = 0 executing program [pid 5860] write(1, "executing program\n", 18 [pid 5859] <... symlink resumed>) = 0 [pid 5858] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5864 attached [pid 5862] chdir("./0" [pid 5861] setpgid(0, 0 [pid 5859] write(1, "executing program\n", 18 [pid 5857] <... openat resumed>) = 3 [pid 5861] <... setpgid resumed>) = 0 [pid 5859] <... write resumed>) = 18 [pid 5857] ioctl(3, LOOP_CLR_FDexecuting program [pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5857] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5857] close(3 [pid 5862] <... chdir resumed>) = 0 [pid 5860] <... write resumed>) = 18 [pid 5864] set_robust_list(0x555583204660, 24 [pid 5862] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5861] <... openat resumed>) = 3 [pid 5860] memfd_create("syzkaller", 0 [pid 5857] <... close resumed>) = 0 [pid 5864] <... set_robust_list resumed>) = 0 [pid 5862] <... prctl resumed>) = 0 [pid 5860] <... memfd_create resumed>) = 3 [pid 5859] memfd_create("syzkaller", 0 [pid 5857] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5864] chdir("./0" [pid 5862] setpgid(0, 0 [pid 5860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5864] <... chdir resumed>) = 0 [pid 5862] <... setpgid resumed>) = 0 [pid 5861] write(3, "1000", 4 [pid 5860] <... mmap resumed>) = 0x7fd928800000 [pid 5858] <... clone resumed>, child_tidptr=0x555583204650) = 5864 [pid 5864] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5861] <... write resumed>) = 4 [pid 5859] <... memfd_create resumed>) = 3 [pid 5864] <... prctl resumed>) = 0 [pid 5862] <... openat resumed>) = 3 [pid 5861] close(3 [pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5861] <... close resumed>) = 0 [pid 5864] setpgid(0, 0 [pid 5862] write(3, "1000", 4 [pid 5861] symlink("/dev/binderfs", "./binderfs" [pid 5859] <... mmap resumed>) = 0x7fd928800000 ./strace-static-x86_64: Process 5865 attached [pid 5864] <... setpgid resumed>) = 0 [pid 5862] <... write resumed>) = 4 [pid 5864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5862] close(3 [pid 5865] set_robust_list(0x555583204660, 24 [pid 5864] <... openat resumed>) = 3 [pid 5862] <... close resumed>) = 0 [pid 5861] <... symlink resumed>) = 0 [pid 5857] <... clone resumed>, child_tidptr=0x555583204650) = 5865 [pid 5865] <... set_robust_list resumed>) = 0 [pid 5864] write(3, "1000", 4 [pid 5862] symlink("/dev/binderfs", "./binderfs" [pid 5865] chdir("./0" [pid 5864] <... write resumed>) = 4 [pid 5862] <... symlink resumed>) = 0 [pid 5865] <... chdir resumed>) = 0 [pid 5864] close(3executing program [pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5864] <... close resumed>) = 0 [pid 5861] write(1, "executing program\n", 18) = 18 [pid 5865] <... prctl resumed>) = 0 executing program executing program [pid 5864] symlink("/dev/binderfs", "./binderfs" [pid 5861] memfd_create("syzkaller", 0 [pid 5865] setpgid(0, 0) = 0 [pid 5864] <... symlink resumed>) = 0 [pid 5864] write(1, "executing program\n", 18 [pid 5862] write(1, "executing program\n", 18) = 18 [pid 5862] memfd_create("syzkaller", 0 [pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5864] <... write resumed>) = 18 [pid 5862] <... memfd_create resumed>) = 3 [pid 5864] memfd_create("syzkaller", 0 [pid 5862] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd928800000 [pid 5865] <... openat resumed>) = 3 [pid 5864] <... memfd_create resumed>) = 3 [pid 5861] <... memfd_create resumed>) = 3 [pid 5865] write(3, "1000", 4) = 4 [pid 5861] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5861] <... mmap resumed>) = 0x7fd928800000 [pid 5865] close(3) = 0 [pid 5864] <... mmap resumed>) = 0x7fd928800000 [pid 5865] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5865] write(1, "executing program\n", 18) = 18 [pid 5865] memfd_create("syzkaller", 0) = 3 [pid 5865] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd928800000 [pid 5860] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5864] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5862] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5861] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5865] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5860] <... write resumed>) = 16777216 [pid 5864] <... write resumed>) = 16777216 [pid 5862] <... write resumed>) = 16777216 [pid 5860] munmap(0x7fd928800000, 138412032 [pid 5864] munmap(0x7fd928800000, 138412032 [pid 5862] munmap(0x7fd928800000, 138412032 [pid 5861] <... write resumed>) = 16777216 [pid 5859] <... write resumed>) = 16777216 [pid 5859] munmap(0x7fd928800000, 138412032 [pid 5861] munmap(0x7fd928800000, 138412032 [pid 5864] <... munmap resumed>) = 0 [pid 5860] <... munmap resumed>) = 0 [pid 5859] <... munmap resumed>) = 0 [pid 5864] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5860] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5860] <... openat resumed>) = 4 [pid 5859] <... openat resumed>) = 4 [pid 5860] ioctl(4, LOOP_SET_FD, 3 [pid 5864] <... openat resumed>) = 4 [pid 5859] ioctl(4, LOOP_SET_FD, 3 [pid 5861] <... munmap resumed>) = 0 [pid 5865] <... write resumed>) = 16777216 [pid 5864] ioctl(4, LOOP_SET_FD, 3 [pid 5862] <... munmap resumed>) = 0 [pid 5860] <... ioctl resumed>) = 0 [pid 5859] <... ioctl resumed>) = 0 [pid 5861] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5861] ioctl(4, LOOP_SET_FD, 3 [pid 5864] <... ioctl resumed>) = 0 [pid 5865] munmap(0x7fd928800000, 138412032 [pid 5860] close(3 [pid 5859] close(3 [pid 5862] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5860] <... close resumed>) = 0 [pid 5859] <... close resumed>) = 0 [pid 5862] <... openat resumed>) = 4 [pid 5860] close(4 [pid 5859] close(4 [pid 5862] ioctl(4, LOOP_SET_FD, 3 [pid 5860] <... close resumed>) = 0 [pid 5859] <... close resumed>) = 0 [pid 5860] mkdir("./file0", 0777 [ 92.483499][ T5860] loop1: detected capacity change from 0 to 32768 [ 92.491303][ T5859] loop0: detected capacity change from 0 to 32768 [ 92.511193][ T5864] loop5: detected capacity change from 0 to 32768 [ 92.511804][ T5861] loop2: detected capacity change from 0 to 32768 [pid 5859] mkdir("./file0", 0777 [pid 5860] <... mkdir resumed>) = 0 [pid 5859] <... mkdir resumed>) = 0 [pid 5860] mount("/dev/loop1", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5859] mount("/dev/loop0", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5864] close(3 [pid 5860] <... mount resumed>) = 0 [pid 5864] <... close resumed>) = 0 [pid 5862] <... ioctl resumed>) = 0 [pid 5860] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5859] <... mount resumed>) = 0 [pid 5864] close(4 [pid 5859] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5864] <... close resumed>) = 0 [pid 5859] <... openat resumed>) = 3 [pid 5864] mkdir("./file0", 0777 [pid 5862] close(3 [pid 5859] chdir("./file0" [pid 5864] <... mkdir resumed>) = 0 [pid 5860] <... openat resumed>) = 3 [pid 5859] <... chdir resumed>) = 0 [pid 5860] chdir("./file0" [pid 5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5860] <... chdir resumed>) = 0 [pid 5859] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5860] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5859] exit_group(0 [pid 5862] <... close resumed>) = 0 [pid 5860] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5859] <... exit_group resumed>) = ? [pid 5864] mount("/dev/loop5", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5862] close(4 [pid 5860] exit_group(0 [pid 5859] +++ exited with 0 +++ [pid 5862] <... close resumed>) = 0 [pid 5860] <... exit_group resumed>) = ? [pid 5853] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5859, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=25 /* 0.25 s */} --- [pid 5862] mkdir("./file0", 0777 [pid 5853] restart_syscall(<... resuming interrupted clone ...