./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4043379351 <...> = 0 [pid 5400] <... symlink resumed>) = 0 [pid 5399] <... openat resumed>) = 3 [pid 5397] exit_group(0 [pid 5045] lstat("./54/cgroup.net", [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5401] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5400] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5399] write(3, "1000", 4 [pid 5397] <... exit_group resumed>) = ? [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] unlink("./49/binderfs" [pid 5401] <... symlink resumed>) = 0 [pid 5400] <... symlink resumed>) = 0 [pid 5399] <... write resumed>) = 4 [pid 5397] +++ exited with 0 +++ [pid 5045] unlink("./54/cgroup.net" [pid 5042] <... unlink resumed>) = 0 [pid 5401] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5400] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5399] close(3 [pid 5045] <... unlink resumed>) = 0 [pid 5042] umount2("./49/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] <... symlink resumed>) = 0 [pid 5400] <... symlink resumed>) = 0 [pid 5399] <... close resumed>) = 0 [pid 5045] umount2("./54/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5401] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5399] read(200, [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] lstat("./49/cgroup.net", [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5401] <... symlink resumed>) = 0 [pid 5400] <... openat resumed>) = 3 [pid 5399] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5045] lstat("./54/cgroup.cpu", [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... restart_syscall resumed>) = 0 [pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5400] write(3, "1000", 4 [pid 5399] symlink("/dev/binderfs", "./binderfs" [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] unlink("./49/cgroup.net" [pid 5401] <... openat resumed>) = 3 [pid 5400] <... write resumed>) = 4 [pid 5399] <... symlink resumed>) = 0 [pid 5045] unlink("./54/cgroup.cpu" [pid 5042] <... unlink resumed>) = 0 [pid 5401] write(3, "1000", 4 [pid 5400] close(3 [pid 5399] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5045] <... unlink resumed>) = 0 [pid 5042] umount2("./49/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] <... write resumed>) = 4 [pid 5400] <... close resumed>) = 0 [pid 5399] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./54/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5401] close(3 [pid 5400] read(200, [pid 5399] close(3 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] lstat("./49/cgroup.cpu", [pid 5039] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5401] <... close resumed>) = 0 [pid 5400] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./54/cgroup", [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5401] read(200, [pid 5400] symlink("/dev/binderfs", "./binderfs" [pid 5399] close(4 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] unlink("./49/cgroup.cpu" [pid 5039] fstat(3, [pid 5401] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5400] <... symlink resumed>) = 0 [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./54/cgroup" [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5401] symlink("/dev/binderfs", "./binderfs" [pid 5400] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5399] close(5 [pid 5045] <... unlink resumed>) = 0 [pid 5042] umount2("./49/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] getdents64(3, [pid 5401] <... symlink resumed>) = 0 [pid 5400] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5401] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5400] close(3 [pid 5399] close(6 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] lstat("./49/cgroup", [pid 5039] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5401] close(3 [pid 5400] close(4 [pid 5399] close(7 [pid 5045] <... close resumed>) = 0 [pid 5042] unlink("./49/cgroup" [pid 5039] lstat("./45/binderfs", [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./54" [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5401] close(4 [pid 5400] close(5 [pid 5399] close(8 [pid 5045] <... rmdir resumed>) = 0 [pid 5042] getdents64(3, [pid 5039] unlink("./45/binderfs" [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./55", 0777 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5401] close(5 [pid 5400] close(6 [pid 5399] close(9 [pid 5045] <... mkdir resumed>) = 0 [pid 5042] close(3 [pid 5039] umount2("./45/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... close resumed>) = 0 [pid 5401] close(6 [pid 5400] close(7 [pid 5399] close(10 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] rmdir("./49" [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5402 attached [pid 5401] close(7 [pid 5400] close(8 [pid 5399] close(11 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 57 [pid 5042] <... rmdir resumed>) = 0 [pid 5039] lstat("./45/cgroup.net", [pid 5402] set_robust_list(0x555556f426e0, 24 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... set_robust_list resumed>) = 0 [pid 5401] close(8 [pid 5400] close(9 [pid 5399] close(12 [pid 5042] mkdir("./50", 0777 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5402] chdir("./55" [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... chdir resumed>) = 0 [pid 5401] close(9 [pid 5400] close(10 [pid 5399] close(13 [pid 5042] <... mkdir resumed>) = 0 [pid 5039] unlink("./45/cgroup.net" [pid 5402] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5401] close(10 [pid 5039] <... unlink resumed>) = 0 [pid 5400] close(11 [pid 5399] close(14./strace-static-x86_64: Process 5403 attached [pid 5402] <... prctl resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./45/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5403] set_robust_list(0x555556f426e0, 24) = 0 [pid 5401] close(11 [pid 5400] close(12 [pid 5399] close(15 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5403] chdir("./50" [pid 5402] setpgid(0, 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 52 [pid 5403] <... chdir resumed>) = 0 [pid 5402] <... setpgid resumed>) = 0 [pid 5401] close(12 [pid 5400] close(13 [pid 5399] close(16 [pid 5039] lstat("./45/cgroup.cpu", [pid 5403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5402] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] <... prctl resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5403] setpgid(0, 0 [pid 5402] <... symlink resumed>) = 0 [pid 5401] close(13 [pid 5400] close(14 [pid 5399] close(17 [pid 5403] <... setpgid resumed>) = 0 [pid 5402] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./45/cgroup.cpu" [pid 5403] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5402] <... symlink resumed>) = 0 [pid 5401] close(14 [pid 5403] <... symlink resumed>) = 0 [pid 5400] close(15 [pid 5399] close(18 [pid 5039] <... unlink resumed>) = 0 [pid 5403] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5402] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./45/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5403] <... symlink resumed>) = 0 [pid 5403] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5402] <... symlink resumed>) = 0 [pid 5401] close(15 [pid 5400] close(16 [pid 5399] close(19 [pid 5403] <... symlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5403] <... openat resumed>) = 3 [pid 5403] write(3, "1000", 4) = 4 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(3) = 0 [pid 5403] read(200, 0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5403] symlink("/dev/binderfs", "./binderfs" [pid 5401] close(16 [pid 5400] close(17 [pid 5399] close(20 [pid 5039] lstat("./45/cgroup", [pid 5403] <... symlink resumed>) = 0 [pid 5402] <... openat resumed>) = 3 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5402] write(3, "1000", 4 [pid 5401] close(17 [pid 5400] close(18 [pid 5399] close(21 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5403] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... write resumed>) = 4 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./45/cgroup" [pid 5403] close(3 [pid 5402] close(3 [pid 5401] close(18 [pid 5400] close(19 [pid 5399] close(22 [pid 5039] <... unlink resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] getdents64(3, [pid 5403] close(4 [pid 5402] read(200, [pid 5401] close(19 [pid 5400] close(20 [pid 5399] close(23 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] close(3 [pid 5403] close(5 [pid 5402] symlink("/dev/binderfs", "./binderfs" [pid 5401] close(20 [pid 5400] close(21 [pid 5399] close(24 [pid 5039] <... close resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... symlink resumed>) = 0 [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] rmdir("./45" [pid 5403] close(6 [pid 5402] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5401] close(21 [pid 5400] close(22 [pid 5399] close(25 [pid 5039] <... rmdir resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] mkdir("./46", 0777 [pid 5403] close(7 [pid 5402] close(3 [pid 5401] close(22 [pid 5400] close(23 [pid 5399] close(26 [pid 5039] <... mkdir resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5403] close(8 [pid 5402] close(4 [pid 5401] close(23 [pid 5400] close(24 [pid 5399] close(27./strace-static-x86_64: Process 5404 attached [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(9 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 48 [pid 5404] set_robust_list(0x555556f426e0, 24 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(5 [pid 5401] close(24 [pid 5400] close(25 [pid 5399] close(28 [pid 5404] <... set_robust_list resumed>) = 0 [pid 5403] close(10 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] chdir("./46" [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(6 [pid 5401] close(25 [pid 5400] close(26 [pid 5399] close(29 [pid 5404] <... chdir resumed>) = 0 [pid 5403] close(11 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5404] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(7 [pid 5401] close(26 [pid 5400] close(27 [pid 5399] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5404] <... prctl resumed>) = 0 [pid 5403] close(12 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... write resumed>) = 335 [pid 5404] setpgid(0, 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(8 [pid 5401] close(27 [pid 5400] close(28 [pid 5399] exit_group(0 [pid 5404] <... setpgid resumed>) = 0 [pid 5403] close(13 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5399] <... exit_group resumed>) = ? [pid 5404] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(9 [pid 5401] close(28 [pid 5400] close(29 [pid 5404] <... symlink resumed>) = 0 [pid 5403] close(14 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5402] close(10 [pid 5399] +++ exited with 0 +++ [pid 5401] close(29 [pid 5400] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5404] <... symlink resumed>) = 0 [pid 5403] close(15 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5400] <... write resumed>) = 335 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5404] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(11 [pid 5401] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5400] exit_group(0 [pid 5404] <... symlink resumed>) = 0 [pid 5403] close(16 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] <... write resumed>) = 335 [pid 5400] <... exit_group resumed>) = ? [pid 5404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(12 [pid 5401] exit_group(0 [pid 5403] close(17) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] <... openat resumed>) = 3 [pid 5403] close(18 [pid 5401] <... exit_group resumed>) = ? [pid 5043] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(13 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5403] close(19 [pid 5043] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... openat resumed>) = 3 [pid 5403] close(20 [pid 5043] fstat(3, [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5401] +++ exited with 0 +++ [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5404] write(3, "1000", 4 [pid 5403] close(21 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5404] <... write resumed>) = 4 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(14 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5404] close(3 [pid 5403] close(22 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5404] <... close resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(15 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5404] read(200, [pid 5403] close(23 [pid 5400] +++ exited with 0 +++ [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./50/binderfs", [pid 5404] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(16 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5404] symlink("/dev/binderfs", "./binderfs" [pid 5403] close(24 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] unlink("./50/binderfs" [pid 5040] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5404] <... symlink resumed>) = 0 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(17 [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5404] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5403] close(25 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... restart_syscall resumed>) = 0 [pid 5043] umount2("./50/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... openat resumed>) = 3 [pid 5404] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(26 [pid 5402] close(18 [pid 5043] lstat("./50/cgroup.net", [pid 5040] fstat(3, [pid 5404] close(3 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(27 [pid 5402] close(19 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./50/cgroup.net" [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5404] close(4 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... unlink resumed>) = 0 [pid 5040] getdents64(3, [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(28 [pid 5402] close(20 [pid 5044] <... openat resumed>) = 3 [pid 5043] umount2("./50/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5404] close(5 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] fstat(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] close(29 [pid 5402] close(21 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] lstat("./50/cgroup.cpu", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5404] close(6 [pid 5403] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./48/binderfs", [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5403] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5402] close(22 [pid 5404] close(7 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] unlink("./50/cgroup.cpu" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] <... write resumed>) = 335 [pid 5402] close(23 [pid 5044] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5404] close(8 [pid 5403] exit_group(0 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./48/binderfs" [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5403] <... exit_group resumed>) = ? [pid 5402] close(24 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./50/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5404] close(9 [pid 5403] +++ exited with 0 +++ [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(25 [pid 5044] lstat("./53/binderfs", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./48/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5404] close(10 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(26 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] lstat("./50/cgroup", [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5404] close(11 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./53/binderfs" [pid 5042] <... restart_syscall resumed>) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(27 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] lstat("./48/cgroup.net", [pid 5404] close(12 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./50/cgroup" [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(28write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] umount2("./53/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5404] close(13 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] close(29 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] unlink("./48/cgroup.net" [pid 5404] close(14 [pid 5402] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] lstat("./53/cgroup.net", [pid 5043] getdents64(3, [pid 5042] fstat(3, [pid 5040] <... unlink resumed>) = 0 [pid 5404] close(15 [pid 5402] <... write resumed>) = 335 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] exit_group(0 [pid 5042] getdents64(3, [pid 5040] umount2("./48/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5404] close(16 [pid 5402] <... exit_group resumed>) = ? [pid 5044] unlink("./53/cgroup.net" [pid 5043] close(3 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5402] +++ exited with 0 +++ [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5404] close(17 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5044] umount2("./53/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] rmdir("./50" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... rmdir resumed>) = 0 [pid 5042] lstat("./50/binderfs", [pid 5040] lstat("./48/cgroup.cpu", [pid 5404] close(18 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] mkdir("./51", 0777 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./53/cgroup.cpu", [pid 5043] <... mkdir resumed>) = 0 [pid 5042] unlink("./50/binderfs" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5404] close(19 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5405 attached [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] umount2("./50/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] unlink("./48/cgroup.cpu" [pid 5405] set_robust_list(0x555556f426e0, 24 [pid 5404] close(20 [pid 5045] <... openat resumed>) = 3 [pid 5044] unlink("./53/cgroup.cpu" [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 53 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5405] <... set_robust_list resumed>) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5042] lstat("./50/cgroup.net", [pid 5040] <... unlink resumed>) = 0 [pid 5405] chdir("./51" [pid 5404] close(21 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./48/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5405] <... chdir resumed>) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] umount2("./53/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] unlink("./50/cgroup.net" [pid 5405] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5404] close(22 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5405] <... prctl resumed>) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] umount2("./50/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5405] setpgid(0, 0 [pid 5404] close(23 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./53/cgroup", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./48/cgroup", [pid 5405] <... setpgid resumed>) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./55/binderfs", [pid 5042] lstat("./50/cgroup.cpu", [pid 5405] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5404] close(24 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5405] <... symlink resumed>) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./55/binderfs" [pid 5044] unlink("./53/cgroup" [pid 5042] unlink("./50/cgroup.cpu" [pid 5405] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5404] close(25 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./48/cgroup" [pid 5405] <... symlink resumed>) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./55/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] getdents64(3, [pid 5042] umount2("./50/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5405] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5404] close(26 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5405] <... symlink resumed>) = 0 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./55/cgroup.net", [pid 5042] lstat("./50/cgroup", [pid 5044] close(3 [pid 5040] getdents64(3, [pid 5405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5404] close(27 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... close resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5405] <... openat resumed>) = 3 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./55/cgroup.net" [pid 5044] rmdir("./53" [pid 5042] unlink("./50/cgroup" [pid 5405] write(3, "1000", 4 [pid 5404] close(28 [pid 5045] <... unlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] close(3 [pid 5405] <... write resumed>) = 4 [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./55/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] getdents64(3, [pid 5405] close(3 [pid 5404] close(29 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... rmdir resumed>) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... close resumed>) = 0 [pid 5405] <... close resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5404] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./55/cgroup.cpu", [pid 5044] mkdir("./54", 0777 [pid 5042] close(3 [pid 5040] rmdir("./48" [pid 5405] read(200, [pid 5404] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... close resumed>) = 0 [pid 5405] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5404] <... write resumed>) = 335 [pid 5045] unlink("./55/cgroup.cpu" [pid 5044] <... mkdir resumed>) = 0 [pid 5042] rmdir("./50" [pid 5040] <... rmdir resumed>) = 0 [pid 5405] symlink("/dev/binderfs", "./binderfs" [pid 5404] exit_group(0 [pid 5045] <... unlink resumed>) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... rmdir resumed>) = 0 [pid 5040] mkdir("./49", 0777./strace-static-x86_64: Process 5406 attached [pid 5405] <... symlink resumed>) = 0 [pid 5404] <... exit_group resumed>) = ? [pid 5045] umount2("./55/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] mkdir("./51", 0777 [pid 5406] set_robust_list(0x555556f426e0, 24 [pid 5405] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5404] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 56 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] <... mkdir resumed>) = 0 [pid 5406] <... set_robust_list resumed>) = 0 [pid 5405] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./55/cgroup", [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5406] chdir("./54" [pid 5405] close(3 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5407 attached [pid 5406] <... chdir resumed>) = 0 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./55/cgroup" [pid 5407] set_robust_list(0x555556f426e0, 24 [pid 5406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5405] close(4 [pid 5045] <... unlink resumed>) = 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 53 ./strace-static-x86_64: Process 5408 attached [pid 5407] <... set_robust_list resumed>) = 0 [pid 5406] <... prctl resumed>) = 0 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5408] set_robust_list(0x555556f426e0, 24 [pid 5407] chdir("./51" [pid 5406] setpgid(0, 0 [pid 5405] close(5 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5408] <... set_robust_list resumed>) = 0 [pid 5407] <... chdir resumed>) = 0 [pid 5406] <... setpgid resumed>) = 0 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 51 [pid 5408] chdir("./49" [pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5406] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5405] close(6 [pid 5045] <... close resumed>) = 0 [pid 5039] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] <... prctl resumed>) = 0 [pid 5406] <... symlink resumed>) = 0 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./55" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5408] <... chdir resumed>) = 0 [pid 5407] setpgid(0, 0 [pid 5406] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5405] close(7 [pid 5045] <... rmdir resumed>) = 0 [pid 5039] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5407] <... setpgid resumed>) = 0 [pid 5406] <... symlink resumed>) = 0 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./56", 0777 [pid 5039] <... openat resumed>) = 3 [pid 5408] <... prctl resumed>) = 0 [pid 5407] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5406] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5405] close(8 [pid 5045] <... mkdir resumed>) = 0 [pid 5039] fstat(3, [pid 5408] setpgid(0, 0 [pid 5407] <... symlink resumed>) = 0 [pid 5406] <... symlink resumed>) = 0 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 ./strace-static-x86_64: Process 5409 attached [pid 5408] <... setpgid resumed>) = 0 [pid 5407] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5405] close(9 [pid 5039] getdents64(3, [pid 5409] set_robust_list(0x555556f426e0, 24 [pid 5408] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5407] <... symlink resumed>) = 0 [pid 5406] <... openat resumed>) = 3 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 58 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5409] <... set_robust_list resumed>) = 0 [pid 5408] <... symlink resumed>) = 0 [pid 5407] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5406] write(3, "1000", 4 [pid 5405] close(10 [pid 5039] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] chdir("./56" [pid 5408] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5407] <... symlink resumed>) = 0 [pid 5406] <... write resumed>) = 4 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5409] <... chdir resumed>) = 0 [pid 5408] <... symlink resumed>) = 0 [pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5406] close(3 [pid 5405] close(11 [pid 5039] lstat("./46/binderfs", [pid 5409] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5408] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5407] <... openat resumed>) = 3 [pid 5406] <... close resumed>) = 0 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5409] <... prctl resumed>) = 0 [pid 5408] <... symlink resumed>) = 0 [pid 5407] write(3, "1000", 4 [pid 5406] read(200, [pid 5405] close(12 [pid 5039] unlink("./46/binderfs" [pid 5409] setpgid(0, 0 [pid 5408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5407] <... write resumed>) = 4 [pid 5406] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5409] <... setpgid resumed>) = 0 [pid 5408] <... openat resumed>) = 3 [pid 5407] close(3 [pid 5406] symlink("/dev/binderfs", "./binderfs" [pid 5405] close(13 [pid 5039] umount2("./46/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5408] write(3, "1000", 4 [pid 5407] <... close resumed>) = 0 [pid 5406] <... symlink resumed>) = 0 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5407] read(200, [pid 5406] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5405] close(14 [pid 5039] lstat("./46/cgroup.net", [pid 5409] <... symlink resumed>) = 0 [pid 5408] <... write resumed>) = 4 [pid 5407] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5406] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5409] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5408] close(3 [pid 5407] symlink("/dev/binderfs", "./binderfs" [pid 5406] close(3 [pid 5405] close(15 [pid 5409] <... symlink resumed>) = 0 [pid 5408] <... close resumed>) = 0 [pid 5409] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5408] read(200, [pid 5409] <... symlink resumed>) = 0 [pid 5408] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5408] symlink("/dev/binderfs", "./binderfs" [pid 5409] <... openat resumed>) = 3 [pid 5408] <... symlink resumed>) = 0 [pid 5039] unlink("./46/cgroup.net" [pid 5409] write(3, "1000", 4 [pid 5408] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5407] <... symlink resumed>) = 0 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... write resumed>) = 4 [pid 5408] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(4 [pid 5039] <... unlink resumed>) = 0 [pid 5409] close(3 [pid 5408] close(3 [pid 5407] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(16 [pid 5039] umount2("./46/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] <... close resumed>) = 0 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(5 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] read(200, [pid 5408] close(4 [pid 5407] close(3 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(17 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5409] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] symlink("/dev/binderfs", "./binderfs" [pid 5408] close(5 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(6 [pid 5039] lstat("./46/cgroup.cpu", [pid 5409] <... symlink resumed>) = 0 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(4 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(18 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5409] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5408] close(6 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(7 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(3 [pid 5408] close(7 [pid 5407] close(5 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(19 [pid 5039] unlink("./46/cgroup.cpu" [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(4 [pid 5408] close(8 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(8 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(6 [pid 5405] close(20 [pid 5039] <... unlink resumed>) = 0 [pid 5409] close(5 [pid 5408] close(9 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(9 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./46/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] close(6 [pid 5408] close(10 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(7 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(7 [pid 5408] close(11 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(10 [pid 5405] close(21 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(8 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./46/cgroup", [pid 5409] close(8 [pid 5408] close(12 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(11 [pid 5405] close(22 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(9 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./46/cgroup" [pid 5409] close(9 [pid 5408] close(13 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(12 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(10 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(23 [pid 5039] <... unlink resumed>) = 0 [pid 5409] close(10 [pid 5408] close(14 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(13 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(11 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] getdents64(3, [pid 5409] close(11 [pid 5408] close(15 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(14 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(12 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(12 [pid 5408] close(16 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(15 [pid 5405] close(24 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(13 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(13 [pid 5408] close(17 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(16 [pid 5405] close(25 [pid 5039] close(3 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(14 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... close resumed>) = 0 [pid 5409] close(14 [pid 5408] close(18 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(17 [pid 5405] close(26 [pid 5039] rmdir("./46" [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(15 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... rmdir resumed>) = 0 [pid 5409] close(15 [pid 5408] close(19 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(18 [pid 5405] close(27 [pid 5039] mkdir("./47", 0777 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(16 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... mkdir resumed>) = 0 [pid 5405] close(28 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5410 attached [pid 5409] close(16 [pid 5408] close(20 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(19 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] set_robust_list(0x555556f426e0, 24 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(17 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] close(29 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 49 [pid 5410] <... set_robust_list resumed>) = 0 [pid 5409] close(17write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5408] close(21 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(20 [pid 5405] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] chdir("./47" [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5410] <... chdir resumed>) = 0 [pid 5409] close(18 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(18 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] <... write resumed>) = 335 [pid 5410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(22 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(21 [pid 5405] exit_group(0 [pid 5410] <... prctl resumed>) = 0 [pid 5405] <... exit_group resumed>) = ? [pid 5410] setpgid(0, 0 [pid 5409] close(19 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(19 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5405] +++ exited with 0 +++ [pid 5410] <... setpgid resumed>) = 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(23 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] close(22 [pid 5410] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5409] close(20 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(20 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... symlink resumed>) = 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(24 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5410] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5409] close(21 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(21 [pid 5406] close(23 [pid 5043] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5410] <... symlink resumed>) = 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(25 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5409] close(22 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(22 [pid 5406] close(24 [pid 5043] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... symlink resumed>) = 0 [pid 5407] close(23 [pid 5406] close(25 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(26 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... openat resumed>) = 3 [pid 5410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5409] close(23 [pid 5407] close(24 [pid 5406] close(26 [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5410] <... openat resumed>) = 3 [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, [pid 5410] write(3, "1000", 4 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] close(27 [pid 5407] close(25 [pid 5406] close(27 [pid 5410] <... write resumed>) = 4 [pid 5409] close(24 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5410] close(3 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(26 [pid 5406] close(28 [pid 5410] <... close resumed>) = 0 [pid 5409] close(25 [pid 5408] close(28 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5410] read(200, [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(27 [pid 5406] close(29write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5410] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5409] close(26 [pid 5408] close(29 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5410] symlink("/dev/binderfs", "./binderfs" [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] close(28 [pid 5406] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5409] close(27 [pid 5408] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... write resumed>) = 335 [pid 5043] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5410] <... symlink resumed>) = 0 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] <... write resumed>) = 335 [pid 5407] close(29 [pid 5406] exit_group(0 [pid 5409] close(28 [pid 5407] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5406] <... exit_group resumed>) = ? [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5408] exit_group(0 [pid 5407] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5406] +++ exited with 0 +++ [pid 5043] lstat("./51/binderfs", [pid 5407] <... write resumed>) = 335 [pid 5410] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] close(29 [pid 5408] <... exit_group resumed>) = ? [pid 5407] exit_group(0 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5410] close(3 [pid 5409] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5407] <... exit_group resumed>) = ? [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5407] +++ exited with 0 +++ write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] <... restart_syscall resumed>) = 0 [pid 5043] unlink("./51/binderfs" [pid 5410] close(4 [pid 5044] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... write resumed>) = 335 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5410] close(5 [pid 5409] exit_group(0 [pid 5408] +++ exited with 0 +++ [pid 5044] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] umount2("./51/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... restart_syscall resumed>) = 0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5409] <... exit_group resumed>) = ? [pid 5044] <... openat resumed>) = 3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5410] close(6 [pid 5409] +++ exited with 0 +++ [pid 5044] fstat(3, [pid 5043] lstat("./51/cgroup.net", [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5410] close(7 [pid 5044] getdents64(3, [pid 5043] unlink("./51/cgroup.net" [pid 5042] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] close(8 [pid 5045] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./51/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... openat resumed>) = 3 [pid 5410] close(9 [pid 5045] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] lstat("./54/binderfs", [pid 5043] lstat("./51/cgroup.cpu", [pid 5040] fstat(3, [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5410] close(10 [pid 5045] fstat(3, [pid 5044] unlink("./54/binderfs" [pid 5043] unlink("./51/cgroup.cpu" [pid 5040] getdents64(3, [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5410] close(11 [pid 5045] getdents64(3, [pid 5044] umount2("./54/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./51/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] fstat(3, [pid 5040] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] close(12 [pid 5045] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./54/cgroup.net", [pid 5043] lstat("./51/cgroup", [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] lstat("./49/binderfs", [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] getdents64(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5410] close(13 [pid 5045] lstat("./56/binderfs", [pid 5044] unlink("./54/cgroup.net" [pid 5043] unlink("./51/cgroup" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] unlink("./49/binderfs" [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5410] close(14 [pid 5045] unlink("./56/binderfs" [pid 5044] umount2("./54/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] getdents64(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./49/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] lstat("./51/binderfs", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] close(15 [pid 5045] umount2("./56/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./54/cgroup.cpu", [pid 5043] close(3 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] lstat("./49/cgroup.net", [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] unlink("./51/binderfs" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5410] close(16 [pid 5045] lstat("./56/cgroup.net", [pid 5044] unlink("./54/cgroup.cpu" [pid 5043] rmdir("./51" [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./49/cgroup.net" [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5042] umount2("./51/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5410] close(17 [pid 5045] unlink("./56/cgroup.net" [pid 5044] umount2("./54/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] mkdir("./52", 0777 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./49/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... mkdir resumed>) = 0 [pid 5042] lstat("./51/cgroup.net", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] close(18 [pid 5045] umount2("./56/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./54/cgroup", [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./49/cgroup.cpu", [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5410] close(19 [pid 5045] lstat("./56/cgroup.cpu", [pid 5044] unlink("./54/cgroup" [pid 5042] unlink("./51/cgroup.net" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5410] close(20./strace-static-x86_64: Process 5411 attached ) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./56/cgroup.cpu" [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./49/cgroup.cpu" [pid 5411] set_robust_list(0x555556f426e0, 24 [pid 5410] close(21 [pid 5045] <... unlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 54 [pid 5042] umount2("./51/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5411] <... set_robust_list resumed>) = 0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./56/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5410] close(22 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5042] lstat("./51/cgroup.cpu", [pid 5040] umount2("./49/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5411] chdir("./52" [pid 5410] close(23 [pid 5045] lstat("./56/cgroup", [pid 5044] <... close resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5411] <... chdir resumed>) = 0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] rmdir("./54" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5410] close(24 [pid 5045] unlink("./56/cgroup" [pid 5044] <... rmdir resumed>) = 0 [pid 5042] unlink("./51/cgroup.cpu" [pid 5040] lstat("./49/cgroup", [pid 5411] <... prctl resumed>) = 0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] mkdir("./55", 0777 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5411] setpgid(0, 0 [pid 5410] close(25 [pid 5045] getdents64(3, [pid 5044] <... mkdir resumed>) = 0 [pid 5042] umount2("./51/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] unlink("./49/cgroup" [pid 5411] <... setpgid resumed>) = 0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5412 attached [pid 5411] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5410] close(26 [pid 5045] close(3 [pid 5040] getdents64(3, [pid 5412] set_robust_list(0x555556f426e0, 24 [pid 5411] <... symlink resumed>) = 0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 57 [pid 5042] lstat("./51/cgroup", [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5412] <... set_robust_list resumed>) = 0 [pid 5411] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5410] close(27 [pid 5045] rmdir("./56" [pid 5040] close(3 [pid 5412] chdir("./55" [pid 5411] <... symlink resumed>) = 0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... close resumed>) = 0 [pid 5412] <... chdir resumed>) = 0 [pid 5411] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5410] close(28 [pid 5045] mkdir("./57", 0777 [pid 5042] unlink("./51/cgroup" [pid 5040] rmdir("./49" [pid 5412] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5411] <... symlink resumed>) = 0 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... rmdir resumed>) = 0 [pid 5412] <... prctl resumed>) = 0 [pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5410] close(29 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] getdents64(3, [pid 5040] mkdir("./50", 0777./strace-static-x86_64: Process 5413 attached [pid 5412] setpgid(0, 0 [pid 5411] <... openat resumed>) = 3 [pid 5410] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... mkdir resumed>) = 0 [pid 5413] set_robust_list(0x555556f426e0, 24 [pid 5412] <... setpgid resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5411] write(3, "1000", 4 [pid 5410] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 59 [pid 5042] close(3 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5413] <... set_robust_list resumed>) = 0 [pid 5412] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5411] <... write resumed>) = 4 [pid 5410] <... write resumed>) = 335 [pid 5042] <... close resumed>) = 0 ./strace-static-x86_64: Process 5414 attached [pid 5413] chdir("./57" [pid 5412] <... symlink resumed>) = 0 [pid 5411] close(3 [pid 5410] exit_group(0 [pid 5414] set_robust_list(0x555556f426e0, 24 [pid 5413] <... chdir resumed>) = 0 [pid 5412] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5411] <... close resumed>) = 0 [pid 5410] <... exit_group resumed>) = ? [pid 5042] rmdir("./51" [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 52 [pid 5414] <... set_robust_list resumed>) = 0 [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5412] <... symlink resumed>) = 0 [pid 5411] read(200, [pid 5410] +++ exited with 0 +++ [pid 5042] <... rmdir resumed>) = 0 [pid 5414] chdir("./50" [pid 5413] <... prctl resumed>) = 0 [pid 5042] mkdir("./52", 0777 [pid 5414] <... chdir resumed>) = 0 [pid 5413] setpgid(0, 0 [pid 5042] <... mkdir resumed>) = 0 [pid 5414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5413] <... setpgid resumed>) = 0 [pid 5412] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5414] <... prctl resumed>) = 0 [pid 5413] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5412] <... symlink resumed>) = 0 [pid 5411] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 5415 attached [pid 5414] setpgid(0, 0 [pid 5412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5411] symlink("/dev/binderfs", "./binderfs" [pid 5415] set_robust_list(0x555556f426e0, 24 [pid 5414] <... setpgid resumed>) = 0 [pid 5413] <... symlink resumed>) = 0 [pid 5412] <... openat resumed>) = 3 [pid 5411] <... symlink resumed>) = 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 54 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5414] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5413] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5415] <... set_robust_list resumed>) = 0 [pid 5414] <... symlink resumed>) = 0 [pid 5413] <... symlink resumed>) = 0 [pid 5412] write(3, "1000", 4 [pid 5411] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5039] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5415] chdir("./52" [pid 5414] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5413] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5415] <... chdir resumed>) = 0 [pid 5414] <... symlink resumed>) = 0 [pid 5413] <... symlink resumed>) = 0 [pid 5412] <... write resumed>) = 4 [pid 5411] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5415] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5414] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5412] close(3 [pid 5411] close(3 [pid 5039] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5415] <... prctl resumed>) = 0 [pid 5414] <... symlink resumed>) = 0 [pid 5413] <... openat resumed>) = 3 [pid 5412] <... close resumed>) = 0 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... openat resumed>) = 3 [pid 5415] setpgid(0, 0 [pid 5414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5413] write(3, "1000", 4 [pid 5412] read(200, [pid 5411] close(4 [pid 5039] fstat(3, [pid 5415] <... setpgid resumed>) = 0 [pid 5414] <... openat resumed>) = 3 [pid 5413] <... write resumed>) = 4 [pid 5412] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5414] write(3, "1000", 4 [pid 5413] close(3 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5415] <... symlink resumed>) = 0 [pid 5414] <... write resumed>) = 4 [pid 5413] <... close resumed>) = 0 [pid 5412] symlink("/dev/binderfs", "./binderfs" [pid 5411] close(5 [pid 5415] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5414] close(3 [pid 5413] read(200, [pid 5039] getdents64(3, [pid 5414] <... close resumed>) = 0 [pid 5413] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5412] <... symlink resumed>) = 0 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] read(200, [pid 5413] symlink("/dev/binderfs", "./binderfs" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5415] <... symlink resumed>) = 0 [pid 5414] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5413] <... symlink resumed>) = 0 [pid 5412] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5411] close(6 [pid 5415] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5414] symlink("/dev/binderfs", "./binderfs" [pid 5413] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5412] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5415] <... symlink resumed>) = 0 [pid 5414] <... symlink resumed>) = 0 [pid 5413] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(3 [pid 5411] close(7 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5414] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5413] close(3 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(4 [pid 5411] close(8 [pid 5039] lstat("./47/binderfs", [pid 5415] <... openat resumed>) = 3 [pid 5414] close(3 [pid 5413] close(4 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(5 [pid 5411] close(9 [pid 5415] write(3, "1000", 4 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5415] <... write resumed>) = 4 [pid 5414] close(4 [pid 5413] close(5 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(3 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(6 [pid 5411] close(10 [pid 5039] unlink("./47/binderfs" [pid 5415] <... close resumed>) = 0 [pid 5414] close(5 [pid 5413] close(6 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5415] read(200, [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(7 [pid 5411] close(11 [pid 5414] close(6 [pid 5413] close(7 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5039] umount2("./47/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5415] symlink("/dev/binderfs", "./binderfs" [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(12 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5415] <... symlink resumed>) = 0 [pid 5414] close(7 [pid 5413] close(8 [pid 5412] close(8 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./47/cgroup.net", [pid 5415] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(13 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5415] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(8 [pid 5413] close(9 [pid 5412] close(9 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./47/cgroup.net" [pid 5415] close(3 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(14 [pid 5039] <... unlink resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(9 [pid 5413] close(10 [pid 5412] close(10 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./47/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5415] close(4 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(15 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(10 [pid 5413] close(11 [pid 5412] close(11 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./47/cgroup.cpu", [pid 5415] close(5 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(16 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(11 [pid 5413] close(12 [pid 5412] close(12 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./47/cgroup.cpu" [pid 5415] close(6 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(17 [pid 5039] <... unlink resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(12 [pid 5413] close(13 [pid 5412] close(13 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./47/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5415] close(7 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(18 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(14 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./47/cgroup", [pid 5415] close(8 [pid 5414] close(13 [pid 5413] close(14 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(19 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(15 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./47/cgroup" [pid 5415] close(9 [pid 5414] close(14 [pid 5413] close(15 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(20 [pid 5039] <... unlink resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(16 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] getdents64(3, [pid 5415] close(10 [pid 5414] close(15 [pid 5413] close(16 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(21 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(17 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] close(3 [pid 5415] close(11 [pid 5414] close(16 [pid 5413] close(17 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(22 [pid 5039] <... close resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(18 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(12 [pid 5414] close(17 [pid 5413] close(18 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(23 [pid 5039] rmdir("./47" [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(19 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] close(13 [pid 5414] close(18 [pid 5413] close(19 [pid 5039] <... rmdir resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(24 [pid 5039] mkdir("./48", 0777 [pid 5415] close(14 [pid 5414] close(19 [pid 5413] close(20 [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(20 [pid 5411] close(25 [pid 5039] <... mkdir resumed>) = 0 [pid 5415] close(15 [pid 5414] close(20 [pid 5413] close(21 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5415] close(16 [pid 5414] close(21 [pid 5413] close(22 [pid 5412] close(21 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] close(26 [pid 5414] close(22 [pid 5413] close(23 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(23 [pid 5413] close(24 [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] close(24 [pid 5413] close(25./strace-static-x86_64: Process 5416 attached [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] set_robust_list(0x555556f426e0, 24 [pid 5415] close(17 [pid 5414] close(25 [pid 5413] close(26 [pid 5412] close(22 [pid 5411] close(27 [pid 5416] <... set_robust_list resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 50 [pid 5416] chdir("./48" [pid 5415] close(18 [pid 5414] close(26 [pid 5413] close(27 [pid 5412] close(23 [pid 5411] close(28 [pid 5416] <... chdir resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5415] close(19 [pid 5414] close(27 [pid 5413] close(28 [pid 5412] close(24 [pid 5411] close(29 [pid 5416] <... prctl resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] setpgid(0, 0 [pid 5415] close(20 [pid 5414] close(28 [pid 5413] close(29 [pid 5412] close(25write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5411] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5416] <... setpgid resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... write resumed>) = 335 [pid 5416] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5415] close(21write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5414] close(29 [pid 5413] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5412] close(26 [pid 5411] exit_group(0 [pid 5416] <... symlink resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] <... write resumed>) = 335 [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5411] <... exit_group resumed>) = ? [pid 5416] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5415] close(22 [pid 5414] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5413] exit_group(0 [pid 5412] close(27write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5416] <... symlink resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5414] <... write resumed>) = 335 [pid 5413] <... exit_group resumed>) = ? [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5414] exit_group(0 [pid 5412] close(28 [pid 5416] <... symlink resumed>) = 0 [pid 5415] close(23 [pid 5414] <... exit_group resumed>) = ? [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] close(29 [pid 5416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5416] <... openat resumed>) = 3 [pid 5415] close(24 [pid 5412] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5416] write(3, "1000", 4 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5412] <... write resumed>) = 335 [pid 5416] <... write resumed>) = 4 [pid 5414] +++ exited with 0 +++ [pid 5411] +++ exited with 0 +++ [pid 5416] close(3 [pid 5415] close(25 [pid 5412] exit_group(0 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5416] <... close resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5413] +++ exited with 0 +++ [pid 5412] <... exit_group resumed>) = ? [pid 5416] read(200, [pid 5415] close(26 [pid 5416] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5043] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] symlink("/dev/binderfs", "./binderfs" [pid 5415] close(27 [pid 5412] +++ exited with 0 +++ [pid 5045] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5416] <... symlink resumed>) = 0 [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5045] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... openat resumed>) = 3 [pid 5040] <... openat resumed>) = 3 [pid 5416] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5415] close(28 [pid 5045] <... openat resumed>) = 3 [pid 5043] fstat(3, [pid 5040] fstat(3, [pid 5416] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5044] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5416] close(3 [pid 5415] close(29 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] getdents64(3, [pid 5040] getdents64(3, [pid 5045] getdents64(3, [pid 5044] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... openat resumed>) = 3 [pid 5043] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] close(4 [pid 5415] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] fstat(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5415] <... write resumed>) = 335 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] lstat("./52/binderfs", [pid 5040] lstat("./50/binderfs", [pid 5415] exit_group(0 [pid 5045] lstat("./57/binderfs", [pid 5044] getdents64(3, [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5416] close(5 [pid 5415] <... exit_group resumed>) = ? [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] unlink("./52/binderfs" [pid 5040] unlink("./50/binderfs" [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./57/binderfs" [pid 5044] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5416] close(6 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./52/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./50/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./57/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./55/binderfs", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5416] close(7 [pid 5415] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] lstat("./52/cgroup.net", [pid 5040] lstat("./50/cgroup.net", [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./57/cgroup.net", [pid 5044] unlink("./55/binderfs" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5416] close(8 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./52/cgroup.net" [pid 5040] unlink("./50/cgroup.net" [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./57/cgroup.net" [pid 5044] umount2("./55/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5416] close(9 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./52/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5040] umount2("./50/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./57/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./55/cgroup.net", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5416] close(10 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./52/cgroup.cpu", [pid 5042] <... restart_syscall resumed>) = 0 [pid 5040] lstat("./50/cgroup.cpu", [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./57/cgroup.cpu", [pid 5044] unlink("./55/cgroup.net" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5416] close(11 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./52/cgroup.cpu" [pid 5040] unlink("./50/cgroup.cpu" [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./57/cgroup.cpu" [pid 5044] umount2("./55/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5042] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5416] close(12 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./52/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./50/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./57/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./55/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5416] close(13 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./52/cgroup", [pid 5042] <... openat resumed>) = 3 [pid 5040] lstat("./50/cgroup", [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./57/cgroup", [pid 5044] unlink("./55/cgroup.cpu" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] fstat(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5416] close(14 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./52/cgroup" [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] unlink("./50/cgroup" [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./57/cgroup" [pid 5044] umount2("./55/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5042] getdents64(3, [pid 5040] <... unlink resumed>) = 0 [pid 5416] close(15 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] getdents64(3, [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] getdents64(3, [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] lstat("./55/cgroup", [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5416] close(16 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] close(3 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] close(3 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] unlink("./55/cgroup" [pid 5416] close(17 [pid 5043] <... close resumed>) = 0 [pid 5042] lstat("./52/binderfs", [pid 5040] <... close resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] rmdir("./52" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] rmdir("./50" [pid 5416] close(18 [pid 5045] rmdir("./57" [pid 5044] getdents64(3, [pid 5043] <... rmdir resumed>) = 0 [pid 5042] unlink("./52/binderfs" [pid 5040] <... rmdir resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] mkdir("./53", 0777 [pid 5042] <... unlink resumed>) = 0 [pid 5040] mkdir("./51", 0777 [pid 5416] close(19 [pid 5045] mkdir("./58", 0777 [pid 5044] close(3 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] umount2("./52/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... mkdir resumed>) = 0 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5416] close(20 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] rmdir("./55" [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5418 attached ./strace-static-x86_64: Process 5417 attached [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... rmdir resumed>) = 0 [pid 5042] lstat("./52/cgroup.net", [pid 5418] set_robust_list(0x555556f426e0, 24./strace-static-x86_64: Process 5419 attached ) = 0 [pid 5416] close(21 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 60 [pid 5044] mkdir("./56", 0777 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5418] chdir("./53" [pid 5417] set_robust_list(0x555556f426e0, 24 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 55 [pid 5418] <... chdir resumed>) = 0 [pid 5417] <... set_robust_list resumed>) = 0 [pid 5416] close(22 [pid 5044] <... mkdir resumed>) = 0 [pid 5042] unlink("./52/cgroup.net" [pid 5418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5418] <... prctl resumed>) = 0 [pid 5416] close(23 [pid 5042] <... unlink resumed>) = 0 [pid 5418] setpgid(0, 0) = 0 [pid 5418] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./52/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5420 attached [pid 5418] <... symlink resumed>) = 0 [pid 5416] close(24 [pid 5420] set_robust_list(0x555556f426e0, 24 [pid 5418] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5417] chdir("./58" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5420] <... set_robust_list resumed>) = 0 [pid 5418] <... symlink resumed>) = 0 [pid 5420] chdir("./56" [pid 5418] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5420] <... chdir resumed>) = 0 [pid 5418] <... symlink resumed>) = 0 [pid 5417] <... chdir resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 58 [pid 5419] set_robust_list(0x555556f426e0, 24 [pid 5042] lstat("./52/cgroup.cpu", [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 53 [pid 5420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5419] <... set_robust_list resumed>) = 0 [pid 5418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5417] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5416] close(25 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5420] <... prctl resumed>) = 0 [pid 5419] chdir("./51" [pid 5418] <... openat resumed>) = 3 [pid 5417] <... prctl resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./52/cgroup.cpu" [pid 5420] setpgid(0, 0 [pid 5419] <... chdir resumed>) = 0 [pid 5418] write(3, "1000", 4 [pid 5417] setpgid(0, 0 [pid 5416] close(26 [pid 5042] <... unlink resumed>) = 0 [pid 5420] <... setpgid resumed>) = 0 [pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5418] <... write resumed>) = 4 [pid 5417] <... setpgid resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./52/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5420] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5419] <... prctl resumed>) = 0 [pid 5418] close(3 [pid 5417] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5416] close(27 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5419] setpgid(0, 0 [pid 5417] <... symlink resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./52/cgroup", [pid 5420] <... symlink resumed>) = 0 [pid 5419] <... setpgid resumed>) = 0 [pid 5418] <... close resumed>) = 0 [pid 5417] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5416] close(28 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5420] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5419] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5418] read(200, [pid 5417] <... symlink resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./52/cgroup" [pid 5420] <... symlink resumed>) = 0 [pid 5419] <... symlink resumed>) = 0 [pid 5418] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5417] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5416] close(29 [pid 5042] <... unlink resumed>) = 0 [pid 5420] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5419] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5418] symlink("/dev/binderfs", "./binderfs" [pid 5417] <... symlink resumed>) = 0 [pid 5416] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5420] <... symlink resumed>) = 0 [pid 5419] <... symlink resumed>) = 0 [pid 5418] <... symlink resumed>) = 0 [pid 5417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5416] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5419] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5418] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5417] <... openat resumed>) = 3 [pid 5416] <... write resumed>) = 335 [pid 5042] close(3 [pid 5420] <... openat resumed>) = 3 [pid 5419] <... symlink resumed>) = 0 [pid 5418] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] write(3, "1000", 4 [pid 5416] exit_group(0 [pid 5042] <... close resumed>) = 0 [pid 5420] write(3, "1000", 4 [pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5418] close(3 [pid 5417] <... write resumed>) = 4 [pid 5416] <... exit_group resumed>) = ? [pid 5042] rmdir("./52" [pid 5420] <... write resumed>) = 4 [pid 5419] <... openat resumed>) = 3 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(3 [pid 5042] <... rmdir resumed>) = 0 [pid 5420] close(3 [pid 5419] write(3, "1000", 4 [pid 5418] close(4 [pid 5417] <... close resumed>) = 0 [pid 5042] mkdir("./53", 0777 [pid 5420] <... close resumed>) = 0 [pid 5419] <... write resumed>) = 4 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] read(200, [pid 5042] <... mkdir resumed>) = 0 [pid 5420] read(200, [pid 5419] close(3 [pid 5418] close(5 [pid 5417] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5416] +++ exited with 0 +++ [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5421 attached [pid 5420] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5419] <... close resumed>) = 0 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] symlink("/dev/binderfs", "./binderfs" [pid 5421] set_robust_list(0x555556f426e0, 24 [pid 5420] symlink("/dev/binderfs", "./binderfs" [pid 5419] read(200, [pid 5418] close(6 [pid 5417] <... symlink resumed>) = 0 [pid 5421] <... set_robust_list resumed>) = 0 [pid 5420] <... symlink resumed>) = 0 [pid 5419] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 55 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5421] chdir("./53" [pid 5420] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5419] symlink("/dev/binderfs", "./binderfs" [pid 5418] close(7 [pid 5417] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] <... chdir resumed>) = 0 [pid 5420] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... symlink resumed>) = 0 [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(3 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5421] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5420] close(3 [pid 5419] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5418] close(8 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5421] <... prctl resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(4 [pid 5039] <... openat resumed>) = 3 [pid 5421] setpgid(0, 0 [pid 5420] close(4 [pid 5419] close(3 [pid 5418] close(9 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5421] <... setpgid resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(5 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5421] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5420] close(5 [pid 5419] close(4 [pid 5418] close(10 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] getdents64(3, [pid 5421] <... symlink resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(6 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5421] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5420] close(6 [pid 5419] close(5 [pid 5418] close(11 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] <... symlink resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(7 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5421] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5420] close(7 [pid 5419] close(6 [pid 5418] close(12 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./48/binderfs", [pid 5421] <... symlink resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(8 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5420] close(8 [pid 5419] close(7 [pid 5418] close(13 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./48/binderfs" [pid 5421] <... openat resumed>) = 3 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(9 [pid 5039] <... unlink resumed>) = 0 [pid 5421] write(3, "1000", 4 [pid 5420] close(9 [pid 5419] close(8 [pid 5418] close(14 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./48/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] <... write resumed>) = 4 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(10 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5421] close(3 [pid 5420] close(10 [pid 5419] close(9 [pid 5418] close(15 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./48/cgroup.net", [pid 5421] <... close resumed>) = 0 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(11 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5421] read(200, [pid 5419] close(10 [pid 5418] close(16 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./48/cgroup.net" [pid 5421] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5420] close(11 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(12 [pid 5039] <... unlink resumed>) = 0 [pid 5421] symlink("/dev/binderfs", "./binderfs" [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(11 [pid 5418] close(17 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./48/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] <... symlink resumed>) = 0 [pid 5420] close(12 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(13 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5421] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(12 [pid 5418] close(18 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./48/cgroup.cpu", [pid 5421] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(13 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(14 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5421] close(3 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(13 [pid 5418] close(19 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./48/cgroup.cpu" [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(14 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(15 [pid 5039] <... unlink resumed>) = 0 [pid 5421] close(4 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(14 [pid 5418] close(20 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./48/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(15 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(16 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5421] close(5 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(15 [pid 5418] close(21 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./48/cgroup", [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(16 