> [pid 5862] <... mkdir resumed>) = 0 [pid 5861] <... ioctl resumed>) = 0 [pid 5860] +++ exited with 0 +++ [pid 5853] <... restart_syscall resumed>) = 0 [pid 5861] close(3) = 0 [pid 5861] close(4 [pid 5854] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5860, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=22 /* 0.22 s */} --- [ 92.533424][ T5862] loop3: detected capacity change from 0 to 32768 [pid 5865] <... munmap resumed>) = 0 [pid 5862] mount("/dev/loop3", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5861] <... close resumed>) = 0 [pid 5854] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5861] mkdir("./file0", 0777 [pid 5854] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5861] <... mkdir resumed>) = 0 [pid 5854] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5853] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5861] mount("/dev/loop2", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5854] <... openat resumed>) = 3 [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] newfstatat(3, "", [pid 5853] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5854] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5853] <... openat resumed>) = 3 [pid 5854] getdents64(3, [pid 5853] newfstatat(3, "", [pid 5864] <... mount resumed>) = 0 [pid 5865] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5853] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5865] <... openat resumed>) = 4 [pid 5854] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5853] getdents64(3, [pid 5864] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5854] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5865] ioctl(4, LOOP_SET_FD, 3 [pid 5853] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5864] <... openat resumed>) = 3 [pid 5864] chdir("./file0") = 0 [pid 5864] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5862] <... mount resumed>) = 0 [pid 5853] <... umount2 resumed>) = 0 [pid 5864] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5853] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5864] exit_group(0 [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5864] <... exit_group resumed>) = ? [pid 5853] newfstatat(AT_FDCWD, "./0/file0", [pid 5864] +++ exited with 0 +++ [pid 5853] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5858] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5864, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5853] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5858] restart_syscall(<... resuming interrupted clone ...> [pid 5861] <... mount resumed>) = 0 [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] <... umount2 resumed>) = 0 [pid 5853] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5862] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5854] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5861] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5853] <... openat resumed>) = 4 [pid 5854] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5862] <... openat resumed>) = 3 [pid 5861] <... openat resumed>) = 3 [pid 5854] newfstatat(AT_FDCWD, "./0/file0", [pid 5853] newfstatat(4, "", [pid 5861] chdir("./file0") = 0 [pid 5853] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5861] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5854] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5853] getdents64(4, [pid 5861] exit_group(0 [pid 5853] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5861] <... exit_group resumed>) = ? [pid 5854] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] getdents64(4, [pid 5861] +++ exited with 0 +++ [pid 5858] <... restart_syscall resumed>) = 0 [pid 5853] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5865] <... ioctl resumed>) = 0 [pid 5855] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5861, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=19 /* 0.19 s */} --- [pid 5854] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5865] close(3 [pid 5862] chdir("./file0" [pid 5853] close(4) = 0 [pid 5855] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] rmdir("./0/file0" [pid 5862] <... chdir resumed>) = 0 [pid 5858] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5862] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5858] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5855] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] <... openat resumed>) = 4 [pid 5853] <... rmdir resumed>) = 0 [pid 5855] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5853] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5862] exit_group(0 [pid 5858] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5855] <... openat resumed>) = 3 [pid 5854] newfstatat(4, "", [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5865] <... close resumed>) = 0 [pid 5862] <... exit_group resumed>) = ? [pid 5858] <... openat resumed>) = 3 [pid 5855] newfstatat(3, "", [pid 5865] close(4 [pid 5855] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5853] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5865] <... close resumed>) = 0 [pid 5855] getdents64(3, [pid 5853] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5865] mkdir("./file0", 0777 [pid 5855] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5865] <... mkdir resumed>) = 0 [pid 5858] newfstatat(3, "", [pid 5855] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] getdents64(4, [ 92.604405][ T5865] loop4: detected capacity change from 0 to 32768 [pid 5853] unlink("./0/binderfs" [pid 5862] +++ exited with 0 +++ [pid 5858] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5853] <... unlink resumed>) = 0 [pid 5865] mount("/dev/loop4", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5858] getdents64(3, [pid 5854] getdents64(4, [pid 5858] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5856] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5862, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=29 /* 0.29 s */} --- [pid 5854] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5853] getdents64(3, [pid 5858] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5856] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] close(4 [pid 5853] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5856] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5853] close(3 [pid 5856] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5854] <... close resumed>) = 0 [pid 5853] <... close resumed>) = 0 [pid 5856] <... openat resumed>) = 3 [pid 5854] rmdir("./0/file0" [pid 5853] rmdir("./0" [pid 5856] newfstatat(3, "", [pid 5854] <... rmdir resumed>) = 0 [pid 5853] <... rmdir resumed>) = 0 [pid 5856] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5853] mkdir("./1", 0777 [pid 5856] getdents64(3, [pid 5854] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] <... mkdir resumed>) = 0 [pid 5856] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5854] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5853] ioctl(3, LOOP_CLR_FD) = 0 [pid 5853] close(3) = 0 [pid 5853] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5865] <... mount resumed>) = 0 [pid 5854] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5869 attached [pid 5865] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5854] unlink("./0/binderfs" [pid 5865] <... openat resumed>) = 3 [pid 5865] chdir("./file0" [pid 5854] <... unlink resumed>) = 0 [pid 5865] <... chdir resumed>) = 0 [pid 5854] getdents64(3, [pid 5865] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5854] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5865] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5854] close(3 [pid 5869] set_robust_list(0x555583204660, 24 [pid 5865] exit_group(0 [pid 5855] <... umount2 resumed>) = 0 [pid 5854] <... close resumed>) = 0 [pid 5853] <... clone resumed>, child_tidptr=0x555583204650) = 5869 [pid 5869] <... set_robust_list resumed>) = 0 [pid 5855] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] rmdir("./0" [pid 5865] <... exit_group resumed>) = ? [pid 5869] chdir("./1" [pid 5855] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] <... rmdir resumed>) = 0 [pid 5855] newfstatat(AT_FDCWD, "./0/file0", [pid 5854] mkdir("./1", 0777 [pid 5869] <... chdir resumed>) = 0 [pid 5855] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5854] <... mkdir resumed>) = 0 [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5855] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5869] <... prctl resumed>) = 0 [pid 5855] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] <... openat resumed>) = 3 [pid 5869] setpgid(0, 0 [pid 5865] +++ exited with 0 +++ [pid 5855] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5854] ioctl(3, LOOP_CLR_FD [pid 5857] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5865, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=28 /* 0.28 s */} --- [pid 5855] <... openat resumed>) = 4 [pid 5869] <... setpgid resumed>) = 0 [pid 5854] <... ioctl resumed>) = 0 [pid 5857] restart_syscall(<... resuming interrupted clone ...