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(17 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5421] close(6 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(16 [pid 5418] close(22 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./48/cgroup" [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(17 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(18 [pid 5039] <... unlink resumed>) = 0 [pid 5421] close(7 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(17 [pid 5418] close(23 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] getdents64(3, [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(18 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(19 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5421] close(8 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(18 [pid 5418] close(24 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] close(3 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(19 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(20 [pid 5039] <... close resumed>) = 0 [pid 5421] close(9 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(19 [pid 5418] close(25 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] rmdir("./48" [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(20 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(21 [pid 5039] <... rmdir resumed>) = 0 [pid 5421] close(10 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(20 [pid 5418] close(26 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] mkdir("./49", 0777 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(21 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(22 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(22 [pid 5039] <... mkdir resumed>) = 0 [pid 5421] close(11 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(21 [pid 5418] close(27 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(23 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(23 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5422 attached [pid 5421] close(12 [pid 5420] close(24 [pid 5419] close(22 [pid 5418] close(28 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] set_robust_list(0x555556f426e0, 24 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(24 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 51 [pid 5422] <... set_robust_list resumed>) = 0 [pid 5421] close(13 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] chdir("./49" [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(25 [pid 5419] close(23 [pid 5418] close(29 [pid 5417] close(25 [pid 5422] <... chdir resumed>) = 0 [pid 5421] close(14 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(26 [pid 5422] <... prctl resumed>) = 0 [pid 5421] close(15 [pid 5420] close(26write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5419] close(24 [pid 5418] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] setpgid(0, 0 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] <... write resumed>) = 335 [pid 5417] close(27 [pid 5422] <... setpgid resumed>) = 0 [pid 5421] close(16 [pid 5420] close(27 [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] close(25 [pid 5422] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] exit_group(0 [pid 5417] close(28 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] <... symlink resumed>) = 0 [pid 5421] close(17 [pid 5420] close(28 [pid 5419] close(26 [pid 5418] <... exit_group resumed>) = ? [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] close(29 [pid 5422] <... symlink resumed>) = 0 [pid 5421] close(18 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5418] +++ exited with 0 +++ [pid 5422] symlink("/syzcgroup/net/syz0", "./cgroup.net"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] close(29 [pid 5419] close(27 [pid 5417] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5422] <... symlink resumed>) = 0 [pid 5421] close(19 [pid 5420] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] <... write resumed>) = 335 [pid 5422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5417] exit_group(0 [pid 5419] close(28 [pid 5422] <... openat resumed>) = 3 [pid 5421] close(20 [pid 5417] <... exit_group resumed>) = ? [pid 5422] write(3, "1000", 4 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] <... write resumed>) = 335 [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5417] +++ exited with 0 +++ [pid 5422] <... write resumed>) = 4 [pid 5421] close(21 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5422] close(3 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5420] exit_group(0 [pid 5419] close(29 [pid 5422] <... close resumed>) = 0 [pid 5421] close(22 [pid 5420] <... exit_group resumed>) = ? [pid 5422] read(200, [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5421] close(23 [pid 5422] symlink("/dev/binderfs", "./binderfs" [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5420] +++ exited with 0 +++ [pid 5419] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5422] <... symlink resumed>) = 0 [pid 5421] close(24 [pid 5422] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] <... write resumed>) = 335 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5422] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(25 [pid 5045] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5422] close(3 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] exit_group(0 [pid 5045] <... openat resumed>) = 3 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... openat resumed>) = 3 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(26 [pid 5419] <... exit_group resumed>) = ? [pid 5045] fstat(3, [pid 5044] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] fstat(3, [pid 5422] close(4 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... openat resumed>) = 3 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(27 [pid 5045] getdents64(3, [pid 5044] fstat(3, [pid 5043] getdents64(3, [pid 5422] close(5 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5419] +++ exited with 0 +++ [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(28 [pid 5045] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] getdents64(3, [pid 5043] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5422] close(6 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] close(29 [pid 5045] lstat("./58/binderfs", [pid 5044] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./53/binderfs", [pid 5040] <... restart_syscall resumed>) = 0 [pid 5422] close(7 [pid 5421] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5421] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] unlink("./58/binderfs" [pid 5044] lstat("./56/binderfs", [pid 5043] unlink("./53/binderfs" [pid 5422] close(8 [pid 5421] <... write resumed>) = 335 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] exit_group(0 [pid 5045] umount2("./58/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./56/binderfs" [pid 5043] umount2("./53/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5422] close(9 [pid 5421] <... exit_group resumed>) = ? [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5421] +++ exited with 0 +++ [pid 5045] lstat("./58/cgroup.net", [pid 5044] umount2("./56/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./53/cgroup.net", [pid 5040] <... openat resumed>) = 3 [pid 5422] close(10 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] fstat(3, [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./58/cgroup.net" [pid 5044] lstat("./56/cgroup.net", [pid 5043] unlink("./53/cgroup.net" [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5422] close(11 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5040] getdents64(3, [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./58/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./56/cgroup.net" [pid 5043] umount2("./53/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... restart_syscall resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5422] close(12 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./58/cgroup.cpu", [pid 5044] umount2("./56/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./53/cgroup.cpu", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5422] close(13 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./58/cgroup.cpu" [pid 5044] lstat("./56/cgroup.cpu", [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./51/binderfs", [pid 5422] close(14 [pid 5045] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./58/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./56/cgroup.cpu" [pid 5043] unlink("./53/cgroup.cpu" [pid 5042] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5422] close(15 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5040] unlink("./51/binderfs" [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./58/cgroup", [pid 5044] umount2("./56/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./53/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] fstat(3, [pid 5040] <... unlink resumed>) = 0 [pid 5422] close(16 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] umount2("./51/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./58/cgroup" [pid 5044] lstat("./56/cgroup", [pid 5043] lstat("./53/cgroup", [pid 5042] getdents64(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5422] close(17 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] lstat("./51/cgroup.net", [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] unlink("./56/cgroup" [pid 5043] unlink("./53/cgroup" [pid 5042] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5422] close(18 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./51/cgroup.net" [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] getdents64(3, [pid 5043] getdents64(3, [pid 5042] lstat("./53/binderfs", [pid 5040] <... unlink resumed>) = 0 [pid 5422] close(19 [pid 5045] <... close resumed>) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] umount2("./51/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./58" [pid 5044] close(3 [pid 5043] close(3 [pid 5042] unlink("./53/binderfs" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5422] close(20 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./51/cgroup.cpu", [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./59", 0777 [pid 5044] rmdir("./56" [pid 5043] rmdir("./53" [pid 5042] umount2("./53/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5422] close(21 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./51/cgroup.cpu" [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] mkdir("./57", 0777 [pid 5043] mkdir("./54", 0777 [pid 5042] lstat("./53/cgroup.net", [pid 5040] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5423 attached [pid 5422] close(22 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./51/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] set_robust_list(0x555556f426e0, 24 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 61 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] unlink("./53/cgroup.net" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5425 attached ./strace-static-x86_64: Process 5424 attached [pid 5423] <... set_robust_list resumed>) = 0 [pid 5422] close(23 [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./51/cgroup", [pid 5425] set_robust_list(0x555556f426e0, 24 [pid 5424] set_robust_list(0x555556f426e0, 24 [pid 5423] chdir("./59" [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 59 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 56 [pid 5042] umount2("./53/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5425] <... set_robust_list resumed>) = 0 [pid 5424] <... set_robust_list resumed>) = 0 [pid 5423] <... chdir resumed>) = 0 [pid 5422] close(24 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./51/cgroup" [pid 5425] chdir("./54" [pid 5424] chdir("./57" [pid 5423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./53/cgroup.cpu", [pid 5040] <... unlink resumed>) = 0 [pid 5425] <... chdir resumed>) = 0 [pid 5424] <... chdir resumed>) = 0 [pid 5423] <... prctl resumed>) = 0 [pid 5422] close(25 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] getdents64(3, [pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5423] setpgid(0, 0 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./53/cgroup.cpu" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5425] <... prctl resumed>) = 0 [pid 5424] <... prctl resumed>) = 0 [pid 5423] <... setpgid resumed>) = 0 [pid 5422] close(26 [pid 5042] <... unlink resumed>) = 0 [pid 5040] close(3 [pid 5425] setpgid(0, 0 [pid 5424] setpgid(0, 0 [pid 5423] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./53/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... close resumed>) = 0 [pid 5425] <... setpgid resumed>) = 0 [pid 5424] <... setpgid resumed>) = 0 [pid 5423] <... symlink resumed>) = 0 [pid 5422] close(27 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] rmdir("./51" [pid 5425] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5424] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5423] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./53/cgroup", [pid 5425] <... symlink resumed>) = 0 [pid 5424] <... symlink resumed>) = 0 [pid 5423] <... symlink resumed>) = 0 [pid 5422] close(28 [pid 5040] <... rmdir resumed>) = 0 [pid 5425] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5424] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] mkdir("./52", 0777 [pid 5425] <... symlink resumed>) = 0 [pid 5424] <... symlink resumed>) = 0 [pid 5423] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5422] close(29 [pid 5042] unlink("./53/cgroup" [pid 5425] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5424] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5423] <... symlink resumed>) = 0 [pid 5422] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... mkdir resumed>) = 0 [pid 5425] <... symlink resumed>) = 0 [pid 5424] <... symlink resumed>) = 0 [pid 5423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5042] <... unlink resumed>) = 0 [pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5423] <... openat resumed>) = 3 [pid 5422] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5425] <... openat resumed>) = 3 [pid 5424] <... openat resumed>) = 3 [pid 5423] write(3, "1000", 4 [pid 5422] <... write resumed>) = 335 [pid 5042] getdents64(3, [pid 5424] write(3, "1000", 4 [pid 5423] <... write resumed>) = 4 [pid 5425] write(3, "1000", 4 [pid 5424] <... write resumed>) = 4 [pid 5423] close(3 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5422] exit_group(0 [pid 5425] <... write resumed>) = 4 [pid 5424] close(3 [pid 5423] <... close resumed>) = 0 [pid 5424] <... close resumed>) = 0 [pid 5423] read(200, [pid 5424] read(200, [pid 5423] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5424] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5423] symlink("/dev/binderfs", "./binderfs" [pid 5424] symlink("/dev/binderfs", "./binderfs" [pid 5423] <... symlink resumed>) = 0 [pid 5424] <... symlink resumed>) = 0 [pid 5423] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5425] close(3 [pid 5424] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5423] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5422] <... exit_group resumed>) = ? [pid 5042] close(3 [pid 5424] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(3 [pid 5424] close(3 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(4 [pid 5424] close(4 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(5 [pid 5424] close(5 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(6 [pid 5424] close(6 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(7 [pid 5424] close(7 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(8 [pid 5042] <... close resumed>) = 0 [pid 5425] <... close resumed>) = 0 [pid 5424] close(8 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./53"./strace-static-x86_64: Process 5426 attached [pid 5425] read(200, [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(9 [pid 5422] +++ exited with 0 +++ [pid 5042] <... rmdir resumed>) = 0 [pid 5426] set_robust_list(0x555556f426e0, 24 [pid 5425] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5424] close(9 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./54", 0777 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 54 [pid 5426] <... set_robust_list resumed>) = 0 [pid 5425] symlink("/dev/binderfs", "./binderfs" [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(10 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5426] chdir("./52" [pid 5425] <... symlink resumed>) = 0 [pid 5424] close(10 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5426] <... chdir resumed>) = 0 [pid 5425] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(11 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5426] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5425] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(11 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... restart_syscall resumed>) = 0 [pid 5426] <... prctl resumed>) = 0 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(12 [pid 5426] setpgid(0, 0 [pid 5425] close(3 [pid 5424] close(12 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] <... setpgid resumed>) = 0 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(13 [pid 5039] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5427 attached [pid 5426] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(13 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] set_robust_list(0x555556f426e0, 24 [pid 5426] <... symlink resumed>) = 0 [pid 5425] close(4 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(14 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 56 [pid 5427] <... set_robust_list resumed>) = 0 [pid 5426] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(14 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5427] chdir("./54" [pid 5426] <... symlink resumed>) = 0 [pid 5425] close(5 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(15 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(6 [pid 5424] close(15 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5427] <... chdir resumed>) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5427] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5426] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(16 [pid 5427] <... prctl resumed>) = 0 [pid 5426] <... symlink resumed>) = 0 [pid 5425] close(7 [pid 5424] close(16 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5427] setpgid(0, 0 [pid 5426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5427] <... setpgid resumed>) = 0 [pid 5425] close(8 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(17 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5427] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5426] <... openat resumed>) = 3 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(17 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5427] <... symlink resumed>) = 0 [pid 5425] close(9 [pid 5426] write(3, "1000", 4 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(18 [pid 5039] getdents64(3, [pid 5427] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5426] <... write resumed>) = 4 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(18 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5427] <... symlink resumed>) = 0 [pid 5426] close(3 [pid 5425] close(10 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(19 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5427] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5426] <... close resumed>) = 0 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(19 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] <... symlink resumed>) = 0 [pid 5426] read(200, [pid 5425] close(11 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(20 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5426] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(20 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./49/binderfs", [pid 5427] <... openat resumed>) = 3 [pid 5426] symlink("/dev/binderfs", "./binderfs" [pid 5425] close(12 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(21 [pid 5427] write(3, "1000", 4 [pid 5426] <... symlink resumed>) = 0 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(21 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5427] <... write resumed>) = 4 [pid 5426] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(22 [pid 5039] unlink("./49/binderfs" [pid 5427] close(3 [pid 5426] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(13 [pid 5424] close(22 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5427] <... close resumed>) = 0 [pid 5426] close(3 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(23 [pid 5039] umount2("./49/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] read(200, [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(14 [pid 5427] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5426] close(4 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(23 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] symlink("/dev/binderfs", "./binderfs" [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(15 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(24 [pid 5039] lstat("./49/cgroup.net", [pid 5427] <... symlink resumed>) = 0 [pid 5426] close(5 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(24 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5427] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(16 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(25 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5427] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(6 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(25 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./49/cgroup.net" [pid 5427] close(3 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(17 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(26 [pid 5039] <... unlink resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(7 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(26 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./49/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] close(4 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(18 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(27 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(8 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(27 [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] close(5 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(19 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] close(28 [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(28 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(9 [pid 5425] close(20 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./49/cgroup.cpu", [pid 5427] close(6 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] close(29 [pid 5423] close(29 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(10 [pid 5425] close(21 [pid 5424] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5427] close(7 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5426] close(11 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] close(22 [pid 5424] <... write resumed>) = 335 [pid 5423] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5039] unlink("./49/cgroup.cpu" [pid 5427] close(8 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] exit_group(0 [pid 5423] <... write resumed>) = 335 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(12 [pid 5425] close(23 [pid 5424] <... exit_group resumed>) = ? [pid 5423] exit_group(0 [pid 5039] <... unlink resumed>) = 0 [pid 5427] close(9 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5424] +++ exited with 0 +++ [pid 5423] <... exit_group resumed>) = ? [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(13 [pid 5425] close(24 [pid 5427] close(10 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(14 [pid 5425] close(25 [pid 5427] close(11 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5423] +++ exited with 0 +++ [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(15 [pid 5425] close(26 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5044] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./49/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] close(12 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(16 [pid 5425] close(27 [pid 5044] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] close(13 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... openat resumed>) = 3 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(17 [pid 5425] close(28 [pid 5044] fstat(3, [pid 5039] lstat("./49/cgroup", [pid 5427] close(14 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(18 [pid 5425] close(29 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] getdents64(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5427] close(15 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] unlink("./49/cgroup" [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(19 [pid 5425] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... openat resumed>) = 3 [pid 5044] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] close(16 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5425] <... write resumed>) = 335 [pid 5045] fstat(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(20 [pid 5425] exit_group(0 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] lstat("./57/binderfs", [pid 5427] close(17 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5425] <... exit_group resumed>) = ? [pid 5045] getdents64(3, [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] getdents64(3, [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(21 [pid 5425] +++ exited with 0 +++ [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] unlink("./57/binderfs" [pid 5427] close(18 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(22 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./57/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] close(19 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./59/binderfs", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] close(3 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(23 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] lstat("./57/cgroup.net", [pid 5427] close(20 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./59/binderfs" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... close resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(24 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./57/cgroup.net" [pid 5427] close(21 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./59/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] rmdir("./49" [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(25 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./57/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] close(22 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./59/cgroup.net", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... rmdir resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(26 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] lstat("./57/cgroup.cpu", [pid 5043] <... openat resumed>) = 3 [pid 5427] close(23 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./59/cgroup.net" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] fstat(3, [pid 5039] mkdir("./50", 0777 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(27 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./57/cgroup.cpu" [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5427] close(24 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./59/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] getdents64(3, [pid 5039] <... mkdir resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(28 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./57/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5427] close(25 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./59/cgroup.cpu", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] close(29 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] lstat("./57/cgroup", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] close(26 [pid 5426] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./59/cgroup.cpu" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] lstat("./54/binderfs", write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory ./strace-static-x86_64: Process 5428 attached [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./57/cgroup" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5428] set_robust_list(0x555556f426e0, 24 [pid 5427] close(27 [pid 5426] <... write resumed>) = 335 [pid 5045] umount2("./59/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./54/binderfs" [pid 5428] <... set_robust_list resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] getdents64(3, [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 52 [pid 5428] chdir("./50" [pid 5427] close(28 [pid 5426] <... exit_group resumed>) = ? [pid 5045] lstat("./59/cgroup", [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] umount2("./54/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5428] <... chdir resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5426] +++ exited with 0 +++ [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] close(3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5427] close(29 [pid 5045] unlink("./59/cgroup" [pid 5044] <... close resumed>) = 0 [pid 5043] lstat("./54/cgroup.net", [pid 5428] <... prctl resumed>) = 0 [pid 5427] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5045] <... unlink resumed>) = 0 [pid 5044] rmdir("./57" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5428] setpgid(0, 0 [pid 5427] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] getdents64(3, [pid 5044] <... rmdir resumed>) = 0 [pid 5043] unlink("./54/cgroup.net" [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5428] <... setpgid resumed>) = 0 [pid 5427] <... write resumed>) = 335 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] mkdir("./58", 0777 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... restart_syscall resumed>) = 0 [pid 5428] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5427] exit_group(0 [pid 5045] close(3 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] umount2("./54/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5428] <... symlink resumed>) = 0 [pid 5427] <... exit_group resumed>) = ? [pid 5045] <... close resumed>) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5429 attached [pid 5428] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5427] +++ exited with 0 +++ [pid 5045] rmdir("./59" [pid 5043] lstat("./54/cgroup.cpu", [pid 5040] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] set_robust_list(0x555556f426e0, 24 [pid 5428] <... symlink resumed>) = 0 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 60 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] <... set_robust_list resumed>) = 0 [pid 5428] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5045] mkdir("./60", 0777 [pid 5043] unlink("./54/cgroup.cpu" [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5429] chdir("./58" [pid 5428] <... symlink resumed>) = 0 [pid 5045] <... mkdir resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5040] <... openat resumed>) = 3 [pid 5429] <... chdir resumed>) = 0 [pid 5428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] umount2("./54/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... restart_syscall resumed>) = 0 [pid 5040] fstat(3, ./strace-static-x86_64: Process 5430 attached [pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5428] <... openat resumed>) = 3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5430] set_robust_list(0x555556f426e0, 24 [pid 5429] <... prctl resumed>) = 0 [pid 5428] write(3, "1000", 4 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 62 [pid 5043] lstat("./54/cgroup", [pid 5040] getdents64(3, [pid 5430] <... set_robust_list resumed>) = 0 [pid 5429] setpgid(0, 0 [pid 5428] <... write resumed>) = 4 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5430] chdir("./60" [pid 5429] <... setpgid resumed>) = 0 [pid 5428] close(3 [pid 5043] unlink("./54/cgroup" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5428] <... close resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5430] <... chdir resumed>) = 0 [pid 5429] <... symlink resumed>) = 0 [pid 5428] read(200, [pid 5043] getdents64(3, [pid 5042] <... openat resumed>) = 3 [pid 5040] lstat("./52/binderfs", [pid 5430] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5429] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5428] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] fstat(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5430] <... prctl resumed>) = 0 [pid 5429] <... symlink resumed>) = 0 [pid 5428] symlink("/dev/binderfs", "./binderfs" [pid 5043] close(3 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] unlink("./52/binderfs" [pid 5430] setpgid(0, 0 [pid 5429] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5428] <... symlink resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] getdents64(3, [pid 5040] <... unlink resumed>) = 0 [pid 5430] <... setpgid resumed>) = 0 [pid 5429] <... symlink resumed>) = 0 [pid 5428] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5043] rmdir("./54" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] umount2("./52/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5430] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5428] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... rmdir resumed>) = 0 [pid 5042] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5430] <... symlink resumed>) = 0 [pid 5429] <... openat resumed>) = 3 [pid 5428] close(3 [pid 5043] mkdir("./55", 0777 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./52/cgroup.net", [pid 5430] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5429] write(3, "1000", 4 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... mkdir resumed>) = 0 [pid 5042] lstat("./54/binderfs", [pid 5430] <... symlink resumed>) = 0 [pid 5429] <... write resumed>) = 4 [pid 5428] close(4 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5430] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5429] close(3 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5430] <... symlink resumed>) = 0 [pid 5430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5430] write(3, "1000", 4) = 4 [pid 5430] close(3) = 0 ./strace-static-x86_64: Process 5431 attached [pid 5430] read(200, [pid 5428] close(5 [pid 5040] unlink("./52/cgroup.net" [pid 5431] set_robust_list(0x555556f426e0, 24 [pid 5430] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5429] <... close resumed>) = 0 [pid 5042] unlink("./54/binderfs" [pid 5431] <... set_robust_list resumed>) = 0 [pid 5430] symlink("/dev/binderfs", "./binderfs" [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5431] chdir("./55" [pid 5430] <... symlink resumed>) = 0 [pid 5431] <... chdir resumed>) = 0 [pid 5430] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5430] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... prctl resumed>) = 0 [pid 5430] close(3 [pid 5428] close(6 [pid 5431] setpgid(0, 0 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] read(200, [pid 5040] umount2("./52/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] <... setpgid resumed>) = 0 [pid 5430] close(4 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 57 [pid 5042] <... unlink resumed>) = 0 [pid 5431] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5431] <... symlink resumed>) = 0 [pid 5430] close(5 [pid 5428] close(7 [pid 5042] umount2("./54/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] symlink("/dev/binderfs", "./binderfs" [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./52/cgroup.cpu", [pid 5431] <... symlink resumed>) = 0 [pid 5430] close(6 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5431] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... symlink resumed>) = 0 [pid 5430] close(7 [pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... openat resumed>) = 3 [pid 5430] close(8 [pid 5429] <... symlink resumed>) = 0 [pid 5428] close(8 [pid 5042] lstat("./54/cgroup.net", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5431] write(3, "1000", 4 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... write resumed>) = 4 [pid 5430] close(9 [pid 5429] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./52/cgroup.cpu" [pid 5431] close(3 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(9 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5431] <... close resumed>) = 0 [pid 5430] close(10 [pid 5431] read(200, [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5429] close(3 [pid 