> [pid 5854] close(3 [pid 5855] newfstatat(4, "", [pid 5854] <... close resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5857] <... restart_syscall resumed>) = 0 [pid 5855] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] <... openat resumed>) = 3 [pid 5855] getdents64(4, ./strace-static-x86_64: Process 5870 attached 0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5857] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5855] getdents64(4, [pid 5854] <... clone resumed>, child_tidptr=0x555583204650) = 5870 [pid 5870] set_robust_list(0x555583204660, 24 [pid 5869] write(3, "1000", 4 [pid 5857] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] <... umount2 resumed>) = 0 [pid 5855] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5857] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5855] close(4 [pid 5856] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5869] <... write resumed>) = 4 [pid 5858] <... umount2 resumed>) = 0 [pid 5857] <... openat resumed>) = 3 [pid 5855] <... close resumed>) = 0 [pid 5857] newfstatat(3, "", [pid 5855] rmdir("./0/file0" [pid 5869] close(3 [pid 5857] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5870] <... set_robust_list resumed>) = 0 [pid 5869] <... close resumed>) = 0 [pid 5858] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5857] getdents64(3, [pid 5856] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5855] <... rmdir resumed>) = 0 [pid 5869] symlink("/dev/binderfs", "./binderfs" [pid 5857] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5855] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 5870] chdir("./1" [pid 5869] <... symlink resumed>) = 0 [pid 5858] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5857] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5856] newfstatat(AT_FDCWD, "./0/file0", [pid 5855] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5869] write(1, "executing program\n", 18 [pid 5858] newfstatat(AT_FDCWD, "./0/file0", [pid 5869] <... write resumed>) = 18 [pid 5855] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5858] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5870] <... chdir resumed>) = 0 [pid 5856] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5856] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5869] memfd_create("syzkaller", 0 [pid 5856] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5870] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... memfd_create resumed>) = 3 [pid 5858] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5856] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5855] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5870] <... prctl resumed>) = 0 [pid 5869] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5858] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] <... openat resumed>) = 4 [pid 5870] setpgid(0, 0 [pid 5858] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5856] newfstatat(4, "", [pid 5855] unlink("./0/binderfs" [pid 5869] <... mmap resumed>) = 0x7fd928800000 [pid 5870] <... setpgid resumed>) = 0 [pid 5858] <... openat resumed>) = 4 [pid 5856] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5855] <... unlink resumed>) = 0 [pid 5870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5858] newfstatat(4, "", [pid 5857] <... umount2 resumed>) = 0 [pid 5856] getdents64(4, [pid 5855] getdents64(3, [pid 5858] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5855] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5858] getdents64(4, [pid 5855] close(3 [pid 5856] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5856] getdents64(4, [pid 5870] <... openat resumed>) = 3 [pid 5856] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5856] close(4) = 0 [pid 5856] rmdir("./0/file0" [pid 5858] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5856] <... rmdir resumed>) = 0 [pid 5855] <... close resumed>) = 0 [pid 5870] write(3, "1000", 4) = 4 [pid 5855] rmdir("./0" [pid 5858] getdents64(4, [pid 5857] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5870] close(3) = 0 [pid 5870] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5858] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5870] write(1, "executing program\n", 18) = 18 [pid 5870] memfd_create("syzkaller", 0 [pid 5858] close(4 [pid 5857] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5855] <... rmdir resumed>) = 0 [pid 5856] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5858] <... close resumed>) = 0 [pid 5857] newfstatat(AT_FDCWD, "./0/file0", [pid 5855] mkdir("./1", 0777 [pid 5857] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5856] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5856] unlink("./0/binderfs" [pid 5858] rmdir("./0/file0" [pid 5857] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5856] <... unlink resumed>) = 0 [pid 5855] <... mkdir resumed>) = 0 [pid 5857] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5855] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5870] <... memfd_create resumed>) = 3 [pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd928800000 [pid 5858] <... rmdir resumed>) = 0 [pid 5856] getdents64(3, [pid 5858] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5857] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5856] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5855] <... openat resumed>) = 3 [pid 5856] close(3) = 0 [pid 5856] rmdir("./0") = 0 [pid 5858] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5857] <... openat resumed>) = 4 [pid 5855] ioctl(3, LOOP_CLR_FD [pid 5856] mkdir("./1", 0777 [pid 5858] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5857] newfstatat(4, "", [pid 5856] <... mkdir resumed>) = 0 [pid 5855] <... ioctl resumed>) = 0 [pid 5858] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5855] close(3 [pid 5857] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5855] <... close resumed>) = 0 [pid 5857] getdents64(4, [pid 5855] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5857] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5872 attached [pid 5858] unlink("./0/binderfs" [pid 5857] getdents64(4, 0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5858] <... unlink resumed>) = 0 [pid 5855] <... clone resumed>, child_tidptr=0x555583204650) = 5872 [pid 5872] set_robust_list(0x555583204660, 24 [pid 5858] getdents64(3, [pid 5857] close(4 [pid 5872] <... set_robust_list resumed>) = 0 [pid 5856] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5857] <... close resumed>) = 0 [pid 5856] <... openat resumed>) = 3 [pid 5872] chdir("./1" [pid 5858] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5857] rmdir("./0/file0" [pid 5858] close(3 [pid 5856] ioctl(3, LOOP_CLR_FD) = 0 [pid 5856] close(3 [pid 5872] <... chdir resumed>) = 0 [pid 5858] <... close resumed>) = 0 [pid 5857] <... rmdir resumed>) = 0 [pid 5856] <... close resumed>) = 0 [pid 5872] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5858] rmdir("./0" [pid 5857] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5856] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5872] <... prctl resumed>) = 0 [pid 5858] <... rmdir resumed>) = 0 [pid 5857] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5873 attached [pid 5872] setpgid(0, 0 [pid 5873] set_robust_list(0x555583204660, 24) = 0 [pid 5872] <... setpgid resumed>) = 0 [pid 5873] chdir("./1" [pid 5872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5858] mkdir("./1", 0777 [pid 5857] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5873] <... chdir resumed>) = 0 [pid 5856] <... clone resumed>, child_tidptr=0x555583204650) = 5873 [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5872] <... openat resumed>) = 3 [pid 5858] <... mkdir resumed>) = 0 [pid 5857] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5873] setpgid(0, 0 [pid 5872] write(3, "1000", 4 [pid 5858] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5857] unlink("./0/binderfs" [pid 5873] <... setpgid resumed>) = 0 [pid 5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5872] <... write resumed>) = 4 [pid 5858] <... openat resumed>) = 3 [pid 5857] <... unlink resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5872] close(3 [pid 5858] ioctl(3, LOOP_CLR_FD [pid 5857] getdents64(3, [pid 5873] write(3, "1000", 4 [pid 5872] <... close resumed>) = 0 [pid 5858] <... ioctl resumed>) = 0 [pid 5857] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5873] <... write resumed>) = 4 [pid 5873] close(3) = 0 [pid 5873] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5873] write(1, "executing program\n", 18) = 18 [pid 