5431] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5430] close(11 [pid 5042] unlink("./54/cgroup.net" [pid 5431] symlink("/dev/binderfs", "./binderfs" [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(10 [pid 5040] umount2("./52/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] <... symlink resumed>) = 0 [pid 5430] close(12 [pid 5042] <... unlink resumed>) = 0 [pid 5431] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(4 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./54/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5431] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(13 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(11 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./52/cgroup", [pid 5431] close(3 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(5 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(14 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(12 [pid 5042] lstat("./54/cgroup.cpu", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5431] close(4 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(15 [pid 5429] close(6 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./52/cgroup" [pid 5431] close(5 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(16 [pid 5431] close(6 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(17 [pid 5429] close(7 [pid 5428] close(13 [pid 5042] unlink("./54/cgroup.cpu" [pid 5040] <... unlink resumed>) = 0 [pid 5431] close(7 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] getdents64(3, [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(18 [pid 5429] close(8 [pid 5428] close(14 [pid 5042] umount2("./54/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5431] close(8 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] close(3 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(19 [pid 5429] close(9 [pid 5428] close(15 [pid 5042] lstat("./54/cgroup", [pid 5040] <... close resumed>) = 0 [pid 5431] close(9 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(20 [pid 5429] close(10 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] rmdir("./52" [pid 5431] close(10 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(16 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(21 [pid 5042] unlink("./54/cgroup" [pid 5040] <... rmdir resumed>) = 0 [pid 5431] close(11 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(11 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(22 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(17 [pid 5042] <... unlink resumed>) = 0 [pid 5040] mkdir("./53", 0777 [pid 5431] close(12 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(12 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(23 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] <... mkdir resumed>) = 0 [pid 5431] close(13 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(18 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(24 [pid 5429] close(13 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5431] close(14 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(19./strace-static-x86_64: Process 5432 attached [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(25 [pid 5429] close(14 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5432] set_robust_list(0x555556f426e0, 24 [pid 5431] close(15 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... set_robust_list resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(26 [pid 5432] chdir("./53" [pid 5431] close(16 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(20 [pid 5042] <... close resumed>) = 0 [pid 5432] <... chdir resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(27 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 55 [pid 5432] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5431] close(17 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(15 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./54" [pid 5432] <... prctl resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(28 [pid 5432] setpgid(0, 0 [pid 5431] close(18 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(21 [pid 5042] <... rmdir resumed>) = 0 [pid 5432] <... setpgid resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] close(29 [pid 5429] close(16 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./55", 0777 [pid 5432] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5431] close(19 [pid 5430] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(22 [pid 5042] <... mkdir resumed>) = 0 [pid 5429] close(17 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory ./strace-static-x86_64: Process 5433 attached [pid 5432] <... symlink resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(23 [pid 5433] set_robust_list(0x555556f426e0, 24 [pid 5432] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5431] close(20 [pid 5430] <... write resumed>) = 335 [pid 5429] close(18 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 57 [pid 5433] <... set_robust_list resumed>) = 0 [pid 5432] <... symlink resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5430] exit_group(0 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(24 [pid 5433] chdir("./55" [pid 5432] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5431] close(21 [pid 5430] <... exit_group resumed>) = ? [pid 5429] close(19 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] <... chdir resumed>) = 0 [pid 5432] <... symlink resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(25 [pid 5433] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5429] close(20 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] <... prctl resumed>) = 0 [pid 5432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5431] close(22 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(26 [pid 5433] setpgid(0, 0 [pid 5432] <... openat resumed>) = 3 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(21 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] <... setpgid resumed>) = 0 [pid 5432] write(3, "1000", 4 [pid 5431] close(23 [pid 5430] +++ exited with 0 +++ [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(27 [pid 5433] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5432] <... write resumed>) = 4 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(22 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] <... symlink resumed>) = 0 [pid 5432] close(3 [pid 5431] close(24 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(28 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5433] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5432] <... close resumed>) = 0 [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(23 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5433] <... symlink resumed>) = 0 [pid 5432] read(200, [pid 5431] close(25 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] close(29 [pid 5045] <... restart_syscall resumed>) = 0 [pid 5433] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5432] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] close(24 [pid 5428] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] <... symlink resumed>) = 0 [pid 5432] symlink("/dev/binderfs", "./binderfs" [pid 5431] close(26 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5432] <... symlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5433] <... openat resumed>) = 3 [pid 5432] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5431] close(27 [pid 5429] close(25 [pid 5428] <... write resumed>) = 335 [pid 5045] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] write(3, "1000", 4 [pid 5432] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] <... write resumed>) = 4 [pid 5432] close(3 [pid 5431] close(28 [pid 5429] close(26 [pid 5428] <... exit_group resumed>) = ? [pid 5045] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5433] close(3 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5428] +++ exited with 0 +++ [pid 5045] <... openat resumed>) = 3 [pid 5433] <... close resumed>) = 0 [pid 5432] close(4 [pid 5431] close(29 [pid 5429] close(27 [pid 5433] read(200, [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5432] close(5 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5431] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5429] close(28 [pid 5433] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... write resumed>) = 335 [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5433] symlink("/dev/binderfs", "./binderfs" [pid 5432] close(6 [pid 5431] exit_group(0 [pid 5429] close(29 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5431] <... exit_group resumed>) = ? [pid 5429] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5433] <... symlink resumed>) = 0 [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5432] close(7 [pid 5431] +++ exited with 0 +++ [pid 5429] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5433] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... write resumed>) = 335 [pid 5039] <... restart_syscall resumed>) = 0 [pid 5433] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] close(8 [pid 5429] exit_group(0 [pid 5045] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5429] <... exit_group resumed>) = ? [pid 5433] close(3 [pid 5432] close(9 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5429] +++ exited with 0 +++ [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./60/binderfs", [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5043] restart_syscall(<... resuming interrupted clone ...> [pid 5433] close(4 [pid 5432] close(10 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... restart_syscall resumed>) = 0 [pid 5039] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] close(5 [pid 5432] close(11) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./60/binderfs" [pid 5432] close(12) = -1 EBADF (Bad file descriptor) [pid 5432] close(13) = -1 EBADF (Bad file descriptor) [pid 5432] close(14) = -1 EBADF (Bad file descriptor) [pid 5432] close(15) = -1 EBADF (Bad file descriptor) [pid 5432] close(16 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] close(17 [pid 5039] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] close(6 [pid 5432] close(18 [pid 5039] <... openat resumed>) = 3 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./60/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5433] close(7 [pid 5432] close(19 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... openat resumed>) = 3 [pid 5043] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./60/cgroup.net", [pid 5044] fstat(3, [pid 5043] <... openat resumed>) = 3 [pid 5039] getdents64(3, [pid 5433] close(8 [pid 5432] close(20 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] fstat(3, [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5433] close(9 [pid 5432] close(21 [pid 5045] unlink("./60/cgroup.net" [pid 5044] getdents64(3, [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] close(22 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5433] close(10 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./60/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] close(23 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5433] close(11 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./50/binderfs", [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] close(24 [pid 5045] lstat("./60/cgroup.cpu", [pid 5044] lstat("./58/binderfs", [pid 5043] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] close(12 [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5432] close(25) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5432] close(26 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./60/cgroup.cpu" [pid 5044] unlink("./58/binderfs" [pid 5043] lstat("./55/binderfs", [pid 5039] unlink("./50/binderfs" [pid 5433] close(13 [pid 5432] close(27) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5432] close(28 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./60/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./58/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./55/binderfs" [pid 5039] <... unlink resumed>) = 0 [pid 5433] close(14 [pid 5432] close(29 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5039] umount2("./50/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./60/cgroup", [pid 5044] lstat("./58/cgroup.net", [pid 5043] umount2("./55/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOWwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] close(15 [pid 5432] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./50/cgroup.net", [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... write resumed>) = 335 [pid 5045] unlink("./60/cgroup" [pid 5044] unlink("./58/cgroup.net" [pid 5043] lstat("./55/cgroup.net", [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5433] close(16 [pid 5432] exit_group(0 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] unlink("./50/cgroup.net" [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5432] <... exit_group resumed>) = ? [pid 5045] getdents64(3, [pid 5044] umount2("./58/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./55/cgroup.net" [pid 5039] <... unlink resumed>) = 0 [pid 5433] close(17 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5039] umount2("./50/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] lstat("./58/cgroup.cpu", [pid 5043] umount2("./55/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] close(18 [pid 5432] +++ exited with 0 +++ [pid 5045] <... close resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./50/cgroup.cpu", [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./60" [pid 5044] unlink("./58/cgroup.cpu" [pid 5043] lstat("./55/cgroup.cpu", [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5433] close(19 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] unlink("./50/cgroup.cpu" [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./61", 0777 [pid 5044] umount2("./58/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./55/cgroup.cpu" [pid 5039] <... unlink resumed>) = 0 [pid 5433] close(20 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] lstat("./58/cgroup", [pid 5043] <... unlink resumed>) = 0 [pid 5039] umount2("./50/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5434 attached [pid 5433] close(21 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] umount2("./55/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5434] set_robust_list(0x555556f426e0, 24 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 63 [pid 5044] unlink("./58/cgroup" [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./50/cgroup", [pid 5434] <... set_robust_list resumed>) = 0 [pid 5433] close(22 [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./55/cgroup", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5434] chdir("./61" [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] unlink("./50/cgroup" [pid 5434] <... chdir resumed>) = 0 [pid 5433] close(23 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] unlink("./55/cgroup" [pid 5040] <... openat resumed>) = 3 [pid 5039] <... unlink resumed>) = 0 [pid 5434] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5043] <... unlink resumed>) = 0 [pid 5040] fstat(3, [pid 5039] getdents64(3, [pid 5434] <... prctl resumed>) = 0 [pid 5433] close(24 [pid 5044] <... close resumed>) = 0 [pid 5043] getdents64(3, [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5434] setpgid(0, 0 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] rmdir("./58" [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] getdents64(3, [pid 5039] close(3 [pid 5434] <... setpgid resumed>) = 0 [pid 5433] close(25 [pid 5044] <... rmdir resumed>) = 0 [pid 5043] close(3 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... close resumed>) = 0 [pid 5434] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] mkdir("./59", 0777 [pid 5043] <... close resumed>) = 0 [pid 5040] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] rmdir("./50" [pid 5434] <... symlink resumed>) = 0 [pid 5433] close(26 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] rmdir("./55" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... rmdir resumed>) = 0 [pid 5434] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] <... rmdir resumed>) = 0 [pid 5040] lstat("./53/binderfs", [pid 5039] mkdir("./51", 0777./strace-static-x86_64: Process 5435 attached [pid 5434] <... symlink resumed>) = 0 [pid 5433] close(27 [pid 5043] mkdir("./56", 0777 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5435] set_robust_list(0x555556f426e0, 24 [pid 5434] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 61 [pid 5043] <... mkdir resumed>) = 0 [pid 5040] unlink("./53/binderfs" [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5436 attached [pid 5435] <... set_robust_list resumed>) = 0 [pid 5434] <... symlink resumed>) = 0 [pid 5433] close(28 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5437 attached [pid 5436] set_robust_list(0x555556f426e0, 24 [pid 5435] chdir("./59" [pid 5434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./53/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] set_robust_list(0x555556f426e0, 24 [pid 5436] <... set_robust_list resumed>) = 0 [pid 5435] <... chdir resumed>) = 0 [pid 5434] <... openat resumed>) = 3 [pid 5433] close(29 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 58 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 53 [pid 5437] <... set_robust_list resumed>) = 0 [pid 5436] chdir("./51" [pid 5435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5434] write(3, "1000", 4 [pid 5433] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./53/cgroup.net", [pid 5437] chdir("./56"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5436] <... chdir resumed>) = 0 [pid 5434] <... write resumed>) = 4 [pid 5433] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5435] <... prctl resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5437] <... chdir resumed>) = 0 [pid 5436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5435] setpgid(0, 0 [pid 5434] close(3 [pid 5433] <... write resumed>) = 335 [pid 5040] unlink("./53/cgroup.net" [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5436] <... prctl resumed>) = 0 [pid 5435] <... setpgid resumed>) = 0 [pid 5434] <... close resumed>) = 0 [pid 5433] exit_group(0 [pid 5040] <... unlink resumed>) = 0 [pid 5437] <... prctl resumed>) = 0 [pid 5436] setpgid(0, 0 [pid 5435] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5434] read(200, [pid 5433] <... exit_group resumed>) = ? [pid 5040] umount2("./53/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] setpgid(0, 0 [pid 5436] <... setpgid resumed>) = 0 [pid 5435] <... symlink resumed>) = 0 [pid 5434] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5433] +++ exited with 0 +++ [pid 5437] <... setpgid resumed>) = 0 [pid 5436] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5435] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5434] symlink("/dev/binderfs", "./binderfs" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5437] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5436] <... symlink resumed>) = 0 [pid 5435] <... symlink resumed>) = 0 [pid 5434] <... symlink resumed>) = 0 [pid 5040] lstat("./53/cgroup.cpu", [pid 5437] <... symlink resumed>) = 0 [pid 5436] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5435] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5434] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5437] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5436] <... symlink resumed>) = 0 [pid 5435] <... symlink resumed>) = 0 [pid 5434] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5040] unlink("./53/cgroup.cpu" [pid 5437] <... symlink resumed>) = 0 [pid 5436] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5434] close(3 [pid 5042] <... restart_syscall resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5437] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5436] <... symlink resumed>) = 0 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... openat resumed>) = 3 [pid 5040] umount2("./53/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] <... symlink resumed>) = 0 [pid 5436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5435] write(3, "1000", 4 [pid 5434] close(4 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5436] <... openat resumed>) = 3 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./53/cgroup", [pid 5437] <... openat resumed>) = 3 [pid 5436] write(3, "1000", 4 [pid 5435] <... write resumed>) = 4 [pid 5434] close(5 [pid 5042] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5437] write(3, "1000", 4 [pid 5436] <... write resumed>) = 4 [pid 5435] close(3 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./53/cgroup" [pid 5437] <... write resumed>) = 4 [pid 5436] close(3 [pid 5435] <... close resumed>) = 0 [pid 5434] close(6 [pid 5042] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... unlink resumed>) = 0 [pid 5437] close(3 [pid 5436] <... close resumed>) = 0 [pid 5435] read(200, [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5040] getdents64(3, [pid 5437] <... close resumed>) = 0 [pid 5436] read(200, [pid 5435] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5434] close(7 [pid 5042] fstat(3, [pid 5437] read(200, [pid 5436] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5435] symlink("/dev/binderfs", "./binderfs" [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5437] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5436] symlink("/dev/binderfs", "./binderfs" [pid 5434] close(8 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5437] symlink("/dev/binderfs", "./binderfs" [pid 5436] <... symlink resumed>) = 0 [pid 5435] <... symlink resumed>) = 0 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] close(3 [pid 5437] <... symlink resumed>) = 0 [pid 5436] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5435] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5434] close(9 [pid 5437] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5436] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... close resumed>) = 0 [pid 5437] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(3 [pid 5434] close(10 [pid 5437] close(3 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(3 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] rmdir("./53" [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(4 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(11 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... rmdir resumed>) = 0 [pid 5437] close(4 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(4 [pid 5042] lstat("./55/binderfs", [pid 5040] mkdir("./54", 0777 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(5 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] close(5 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(12 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(6 [pid 5435] close(5 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./55/binderfs" [pid 5040] <... mkdir resumed>) = 0 [pid 5437] close(6 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(13 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(7 [pid 5435] close(6 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5437] close(7 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(14 [pid 5042] umount2("./55/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(8 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] close(8 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(15./strace-static-x86_64: Process 5438 attached [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(9 [pid 5435] close(7 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5438] set_robust_list(0x555556f426e0, 24 [pid 5437] close(9 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(16 [pid 5438] <... set_robust_list resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(10 [pid 5435] close(8 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./55/cgroup.net", [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 56 [pid 5438] chdir("./54" [pid 5437] close(10 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(17 [pid 5438] <... chdir resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(11 [pid 5435] close(9 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5438] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5437] close(11 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(18 [pid 5042] unlink("./55/cgroup.net" [pid 5438] <... prctl resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(12 [pid 5435] close(10 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5438] setpgid(0, 0 [pid 5437] close(12 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(19 [pid 5438] <... setpgid resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(13 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(11 [pid 5042] umount2("./55/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5438] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5437] close(13 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(20 [pid 5438] <... symlink resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(14 [pid 5435] close(12 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5438] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5437] close(14 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(21 [pid 5042] lstat("./55/cgroup.cpu", [pid 5438] <... symlink resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(15 [pid 5435] close(13 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5438] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5437] close(15 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(22 [pid 5438] <... symlink resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(16 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./55/cgroup.cpu" [pid 5438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5437] close(16 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(14 [pid 5434] close(23 [pid 5438] <... openat resumed>) = 3 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(17 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5438] write(3, "1000", 4 [pid 5437] close(17 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(15 [pid 5434] close(24 [pid 5042] umount2("./55/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5438] <... write resumed>) = 4 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(18 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5438] close(3 [pid 5437] close(18 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(16 [pid 5434] close(25 [pid 5438] <... close resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(19 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./55/cgroup", [pid 5438] read(200, [pid 5437] close(19 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(17 [pid 5434] close(26 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5438] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(20 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./55/cgroup" [pid 5438] symlink("/dev/binderfs", "./binderfs" [pid 5437] close(20 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(18 [pid 5434] close(27 [pid 5438] <... symlink resumed>) = 0 [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(21 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5438] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5437] close(21 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(28 [pid 5042] getdents64(3, [pid 5438] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(22 [pid 5435] close(19 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(3 [pid 5437] close(22 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] close(29 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(23 [pid 5435] close(20 [pid 5434] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5438] close(4 [pid 5437] close(23 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] <... close resumed>) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(24 [pid 5435] close(21 [pid 5434] <... write resumed>) = 335 [pid 5042] rmdir("./55" [pid 5438] close(5 [pid 5437] close(24 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] exit_group(0 [pid 5042] <... rmdir resumed>) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(25 [pid 5435] close(22 [pid 5042] mkdir("./56", 0777 [pid 5438] close(6 [pid 5437] close(25 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5434] <... exit_group resumed>) = ? [pid 5042] <... mkdir resumed>) = 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(26 [pid 5435] close(23 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5439 attached [pid 5438] close(7 [pid 5437] close(26 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] set_robust_list(0x555556f426e0, 24 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(27 [pid 5435] close(24 [pid 5434] +++ exited with 0 +++ [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 58 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5439] <... set_robust_list resumed>) = 0 [pid 5438] close(8 [pid 5437] close(27 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] chdir("./56" [pid 5435] close(25 [pid 5439] <... chdir resumed>) = 0 [pid 5436] close(28 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] close(26 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5439] <... prctl resumed>) = 0 [pid 5437] close(28 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(9 [pid 5439] setpgid(0, 0 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] close(29 [pid 5435] close(27 [pid 5045] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] <... setpgid resumed>) = 0 [pid 5438] close(10 [pid 5437] close(29 [pid 5436] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5439] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5436] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5435] close(28 [pid 5439] <... symlink resumed>) = 0 [pid 5438] close(11 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5439] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5436] <... write resumed>) = 335 [pid 5435] close(29write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5439] <... symlink resumed>) = 0 [pid 5438] close(12 [pid 5437] <... write resumed>) = 335 [pid 5436] exit_group(0 [pid 5435] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5439] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] exit_group(0 [pid 5436] <... exit_group resumed>) = ? [pid 5435] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5439] <... symlink resumed>) = 0 [pid 5438] close(13 [pid 5435] <... write resumed>) = 335 [pid 5045] fstat(3, [pid 5439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5435] exit_group(0 [pid 5439] <... openat resumed>) = 3 [pid 5435] <... exit_group resumed>) = ? [pid 5439] write(3, "1000", 4 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5437] <... exit_group resumed>) = ? [pid 5436] +++ exited with 0 +++ [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5439] <... write resumed>) = 4 [pid 5438] close(14 [pid 5437] +++ exited with 0 +++ [pid 5435] +++ exited with 0 +++ [pid 5045] getdents64(3, [pid 5439] close(3 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5439] <... close resumed>) = 0 [pid 5438] close(15 [pid 5045] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5439] read(200, [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5043] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5438] close(16 [pid 5045] lstat("./61/binderfs", [pid 5044] <... restart_syscall resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] symlink("/dev/binderfs", "./binderfs" [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5439] <... symlink resumed>) = 0 [pid 5438] close(17 [pid 5045] unlink("./61/binderfs" [pid 5043] <... openat resumed>) = 3 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5439] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] fstat(3, [pid 5439] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] close(18 [pid 5045] umount2("./61/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5439] close(3 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] getdents64(3, [pid 5438] close(19 [pid 5045] lstat("./61/cgroup.net", [pid 5044] <... openat resumed>) = 3 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] fstat(3, [pid 5043] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5439] close(4 [pid 5438] close(20 [pid 5045] unlink("./61/cgroup.net" [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5439] close(5 [pid 5438] close(21 [pid 5045] umount2("./61/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] lstat("./56/binderfs", [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5439] close(6 [pid 5438] close(22 [pid 5045] lstat("./61/cgroup.cpu", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./56/binderfs" [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] lstat("./59/binderfs", [pid 5043] <... unlink resumed>) = 0 [pid 5039] getdents64(3, [pid 5439] close(7 [pid 5438] close(23 [pid 5045] unlink("./61/cgroup.cpu" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] umount2("./56/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./59/binderfs" [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] close(8 [pid 5438] close(24 [pid 5045] umount2("./61/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./56/cgroup.net", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./59/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] lstat("./51/binderfs", [pid 5439] close(9 [pid 5438] close(25 [pid 5045] lstat("./61/cgroup", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./56/cgroup.net" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./51/binderfs" [pid 5439] close(10 [pid 5438] close(26 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] lstat("./59/cgroup.net", [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./61/cgroup" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] umount2("./56/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./51/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] close(11 [pid 5438] close(27 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./59/cgroup.net" [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./56/cgroup.cpu", [pid 5039] lstat("./51/cgroup.net", [pid 5439] close(12 [pid 5438] close(28 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] umount2("./59/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./51/cgroup.net" [pid 5439] close(13 [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5043] unlink("./56/cgroup.cpu" [pid 5039] umount2("./51/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOWwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5439] close(14 [pid 5438] close(29 [pid 5045] <... close resumed>) = 0 [pid 5044] lstat("./59/cgroup.cpu", [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./51/cgroup.cpu", [pid 5439] close(15 [pid 5438] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] rmdir("./61" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] umount2("./56/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... write resumed>) = 335 [pid 5045] <... rmdir resumed>) = 0 [pid 5039] unlink("./51/cgroup.cpu" [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5439] close(16 [pid 5438] exit_group(0 [pid 5045] mkdir("./62", 0777 [pid 5044] unlink("./59/cgroup.cpu" [pid 5039] <... unlink resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] <... exit_group resumed>) = ? [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./56/cgroup", [pid 5039] umount2("./51/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] close(17 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./51/cgroup", [pid 5439] close(18 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] umount2("./59/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 ./strace-static-x86_64: Process 5440 attached [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] unlink("./51/cgroup" [pid 5440] set_robust_list(0x555556f426e0, 24 [pid 5439] close(19 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 64 [pid 5044] lstat("./59/cgroup", [pid 5039] <... unlink resumed>) = 0 [pid 5440] <... set_robust_list resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] unlink("./56/cgroup" [pid 5039] getdents64(3, [pid 5440] chdir("./62" [pid 5439] close(20 [pid 5044] unlink("./59/cgroup" [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5440] <... chdir resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5438] +++ exited with 0 +++ [pid 5044] <... unlink resumed>) = 0 [pid 5039] close(3 [pid 5440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5439] close(21 [pid 5044] getdents64(3, [pid 5043] getdents64(3, [pid 5039] <... close resumed>) = 0 [pid 5440] <... prctl resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5039] rmdir("./51" [pid 