5873] memfd_create("syzkaller", 0 [pid 5858] close(3 [pid 5857] close(3 [pid 5872] symlink("/dev/binderfs", "./binderfs" [pid 5858] <... close resumed>) = 0 [pid 5873] <... memfd_create resumed>) = 3 [pid 5872] <... symlink resumed>) = 0 [pid 5858] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5857] <... close resumed>) = 0 [pid 5873] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd928800000 [pid 5857] rmdir("./0" [pid 5872] write(1, "executing program\n", 18./strace-static-x86_64: Process 5874 attached executing program [pid 5858] <... clone resumed>, child_tidptr=0x555583204650) = 5874 [pid 5874] set_robust_list(0x555583204660, 24) = 0 [pid 5872] <... write resumed>) = 18 [pid 5857] <... rmdir resumed>) = 0 [pid 5874] chdir("./1" [pid 5872] memfd_create("syzkaller", 0 [pid 5857] mkdir("./1", 0777 [pid 5874] <... chdir resumed>) = 0 [pid 5872] <... memfd_create resumed>) = 3 [pid 5857] <... mkdir resumed>) = 0 [pid 5872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5872] <... mmap resumed>) = 0x7fd928800000 [pid 5874] setpgid(0, 0) = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5857] <... openat resumed>) = 3 [pid 5857] ioctl(3, LOOP_CLR_FD [pid 5874] <... openat resumed>) = 3 [pid 5857] <... ioctl resumed>) = 0 [pid 5857] close(3) = 0 [pid 5857] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5875 attached [pid 5874] write(3, "1000", 4executing program [pid 5875] set_robust_list(0x555583204660, 24 [pid 5874] <... write resumed>) = 4 [pid 5857] <... clone resumed>, child_tidptr=0x555583204650) = 5875 [pid 5874] close(3 [pid 5875] <... set_robust_list resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 5874] symlink("/dev/binderfs", "./binderfs" [pid 5875] chdir("./1" [pid 5874] <... symlink resumed>) = 0 [pid 5874] write(1, "executing program\n", 18 [pid 5875] <... chdir resumed>) = 0 [pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] <... write resumed>) = 18 [pid 5875] <... prctl resumed>) = 0 [pid 5874] memfd_create("syzkaller", 0 [pid 5875] setpgid(0, 0) = 0 [pid 5875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5875] write(3, "1000", 4 [pid 5874] <... memfd_create resumed>) = 3 [pid 5875] <... write resumed>) = 4 [pid 5874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5875] close(3 [pid 5874] <... mmap resumed>) = 0x7fd928800000 [pid 5875] <... close resumed>) = 0 [pid 5875] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5875] write(1, "executing program\n", 18) = 18 [pid 5875] memfd_create("syzkaller", 0) = 3 [pid 5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd928800000 [pid 5869] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5870] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5873] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] <... write resumed>) = 16777216 [pid 5869] munmap(0x7fd928800000, 138412032 [pid 5873] <... write resumed>) = 16777216 [pid 5872] <... write resumed>) = 16777216 [pid 5870] <... write resumed>) = 16777216 [pid 5873] munmap(0x7fd928800000, 138412032 [pid 5872] munmap(0x7fd928800000, 138412032 [pid 5870] munmap(0x7fd928800000, 138412032 [pid 5869] <... munmap resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5869] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5870] <... munmap resumed>) = 0 [pid 5869] close(3) = 0 [pid 5869] close(4) = 0 [pid 5869] mkdir("./file0", 0777) = 0 [pid 5869] mount("/dev/loop0", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5870] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5870] ioctl(4, LOOP_SET_FD, 3 [pid 5869] <... mount resumed>) = 0 [pid 5869] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5869] chdir("./file0") = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5869] exit_group(0) = ? [pid 5870] <... ioctl resumed>) = 0 [pid 5869] +++ exited with 0 +++ [pid 5853] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5869, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5853] restart_syscall(<... resuming interrupted clone ...> [pid 5872] <... munmap resumed>) = 0 [pid 5870] close(3 [pid 5853] <... restart_syscall resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5870] <... close resumed>) = 0 [pid 5872] <... openat resumed>) = 4 [pid 5870] close(4 [pid 5872] ioctl(4, LOOP_SET_FD, 3 [pid 5870] <... close resumed>) = 0 [ 94.153903][ T5869] loop0: detected capacity change from 0 to 32768 [ 94.189784][ T5870] loop1: detected capacity change from 0 to 32768 [pid 5870] mkdir("./file0", 0777 [pid 5873] <... munmap resumed>) = 0 [pid 5853] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] ioctl(4, LOOP_SET_FD, 3 [pid 5853] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... ioctl resumed>) = 0 [pid 5853] <... openat resumed>) = 3 [pid 5873] close(3 [pid 5853] newfstatat(3, "", [pid 5873] <... close resumed>) = 0 [pid 5853] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5873] close(4 [pid 5853] getdents64(3, [pid 5873] <... close resumed>) = 0 [pid 5873] mkdir("./file0", 0777 [pid 5853] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5873] <... mkdir resumed>) = 0 [pid 5853] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] mount("/dev/loop3", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5870] <... mkdir resumed>) = 0 [pid 5870] mount("/dev/loop1", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5874] <... write resumed>) = 16777216 [pid 5873] <... mount resumed>) = 0 [pid 5870] <... mount resumed>) = 0 [ 94.206631][ T5872] loop2: detected capacity change from 0 to 32768 [ 94.213346][ T5873] loop3: detected capacity change from 0 to 32768 [pid 5874] munmap(0x7fd928800000, 138412032 [pid 5873] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5870] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5873] <... openat resumed>) = 3 [pid 5870] <... openat resumed>) = 3 [pid 5873] chdir("./file0" [pid 5870] chdir("./file0" [pid 5873] <... chdir resumed>) = 0 [pid 5873] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5872] <... ioctl resumed>) = 0 [pid 5870] <... chdir resumed>) = 0 [pid 5853] <... umount2 resumed>) = 0 [pid 5873] exit_group(0 [pid 5872] close(3 [pid 5870] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5853] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... exit_group resumed>) = ? [pid 5870] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... write resumed>) = 16777216 [pid 5873] +++ exited with 0 +++ [pid 5872] <... close resumed>) = 0 [pid 5870] exit_group(0 [pid 5853] newfstatat(AT_FDCWD, "./1/file0", [pid 5875] munmap(0x7fd928800000, 138412032 [pid 5872] close(4 [pid 5870] <... exit_group resumed>) = ? [pid 5856] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5873, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=24 /* 0.24 s */} --- [pid 5853] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5856] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5870] +++ exited with 0 +++ [pid 5872] <... close resumed>) = 0 [pid 5856] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5853] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5872] mkdir("./file0", 0777 [pid 5856] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5854] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5870, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=24 /* 0.24 s */} --- [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] <... openat resumed>) = 3 [pid 5854] restart_syscall(<... resuming interrupted clone ...> [pid 5853] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5856] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5856] getdents64(3, [pid 5872] <... mkdir resumed>) = 0 [pid 5856] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5856] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] <... openat resumed>) = 4 [pid 5853] newfstatat(4, "", [pid 5872] mount("/dev/loop2", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5854] <... restart_syscall resumed>) = 0 [pid 5853] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5853] getdents64(4, [pid 5854] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5853] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5854] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5853] getdents64(4, [pid 5854] getdents64(3, 0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5853] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5854] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] close(4) = 0 [pid 5872] <... mount resumed>) = 0 [pid 5853] rmdir("./1/file0" [pid 5872] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5853] <... rmdir resumed>) = 0 [pid 5872] chdir("./file0" [pid 5853] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... munmap resumed>) = 0 [pid 5872] <... chdir resumed>) = 0 [pid 5854] <... umount2 resumed>) = 0 [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5872] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5854] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5853] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5854] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5872] exit_group(0 [pid 5854] newfstatat(AT_FDCWD, "./1/file0", [pid 5853] unlink("./1/binderfs" [pid 5872] <... exit_group resumed>) = ? [pid 5874] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5853] <... unlink resumed>) = 0 [pid 5872] +++ exited with 0 +++ [pid 5854] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5853] getdents64(3, [pid 5855] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5872, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=29 /* 0.29 s */} --- [pid 5874] <... openat resumed>) = 4 [pid 5854] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5854] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5853] close(3 [pid 5874] ioctl(4, LOOP_SET_FD, 3 [pid 5854] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5853] <... close resumed>) = 0 [pid 5855] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] rmdir("./1" [pid 5855] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5855] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5855] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5855] getdents64(3, 0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5854] <... openat resumed>) = 4 [pid 5853] <... rmdir resumed>) = 0 [pid 5855] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] mkdir("./2", 0777 [pid 5854] newfstatat(4, "", [pid 5853] <... mkdir resumed>) = 0 [pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5854] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] getdents64(4, [pid 5853] <... openat resumed>) = 3 [pid 5856] <... umount2 resumed>) = 0 [pid 5853] ioctl(3, LOOP_CLR_FD [pid 5854] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5856] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] <... ioctl resumed>) = 0 [pid 5856] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] getdents64(4, [pid 5853] close(3 [pid 5874] <... ioctl resumed>) = 0 [pid 5854] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5853] <... close resumed>) = 0 [pid 5874] close(3 [pid 5854] close(4 [pid 5853] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5876 attached [pid 5874] <... close resumed>) = 0 [pid 5856] newfstatat(AT_FDCWD, "./1/file0", [pid 5854] <... close resumed>) = 0 [pid 5874] close(4 [pid 5856] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5854] rmdir("./1/file0" [pid 5874] <... close resumed>) = 0 [pid 5855] <... umount2 resumed>) = 0 [pid 5874] mkdir("./file0", 0777) = 0 [pid 5856] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] <... rmdir resumed>) = 0 [pid 5853] <... clone resumed>, child_tidptr=0x555583204650) = 5876 [pid 5876] set_robust_list(0x555583204660, 24 [pid 5874] mount("/dev/loop5", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5855] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... set_robust_list resumed>) = 0 [pid 5875] <... munmap resumed>) = 0 [pid 5856] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5855] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] chdir("./2" [pid 5875] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5856] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5855] newfstatat(AT_FDCWD, "./1/file0", [pid 5854] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... chdir resumed>) = 0 [pid 5876] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] <... openat resumed>) = 4 [pid 5856] <... openat resumed>) = 4 [pid 5855] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5854] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5876] <... prctl resumed>) = 0 [pid 5856] newfstatat(4, "", [pid 5855] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] setpgid(0, 0 [pid 5855] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] unlink("./1/binderfs" [pid 5876] <... setpgid resumed>) = 0 [pid 5856] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] <... unlink resumed>) = 0 [pid 5876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 94.351947][ T5874] loop5: detected capacity change from 0 to 32768 [pid 5856] getdents64(4, [pid 5855] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5854] getdents64(3, [pid 5875] ioctl(4, LOOP_SET_FD, 3 [pid 5876] <... openat resumed>) = 3 [pid 5876] write(3, "1000", 4 [pid 5855] <... openat resumed>) = 4 [pid 5854] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5876] <... write resumed>) = 4 [pid 5856] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5855] newfstatat(4, "", [pid 5854] close(3 [pid 5876] close(3) = 0 [pid 5856] getdents64(4, [pid 5855] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] <... close resumed>) = 0 [pid 5876] symlink("/dev/binderfs", "./binderfs" [pid 5856] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5855] getdents64(4, [pid 5854] rmdir("./1" [pid 5876] <... symlink resumed>) = 0 [pid 5856] close(4executing program [pid 5876] write(1, "executing program\n", 18 [pid 5855] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5876] <... write resumed>) = 18 [pid 5856] <... close resumed>) = 0 [pid 5854] <... rmdir resumed>) = 0 [pid 5876] memfd_create("syzkaller", 0 [pid 5856] rmdir("./1/file0" [pid 5855] getdents64(4, [pid 5854] mkdir("./2", 0777 [pid 5876] <... memfd_create resumed>) = 3 [pid 5856] <... rmdir resumed>) = 0 [pid 5876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd928800000 [pid 5854] <... mkdir resumed>) = 0 [pid 5875] <... ioctl resumed>) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5856] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5855] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5854] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5874] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5856] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5855] close(4 [pid 5874] <... openat resumed>) = 3 [ 94.405137][ T5875] loop4: detected capacity change from 0 to 32768 [pid 5874] chdir("./file0" [pid 5855] <... close resumed>) = 0 [pid 5875] close(3 [pid 5856] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5855] rmdir("./1/file0" [pid 5854] <... openat resumed>) = 3 [pid 5875] <... close resumed>) = 0 [pid 5874] <... chdir resumed>) = 0 [pid 5874] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5875] close(4 [pid 5855] <... rmdir resumed>) = 0 [pid 5854] ioctl(3, LOOP_CLR_FD [pid 5856] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5856] unlink("./1/binderfs" [pid 5875] <... close resumed>) = 0 [pid 5854] <... ioctl resumed>) = 0 [pid 5875] mkdir("./file0", 0777 [pid 5854] close(3 [pid 5856] <... unlink resumed>) = 0 [pid 5854] <... close resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5856] getdents64(3, [pid 5854] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] exit_group(0 [pid 5855] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5856] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5854] <... clone resumed>, child_tidptr=0x555583204650) = 5877 ./strace-static-x86_64: Process 5877 attached [pid 5877] set_robust_list(0x555583204660, 24 [pid 5875] mount("/dev/loop4", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5874] <... exit_group resumed>) = ? [pid 5856] close(3 [pid 5855] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5855] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5856] <... close resumed>) = 0 [pid 5855] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... set_robust_list resumed>) = 0 [pid 5856] rmdir("./1" [pid 5855] unlink("./1/binderfs") = 0 [pid 5856] <... rmdir resumed>) = 0 [pid 5877] chdir("./2" [pid 5875] <... mount resumed>) = 0 [pid 5874] +++ exited with 0 +++ [pid 5856] mkdir("./2", 0777 [pid 5855] getdents64(3, [pid 5877] <... chdir resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5858] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5874, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=21 /* 0.21 s */} --- [pid 5858] restart_syscall(<... resuming interrupted clone ...