5440] setpgid(0, 0 [pid 5439] close(22 [pid 5044] close(3 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5039] <... rmdir resumed>) = 0 [pid 5440] <... setpgid resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... close resumed>) = 0 [pid 5040] <... restart_syscall resumed>) = 0 [pid 5039] mkdir("./52", 0777 [pid 5440] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5439] close(23 [pid 5044] rmdir("./59" [pid 5043] close(3 [pid 5039] <... mkdir resumed>) = 0 [pid 5440] <... symlink resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5440] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5439] close(24 [pid 5044] mkdir("./60", 0777 [pid 5043] rmdir("./56" [pid 5040] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5441 attached [pid 5440] <... symlink resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5441] set_robust_list(0x555556f426e0, 24 [pid 5440] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5439] close(25 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] mkdir("./57", 0777 [pid 5040] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 54 ./strace-static-x86_64: Process 5442 attached [pid 5441] <... set_robust_list resumed>) = 0 [pid 5440] <... symlink resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... mkdir resumed>) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5442] set_robust_list(0x555556f426e0, 24 [pid 5440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5439] close(26 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 62 [pid 5040] fstat(3, [pid 5442] <... set_robust_list resumed>) = 0 [pid 5441] chdir("./52" [pid 5440] <... openat resumed>) = 3 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5442] chdir("./60" [pid 5441] <... chdir resumed>) = 0 [pid 5440] write(3, "1000", 4 [pid 5439] close(27 [pid 5040] getdents64(3, [pid 5442] <... chdir resumed>) = 0 [pid 5440] <... write resumed>) = 4 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 ./strace-static-x86_64: Process 5443 attached [pid 5442] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5441] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5440] close(3 [pid 5439] close(28 [pid 5040] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] set_robust_list(0x555556f426e0, 24 [pid 5442] <... prctl resumed>) = 0 [pid 5441] <... prctl resumed>) = 0 [pid 5440] <... close resumed>) = 0 [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 59 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] <... set_robust_list resumed>) = 0 [pid 5442] setpgid(0, 0 [pid 5441] setpgid(0, 0 [pid 5440] read(200, [pid 5439] close(29 [pid 5040] lstat("./54/binderfs", [pid 5443] chdir("./57" [pid 5442] <... setpgid resumed>) = 0 [pid 5441] <... setpgid resumed>) = 0 [pid 5440] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5439] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5443] <... chdir resumed>) = 0 [pid 5442] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5441] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5440] symlink("/dev/binderfs", "./binderfs"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5439] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] unlink("./54/binderfs" [pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5442] <... symlink resumed>) = 0 [pid 5441] <... symlink resumed>) = 0 [pid 5440] <... symlink resumed>) = 0 [pid 5439] <... write resumed>) = 335 [pid 5040] <... unlink resumed>) = 0 [pid 5443] <... prctl resumed>) = 0 [pid 5442] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5441] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5440] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5439] exit_group(0 [pid 5040] umount2("./54/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] setpgid(0, 0 [pid 5442] <... symlink resumed>) = 0 [pid 5441] <... symlink resumed>) = 0 [pid 5440] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] <... exit_group resumed>) = ? [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] <... setpgid resumed>) = 0 [pid 5442] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5441] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5440] close(3 [pid 5443] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5442] <... symlink resumed>) = 0 [pid 5441] <... symlink resumed>) = 0 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5439] +++ exited with 0 +++ [pid 5040] lstat("./54/cgroup.net", [pid 5443] <... symlink resumed>) = 0 [pid 5442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5440] close(4 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5443] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5442] <... openat resumed>) = 3 [pid 5441] <... openat resumed>) = 3 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5040] unlink("./54/cgroup.net" [pid 5443] <... symlink resumed>) = 0 [pid 5442] write(3, "1000", 4 [pid 5441] write(3, "1000", 4 [pid 5440] close(5 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5040] <... unlink resumed>) = 0 [pid 5443] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5442] <... write resumed>) = 4 [pid 5441] <... write resumed>) = 4 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... restart_syscall resumed>) = 0 [pid 5040] umount2("./54/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] <... symlink resumed>) = 0 [pid 5442] close(3 [pid 5441] close(3 [pid 5440] close(6 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5442] <... close resumed>) = 0 [pid 5441] <... close resumed>) = 0 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./54/cgroup.cpu", [pid 5443] <... openat resumed>) = 3 [pid 5442] read(200, [pid 5441] read(200, [pid 5440] close(7 [pid 5042] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5443] write(3, "1000", 4 [pid 5442] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5441] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./54/cgroup.cpu" [pid 5443] <... write resumed>) = 4 [pid 5442] symlink("/dev/binderfs", "./binderfs" [pid 5441] symlink("/dev/binderfs", "./binderfs" [pid 5440] close(8 [pid 5042] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... unlink resumed>) = 0 [pid 5443] close(3 [pid 5442] <... symlink resumed>) = 0 [pid 5441] <... symlink resumed>) = 0 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5443] <... close resumed>) = 0 [pid 5040] umount2("./54/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] read(200, [pid 5442] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5441] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5440] close(9 [pid 5042] fstat(3, [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5443] symlink("/dev/binderfs", "./binderfs" [pid 5442] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(10 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] lstat("./54/cgroup", [pid 5443] <... symlink resumed>) = 0 [pid 5442] close(3 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(3 [pid 5440] close(11 [pid 5042] getdents64(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5443] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(4 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5443] close(3 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(4 [pid 5440] close(12 [pid 5040] unlink("./54/cgroup" [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(5 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] close(4 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(5 [pid 5440] close(13 [pid 5042] lstat("./56/binderfs", [pid 5040] getdents64(3, [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(6 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5443] close(5 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(7 [pid 5441] close(6 [pid 5440] close(14 [pid 5042] unlink("./56/binderfs" [pid 5040] close(3 [pid 5443] close(6 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(7 [pid 5040] <... close resumed>) = 0 [pid 5442] close(8 [pid 5042] <... unlink resumed>) = 0 [pid 5443] close(7 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./56/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] rmdir("./54" [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(9 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(15 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] close(8 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(8 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./56/cgroup.net", [pid 5040] <... rmdir resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(10 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(16 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5443] close(9 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(9 [pid 5042] unlink("./56/cgroup.net" [pid 5040] mkdir("./55", 0777 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(11 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./56/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5442] close(12 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./56/cgroup.cpu", [pid 5442] close(13 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./56/cgroup.cpu" [pid 5442] close(14 [pid 5042] <... unlink resumed>) = 0 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./56/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] close(10 [pid 5442] close(15 [pid 5441] close(10 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... mkdir resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./56/cgroup", [pid 5443] close(11 [pid 5442] close(16 [pid 5441] close(11 [pid 5440] close(17 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5443] close(12 [pid 5442] close(17 [pid 5441] close(12 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./56/cgroup" [pid 5443] close(13 [pid 5442] close(18 [pid 5441] close(13./strace-static-x86_64: Process 5444 attached [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(18 [pid 5042] <... unlink resumed>) = 0 [pid 5444] set_robust_list(0x555556f426e0, 24 [pid 5443] close(14 [pid 5442] close(19 [pid 5441] close(14 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... set_robust_list resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(19 [pid 5042] getdents64(3, [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 57 [pid 5444] chdir("./55" [pid 5443] close(15 [pid 5442] close(20 [pid 5441] close(15 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5444] <... chdir resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(20 [pid 5042] close(3 [pid 5444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5443] close(16 [pid 5442] close(21 [pid 5441] close(16 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5444] <... prctl resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(21 [pid 5444] setpgid(0, 0 [pid 5443] close(17 [pid 5442] close(22 [pid 5441] close(17 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./56" [pid 5444] <... setpgid resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(22 [pid 5042] <... rmdir resumed>) = 0 [pid 5444] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5442] close(23 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] close(18 [pid 5042] mkdir("./57", 0777 [pid 5444] <... symlink resumed>) = 0 [pid 5443] close(18 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(23 [pid 5042] <... mkdir resumed>) = 0 [pid 5444] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(24 [pid 5441] close(19 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5445 attached [pid 5444] <... symlink resumed>) = 0 [pid 5443] close(19 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] close(24 [pid 5445] set_robust_list(0x555556f426e0, 24 [pid 5444] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 59 [pid 5445] <... set_robust_list resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(25 [pid 5441] close(20 [pid 5440] close(25 [pid 5444] <... symlink resumed>) = 0 [pid 5445] chdir("./57" [pid 5444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5443] close(20 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] <... chdir resumed>) = 0 [pid 5444] <... openat resumed>) = 3 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(26 [pid 5441] close(21 [pid 5440] close(26 [pid 5445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5444] write(3, "1000", 4 [pid 5443] close(21 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] <... prctl resumed>) = 0 [pid 5444] <... write resumed>) = 4 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(27 [pid 5441] close(22 [pid 5440] close(27 [pid 5445] setpgid(0, 0 [pid 5444] close(3 [pid 5443] close(22 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] <... setpgid resumed>) = 0 [pid 5444] <... close resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(28 [pid 5441] close(23 [pid 5440] close(28 [pid 5445] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5444] read(200, [pid 5443] close(23 [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] <... symlink resumed>) = 0 [pid 5444] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] close(29 [pid 5441] close(24 [pid 5440] close(29 [pid 5445] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5444] symlink("/dev/binderfs", "./binderfs" [pid 5443] close(24write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5442] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] <... symlink resumed>) = 0 [pid 5444] <... symlink resumed>) = 0 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5441] close(25 [pid 5440] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5444] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5443] close(25 [pid 5442] <... write resumed>) = 335 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5445] <... symlink resumed>) = 0 [pid 5444] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5440] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5443] close(26 [pid 5440] <... write resumed>) = 335 [pid 5445] <... openat resumed>) = 3 [pid 5444] close(3 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] exit_group(0 [pid 5441] close(26 [pid 5440] exit_group(0 [pid 5445] write(3, "1000", 4 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] close(27 [pid 5442] <... exit_group resumed>) = ? [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5440] <... exit_group resumed>) = ? [pid 5445] <... write resumed>) = 4 [pid 5444] close(4 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5442] +++ exited with 0 +++ [pid 5441] close(27 [pid 5440] +++ exited with 0 +++ [pid 5445] close(3 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] close(28 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5445] <... close resumed>) = 0 [pid 5444] close(5 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5445] read(200, [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] close(29 [pid 5441] close(28 [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5445] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5444] close(6 [pid 5443] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... restart_syscall resumed>) = 0 [pid 5044] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] symlink("/dev/binderfs", "./binderfs"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5441] close(29 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... symlink resumed>) = 0 [pid 5444] close(7 [pid 5443] <... write resumed>) = 335 [pid 5441] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5445] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5443] exit_group(0 [pid 5441] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... openat resumed>) = 3 [pid 5445] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(8 [pid 5443] <... exit_group resumed>) = ? [pid 5441] <... write resumed>) = 335 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] fstat(3, [pid 5445] close(3 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5443] +++ exited with 0 +++ [pid 5441] exit_group(0 [pid 5045] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] getdents64(3, [pid 5445] close(4 [pid 5444] close(9 [pid 5441] <... exit_group resumed>) = ? [pid 5045] fstat(3, [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] close(5 [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(10 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] lstat("./60/binderfs", [pid 5445] close(6 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5441] +++ exited with 0 +++ [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(11 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./60/binderfs" [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5445] close(7 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./62/binderfs", [pid 5044] <... unlink resumed>) = 0 [pid 5043] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(12 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5445] close(8 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] umount2("./60/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... restart_syscall resumed>) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(13 [pid 5045] unlink("./62/binderfs" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] close(9 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./60/cgroup.net", [pid 5043] <... openat resumed>) = 3 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(14 [pid 5045] umount2("./62/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] close(10 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./60/cgroup.net" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./62/cgroup.net", [pid 5044] <... unlink resumed>) = 0 [pid 5039] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5445] close(11 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./60/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] fstat(3, [pid 5039] <... openat resumed>) = 3 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(15 [pid 5045] unlink("./62/cgroup.net" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5445] close(12 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./60/cgroup.cpu", [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(16 [pid 5045] umount2("./62/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] getdents64(3, [pid 5445] close(13 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./60/cgroup.cpu" [pid 5043] getdents64(3, [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(17 [pid 5045] lstat("./62/cgroup.cpu", [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] close(14 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./60/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(18 [pid 5045] unlink("./62/cgroup.cpu" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./52/binderfs", [pid 5445] close(15 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./60/cgroup", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(19 [pid 5045] umount2("./62/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] unlink("./52/binderfs" [pid 5445] close(16 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./60/cgroup" [pid 5043] lstat("./57/binderfs", [pid 5039] <... unlink resumed>) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(20 [pid 5045] lstat("./62/cgroup", [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] umount2("./52/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] close(17 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] getdents64(3, [pid 5043] unlink("./57/binderfs" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(21 [pid 5045] unlink("./62/cgroup" [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] lstat("./52/cgroup.net", [pid 5445] close(18 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] close(3 [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... close resumed>) = 0 [pid 5039] unlink("./52/cgroup.net" [pid 5445] close(19 [pid 5444] close(22 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] rmdir("./60" [pid 5043] umount2("./57/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] <... rmdir resumed>) = 0 [pid 5039] umount2("./52/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] close(20 [pid 5444] close(23 [pid 5045] <... close resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./62" [pid 5044] mkdir("./61", 0777 [pid 5043] lstat("./57/cgroup.net", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] close(21 [pid 5444] close(24 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./63", 0777 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] unlink("./57/cgroup.net" [pid 5039] lstat("./52/cgroup.cpu", [pid 5445] close(22 [pid 5444] close(25 [pid 5045] <... mkdir resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./57/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5444] close(26 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./57/cgroup.cpu", [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5444] close(27 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5445] close(23 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./57/cgroup.cpu" [pid 5039] unlink("./52/cgroup.cpu" [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(28 [pid 5043] <... unlink resumed>) = 0 [pid 5445] close(24 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./57/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5447 attached [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] close(29 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5446 attached [pid 5447] set_robust_list(0x555556f426e0, 24 [pid 5445] close(25 [pid 5444] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 65 [pid 5043] lstat("./57/cgroup", [pid 5039] umount2("./52/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5447] <... set_robust_list resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5444] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 63 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5447] chdir("./61" [pid 5446] set_robust_list(0x555556f426e0, 24 [pid 5445] close(26 [pid 5444] <... write resumed>) = 335 [pid 5043] unlink("./57/cgroup" [pid 5039] lstat("./52/cgroup", [pid 5447] <... chdir resumed>) = 0 [pid 5444] exit_group(0 [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5446] <... set_robust_list resumed>) = 0 [pid 5444] <... exit_group resumed>) = ? [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5039] unlink("./52/cgroup" [pid 5447] <... prctl resumed>) = 0 [pid 5446] chdir("./63" [pid 5445] close(27 [pid 5444] +++ exited with 0 +++ [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5447] setpgid(0, 0 [pid 5446] <... chdir resumed>) = 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] close(3 [pid 5039] getdents64(3, [pid 5447] <... setpgid resumed>) = 0 [pid 5445] close(28 [pid 5043] <... close resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5447] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] rmdir("./57" [pid 5039] close(3 [pid 5447] <... symlink resumed>) = 0 [pid 5446] <... prctl resumed>) = 0 [pid 5445] close(29 [pid 5043] <... rmdir resumed>) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5039] <... close resumed>) = 0 [pid 5447] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5043] mkdir("./58", 0777 [pid 5039] rmdir("./52" [pid 5447] <... symlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5446] setpgid(0, 0 [pid 5445] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... mkdir resumed>) = 0 [pid 5040] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... rmdir resumed>) = 0 [pid 5447] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5446] <... setpgid resumed>) = 0 [pid 5445] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] mkdir("./53", 0777./strace-static-x86_64: Process 5448 attached [pid 5447] <... symlink resumed>) = 0 [pid 5446] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5445] <... write resumed>) = 335 [pid 5040] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... mkdir resumed>) = 0 [pid 5448] set_robust_list(0x555556f426e0, 24 [pid 5447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5446] <... symlink resumed>) = 0 [pid 5445] exit_group(0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 60 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5448] <... set_robust_list resumed>) = 0 [pid 5447] <... openat resumed>) = 3 [pid 5446] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5445] <... exit_group resumed>) = ? [pid 5040] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5449 attached [pid 5448] chdir("./58" [pid 5447] write(3, "1000", 4 [pid 5446] <... symlink resumed>) = 0 [pid 5445] +++ exited with 0 +++ [pid 5040] fstat(3, [pid 5449] set_robust_list(0x555556f426e0, 24 [pid 5448] <... chdir resumed>) = 0 [pid 5447] <... write resumed>) = 4 [pid 5446] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 55 [pid 5449] <... set_robust_list resumed>) = 0 [pid 5448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5447] close(3 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5449] chdir("./53" [pid 5448] <... prctl resumed>) = 0 [pid 5447] <... close resumed>) = 0 [pid 5446] <... symlink resumed>) = 0 [pid 5449] <... chdir resumed>) = 0 [pid 5448] setpgid(0, 0 [pid 5447] read(200, [pid 5446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] getdents64(3, [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5448] <... setpgid resumed>) = 0 [pid 5447] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5446] <... openat resumed>) = 3 [pid 5042] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5449] <... prctl resumed>) = 0 [pid 5448] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5447] symlink("/dev/binderfs", "./binderfs" [pid 5446] write(3, "1000", 4 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5449] setpgid(0, 0 [pid 5448] <... symlink resumed>) = 0 [pid 5447] <... symlink resumed>) = 0 [pid 5446] <... write resumed>) = 4 [pid 5042] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5449] <... setpgid resumed>) = 0 [pid 5448] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5447] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5446] close(3 [pid 5042] <... openat resumed>) = 3 [pid 5040] lstat("./55/binderfs", [pid 5449] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5448] <... symlink resumed>) = 0 [pid 5447] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = 0 [pid 5042] fstat(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5449] <... symlink resumed>) = 0 [pid 5448] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5447] close(3 [pid 5446] read(200, [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] unlink("./55/binderfs" [pid 5449] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5448] <... symlink resumed>) = 0 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] getdents64(3, [pid 5040] <... unlink resumed>) = 0 [pid 5449] <... symlink resumed>) = 0 [pid 5448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5447] close(4 [pid 5446] symlink("/dev/binderfs", "./binderfs" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] umount2("./55/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5449] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5448] <... openat resumed>) = 3 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... symlink resumed>) = 0 [pid 5042] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5449] <... symlink resumed>) = 0 [pid 5448] write(3, "1000", 4 [pid 5447] close(5 [pid 5446] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./55/cgroup.net", [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5448] <... write resumed>) = 4 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./57/binderfs", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5449] <... openat resumed>) = 3 [pid 5448] close(3 [pid 5447] close(6 [pid 5446] close(3 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] unlink("./55/cgroup.net" [pid 5449] write(3, "1000", 4 [pid 5448] <... close resumed>) = 0 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./57/binderfs" [pid 5040] <... unlink resumed>) = 0 [pid 5449] <... write resumed>) = 4 [pid 5446] close(4 [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./55/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5449] close(3 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./57/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5449] <... close resumed>) = 0 [pid 5446] close(5 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./55/cgroup.cpu", [pid 5449] read(200, [pid 5448] read(200, [pid 5447] close(7 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./57/cgroup.net", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5449] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5448] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(6 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./55/cgroup.cpu" [pid 5449] symlink("/dev/binderfs", "./binderfs" [pid 5448] symlink("/dev/binderfs", "./binderfs" [pid 5447] close(8 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./57/cgroup.net" [pid 5040] <... unlink resumed>) = 0 [pid 5449] <... symlink resumed>) = 0 [pid 5448] <... symlink resumed>) = 0 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(7 [pid 5449] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5448] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5447] close(9 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./55/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5449] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(8 [pid 5449] close(3 [pid 5448] close(3 [pid 5447] close(10 [pid 5042] umount2("./57/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(4 [pid 5447] close(11 [pid 5449] close(4 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./55/cgroup", [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(9 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(5 [pid 5447] close(12 [pid 5042] lstat("./57/cgroup.cpu", [pid 5449] close(5 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5448] close(6 [pid 5447] close(13 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(10 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./55/cgroup" [pid 5448] close(7 [pid 5447] close(14 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(6 [pid 5448] close(8 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./57/cgroup.cpu" [pid 5040] <... unlink resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(15 [pid 5446] close(11 [pid 5042] <... unlink resumed>) = 0 [pid 5040] getdents64(3, [pid 5449] close(7 [pid 5448] close(9 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./57/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(16 [pid 5446] close(12 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] close(3 [pid 5449] close(8 [pid 5448] close(10 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./57/cgroup", [pid 5040] <... close resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(17 [pid 5446] close(13 [pid 5449] close(9 [pid 5448] close(11 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] rmdir("./55" [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(18 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./57/cgroup" [pid 5040] <... rmdir resumed>) = 0 [pid 5449] close(10 [pid 5448] close(12 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(14 [pid 5042] <... unlink resumed>) = 0 [pid 5040] mkdir("./56", 0777 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(19 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] <... mkdir resumed>) = 0 [pid 5449] close(11 [pid 5448] close(13 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(15 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(20 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(14 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(21./strace-static-x86_64: Process 5450 attached [pid 5449] close(12 [pid 5448] close(15 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(16 [pid 5042] <... close resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(22 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./57" [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 58 [pid 5450] set_robust_list(0x555556f426e0, 24 [pid 5449] close(13 [pid 5448] close(16 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(23 [pid 5446] close(17 [pid 5450] <... set_robust_list resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(17 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... rmdir resumed>) = 0 [pid 5450] chdir("./56" [pid 5449] close(14 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(24 [pid 5450] <... chdir resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(18 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(18 [pid 5042] mkdir("./58", 0777 [pid 5450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5449] close(15 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(25 [pid 5450] <... prctl resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(19 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5450] setpgid(0, 0 [pid 5449] close(16 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(26 [pid 5446] close(19 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5450] <... setpgid resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(20 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5449] close(17 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(27 [pid 5446] close(20./strace-static-x86_64: Process 5451 attached [pid 5450] <... symlink resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(21 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] set_robust_list(0x555556f426e0, 24 [pid 5450] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5449] close(18 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(28 [pid 5451] <... set_robust_list resumed>) = 0 [pid 5450] <... symlink resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(22 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(21 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 60 [pid 5451] chdir("./58" [pid 5450] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5449] close(19 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] close(29 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] <... chdir resumed>) = 0 [pid 5448] close(23 [pid 5447] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5450] <... symlink resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5446] close(22 [pid 5451] <... prctl resumed>) = 0 [pid 5450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5449] close(20 [pid 5448] close(24 [pid 5447] <... write resumed>) = 335 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] setpgid(0, 0 [pid 5450] <... openat resumed>) = 3 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5447] exit_group(0 [pid 5446] close(23 [pid 5451] <... setpgid resumed>) = 0 [pid 5450] write(3, "1000", 4 [pid 5449] close(21 [pid 5448] close(25 [pid 5447] <... exit_group resumed>) = ? [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5450] <... write resumed>) = 4 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(24 [pid 5450] close(3 [pid 5449] close(22 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(26 [pid 5451] <... symlink resumed>) = 0 [pid 5450] <... close resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(25 [pid 5451] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5450] read(200, [pid 5449] close(23 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] <... symlink resumed>) = 0 [pid 5450] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] close(27 [pid 5447] +++ exited with 0 +++ [pid 5446] close(26 [pid 5451] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5450] symlink("/dev/binderfs", "./binderfs" [pid 5449] close(24 [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5451] <... symlink resumed>) = 0 [pid 5448] close(28 [pid 5451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5450] <... symlink resumed>) = 0 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(27 [pid 5451] <... openat resumed>) = 3 [pid 5450] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5449] close(25 [pid 5448] close(29 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] write(3, "1000", 4 [pid 5450] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] close(28 [pid 5451] <... write resumed>) = 4 [pid 5450] close(3 [pid 5448] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5451] close(3 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(26 [pid 5448] <... write resumed>) = 335 [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5451] <... close resumed>) = 0 [pid 5450] close(4 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5448] exit_group(0) = ? [pid 5446] close(29 [pid 5451] read(200, [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(27 [pid 5448] +++ exited with 0 +++ [pid 5446] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5450] close(5 