> [pid 5855] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] <... openat resumed>) = 3 [pid 5856] <... mkdir resumed>) = 0 [pid 5855] close(3 [pid 5877] <... prctl resumed>) = 0 [pid 5875] chdir("./file0" [pid 5858] <... restart_syscall resumed>) = 0 [pid 5856] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5855] <... close resumed>) = 0 [pid 5875] <... chdir resumed>) = 0 [pid 5856] <... openat resumed>) = 3 [pid 5855] rmdir("./1" [pid 5858] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5855] <... rmdir resumed>) = 0 [pid 5858] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5858] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5858] getdents64(3, [pid 5855] mkdir("./2", 0777 [pid 5875] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5858] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5856] ioctl(3, LOOP_CLR_FD [pid 5855] <... mkdir resumed>) = 0 [pid 5877] setpgid(0, 0) = 0 [pid 5858] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5856] <... ioctl resumed>) = 0 [pid 5875] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] exit_group(0 [pid 5856] close(3 [pid 5855] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5875] <... exit_group resumed>) = ? [pid 5877] <... openat resumed>) = 3 [pid 5855] <... openat resumed>) = 3 [pid 5855] ioctl(3, LOOP_CLR_FD) = 0 [pid 5855] close(3 [pid 5875] +++ exited with 0 +++ [pid 5855] <... close resumed>) = 0 [pid 5857] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5875, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5877] write(3, "1000", 4 [pid 5857] restart_syscall(<... resuming interrupted clone ...> [pid 5877] <... write resumed>) = 4 [pid 5877] close(3) = 0 [pid 5855] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5877] symlink("/dev/binderfs", "./binderfs" [pid 5857] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5878 attached [pid 5857] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5857] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5857] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5855] <... clone resumed>, child_tidptr=0x555583204650) = 5878 [pid 5877] <... symlink resumed>) = 0 [pid 5858] <... umount2 resumed>) = 0 [pid 5857] getdents64(3, [pid 5877] write(1, "executing program\n", 18 [pid 5878] set_robust_list(0x555583204660, 24 [pid 5858] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5857] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5878] <... set_robust_list resumed>) = 0 [pid 5858] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5857] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5878] chdir("./2" [pid 5858] newfstatat(AT_FDCWD, "./1/file0", [pid 5878] <... chdir resumed>) = 0 [pid 5858] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5878] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5858] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5878] <... prctl resumed>) = 0 [pid 5858] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5878] setpgid(0, 0) = 0 [pid 5877] <... write resumed>) = 18 [pid 5858] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] memfd_create("syzkaller", 0 [pid 5858] <... openat resumed>) = 4 [pid 5878] <... openat resumed>) = 3 [pid 5877] <... memfd_create resumed>) = 3 [pid 5858] newfstatat(4, "", [pid 5877] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5858] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5878] write(3, "1000", 4 [pid 5877] <... mmap resumed>) = 0x7fd928800000 [pid 5858] getdents64(4, [pid 5878] <... write resumed>) = 4 [pid 5858] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5878] close(3 [pid 5858] getdents64(4, [pid 5878] <... close resumed>) = 0 [pid 5858] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5878] symlink("/dev/binderfs", "./binderfs" [pid 5858] close(4 [pid 5878] <... symlink resumed>) = 0 [pid 5858] <... close resumed>) = 0 [pid 5858] rmdir("./1/file0"executing program [pid 5878] write(1, "executing program\n", 18 [pid 5858] <... rmdir resumed>) = 0 [pid 5878] <... write resumed>) = 18 [pid 5878] memfd_create("syzkaller", 0 [pid 5858] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5878] <... memfd_create resumed>) = 3 [pid 5878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5858] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5878] <... mmap resumed>) = 0x7fd928800000 [pid 5858] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5858] unlink("./1/binderfs") = 0 [pid 5858] getdents64(3, 0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5858] close(3) = 0 [pid 5858] rmdir("./1") = 0 [pid 5858] mkdir("./2", 0777) = 0 [pid 5858] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5858] ioctl(3, LOOP_CLR_FD) = 0 [pid 5858] close(3) = 0 [pid 5857] <... umount2 resumed>) = 0 [pid 5858] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5857] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5879 attached ) = -1 EINVAL (Invalid argument) [pid 5857] newfstatat(AT_FDCWD, "./1/file0", [pid 5879] set_robust_list(0x555583204660, 24 [pid 5858] <... clone resumed>, child_tidptr=0x555583204650) = 5879 [pid 5879] <... set_robust_list resumed>) = 0 [pid 5879] chdir("./2" [pid 5857] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5879] <... chdir resumed>) = 0 [pid 5857] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5857] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5879] <... prctl resumed>) = 0 [pid 5857] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5879] setpgid(0, 0) = 0 [pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5879] write(3, "1000", 4 [pid 5857] <... openat resumed>) = 4 [pid 5857] newfstatat(4, "", [pid 5879] <... write resumed>) = 4 [pid 5879] close(3) = 0 [pid 5879] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5879] write(1, "executing program\n", 18) = 18 [pid 5879] memfd_create("syzkaller", 0 [pid 5857] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5857] getdents64(4, 0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5879] <... memfd_create resumed>) = 3 [pid 5879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd928800000 [pid 5857] getdents64(4, 0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5857] close(4) = 0 [pid 5857] rmdir("./1/file0") = 0 [pid 5857] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5857] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5857] unlink("./1/binderfs") = 0 [pid 5857] getdents64(3, 0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5857] close(3) = 0 [pid 5857] rmdir("./1") = 0 [pid 5857] mkdir("./2", 0777) = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5857] ioctl(3, LOOP_CLR_FD) = 0 [pid 5857] close(3) = 0 [pid 5857] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5880 attached , child_tidptr=0x555583204650) = 5880 [pid 5880] set_robust_list(0x555583204660, 24) = 0 [pid 5880] chdir("./2") = 0 [pid 5880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5880] setpgid(0, 0) = 0 [pid 5880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5880] write(3, "1000", 4) = 4 [pid 5880] close(3) = 0 [pid 5880] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5880] write(1, "executing program\n", 18executing program ) = 18 [pid 5880] memfd_create("syzkaller", 0) = 3 [pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd928800000 [pid 5876] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5856] <... close resumed>) = 0 [pid 5877] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5856] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5881 attached , child_tidptr=0x555583204650) = 5881 [pid 5881] set_robust_list(0x555583204660, 24) = 0 [pid 5881] chdir("./2") = 0 [pid 5881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5881] setpgid(0, 0) = 0 [pid 5881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5881] write(3, "1000", 4) = 4 [pid 5881] close(3) = 0 [pid 5881] symlink("/dev/binderfs", "./binderfs" [pid 5878] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5881] <... symlink resumed>) = 0 executing program [pid 5881] write(1, "executing program\n", 18) = 18 [pid 5881] memfd_create("syzkaller", 0) = 3 [pid 5881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd928800000 [pid 5879] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5881] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5876] <... write resumed>) = 16777216 [pid 5876] munmap(0x7fd928800000, 138412032) = 0 [pid 5876] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5876] ioctl(4, LOOP_SET_FD, 3 [pid 5877] <... write resumed>) = 16777216 [pid 5876] <... ioctl resumed>) = 0 [pid 5877] munmap(0x7fd928800000, 138412032 [pid 5876] close(3) = 0 [pid 5876] close(4) = 0 [pid 5876] mkdir("./file0", 0777) = 0 [ 95.754655][ T5876] loop0: detected capacity change from 0 to 32768 [pid 5876] mount("/dev/loop0", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5877] <... munmap resumed>) = 0 [pid 5876] <... mount resumed>) = 0 [pid 5876] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5877] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5876] <... openat resumed>) = 3 [pid 5877] ioctl(4, LOOP_SET_FD, 3 [pid 5876] chdir("./file0") = 0 [pid 5876] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5878] <... write resumed>) = 16777216 [pid 5876] exit_group(0 [pid 5878] munmap(0x7fd928800000, 138412032 [pid 5879] <... write resumed>) = 16777216 [pid 5876] <... exit_group resumed>) = ? [pid 5876] +++ exited with 0 +++ [pid 5853] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5876, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=25 /* 0.25 s */} --- [pid 5877] <... ioctl resumed>) = 0 [pid 5853] restart_syscall(<... resuming interrupted clone ...