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5451] symlink("/dev/binderfs", "./binderfs" [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5449] close(28 [pid 5446] <... write resumed>) = 335 [pid 5451] <... symlink resumed>) = 0 [pid 5450] close(6 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] exit_group(0 [pid 5044] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5451] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] close(29 [pid 5446] <... exit_group resumed>) = ? [pid 5451] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(7 [pid 5449] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5446] +++ exited with 0 +++ [pid 5451] close(3 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... openat resumed>) = 3 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(8 [pid 5449] <... write resumed>) = 335 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5451] close(4 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] exit_group(0 [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5044] fstat(3, [pid 5043] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(9 [pid 5449] <... exit_group resumed>) = ? [pid 5045] <... restart_syscall resumed>) = 0 [pid 5451] close(5 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5449] +++ exited with 0 +++ [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(10 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5451] close(6 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(11 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] close(7 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(12 [pid 5045] <... openat resumed>) = 3 [pid 5044] getdents64(3, [pid 5043] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5451] close(8 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... openat resumed>) = 3 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(13 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] fstat(3, [pid 5039] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] close(9 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(14 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] lstat("./61/binderfs", [pid 5043] getdents64(3, [pid 5039] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5451] close(10 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... openat resumed>) = 3 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(15 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./61/binderfs" [pid 5043] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] fstat(3, [pid 5451] close(11 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./63/binderfs", [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(16 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] umount2("./61/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./58/binderfs", [pid 5039] getdents64(3, [pid 5451] close(12 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./63/binderfs" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(17 [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./61/cgroup.net", [pid 5043] unlink("./58/binderfs" [pid 5039] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] close(13 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./63/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(18 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./61/cgroup.net" [pid 5043] umount2("./58/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./53/binderfs", [pid 5451] close(14 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./63/cgroup.net", [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(19 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./61/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./58/cgroup.net", [pid 5039] unlink("./53/binderfs" [pid 5451] close(15 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./63/cgroup.net" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(20 [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./61/cgroup.cpu", [pid 5043] unlink("./58/cgroup.net" [pid 5039] umount2("./53/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] close(16 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./63/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(21 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./61/cgroup.cpu" [pid 5043] umount2("./58/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./53/cgroup.net", [pid 5451] close(17 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./63/cgroup.cpu", [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(22 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./61/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./58/cgroup.cpu", [pid 5039] unlink("./53/cgroup.net" [pid 5451] close(18 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./63/cgroup.cpu" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(23 [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./61/cgroup", [pid 5043] unlink("./58/cgroup.cpu" [pid 5039] umount2("./53/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] close(19 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./63/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(24 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] close(20 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./61/cgroup" [pid 5043] umount2("./58/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] close(25 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./53/cgroup.cpu", [pid 5451] close(21 [pid 5045] lstat("./63/cgroup", [pid 5044] <... unlink resumed>) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./58/cgroup", [pid 5451] close(22 [pid 5450] close(26 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] getdents64(3, [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./63/cgroup" [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] unlink("./58/cgroup" [pid 5039] unlink("./53/cgroup.cpu" [pid 5451] close(23 [pid 5450] close(27 [pid 5045] <... unlink resumed>) = 0 [pid 5044] close(3 [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... close resumed>) = 0 [pid 5043] getdents64(3, [pid 5039] umount2("./53/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] close(24 [pid 5450] close(28 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] rmdir("./61" [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] <... rmdir resumed>) = 0 [pid 5043] close(3 [pid 5039] lstat("./53/cgroup", [pid 5451] close(25 [pid 5450] close(29 [pid 5045] <... close resumed>) = 0 [pid 5044] mkdir("./62", 0777 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... close resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5450] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./63" [pid 5451] close(26 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] rmdir("./58" [pid 5045] <... rmdir resumed>) = 0 [pid 5450] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... write resumed>) = 335 [pid 5045] mkdir("./64", 0777 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] <... rmdir resumed>) = 0 [pid 5039] unlink("./53/cgroup"./strace-static-x86_64: Process 5452 attached [pid 5451] close(27 [pid 5450] exit_group(0 [pid 5045] <... mkdir resumed>) = 0 [pid 5043] mkdir("./59", 0777 [pid 5039] <... unlink resumed>) = 0 [pid 5452] set_robust_list(0x555556f426e0, 24 [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5450] <... exit_group resumed>) = ? [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 64 [pid 5043] <... mkdir resumed>) = 0 [pid 5039] getdents64(3, [pid 5452] <... set_robust_list resumed>) = 0 [pid 5451] close(28 [pid 5450] +++ exited with 0 +++ [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5454 attached ./strace-static-x86_64: Process 5453 attached [pid 5452] chdir("./62" [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 66 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5039] close(3 [pid 5454] set_robust_list(0x555556f426e0, 24 [pid 5453] set_robust_list(0x555556f426e0, 24 [pid 5452] <... chdir resumed>) = 0 [pid 5451] close(29 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 61 [pid 5039] <... close resumed>) = 0 [pid 5454] <... set_robust_list resumed>) = 0 [pid 5453] <... set_robust_list resumed>) = 0 [pid 5452] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5451] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] rmdir("./53"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5454] chdir("./59" [pid 5453] chdir("./64" [pid 5452] <... prctl resumed>) = 0 [pid 5451] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5039] <... rmdir resumed>) = 0 [pid 5454] <... chdir resumed>) = 0 [pid 5453] <... chdir resumed>) = 0 [pid 5452] setpgid(0, 0 [pid 5451] <... write resumed>) = 335 [pid 5039] mkdir("./54", 0777 [pid 5454] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5452] <... setpgid resumed>) = 0 [pid 5451] exit_group(0 [pid 5039] <... mkdir resumed>) = 0 [pid 5454] <... prctl resumed>) = 0 [pid 5453] <... prctl resumed>) = 0 [pid 5452] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5451] <... exit_group resumed>) = ? [pid 5040] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5454] setpgid(0, 0 [pid 5453] setpgid(0, 0 [pid 5452] <... symlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5453] <... setpgid resumed>) = 0 [pid 5454] <... setpgid resumed>) = 0 [pid 5453] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5452] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5040] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5455 attached [pid 5454] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5453] <... symlink resumed>) = 0 [pid 5455] set_robust_list(0x555556f426e0, 24 [pid 5454] <... symlink resumed>) = 0 [pid 5453] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5452] <... symlink resumed>) = 0 [pid 5451] +++ exited with 0 +++ [pid 5040] <... openat resumed>) = 3 [pid 5455] <... set_robust_list resumed>) = 0 [pid 5454] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5453] <... symlink resumed>) = 0 [pid 5452] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5040] fstat(3, [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 56 [pid 5455] chdir("./54" [pid 5454] <... symlink resumed>) = 0 [pid 5453] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5452] <... symlink resumed>) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5455] <... chdir resumed>) = 0 [pid 5454] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5453] <... symlink resumed>) = 0 [pid 5452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5040] getdents64(3, [pid 5455] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5454] <... symlink resumed>) = 0 [pid 5453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5452] <... openat resumed>) = 3 [pid 5042] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5455] <... prctl resumed>) = 0 [pid 5454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5452] write(3, "1000", 4 [pid 5453] <... openat resumed>) = 3 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5455] setpgid(0, 0 [pid 5454] <... openat resumed>) = 3 [pid 5453] write(3, "1000", 4 [pid 5452] <... write resumed>) = 4 [pid 5042] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5455] <... setpgid resumed>) = 0 [pid 5454] write(3, "1000", 4 [pid 5452] close(3 [pid 5042] <... openat resumed>) = 3 [pid 5040] lstat("./56/binderfs", [pid 5455] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5454] <... write resumed>) = 4 [pid 5453] <... write resumed>) = 4 [pid 5452] <... close resumed>) = 0 [pid 5042] fstat(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5455] <... symlink resumed>) = 0 [pid 5454] close(3 [pid 5453] close(3 [pid 5452] read(200, [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] unlink("./56/binderfs" [pid 5455] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5454] <... close resumed>) = 0 [pid 5453] <... close resumed>) = 0 [pid 5452] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] getdents64(3, [pid 5040] <... unlink resumed>) = 0 [pid 5455] <... symlink resumed>) = 0 [pid 5454] read(200, [pid 5453] read(200, [pid 5452] symlink("/dev/binderfs", "./binderfs" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] umount2("./56/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5455] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5454] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5453] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5452] <... symlink resumed>) = 0 [pid 5042] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5455] <... symlink resumed>) = 0 [pid 5454] symlink("/dev/binderfs", "./binderfs" [pid 5453] symlink("/dev/binderfs", "./binderfs" [pid 5452] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./56/cgroup.net", [pid 5455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5454] <... symlink resumed>) = 0 [pid 5453] <... symlink resumed>) = 0 [pid 5452] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./58/binderfs", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5455] <... openat resumed>) = 3 [pid 5454] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5453] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5452] close(3 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] unlink("./56/cgroup.net" [pid 5455] write(3, "1000", 4 [pid 5454] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./58/binderfs" [pid 5040] <... unlink resumed>) = 0 [pid 5455] <... write resumed>) = 4 [pid 5454] close(3 [pid 5453] close(3 [pid 5452] close(4 [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./56/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5455] close(3 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./58/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5455] <... close resumed>) = 0 [pid 5454] close(4 [pid 5453] close(4 [pid 5452] close(5 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./56/cgroup.cpu", [pid 5455] read(200, [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./58/cgroup.net", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5455] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5454] close(5 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(6 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./56/cgroup.cpu" [pid 5455] symlink("/dev/binderfs", "./binderfs" [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(5 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./58/cgroup.net" [pid 5040] <... unlink resumed>) = 0 [pid 5455] <... symlink resumed>) = 0 [pid 5454] close(6 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(7 [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./56/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5455] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./58/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5455] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(7 [pid 5453] close(6 [pid 5452] close(8 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./56/cgroup", [pid 5455] close(3 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./58/cgroup.cpu", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(8 [pid 5453] close(7 [pid 5452] close(9 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./56/cgroup" [pid 5455] close(4 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(9 [pid 5453] close(8 [pid 5452] close(10 [pid 5042] unlink("./58/cgroup.cpu" [pid 5040] <... unlink resumed>) = 0 [pid 5455] close(5 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(9 [pid 5042] <... unlink resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(10 [pid 5453] close(10 [pid 5452] close(11 [pid 5040] getdents64(3, [pid 5042] umount2("./58/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5455] close(6 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(11 [pid 5453] close(11 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(12 [pid 5040] close(3 [pid 5455] close(7 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(12 [pid 5042] lstat("./58/cgroup", [pid 5040] <... close resumed>) = 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(12 [pid 5453] close(13 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(8 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] rmdir("./56" [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(13 [pid 5453] close(14 [pid 5452] close(13 [pid 5042] unlink("./58/cgroup" [pid 5040] <... rmdir resumed>) = 0 [pid 5455] close(9 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] mkdir("./57", 0777 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(14 [pid 5453] close(15 [pid 5452] close(14 [pid 5042] getdents64(3, [pid 5040] <... mkdir resumed>) = 0 [pid 5455] close(10 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(15 [pid 5453] close(16 [pid 5452] close(15 [pid 5042] close(3 [pid 5455] close(11 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(16 [pid 5453] close(17 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 ./strace-static-x86_64: Process 5456 attached [pid 5455] close(12 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(16 [pid 5042] rmdir("./58" [pid 5456] set_robust_list(0x555556f426e0, 24 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(17 [pid 5453] close(18 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... rmdir resumed>) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 59 [pid 5456] <... set_robust_list resumed>) = 0 [pid 5455] close(13 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(17 [pid 5042] mkdir("./59", 0777 [pid 5456] chdir("./57" [pid 5453] close(19 [pid 5456] <... chdir resumed>) = 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(18 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5456] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5453] close(20 [pid 5452] close(18 [pid 5455] close(14 [pid 5456] <... prctl resumed>) = 0 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5456] setpgid(0, 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(19 [pid 5453] close(21 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] <... setpgid resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5453] close(22 [pid 5456] <... symlink resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5453] close(23 [pid 5456] <... symlink resumed>) = 0 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5453] close(24 [pid 5456] <... symlink resumed>) = 0 [pid 5455] close(15 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(19 [pid 5456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5453] close(25 [pid 5456] <... openat resumed>) = 3 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(20 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5457 attached [pid 5456] write(3, "1000", 4 [pid 5455] close(16 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(26 [pid 5452] close(20 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 61 [pid 5457] set_robust_list(0x555556f426e0, 24 [pid 5456] <... write resumed>) = 4 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(21 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... set_robust_list resumed>) = 0 [pid 5456] close(3 [pid 5455] close(17 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(27 [pid 5452] close(21 [pid 5457] chdir("./59" [pid 5456] <... close resumed>) = 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(22 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... chdir resumed>) = 0 [pid 5456] read(200, [pid 5455] close(18 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(28 [pid 5452] close(22 [pid 5457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5456] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(23 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... prctl resumed>) = 0 [pid 5456] symlink("/dev/binderfs", "./binderfs" [pid 5455] close(19 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] close(29 [pid 5452] close(23 [pid 5457] setpgid(0, 0 [pid 5456] <... symlink resumed>) = 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(24 [pid 5453] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5457] <... setpgid resumed>) = 0 [pid 5456] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5455] close(20 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5452] close(24 [pid 5457] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5456] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(25 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] <... write resumed>) = 335 [pid 5455] close(21 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(25 [pid 5457] <... symlink resumed>) = 0 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(26 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5457] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5456] close(3 [pid 5455] close(22 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5453] exit_group(0 [pid 5452] close(26 [pid 5457] <... symlink resumed>) = 0 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(27 [pid 5453] <... exit_group resumed>) = ? [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5456] close(4 [pid 5455] close(23 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(27 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(28 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(24 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(28 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] close(29 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... symlink resumed>) = 0 [pid 5456] close(5 [pid 5455] close(25 [pid 5454] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5452] close(29 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5452] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(26 [pid 5454] <... write resumed>) = 335 [pid 5452] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] exit_group(0 [pid 5452] <... write resumed>) = 335 [pid 5455] close(27 [pid 5454] <... exit_group resumed>) = ? [pid 5452] exit_group(0 [pid 5457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5454] +++ exited with 0 +++ [pid 5453] +++ exited with 0 +++ [pid 5452] <... exit_group resumed>) = ? [pid 5457] <... openat resumed>) = 3 [pid 5456] close(6 [pid 5455] close(28 [pid 5452] +++ exited with 0 +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5457] write(3, "1000", 4 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5457] <... write resumed>) = 4 [pid 5456] close(7 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5457] close(3 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] close(29 [pid 5045] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] <... close resumed>) = 0 [pid 5456] close(8 [pid 5455] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5457] read(200, [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5457] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5456] close(9write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5455] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... openat resumed>) = 3 [pid 5044] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] symlink("/dev/binderfs", "./binderfs" [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... write resumed>) = 335 [pid 5045] fstat(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5457] <... symlink resumed>) = 0 [pid 5456] close(10 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5457] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5457] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(11 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5457] close(3 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(12 [pid 5455] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5457] close(4 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5455] <... exit_group resumed>) = ? [pid 5045] lstat("./64/binderfs", [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(13 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5457] close(5 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./64/binderfs" [pid 5044] <... openat resumed>) = 3 [pid 5043] <... openat resumed>) = 3 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(14 [pid 5045] <... unlink resumed>) = 0 [pid 5457] close(6 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./64/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] fstat(3, [pid 5043] fstat(3, [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(15 [pid 5455] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5457] close(7 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./64/cgroup.net", [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(16 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5457] close(8 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./64/cgroup.net" [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(17 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] close(9 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./64/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] getdents64(3, [pid 5043] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(18 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5457] close(10 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./64/cgroup.cpu", [pid 5044] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(19 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] fstat(3, [pid 5457] close(11 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./64/cgroup.cpu" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(20 [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./62/binderfs", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] getdents64(3, [pid 5457] close(12 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./64/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(21 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] lstat("./59/binderfs", [pid 5039] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] close(13 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./64/cgroup", [pid 5044] unlink("./62/binderfs" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(22 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] lstat("./54/binderfs", [pid 5457] close(14 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./64/cgroup" [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./59/binderfs" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(23 [pid 5045] <... unlink resumed>) = 0 [pid 5039] unlink("./54/binderfs" [pid 5457] close(15 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5039] <... unlink resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(24 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] umount2("./54/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] close(16 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] umount2("./62/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(25 [pid 5045] <... close resumed>) = 0 [pid 5039] lstat("./54/cgroup.net", [pid 5457] close(17 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./64" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./59/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(26 [pid 5045] <... rmdir resumed>) = 0 [pid 5039] unlink("./54/cgroup.net" [pid 5457] close(18 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./65", 0777 [pid 5044] lstat("./62/cgroup.net", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(27 [pid 5045] <... mkdir resumed>) = 0 [pid 5039] umount2("./54/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] close(19 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./59/cgroup.net", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5458 attached [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(28 [pid 5044] unlink("./62/cgroup.net" [pid 5039] lstat("./54/cgroup.cpu", [pid 5458] set_robust_list(0x555556f426e0, 24 [pid 5457] close(20 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 67 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5458] <... set_robust_list resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] close(29 [pid 5043] unlink("./59/cgroup.net" [pid 5039] unlink("./54/cgroup.cpu" [pid 5458] chdir("./65" [pid 5457] close(21 [pid 5456] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./62/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5458] <... chdir resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./59/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./54/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5457] close(22 [pid 5456] <... write resumed>) = 335 [pid 5044] lstat("./62/cgroup.cpu", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5458] <... prctl resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] exit_group(0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./54/cgroup", [pid 5458] setpgid(0, 0 [pid 5457] close(23 [pid 5456] <... exit_group resumed>) = ? [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./59/cgroup.cpu", [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5458] <... setpgid resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5456] +++ exited with 0 +++ [pid 5044] unlink("./62/cgroup.cpu" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] unlink("./54/cgroup" [pid 5458] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5457] close(24 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./59/cgroup.cpu" [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5039] <... unlink resumed>) = 0 [pid 5458] <... symlink resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./62/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] getdents64(3, [pid 5458] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5457] close(25 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5458] <... symlink resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] lstat("./62/cgroup", [pid 5043] umount2("./59/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] close(3 [pid 5458] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5457] close(26 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... close resumed>) = 0 [pid 5458] <... symlink resumed>) = 0 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] rmdir("./54" [pid 5458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5457] close(27 [pid 5044] unlink("./62/cgroup" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... rmdir resumed>) = 0 [pid 5458] <... openat resumed>) = 3 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] mkdir("./55", 0777 [pid 5458] write(3, "1000", 4 [pid 5457] close(28 [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./59/cgroup", [pid 5040] <... openat resumed>) = 3 [pid 5039] <... mkdir resumed>) = 0 [pid 5458] <... write resumed>) = 4 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5040] fstat(3, [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5458] close(3 [pid 5457] close(29 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] close(3 [pid 5043] unlink("./59/cgroup"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] <... close resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5044] rmdir("./62" [pid 5043] getdents64(3, [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] mkdir("./63", 0777 [pid 5043] close(3 [pid 5457] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] rmdir("./59"./strace-static-x86_64: Process 5460 attached ./strace-static-x86_64: Process 5459 attached [pid 5458] <... close resumed>) = 0 [pid 5457] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] <... rmdir resumed>) = 0 [pid 5460] set_robust_list(0x555556f426e0, 24 [pid 5459] set_robust_list(0x555556f426e0, 24 [pid 5458] read(200, [pid 5457] <... write resumed>) = 335 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 65 [pid 5043] mkdir("./60", 0777 [pid 5040] getdents64(3, [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 57 [pid 5460] <... set_robust_list resumed>) = 0 [pid 5459] <... set_robust_list resumed>) = 0 [pid 5458] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5457] exit_group(0 [pid 5043] <... mkdir resumed>) = 0 [pid 5460] chdir("./63" [pid 5459] chdir("./55" [pid 5458] symlink("/dev/binderfs", "./binderfs" [pid 5457] <... exit_group resumed>) = ? [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 ./strace-static-x86_64: Process 5461 attached [pid 5460] <... chdir resumed>) = 0 [pid 5459] <... chdir resumed>) = 0 [pid 5458] <... symlink resumed>) = 0 [pid 5040] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5461] set_robust_list(0x555556f426e0, 24 [pid 5460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5458] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5457] +++ exited with 0 +++ [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5461] <... set_robust_list resumed>) = 0 [pid 5460] <... prctl resumed>) = 0 [pid 5459] <... prctl resumed>) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 62 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5458] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] chdir("./60" [pid 5460] setpgid(0, 0 [pid 5459] setpgid(0, 0 [pid 5040] lstat("./57/binderfs", [pid 5461] <... chdir resumed>) = 0 [pid 5460] <... setpgid resumed>) = 0 [pid 5459] <... setpgid resumed>) = 0 [pid 5461] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5460] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5459] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5458] close(3 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5461] <... prctl resumed>) = 0 [pid 5460] <... symlink resumed>) = 0 [pid 5459] <... symlink resumed>) = 0 [pid 5461] setpgid(0, 0 [pid 5460] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5459] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./57/binderfs" [pid 5461] <... setpgid resumed>) = 0 [pid 5460] <... symlink resumed>) = 0 [pid 5459] <... symlink resumed>) = 0 [pid 5458] close(4 [pid 5042] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5461] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5460] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5459] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./57/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5461] <... symlink resumed>) = 0 [pid 5460] <... symlink resumed>) = 0 [pid 5459] <... symlink resumed>) = 0 [pid 5458] close(5 [pid 5042] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5461] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5461] <... symlink resumed>) = 0 [pid 5460] <... openat resumed>) = 3 [pid 5459] <... openat resumed>) = 3 [pid 5042] fstat(3, [pid 5040] lstat("./57/cgroup.net", [pid 5461] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5460] write(3, "1000", 4 [pid 5459] write(3, "1000", 4 [pid 5458] close(6 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5461] <... symlink resumed>) = 0 [pid 5460] <... write resumed>) = 4 [pid 5459] <... write resumed>) = 4 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5460] close(3 [pid 5459] close(3 [pid 5458] close(7 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] unlink("./57/cgroup.net" [pid 5461] <... openat resumed>) = 3 [pid 5460] <... close resumed>) = 0 [pid 5459] <... close resumed>) = 0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5461] write(3, "1000", 4 [pid 5460] read(200, [pid 5459] read(200, [pid 5458] close(8 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5461] <... write resumed>) = 4 [pid 5460] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5459] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./57/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5461] close(3 [pid 5460] symlink("/dev/binderfs", "./binderfs" [pid 5459] symlink("/dev/binderfs", "./binderfs" [pid 5458] close(9 [pid 5042] lstat("./59/binderfs", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5461] <... close resumed>) = 0 [pid 5460] <... symlink resumed>) = 0 [pid 5459] <... symlink resumed>) = 0 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] lstat("./57/cgroup.cpu", [pid 5461] read(200, [pid 5460] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5459] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5458] close(10 [pid 5042] unlink("./59/binderfs" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5461] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5460] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./57/cgroup.cpu" [pid 5461] symlink("/dev/binderfs", "./binderfs" [pid 5460] close(3 [pid 5459] close(3 [pid 5458] close(11 [pid 5040] <... unlink resumed>) = 0 [pid 5461] <... symlink resumed>) = 0 [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./59/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./57/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] close(12 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5459] close(4 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./57/cgroup", [pid 5461] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5460] close(4 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(13 [pid 5042] lstat("./59/cgroup.net", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5461] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(5 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./57/cgroup" [pid 5461] close(3 [pid 5460] close(5 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(14 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(6 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] getdents64(3, [pid 5461] close(4 [pid 5460] close(6 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(15 [pid 5042] unlink("./59/cgroup.net" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(7 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] close(3 [pid 5461] close(5 [pid 5460] close(7 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(16 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... close resumed>) = 0 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(8 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./59/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] rmdir("./57" [pid 5461] close(6 [pid 5460] close(8 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(17 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... rmdir resumed>) = 0 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(9 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./59/cgroup.cpu", [pid 5040] mkdir("./58", 0777 [pid 5461] close(7 [pid 5460] close(9 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(18 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... mkdir resumed>) = 0 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(10 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] unlink("./59/cgroup.cpu"./strace-static-x86_64: Process 5462 attached [pid 5461] close(8 [pid 5460] close(10 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(19 [pid 5042] <... unlink resumed>) = 0 [pid 5462] set_robust_list(0x555556f426e0, 24 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(11 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 60 [pid 5462] <... set_robust_list resumed>) = 0 [pid 5461] close(9 [pid 5460] close(11 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(20 [pid 5042] umount2("./59/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5462] chdir("./58" [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(12 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5462] <... chdir resumed>) = 0 [pid 5461] close(10 [pid 5460] close(12 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(21 [pid 5462] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(13 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./59/cgroup", [pid 5462] <... prctl resumed>) = 0 [pid 5461] close(11 [pid 5460] close(13 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(22 [pid 5462] setpgid(0, 0 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(14 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5462] <... setpgid resumed>) = 0 [pid 5461] close(12 [pid 5460] close(14 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(23 [pid 5462] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(15 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./59/cgroup" [pid 5462] <... symlink resumed>) = 0 [pid 5461] close(13 [pid 5460] close(15 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(24 [pid 5462] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(16 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5462] <... symlink resumed>) = 0 [pid 5461] close(14 [pid 5460] close(16 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(25 [pid 5042] getdents64(3, [pid 5462] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(17 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... symlink resumed>) = 0 [pid 5461] close(15 [pid 5460] close(17 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(26 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(18 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5462] <... openat resumed>) = 3 [pid 5461] close(16 [pid 5460] close(18 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(27 [pid 5462] write(3, "1000", 4 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(19 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5462] <... write resumed>) = 4 [pid 5461] close(17 [pid 5460] close(19 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(28 [pid 5462] close(3 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(20 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./59" [pid 5462] <... close resumed>) = 0 [pid 5461] close(18 [pid 5460] close(20 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] close(29 [pid 5462] read(200, [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(21 [pid 5458] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... rmdir resumed>) = 0 [pid 5462] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5461] close(19 [pid 5460] close(21write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5462] symlink("/dev/binderfs", "./binderfs" [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(22 [pid 5458] <... write resumed>) = 335 [pid 5042] mkdir("./60", 0777 [pid 5462] <... symlink resumed>) = 0 [pid 5461] close(20 [pid 5460] close(22 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] exit_group(0 [pid 5042] <... mkdir resumed>) = 0 [pid 5462] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(23 [pid 5458] <... exit_group resumed>) = ? [pid 5462] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(21 [pid 5460] close(23 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5458] +++ exited with 0 +++ [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5462] close(3 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(24 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- ./strace-static-x86_64: Process 5463 attached [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(22 [pid 5460] close(24 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] set_robust_list(0x555556f426e0, 24 [pid 5462] close(4 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(25 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 62 [pid 5463] <... set_robust_list resumed>) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(23 [pid 5460] close(25 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] chdir("./60" [pid 5462] close(5 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(26 [pid 5463] <... chdir resumed>) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(24 [pid 5460] close(26 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5463] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5462] close(6 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(27 [pid 5045] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] <... prctl resumed>) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(25 [pid 5460] close(27 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5463] setpgid(0, 0 [pid 5462] close(7 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(28 [pid 5045] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5463] <... setpgid resumed>) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(26 [pid 5460] close(28 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5463] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5462] close(8 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] close(29 [pid 5045] fstat(3, [pid 5463] <... symlink resumed>) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(27 [pid 5460] close(29 [pid 5459] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5463] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5462] close(9write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5459] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] getdents64(3, [pid 5463] <... symlink resumed>) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(28 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5460] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5459] <... write resumed>) = 335 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5463] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5462] close(10 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... write resumed>) = 335 [pid 5459] exit_group(0 [pid 5045] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] <... symlink resumed>) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] close(29 [pid 5460] exit_group(0 [pid 5459] <... exit_group resumed>) = ? [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5462] close(11 [pid 5461] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5460] <... exit_group resumed>) = ? [pid 5045] lstat("./65/binderfs", [pid 5459] +++ exited with 0 +++ [pid 5463] <... openat resumed>) = 3 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5462] close(12 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5463] write(3, "1000", 4 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5461] <... write resumed>) = 335 [pid 5045] unlink("./65/binderfs" [pid 5463] <... write resumed>) = 4 [pid 5463] close(3 [pid 5462] close(13 [pid 5461] exit_group(0 [pid 5045] <... unlink resumed>) = 0 [pid 5463] <... close resumed>) = 0 [pid 5461] <... exit_group resumed>) = ? [pid 5463] read(200, [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./65/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5461] +++ exited with 0 +++ [pid 5463] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5463] symlink("/dev/binderfs", "./binderfs" [pid 5462] close(14 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5043] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5463] <... symlink resumed>) = 0 [pid 5043] <... openat resumed>) = 3 [pid 5463] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5462] close(15 [pid 5045] lstat("./65/cgroup.net", [pid 5043] fstat(3, [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5463] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5463] close(3 [pid 5462] close(16 [pid 5460] +++ exited with 0 +++ [pid 5045] unlink("./65/cgroup.net" [pid 5043] getdents64(3, [pid 5039] <... restart_syscall resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5463] close(4 [pid 5462] close(17 [pid 5043] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./65/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5463] close(5 [pid 5462] close(18 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./60/binderfs", [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./65/cgroup.cpu", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] close(6 [pid 5462] close(19 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] unlink("./60/binderfs" [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./65/cgroup.cpu" [pid 5044] <... openat resumed>) = 3 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5463] close(7 [pid 5462] close(20 [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5039] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./65/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] fstat(3, [pid 5043] umount2("./60/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5463] close(8 [pid 5462] close(21 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./65/cgroup", [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5463] close(9 [pid 5462] close(22 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] getdents64(3, [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./65/cgroup" [pid 5044] getdents64(3, [pid 5043] lstat("./60/cgroup.net", [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5463] close(10 [pid 5462] close(23 [pid 5045] <... unlink resumed>) = 0 [pid 5039] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5463] close(11 [pid 5462] close(24 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./60/cgroup.net" [pid 5039] lstat("./55/binderfs", [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5463] close(12 [pid 5462] close(25 [pid 5045] <... close resumed>) = 0 [pid 5044] lstat("./63/binderfs", [pid 5043] umount2("./60/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./55/binderfs" [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./65" [pid 5039] <... unlink resumed>) = 0 [pid 5463] close(13 [pid 5462] close(26 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./55/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./66", 0777 [pid 5044] unlink("./63/binderfs" [pid 5043] lstat("./60/cgroup.cpu", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5463] close(14 [pid 5462] close(27 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5039] lstat("./55/cgroup.net", [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5463] close(15 [pid 5462] close(28 [pid 5044] umount2("./63/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./60/cgroup.cpu" [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5039] unlink("./55/cgroup.net"./strace-static-x86_64: Process 5464 attached [pid 5463] close(16 [pid 5462] close(29 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 68 [pid 5044] lstat("./63/cgroup.net", [pid 5043] umount2("./60/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5464] set_robust_list(0x555556f426e0, 24 [pid 5463] close(17 [pid 5462] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] unlink("./63/cgroup.net" [pid 5043] lstat("./60/cgroup", [pid 5039] umount2("./55/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5464] <... set_robust_list resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] <... write resumed>) = 335 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5462] exit_group(0 [pid 5044] umount2("./63/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./60/cgroup" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5464] chdir("./66" [pid 5463] close(18 [pid 5462] <... exit_group resumed>) = ? [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5044] lstat("./63/cgroup.cpu", [pid 5043] getdents64(3, [pid 5039] lstat("./55/cgroup.cpu", [pid 5464] <... chdir resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] unlink("./63/cgroup.cpu" [pid 5043] close(3 [pid 5463] close(19 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./63/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] rmdir("./60" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... rmdir resumed>) = 0 [pid 5044] lstat("./63/cgroup", [pid 5043] mkdir("./61", 0777 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5044] unlink("./63/cgroup" [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5465 attached [pid 5464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5462] +++ exited with 0 +++ [pid 5044] <... unlink resumed>) = 0 [pid 5039] unlink("./55/cgroup.cpu" [pid 5464] <... prctl resumed>) = 0 [pid 5044] getdents64(3, [pid 5465] set_robust_list(0x555556f426e0, 24 [pid 5464] setpgid(0, 0 [pid 5463] close(20 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 63 [pid 5039] <... unlink resumed>) = 0 [pid 5465] <... set_robust_list resumed>) = 0 [pid 5464] <... setpgid resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5465] chdir("./61" [pid 5463] close(21 [pid 5044] <... close resumed>) = 0 [pid 5465] <... chdir resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] rmdir("./63" [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5463] close(22 [pid 5044] <... rmdir resumed>) = 0 [pid 5465] <... prctl resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] mkdir("./64", 0777 [pid 5039] umount2("./55/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5465] setpgid(0, 0 [pid 5464] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5463] close(23 [pid 5044] <... mkdir resumed>) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5465] <... setpgid resumed>) = 0 [pid 5464] <... symlink resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5466 attached [pid 5465] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5464] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5463] close(24 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5466] set_robust_list(0x555556f426e0, 24 [pid 5465] <... symlink resumed>) = 0 [pid 5464] <... symlink resumed>) = 0 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./55/cgroup", [pid 5466] <... set_robust_list resumed>) = 0 [pid 5465] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5463] close(25 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 66 [pid 5466] chdir("./64" [pid 5465] <... symlink resumed>) = 0 [pid 5464] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5466] <... chdir resumed>) = 0 [pid 5465] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5464] <... symlink resumed>) = 0 [pid 5463] close(26 [pid 5040] <... openat resumed>) = 3 [pid 5466] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5465] <... symlink resumed>) = 0 [pid 5464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./55/cgroup" [pid 5466] <... prctl resumed>) = 0 [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5463] close(27 [pid 5466] setpgid(0, 0 [pid 5465] <... openat resumed>) = 3 [pid 5464] <... openat resumed>) = 3 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] fstat(3, [pid 5039] <... unlink resumed>) = 0 [pid 5466] <... setpgid resumed>) = 0 [pid 5465] write(3, "1000", 4 [pid 5463] close(28 [pid 5464] write(3, "1000", 4 [pid 5466] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5465] <... write resumed>) = 4 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] getdents64(3, [pid 5466] <... symlink resumed>) = 0 [pid 5465] close(3 [pid 5464] <... write resumed>) = 4 [pid 5463] close(29 [pid 5040] getdents64(3, [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5466] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5465] <... close resumed>) = 0 [pid 5464] close(3 [pid 5463] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... symlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5465] read(200, [pid 5464] <... close resumed>) = 0 [pid 5463] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] close(3 [pid 5466] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5465] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5464] read(200, [pid 5463] <... write resumed>) = 335 [pid 5466] <... symlink resumed>) = 0 [pid 5465] symlink("/dev/binderfs", "./binderfs" [pid 5463] exit_group(0 [pid 5466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5465] <... symlink resumed>) = 0 [pid 5464] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5463] <... exit_group resumed>) = ? [pid 5040] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... close resumed>) = 0 [pid 5466] <... openat resumed>) = 3 [pid 5464] symlink("/dev/binderfs", "./binderfs" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] rmdir("./55" [pid 5466] write(3, "1000", 4 [pid 5465] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5464] <... symlink resumed>) = 0 [pid 5463] +++ exited with 0 +++ [pid 5040] lstat("./58/binderfs", [pid 5039] <... rmdir resumed>) = 0 [pid 5464] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] mkdir("./56", 0777 [pid 5466] <... write resumed>) = 4 [pid 5465] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5040] unlink("./58/binderfs" [pid 5039] <... mkdir resumed>) = 0 [pid 5466] close(3 [pid 5465] close(3 [pid 5464] close(3 [pid 5040] <... unlink resumed>) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5467 attached [pid 5466] <... close resumed>) = 0 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./58/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5467] set_robust_list(0x555556f426e0, 24 [pid 5466] read(200, [pid 5465] close(4 [pid 5464] close(4 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5467] <... set_robust_list resumed>) = 0 [pid 5466] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./58/cgroup.net", [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 58 [pid 5467] chdir("./56" [pid 5466] symlink("/dev/binderfs", "./binderfs" [pid 5465] close(5 [pid 5464] close(5 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5467] <... chdir resumed>) = 0 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./58/cgroup.net" [pid 5467] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5466] <... symlink resumed>) = 0 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(6 [pid 5040] <... unlink resumed>) = 0 [pid 5467] <... prctl resumed>) = 0 [pid 5466] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./58/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5467] setpgid(0, 0 [pid 5464] close(7 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5467] <... setpgid resumed>) = 0 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./58/cgroup.cpu", [pid 5467] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5466] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(6 [pid 5464] close(8 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5467] <... symlink resumed>) = 0 [pid 5466] close(3 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./58/cgroup.cpu" [pid 5467] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(7 [pid 5464] close(9 [pid 5042] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5467] <... symlink resumed>) = 0 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./58/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5467] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5466] close(4 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(10 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5467] <... symlink resumed>) = 0 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(8 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./58/cgroup", [pid 5467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5466] close(5 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(11 [pid 5042] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5467] <... openat resumed>) = 3 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(9 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5040] unlink("./58/cgroup" [pid 5467] write(3, "1000", 4 [pid 5466] close(6 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(12 [pid 5042] fstat(3, [pid 5040] <... unlink resumed>) = 0 [pid 5467] <... write resumed>) = 4 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(10 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] getdents64(3, [pid 5467] close(3 [pid 5464] close(13 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5467] <... close resumed>) = 0 [pid 5466] close(7 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5467] read(200, [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(11 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] close(3 [pid 5467] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5466] close(8 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(14 [pid 5042] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... close resumed>) = 0 [pid 5467] symlink("/dev/binderfs", "./binderfs" [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(12 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5467] <... symlink resumed>) = 0 [pid 5466] close(9 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(15 [pid 5042] lstat("./60/binderfs", [pid 5040] rmdir("./58" [pid 5467] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(13 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5466] close(10 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./60/binderfs" [pid 5040] <... rmdir resumed>) = 0 [pid 5467] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(14 [pid 5464] close(16 [pid 5042] <... unlink resumed>) = 0 [pid 5467] close(3 [pid 5466] close(11 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./60/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] mkdir("./59", 0777 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(15 [pid 5464] close(17 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5467] close(4 [pid 5466] close(12 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./60/cgroup.net", [pid 5040] <... mkdir resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(16 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5467] close(5 [pid 5466] close(13 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(18 [pid 5042] unlink("./60/cgroup.net" [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(17 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5466] close(14 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./60/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(18 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5466] close(15 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./60/cgroup.cpu", ./strace-static-x86_64: Process 5468 attached [pid 5467] close(6 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(19 [pid 5464] close(19 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5468] set_robust_list(0x555556f426e0, 24 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(16 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./60/cgroup.cpu" [pid 5468] <... set_robust_list resumed>) = 0 [pid 5467] close(7 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(20 [pid 5464] close(20 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 61 [pid 5468] chdir("./59" [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(17 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./60/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5468] <... chdir resumed>) = 0 [pid 5467] close(8 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(21 [pid 5464] close(21 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5468] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(18 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./60/cgroup", [pid 5468] <... prctl resumed>) = 0 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(22 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5468] setpgid(0, 0 [pid 5467] close(9 [pid 5466] close(19 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(22 [pid 5042] unlink("./60/cgroup" [pid 5468] <... setpgid resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(23 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5468] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5467] close(10 [pid 5466] close(20 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(23 [pid 5042] getdents64(3, [pid 5468] <... symlink resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(24 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5468] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5467] close(11 [pid 5466] close(21 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(24 [pid 5042] close(3 [pid 5468] <... symlink resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(25 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5468] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5467] close(12 [pid 5466] close(22 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] close(25 [pid 5042] rmdir("./60" [pid 5468] <... symlink resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5467] close(13 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(26 [pid 5464] close(26 [pid 5042] <... rmdir resumed>) = 0 [pid 5468] <... openat resumed>) = 3 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(23 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(14 [pid 5464] close(27 [pid 5468] write(3, "1000", 4 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(27 [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./61", 0777 [pid 5467] close(15 [pid 5464] close(28 [pid 5468] <... write resumed>) = 4 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(24 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5468] close(3 [pid 5467] close(16 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(28 [pid 5464] close(29 [pid 5468] <... close resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5466] close(25 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5468] read(200, [pid 5467] close(17 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] close(29 [pid 5464] <... write resumed>) = 335 [pid 5467] close(18 [pid 5464] exit_group(0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5464] <... exit_group resumed>) = ? write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory ./strace-static-x86_64: Process 5469 attached [pid 5468] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5467] close(19 [pid 5466] close(26 [pid 5465] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] set_robust_list(0x555556f426e0, 24 [pid 5468] symlink("/dev/binderfs", "./binderfs" [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5464] +++ exited with 0 +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 63 [pid 5469] <... set_robust_list resumed>) = 0 [pid 5468] <... symlink resumed>) = 0 [pid 5467] close(20 [pid 5466] close(27 [pid 5465] <... write resumed>) = 335 [pid 5469] chdir("./61" [pid 5468] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] <... chdir resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5465] exit_group(0 [pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5467] close(21 [pid 5469] setpgid(0, 0) = 0 [pid 5468] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(28 [pid 5465] <... exit_group resumed>) = ? [pid 5469] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5467] close(22 [pid 5469] <... symlink resumed>) = 0 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5467] close(23 [pid 5469] <... symlink resumed>) = 0 [pid 5468] close(3 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] close(29 [pid 5469] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(24 [pid 5045] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] <... symlink resumed>) = 0 [pid 5468] close(4 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5465] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] close(25 [pid 5466] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5469] <... openat resumed>) = 3 [pid 5468] close(5 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] <... write resumed>) = 335 [pid 5469] write(3, "1000", 4 [pid 5467] close(26 [pid 5045] <... openat resumed>) = 3 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5466] exit_group(0 [pid 5469] <... write resumed>) = 4 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] close(3 [pid 5468] close(6write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5467] close(27 [pid 5466] <... exit_group resumed>) = ? [pid 5045] fstat(3, [pid 5043] restart_syscall(<... resuming interrupted clone ...> [pid 5469] <... close resumed>) = 0 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] read(200, [pid 5467] close(28 [pid 5469] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5469] symlink("/dev/binderfs", "./binderfs" [pid 5467] close(29 [pid 5469] <... symlink resumed>) = 0 [pid 5468] close(7 [pid 5467] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... restart_syscall resumed>) = 0 [pid 5469] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5467] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5469] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... write resumed>) = 335 [pid 5045] getdents64(3, [pid 5469] close(3 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] exit_group(0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5467] <... exit_group resumed>) = ? [pid 5469] close(4 [pid 5468] close(8 [pid 5467] +++ exited with 0 +++ [pid 5466] +++ exited with 0 +++ [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] close(5 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5468] close(9 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./66/binderfs", [pid 5043] <... openat resumed>) = 3 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(10 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] fstat(3, [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5469] close(6 [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./66/binderfs" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... restart_syscall resumed>) = 0 [pid 5469] close(7 [pid 5468] close(11 [pid 5045] <... unlink resumed>) = 0 [pid 5044] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./66/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... openat resumed>) = 3 [pid 5043] getdents64(3, [pid 5469] close(8 [pid 5468] close(12 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] fstat(3, [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./66/cgroup.net", [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] close(9 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(13 [pid 5039] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5469] close(10 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] getdents64(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... openat resumed>) = 3 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5469] close(11 [pid 5468] close(14 [pid 5045] unlink("./66/cgroup.net" [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] lstat("./61/binderfs", [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] getdents64(3, [pid 5469] close(12 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] close(13 [pid 5468] close(15 [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./56/binderfs", [pid 5469] close(14 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./66/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./61/binderfs" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./56/binderfs" [pid 5469] close(15 [pid 5468] close(16 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./64/binderfs", [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./56/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] close(16 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./66/cgroup.cpu", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(17 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] umount2("./61/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./56/cgroup.net", [pid 5469] close(17 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] unlink("./64/binderfs" [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(18 [pid 5045] unlink("./66/cgroup.cpu" [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./61/cgroup.net", [pid 5469] close(18 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./64/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] unlink("./56/cgroup.net" [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(19 [pid 5045] umount2("./66/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./61/cgroup.net" [pid 5469] close(19 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./64/cgroup.net", [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(20 [pid 5045] lstat("./66/cgroup", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] umount2("./61/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./56/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] close(20 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] unlink("./64/cgroup.net" [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(21 [pid 5045] unlink("./66/cgroup" [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./61/cgroup.cpu", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5469] close(21 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./64/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] lstat("./56/cgroup.cpu", [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(22 [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./61/cgroup.cpu" [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] lstat("./64/cgroup.cpu", [pid 5043] <... unlink resumed>) = 0 [pid 5468] close(23 [pid 5045] close(3 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] umount2("./61/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5044] unlink("./64/cgroup.cpu" [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5468] close(24 [pid 5469] close(22 [pid 5045] rmdir("./66" [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./61/cgroup", [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5044] umount2("./64/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(25 [pid 5045] mkdir("./67", 0777 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./61/cgroup" [pid 5039] unlink("./56/cgroup.cpu" [pid 5469] close(23 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 [pid 5044] lstat("./64/cgroup", [pid 5043] <... unlink resumed>) = 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(26 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] getdents64(3, [pid 5039] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5470 attached [pid 5469] close(24 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./64/cgroup" [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] umount2("./56/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5470] set_robust_list(0x555556f426e0, 24 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(27 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 69 [pid 5044] <... unlink resumed>) = 0 [pid 5043] close(3 