> [pid 5879] munmap(0x7fd928800000, 138412032 [pid 5853] <... restart_syscall resumed>) = 0 [pid 5877] close(3) = 0 [pid 5877] close(4) = 0 [pid 5853] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] mkdir("./file0", 0777 [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... mkdir resumed>) = 0 [pid 5853] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] mount("/dev/loop1", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5853] <... openat resumed>) = 3 [pid 5853] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5853] getdents64(3, 0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5853] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... mount resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5877] chdir("./file0") = 0 [pid 5877] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5877] exit_group(0) = ? [pid 5877] +++ exited with 0 +++ [pid 5854] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5877, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5854] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5854] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 95.857674][ T5877] loop1: detected capacity change from 0 to 32768 [pid 5854] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5854] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] getdents64(3, 0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5854] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5878] <... munmap resumed>) = 0 [pid 5880] <... write resumed>) = 16777216 [pid 5879] <... munmap resumed>) = 0 [pid 5853] <... umount2 resumed>) = 0 [pid 5880] munmap(0x7fd928800000, 138412032 [pid 5853] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5878] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5878] <... openat resumed>) = 4 [pid 5878] ioctl(4, LOOP_SET_FD, 3 [pid 5853] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5853] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5879] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5853] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5854] <... umount2 resumed>) = 0 [pid 5879] ioctl(4, LOOP_SET_FD, 3 [pid 5854] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5853] <... openat resumed>) = 4 [pid 5854] newfstatat(AT_FDCWD, "./2/file0", [pid 5853] newfstatat(4, "", [pid 5854] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5853] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] getdents64(4, 0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5854] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5878] <... ioctl resumed>) = 0 [pid 5854] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5853] getdents64(4, [pid 5878] close(3 [pid 5854] <... openat resumed>) = 4 [pid 5853] <... getdents64 resumed>0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5853] close(4 [pid 5878] <... close resumed>) = 0 [pid 5878] close(4) = 0 [pid 5853] <... close resumed>) = 0 [pid 5878] mkdir("./file0", 0777) = 0 [pid 5853] rmdir("./2/file0" [pid 5854] newfstatat(4, "", [pid 5878] mount("/dev/loop2", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5853] <... rmdir resumed>) = 0 [pid 5854] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5853] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] getdents64(4, [pid 5853] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] <... getdents64 resumed>0x55558320d730 /* 2 entries */, 32768) = 48 [pid 5853] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5854] getdents64(4, 0x55558320d730 /* 0 entries */, 32768) = 0 [pid 5853] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5854] close(4 [pid 5853] unlink("./2/binderfs") = 0 [pid 5854] <... close resumed>) = 0 [pid 5853] getdents64(3, [pid 5854] rmdir("./2/file0" [pid 5853] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5854] <... rmdir resumed>) = 0 [pid 5853] close(3) = 0 [pid 5853] rmdir("./2") = 0 [ 95.935947][ T5878] loop2: detected capacity change from 0 to 32768 [ 95.948075][ T5879] loop5: detected capacity change from 0 to 32768 [pid 5879] <... ioctl resumed>) = 0 [pid 5880] <... munmap resumed>) = 0 [pid 5878] <... mount resumed>) = 0 [pid 5854] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] mkdir("./3", 0777 [pid 5854] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5878] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5854] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5854] unlink("./2/binderfs" [pid 5853] <... mkdir resumed>) = 0 [pid 5879] close(3) = 0 [pid 5854] <... unlink resumed>) = 0 [pid 5879] close(4 [pid 5854] getdents64(3, [pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5879] <... close resumed>) = 0 [pid 5854] <... getdents64 resumed>0x5555832056f0 /* 0 entries */, 32768) = 0 [pid 5853] <... openat resumed>) = 3 [pid 5854] close(3 [pid 5879] mkdir("./file0", 0777 [pid 5854] <... close resumed>) = 0 [pid 5853] ioctl(3, LOOP_CLR_FD [pid 5854] rmdir("./2" [pid 5853] <... ioctl resumed>) = 0 [pid 5879] <... mkdir resumed>) = 0 [pid 5854] <... rmdir resumed>) = 0 [pid 5853] close(3 [pid 5854] mkdir("./3", 0777 [pid 5880] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5853] <... close resumed>) = 0 [pid 5880] <... openat resumed>) = 4 [pid 5853] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5879] mount("/dev/loop5", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5880] ioctl(4, LOOP_SET_FD, 3 [pid 5878] <... openat resumed>) = 3 [pid 5878] chdir("./file0") = 0 [pid 5878] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5854] <... mkdir resumed>) = 0 [pid 5879] <... mount resumed>) = 0 [pid 5879] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 5882 attached [pid 5878] exit_group(0 [pid 5854] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5853] <... clone resumed>, child_tidptr=0x555583204650) = 5882 [pid 5854] <... openat resumed>) = 3 [pid 5854] ioctl(3, LOOP_CLR_FD) = 0 [pid 5882] set_robust_list(0x555583204660, 24) = 0 [pid 5854] close(3 [pid 5878] <... exit_group resumed>) = ? [pid 5882] chdir("./3" [pid 5854] <... close resumed>) = 0 [pid 5880] <... ioctl resumed>) = 0 [pid 5882] <... chdir resumed>) = 0 [pid 5854] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5880] close(3./strace-static-x86_64: Process 5883 attached [pid 5882] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5880] <... close resumed>) = 0 [pid 5882] <... prctl resumed>) = 0 [pid 5880] close(4 [pid 5879] chdir("./file0" [pid 5854] <... clone resumed>, child_tidptr=0x555583204650) = 5883 [pid 5883] set_robust_list(0x555583204660, 24 [pid 5880] <... close resumed>) = 0 [pid 5882] setpgid(0, 0 [pid 5880] mkdir("./file0", 0777 [pid 5882] <... setpgid resumed>) = 0 [pid 5880] <... mkdir resumed>) = 0 [pid 5879] <... chdir resumed>) = 0 [pid 5879] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5880] mount("/dev/loop4", "./file0", "jfs", 0, "nointegrity,errors=remount-ro," [pid 5879] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5883] <... set_robust_list resumed>) = 0 [pid 5882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5883] chdir("./3" [pid 5879] exit_group(0 [pid 5882] <... openat resumed>) = 3 [pid 5882] write(3, "1000", 4 [pid 5883] <... chdir resumed>) = 0 [pid 5882] <... write resumed>) = 4 [pid 5879] <... exit_group resumed>) = ? executing program [pid 5883] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5882] close(3 [pid 5883] <... prctl resumed>) = 0 [pid 5882] <... close resumed>) = 0 [pid 5883] setpgid(0, 0 [pid 5882] symlink("/dev/binderfs", "./binderfs" [pid 5883] <... setpgid resumed>) = 0 [pid 5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5882] <... symlink resumed>) = 0 [pid 5879] +++ exited with 0 +++ [pid 5858] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 s */} --- [pid 5882] write(1, "executing program\n", 18 [pid 5883] <... openat resumed>) = 3 [pid 5882] <... write resumed>) = 18 [pid 5878] +++ exited with 0 +++ [ 96.010623][ T5880] loop4: detected capacity change from 0 to 32768 [pid 5858] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5855] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5878, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=28 /* 0.28 s */} --- [pid 5883] write(3, "1000", 4 [pid 5882] memfd_create("syzkaller", 0 [pid 5855] restart_syscall(<... resuming interrupted clone ...> [pid 5883] <... write resumed>) = 4 [pid 5855] <... restart_syscall resumed>) = 0 [pid 5883] close(3) = 0 [pid 5883] symlink("/dev/binderfs", "./binderfs" [pid 5882] <... memfd_create resumed>) = 3 [pid 5858] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5858] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5855] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5883] <... symlink resumed>) = 0 executing program [pid 5883] write(1, "executing program\n", 18 [pid 5882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5880] <... mount resumed>) = 0 [pid 5858] <... openat resumed>) = 3 [pid 5855] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5883] <... write resumed>) = 18 [pid 5882] <... mmap resumed>) = 0x7fd928800000 [pid 5855] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5883] memfd_create("syzkaller", 0 [pid 5880] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5858] newfstatat(3, "", [pid 5855] <... openat resumed>) = 3 [pid 5883] <... memfd_create resumed>) = 3 [pid 5855] newfstatat(3, "", [pid 5883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5855] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5883] <... mmap resumed>) = 0x7fd928800000 [pid 5880] <... openat resumed>) = 3 [pid 5858] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5855] getdents64(3, 0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5858] getdents64(3, [pid 5880] chdir("./file0" [pid 5855] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5858] <... getdents64 resumed>0x5555832056f0 /* 4 entries */, 32768) = 112 [pid 5880] <... chdir resumed>) = 0 [pid 5880] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5858] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5880] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5880] exit_group(0) = ? [pid 5880] +++ exited with 0 +++ [pid 5857] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5880, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=19 /* 0.19 s */} --- [pid 5857] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5857] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5857] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5857] getdents64(3, 0x5555832056f0 /* 4 entries */, 32768) = 112 [ 96.123280][ T5858] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN NOPTI [ 96.135416][ T5858] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 96.143835][ T5858] CPU: 1 UID: 0 PID: 5858 Comm: syz-executor311 Not tainted 6.16.0-rc4-syzkaller-00308-ga79a588fc176 #0 PREEMPT(full) [ 96.156256][ T5858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 96.166329][ T5858] RIP: 0010:lmLogSync+0x22e/0x9d0 [ 96.171395][ T5858] Code: df b6 fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 b0 9c e3 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 94 9c e3 fe 49 8b 3f e8 ac df b6 fe [ 96.191016][ T5858] RSP: 0018:ffffc9000445fa80 EFLAGS: 00010216 [ 96.197097][ T5858] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff888022bf9e00 [ 96.205072][ T5858] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 96.213046][ T5858] RBP: ffffc9000445fb88 R08: ffffc9000445f9df R09: ffffc9000445f868 [ 96.221023][ T5858] R10: dffffc0000000000 R11: fffff5200088bf3c R12: ffff888029ef1800 [ 96.229000][ T5858] R13: dffffc0000000000 R14: ffff8880277d1238 R15: 0000000000000030 [ 96.236975][ T5858] FS: 0000555583204380(0000) GS:ffff888125d1c000(0000) knlGS:0000000000000000 [ 96.245900][ T5858] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.252474][ T5858] CR2: 00007fd92899b000 CR3: 0000000077ec0000 CR4: 0000000000350ef0 [ 96.260439][ T5858] Call Trace: [ 96.263707][ T5858] [ 96.266629][ T5858] ? __pfx___mutex_lock+0x10/0x10 [ 96.271665][ T5858] ? __pfx_lmLogSync+0x10/0x10 [ 96.276427][ T5858] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 96.282334][ T5858] ? __pfx___writeback_inodes_sb_nr+0x10/0x10 [ 96.288396][ T5858] jfs_syncpt+0x7b/0x90 [ 96.292552][ T5858] jfs_sync_fs+0x87/0xa0 [ 96.296800][ T5858] sync_filesystem+0xee/0x230 [ 96.301484][ T5858] generic_shutdown_super+0x6f/0x2c0 [ 96.306771][ T5858] kill_block_super+0x44/0x90 [ 96.311445][ T5858] deactivate_locked_super+0xbc/0x130 [ 96.316810][ T5858] cleanup_mnt+0x425/0x4c0 [ 96.321221][ T5858] ? srso_alias_return_thunk+0x5/0xfbef5 [ 96.326848][ T5858] ? lockdep_hardirqs_on+0x9c/0x150 [ 96.332037][ T5858] task_work_run+0x1d4/0x260 [ 96.336634][ T5858] ? __pfx_task_work_run+0x10/0x10 [ 96.341747][ T5858] ? __x64_sys_umount+0x122/0x160 [ 96.346771][ T5858] ptrace_notify+0x281/0x2c0 [ 96.351360][ T5858] ? __pfx_ptrace_notify+0x10/0x10 [ 96.356466][ T5858] ? srso_alias_return_thunk+0x5/0xfbef5 [ 96.362099][ T5858] ? __x64_sys_umount+0x122/0x160 [ 96.367122][ T5858] ? __pfx___x64_sys_umount+0x10/0x10 [ 96.372490][ T5858] ? rcu_is_watching+0x15/0xb0 [ 96.377252][ T5858] syscall_exit_work+0xc6/0x1d0 [ 96.382098][ T5858] do_syscall_64+0x2ad/0x3b0 [ 96.386680][ T5858] ? lockdep_hardirqs_on+0x9c/0x150 [ 96.391871][ T5858] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 96.397930][ T5858] ? srso_alias_return_thunk+0x5/0xfbef5 [ 96.403559][ T5858] ? exc_page_fault+0x9f/0xf0 [ 96.408243][ T5858] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 96.414129][ T5858] RIP: 0033:0x7fd930e11477 [ 96.418537][ T5858] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 96.438145][ T5858] RSP: 002b:00007fff2808f928 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 96.446573][ T5858] RAX: 0000000000000000 RBX: 0000000000017189 RCX: 00007fd930e11477 [ 96.454537][ T5858] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2808f9e0 [ 96.462500][ T5858] RBP: 00007fff2808f9e0 R08: 0000000000000000 R09: 0000000000000000 [ 96.470463][ T5858] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff28090a50 [ 96.478424][ T5858] R13: 00005555832056c0 R14: 0000000000000003 R15: 431bde82d7b634db [ 96.486398][ T5858] [ 96.489403][ T5858] Modules linked in: [ 96.493738][ T5858] ---[ end trace 0000000000000000 ]--- [pid 5857] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [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 5881] <... write resumed>) = 16777216 [ 96.552989][ T5858] RIP: 0010:lmLogSync+0x22e/0x9d0 [ 96.579380][ T5858] Code: df b6 fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 b0 9c e3 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 94 9c e3 fe 49 8b 3f e8 ac df b6 fe [ 96.599094][ T5858] RSP: 0018:ffffc9000445fa80 EFLAGS: 00010216 [ 96.605221][ T5858] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff888022bf9e00 [ 96.613397][ T5858] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 96.621566][ T5858] RBP: ffffc9000445fb88 R08: ffffc9000445f9df R09: ffffc9000445f868 [pid 5881] munmap(0x7fd928800000, 138412032) = 0 [pid 5881] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5881] ioctl(4, LOOP_SET_FD, 3) = 0 [ 96.629740][ T5858] R10: dffffc0000000000 R11: fffff5200088bf3c R12: ffff888029ef1800 [ 96.637728][ T5858] R13: dffffc0000000000 R14: ffff8880277d1238 R15: 0000000000000030 [ 96.650124][ T5881] loop3: detected capacity change from 0 to 32768 [pid 5881] close(3) = 0 [pid 5881] close(4) = 0 [pid 5881] mkdir("./file0", 0777) = 0 [ 96.689487][ T5858] FS: 0000555583204380(0000) GS:ffff888125d1c000(0000) knlGS:0000000000000000 [ 96.718052][ T5858] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.735384][ T5858] CR2: 00007fd9297ff000 CR3: 0000000077ec0000 CR4: 0000000000350ef0 [ 96.760295][ T5858] Kernel panic - not syncing: Fatal exception [ 96.766617][ T5858] Kernel Offset: disabled [ 96.770935][ T5858] Rebooting in 86400 seconds..