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5470] <... set_robust_list resumed>) = 0 [pid 5469] close(25 [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5043] <... close resumed>) = 0 [pid 5039] lstat("./56/cgroup", [pid 5470] chdir("./67" [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] close(28 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] rmdir("./61" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5470] <... chdir resumed>) = 0 [pid 5469] close(26 [pid 5039] unlink("./56/cgroup" [pid 5470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5043] <... rmdir resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5470] <... prctl resumed>) = 0 [pid 5469] close(27 [pid 5468] close(29 [pid 5044] <... close resumed>) = 0 [pid 5039] getdents64(3, [pid 5043] mkdir("./62", 0777 [pid 5470] setpgid(0, 0 [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] rmdir("./64" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5470] <... setpgid resumed>) = 0 [pid 5469] close(28 [pid 5043] <... mkdir resumed>) = 0 [pid 5039] close(3 [pid 5470] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5468] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... rmdir resumed>) = 0 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... close resumed>) = 0 [pid 5470] <... symlink resumed>) = 0 [pid 5469] close(29 [pid 5468] <... write resumed>) = 335 [pid 5044] mkdir("./65", 0777 [pid 5039] rmdir("./56" [pid 5470] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5469] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... rmdir resumed>) = 0 [pid 5470] <... symlink resumed>) = 0 [pid 5469] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5039] mkdir("./57", 0777./strace-static-x86_64: Process 5471 attached [pid 5470] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5469] <... write resumed>) = 335 [pid 5039] <... mkdir resumed>) = 0 [pid 5471] set_robust_list(0x555556f426e0, 24 [pid 5470] <... symlink resumed>) = 0 [pid 5469] exit_group(0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5472 attached [pid 5471] <... set_robust_list resumed>) = 0 [pid 5470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5469] <... exit_group resumed>) = ? [pid 5468] exit_group(0 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 64 [pid 5472] set_robust_list(0x555556f426e0, 24 [pid 5471] chdir("./62" [pid 5470] <... openat resumed>) = 3 [pid 5469] +++ exited with 0 +++ [pid 5468] <... exit_group resumed>) = ? [pid 5472] <... set_robust_list resumed>) = 0 [pid 5471] <... chdir resumed>) = 0 [pid 5470] write(3, "1000", 4 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 59 [pid 5472] chdir("./57" [pid 5471] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5470] <... write resumed>) = 4 [pid 5472] <... chdir resumed>) = 0 [pid 5471] <... prctl resumed>) = 0 [pid 5470] close(3 [pid 5472] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5471] setpgid(0, 0 [pid 5470] <... close resumed>) = 0 [pid 5472] <... prctl resumed>) = 0 [pid 5471] <... setpgid resumed>) = 0 [pid 5470] read(200, ./strace-static-x86_64: Process 5473 attached [pid 5472] setpgid(0, 0 [pid 5471] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5470] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5468] +++ exited with 0 +++ [pid 5472] <... setpgid resumed>) = 0 [pid 5471] <... symlink resumed>) = 0 [pid 5470] symlink("/dev/binderfs", "./binderfs" [pid 5042] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5472] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5471] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5470] <... symlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5473] set_robust_list(0x555556f426e0, 24 [pid 5472] <... symlink resumed>) = 0 [pid 5471] <... symlink resumed>) = 0 [pid 5470] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 67 [pid 5042] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5473] <... set_robust_list resumed>) = 0 [pid 5472] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5471] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5470] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5473] chdir("./65" [pid 5472] <... symlink resumed>) = 0 [pid 5471] <... symlink resumed>) = 0 [pid 5470] close(3 [pid 5042] fstat(3, [pid 5473] <... chdir resumed>) = 0 [pid 5472] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5472] <... symlink resumed>) = 0 [pid 5471] <... openat resumed>) = 3 [pid 5470] close(4 [pid 5042] getdents64(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5473] <... prctl resumed>) = 0 [pid 5472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5471] write(3, "1000", 4 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5473] setpgid(0, 0 [pid 5472] <... openat resumed>) = 3 [pid 5471] <... write resumed>) = 4 [pid 5470] close(5 [pid 5042] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... openat resumed>) = 3 [pid 5473] <... setpgid resumed>) = 0 [pid 5472] write(3, "1000", 4 [pid 5471] close(3 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] fstat(3, [pid 5473] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5472] <... write resumed>) = 4 [pid 5471] <... close resumed>) = 0 [pid 5470] close(6 [pid 5042] lstat("./61/binderfs", [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5473] <... symlink resumed>) = 0 [pid 5472] close(3 [pid 5471] read(200, [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] getdents64(3, [pid 5472] <... close resumed>) = 0 [pid 5471] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5470] close(7 [pid 5042] unlink("./61/binderfs" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5472] read(200, [pid 5471] symlink("/dev/binderfs", "./binderfs" [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5472] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5471] <... symlink resumed>) = 0 [pid 5470] close(8 [pid 5042] umount2("./61/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5472] symlink("/dev/binderfs", "./binderfs" [pid 5471] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./59/binderfs", [pid 5473] <... symlink resumed>) = 0 [pid 5472] <... symlink resumed>) = 0 [pid 5471] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(9 [pid 5042] lstat("./61/cgroup.net", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5473] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5472] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5471] close(3 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./59/binderfs" [pid 5473] <... symlink resumed>) = 0 [pid 5472] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(10 [pid 5042] unlink("./61/cgroup.net" [pid 5040] <... unlink resumed>) = 0 [pid 5473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5472] close(3 [pid 5471] close(4 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./59/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] <... openat resumed>) = 3 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(11 [pid 5042] umount2("./61/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5473] write(3, "1000", 4 [pid 5472] close(4 [pid 5471] close(5 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./59/cgroup.net", [pid 5473] <... write resumed>) = 4 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(12 [pid 5042] lstat("./61/cgroup.cpu", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5473] close(3 [pid 5472] close(5 [pid 5471] close(6 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./59/cgroup.net" [pid 5473] <... close resumed>) = 0 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(13 [pid 5042] unlink("./61/cgroup.cpu" [pid 5040] <... unlink resumed>) = 0 [pid 5473] read(200, [pid 5472] close(6 [pid 5471] close(7 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./59/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(14 [pid 5042] umount2("./61/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5473] symlink("/dev/binderfs", "./binderfs" [pid 5472] close(7 [pid 5471] close(8 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./59/cgroup.cpu", [pid 5473] <... symlink resumed>) = 0 [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(15 [pid 5042] lstat("./61/cgroup", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5473] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5472] close(8 [pid 5471] close(9 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] unlink("./59/cgroup.cpu" [pid 5473] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(16 [pid 5042] unlink("./61/cgroup" [pid 5040] <... unlink resumed>) = 0 [pid 5473] close(3 [pid 5472] close(9 [pid 5471] close(10 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./59/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(17 [pid 5042] getdents64(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5473] close(4 [pid 5472] close(10 [pid 5471] close(11 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] lstat("./59/cgroup", [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(18 [pid 5042] close(3 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5473] close(5 [pid 5472] close(11 [pid 5471] close(12 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5040] unlink("./59/cgroup" [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(19 [pid 5042] rmdir("./61" [pid 5040] <... unlink resumed>) = 0 [pid 5473] close(6 [pid 5472] close(12 [pid 5471] close(13 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... rmdir resumed>) = 0 [pid 5040] getdents64(3, [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(20 [pid 5042] mkdir("./62", 0777 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5473] close(7 [pid 5472] close(13 [pid 5471] close(14 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5040] close(3 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(21 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... close resumed>) = 0 ./strace-static-x86_64: Process 5474 attached [pid 5473] close(8 [pid 5472] close(14 [pid 5471] close(15 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] rmdir("./59" [pid 5474] set_robust_list(0x555556f426e0, 24 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(22 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 64 [pid 5040] <... rmdir resumed>) = 0 [pid 5474] <... set_robust_list resumed>) = 0 [pid 5473] close(9 [pid 5472] close(15 [pid 5471] close(16 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] mkdir("./60", 0777 [pid 5474] chdir("./62" [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(23 [pid 5040] <... mkdir resumed>) = 0 [pid 5474] <... chdir resumed>) = 0 [pid 5473] close(10 [pid 5472] close(16 [pid 5471] close(17 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5475 attached [pid 5474] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(24 [pid 5475] set_robust_list(0x555556f426e0, 24 [pid 5474] <... prctl resumed>) = 0 [pid 5473] close(11 [pid 5472] close(17 [pid 5471] close(18 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... set_robust_list resumed>) = 0 [pid 5474] setpgid(0, 0 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(25 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 62 [pid 5475] chdir("./60" [pid 5474] <... setpgid resumed>) = 0 [pid 5473] close(12 [pid 5472] close(18 [pid 5471] close(19 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... chdir resumed>) = 0 [pid 5474] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(26 [pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5474] <... symlink resumed>) = 0 [pid 5473] close(13 [pid 5472] close(19 [pid 5471] close(20 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... prctl resumed>) = 0 [pid 5474] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(27 [pid 5475] setpgid(0, 0 [pid 5474] <... symlink resumed>) = 0 [pid 5473] close(14 [pid 5472] close(20 [pid 5471] close(21 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... setpgid resumed>) = 0 [pid 5474] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(28 [pid 5475] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5474] <... symlink resumed>) = 0 [pid 5473] close(15 [pid 5472] close(21 [pid 5471] close(22 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... symlink resumed>) = 0 [pid 5474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] close(29 [pid 5475] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5474] <... openat resumed>) = 3 [pid 5473] close(16 [pid 5472] close(22 [pid 5471] close(23 [pid 5470] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... symlink resumed>) = 0 [pid 5474] write(3, "1000", 4 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5475] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5474] <... write resumed>) = 4 [pid 5473] close(17 [pid 5472] close(23 [pid 5471] close(24 [pid 5470] <... write resumed>) = 335 [pid 5475] <... symlink resumed>) = 0 [pid 5474] close(3 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] exit_group(0 [pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5474] <... close resumed>) = 0 [pid 5473] close(18 [pid 5472] close(24 [pid 5471] close(25 [pid 5470] <... exit_group resumed>) = ? [pid 5475] <... openat resumed>) = 3 [pid 5474] read(200, [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5470] +++ exited with 0 +++ [pid 5475] write(3, "1000", 4 [pid 5474] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5473] close(19 [pid 5472] close(25 [pid 5471] close(26 [pid 5475] <... write resumed>) = 4 [pid 5474] symlink("/dev/binderfs", "./binderfs" [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5475] close(3 [pid 5474] <... symlink resumed>) = 0 [pid 5473] close(20 [pid 5472] close(26 [pid 5471] close(27 [pid 5475] <... close resumed>) = 0 [pid 5474] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] read(200, [pid 5474] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(21 [pid 5472] close(27 [pid 5471] close(28 [pid 5475] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5474] close(3 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] symlink("/dev/binderfs", "./binderfs" [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(22 [pid 5472] close(28 [pid 5471] close(29 [pid 5475] <... symlink resumed>) = 0 [pid 5474] close(4 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5475] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(23 [pid 5472] close(29 [pid 5471] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5475] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(5 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5471] <... write resumed>) = 335 [pid 5045] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5475] close(3 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5473] close(24 [pid 5472] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5471] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(6 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... write resumed>) = 335 [pid 5471] <... exit_group resumed>) = ? [pid 5045] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5475] close(4 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(25 [pid 5472] exit_group(0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(7 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5472] <... exit_group resumed>) = ? [pid 5045] <... openat resumed>) = 3 [pid 5475] close(5 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(26 [pid 5472] +++ exited with 0 +++ [pid 5471] +++ exited with 0 +++ [pid 5045] fstat(3, [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(8 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] close(6 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(27 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(9 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5475] close(7 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(28 [pid 5045] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(10 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5039] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5475] close(8 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] close(29 [pid 5045] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(11 [pid 5473] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5475] close(9 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5473] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] lstat("./67/binderfs", [pid 5043] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(12 [pid 5473] <... write resumed>) = 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... openat resumed>) = 3 [pid 5039] getdents64(3, [pid 5475] close(10 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5473] exit_group(0 [pid 5045] unlink("./67/binderfs" [pid 5043] fstat(3, [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(13 [pid 5473] <... exit_group resumed>) = ? [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5475] close(11 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./67/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] +++ exited with 0 +++ [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(14 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] close(12 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./67/cgroup.net", [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] lstat("./57/binderfs", [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(15 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5475] close(13 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./67/cgroup.net" [pid 5044] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(16 [pid 5045] <... unlink resumed>) = 0 [pid 5039] unlink("./57/binderfs" [pid 5475] close(14 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./62/binderfs", [pid 5474] close(17 [pid 5044] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./67/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... openat resumed>) = 3 [pid 5043] unlink("./62/binderfs" [pid 5039] umount2("./57/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5475] close(15 [pid 5474] close(18 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] fstat(3, [pid 5043] <... unlink resumed>) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./67/cgroup.cpu", [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] close(16 [pid 5474] close(19 [pid 5043] umount2("./62/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./57/cgroup.net", [pid 5475] close(17 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./67/cgroup.cpu" [pid 5044] getdents64(3, [pid 5043] lstat("./62/cgroup.net", [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5045] <... unlink resumed>) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(20 [pid 5045] umount2("./67/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] unlink("./57/cgroup.net" [pid 5475] close(18 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./62/cgroup.net" [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(21 [pid 5045] lstat("./67/cgroup", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5475] close(19 [pid 5474] close(22 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] lstat("./65/binderfs", [pid 5043] umount2("./62/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./57/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./67/cgroup" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] close(20 [pid 5474] close(23 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./65/binderfs" [pid 5043] lstat("./62/cgroup.cpu", [pid 5039] lstat("./57/cgroup.cpu", [pid 5475] close(21 [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] close(24 [pid 5045] getdents64(3, [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5475] close(22) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] umount2("./65/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./62/cgroup.cpu" [pid 5039] unlink("./57/cgroup.cpu" [pid 5475] close(23 [pid 5474] close(25 [pid 5045] close(3 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5044] lstat("./65/cgroup.net", [pid 5043] umount2("./62/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./57/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5475] close(24 [pid 5474] close(26 [pid 5045] rmdir("./67" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5044] unlink("./65/cgroup.net" [pid 5043] lstat("./62/cgroup", [pid 5039] lstat("./57/cgroup", [pid 5475] close(25 [pid 5474] close(27 [pid 5045] mkdir("./68", 0777 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 [pid 5044] umount2("./65/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./62/cgroup" [pid 5039] unlink("./57/cgroup" [pid 5475] close(26 [pid 5474] close(28 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5476 attached [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] lstat("./65/cgroup.cpu", [pid 5043] getdents64(3, [pid 5039] getdents64(3, [pid 5476] set_robust_list(0x555556f426e0, 24 [pid 5475] close(27 [pid 5474] close(29 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 70 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5476] <... set_robust_list resumed>) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./65/cgroup.cpu" [pid 5043] close(3 [pid 5039] close(3 [pid 5475] close(28 [pid 5474] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5039] <... close resumed>) = 0 [pid 5474] <... write resumed>) = 335 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./65/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] rmdir("./62" [pid 5039] rmdir("./57" [pid 5476] chdir("./68" [pid 5475] close(29 [pid 5474] exit_group(0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... rmdir resumed>) = 0 [pid 5039] <... rmdir resumed>) = 0 [pid 5476] <... chdir resumed>) = 0 [pid 5475] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5474] <... exit_group resumed>) = ? [pid 5044] lstat("./65/cgroup", write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5043] mkdir("./63", 0777 [pid 5039] mkdir("./58", 0777 [pid 5476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5475] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5474] +++ exited with 0 +++ [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5044] unlink("./65/cgroup" [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5478 attached ./strace-static-x86_64: Process 5477 attached [pid 5476] <... prctl resumed>) = 0 [pid 5475] <... write resumed>) = 335 [pid 5044] <... unlink resumed>) = 0 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5478] set_robust_list(0x555556f426e0, 24 [pid 5477] set_robust_list(0x555556f426e0, 24 [pid 5476] setpgid(0, 0 [pid 5475] exit_group(0 [pid 5044] getdents64(3, [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 65 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5478] <... set_robust_list resumed>) = 0 [pid 5477] <... set_robust_list resumed>) = 0 [pid 5476] <... setpgid resumed>) = 0 [pid 5475] <... exit_group resumed>) = ? [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... restart_syscall resumed>) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 60 [pid 5478] chdir("./58" [pid 5477] chdir("./63" [pid 5044] close(3 [pid 5478] <... chdir resumed>) = 0 [pid 5477] <... chdir resumed>) = 0 [pid 5476] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5044] <... close resumed>) = 0 [pid 5478] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5477] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] rmdir("./65" [pid 5042] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] <... prctl resumed>) = 0 [pid 5477] <... prctl resumed>) = 0 [pid 5476] <... symlink resumed>) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5478] setpgid(0, 0 [pid 5477] setpgid(0, 0 [pid 5476] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5044] mkdir("./66", 0777 [pid 5042] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5478] <... setpgid resumed>) = 0 [pid 5477] <... setpgid resumed>) = 0 [pid 5476] <... symlink resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5478] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5477] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5476] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] fstat(3, ./strace-static-x86_64: Process 5479 attached [pid 5478] <... symlink resumed>) = 0 [pid 5477] <... symlink resumed>) = 0 [pid 5476] <... symlink resumed>) = 0 [pid 5475] +++ exited with 0 +++ [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5479] set_robust_list(0x555556f426e0, 24 [pid 5478] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5477] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 68 [pid 5042] getdents64(3, [pid 5479] <... set_robust_list resumed>) = 0 [pid 5478] <... symlink resumed>) = 0 [pid 5477] <... symlink resumed>) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5479] chdir("./66" [pid 5478] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5477] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5476] <... openat resumed>) = 3 [pid 5042] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5479] <... chdir resumed>) = 0 [pid 5478] <... symlink resumed>) = 0 [pid 5477] <... symlink resumed>) = 0 [pid 5476] write(3, "1000", 4 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5479] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5476] <... write resumed>) = 4 [pid 5042] lstat("./62/binderfs", [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5479] <... prctl resumed>) = 0 [pid 5478] <... openat resumed>) = 3 [pid 5477] <... openat resumed>) = 3 [pid 5476] close(3 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5479] setpgid(0, 0 [pid 5478] write(3, "1000", 4 [pid 5477] write(3, "1000", 4 [pid 5476] <... close resumed>) = 0 [pid 5042] unlink("./62/binderfs" [pid 5040] <... restart_syscall resumed>) = 0 [pid 5479] <... setpgid resumed>) = 0 [pid 5478] <... write resumed>) = 4 [pid 5477] <... write resumed>) = 4 [pid 5476] read(200, [pid 5042] <... unlink resumed>) = 0 [pid 5479] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5478] close(3 [pid 5477] close(3 [pid 5042] umount2("./62/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5479] <... symlink resumed>) = 0 [pid 5478] <... close resumed>) = 0 [pid 5477] <... close resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5479] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5478] read(200, [pid 5477] read(200, [pid 5476] symlink("/dev/binderfs", "./binderfs" [pid 5042] lstat("./62/cgroup.net", [pid 5479] <... symlink resumed>) = 0 [pid 5478] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5477] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5476] <... symlink resumed>) = 0 [pid 5479] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5478] symlink("/dev/binderfs", "./binderfs" [pid 5477] symlink("/dev/binderfs", "./binderfs" [pid 5042] unlink("./62/cgroup.net" [pid 5476] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5040] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5479] <... symlink resumed>) = 0 [pid 5478] <... symlink resumed>) = 0 [pid 5477] <... symlink resumed>) = 0 [pid 5476] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5478] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5477] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5476] close(3 [pid 5042] umount2("./62/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5479] <... openat resumed>) = 3 [pid 5478] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... openat resumed>) = 3 [pid 5479] write(3, "1000", 4 [pid 5478] close(3 [pid 5477] close(3 [pid 5476] close(4 [pid 5042] lstat("./62/cgroup.cpu", [pid 5040] fstat(3, [pid 5479] <... write resumed>) = 4 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5479] close(3 [pid 5478] close(4 [pid 5477] close(4 [pid 5476] close(5 [pid 5040] getdents64(3, [pid 5479] <... close resumed>) = 0 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./62/cgroup.cpu" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5479] read(200, [pid 5478] close(5 [pid 5477] close(5 [pid 5476] close(6 [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5479] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./62/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5479] symlink("/dev/binderfs", "./binderfs" [pid 5478] close(6 [pid 5477] close(6 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5479] <... symlink resumed>) = 0 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(7 [pid 5042] lstat("./62/cgroup", [pid 5040] lstat("./60/binderfs", [pid 5479] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5478] close(7 [pid 5477] close(7 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5479] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./62/cgroup" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5479] close(3 [pid 5478] close(8 [pid 5477] close(8 [pid 5042] <... unlink resumed>) = 0 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(8 [pid 5042] getdents64(3, [pid 5040] unlink("./60/binderfs" [pid 5479] close(4 [pid 5478] close(9 [pid 5477] close(9 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(9 [pid 5042] close(3 [pid 5040] <... unlink resumed>) = 0 [pid 5479] close(5 [pid 5478] close(10 [pid 5477] close(10 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(10 [pid 5042] rmdir("./62" [pid 5040] umount2("./60/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5479] close(6 [pid 5478] close(11 [pid 5477] close(11 [pid 5042] <... rmdir resumed>) = 0 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./63", 0777 [pid 5479] close(7 [pid 5478] close(12 [pid 5477] close(12 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(11 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5480 attached [pid 5479] close(8 [pid 5478] close(13 [pid 5477] close(13 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./60/cgroup.net", [pid 5480] set_robust_list(0x555556f426e0, 24 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(12 [pid 5480] <... set_robust_list resumed>) = 0 [pid 5479] close(9 [pid 5478] close(14 [pid 5477] close(14 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 65 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5476] close(13 [pid 5040] unlink("./60/cgroup.net" [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5476] close(14 [pid 5040] umount2("./60/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5476] close(15 [pid 5040] lstat("./60/cgroup.cpu", [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5476] close(16 [pid 5040] unlink("./60/cgroup.cpu" [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5479] close(10 [pid 5477] close(15 [pid 5476] close(17 [pid 5040] umount2("./60/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5479] close(11 [pid 5477] close(16 [pid 5476] close(18 [pid 5040] lstat("./60/cgroup", [pid 5480] chdir("./63" [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(15 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5480] <... chdir resumed>) = 0 [pid 5479] close(12 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(17 [pid 5476] close(19 [pid 5040] unlink("./60/cgroup" [pid 5480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(16 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5480] <... prctl resumed>) = 0 [pid 5479] close(13 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(18 [pid 5476] close(20 [pid 5040] getdents64(3, [pid 5480] setpgid(0, 0 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(17 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... setpgid resumed>) = 0 [pid 5479] close(14 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(19 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5480] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(18 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(21 [pid 5480] <... symlink resumed>) = 0 [pid 5479] close(15 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(20 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] close(3 [pid 5480] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(19 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... symlink resumed>) = 0 [pid 5479] close(16 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(21 [pid 5476] close(22 [pid 5040] <... close resumed>) = 0 [pid 5480] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(20 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... symlink resumed>) = 0 [pid 5479] close(17 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(22 [pid 5040] rmdir("./60" [pid 5480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(21 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... openat resumed>) = 3 [pid 5479] close(18 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(23 [pid 5476] close(23 [pid 5480] write(3, "1000", 4 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(22 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... rmdir resumed>) = 0 [pid 5480] <... write resumed>) = 4 [pid 5479] close(19 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(24 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(3 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(23 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(24 [pid 5040] mkdir("./61", 0777 [pid 5480] <... close resumed>) = 0 [pid 5479] close(20 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(25 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] read(200, [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(24 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(25 [pid 5040] <... mkdir resumed>) = 0 [pid 5480] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5479] close(21 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(26 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] symlink("/dev/binderfs", "./binderfs" [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(25 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(26 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5480] <... symlink resumed>) = 0 [pid 5479] close(22 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(27 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5481 attached [pid 5480] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(26 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(27 [pid 5481] set_robust_list(0x555556f426e0, 24 [pid 5480] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(23 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(28 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] <... set_robust_list resumed>) = 0 [pid 5480] close(3 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(27 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(28 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 63 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(24 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] close(29 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] chdir("./61" [pid 5480] close(4 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(28 [pid 5477] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5476] close(29 [pid 5481] <... chdir resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(25 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5477] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5476] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5481] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5480] close(5 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] close(29 [pid 5477] <... write resumed>) = 335 [pid 5476] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5481] <... prctl resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(26 [pid 5478] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5477] exit_group(0 [pid 5476] <... write resumed>) = 335 [pid 5481] setpgid(0, 0 [pid 5480] close(6 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5478] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5477] <... exit_group resumed>) = ? [pid 5476] exit_group(0 [pid 5481] <... setpgid resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(27 [pid 5478] <... write resumed>) = 335 [pid 5477] +++ exited with 0 +++ [pid 5476] <... exit_group resumed>) = ? [pid 5481] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5480] close(7 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5478] exit_group(0 [pid 5476] +++ exited with 0 +++ [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5481] <... symlink resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(28 [pid 5478] <... exit_group resumed>) = ? [pid 5481] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5480] close(8 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5481] <... symlink resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] close(29 [pid 5478] +++ exited with 0 +++ [pid 5045] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5481] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5480] close(9 [pid 5479] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5481] <... symlink resumed>) = 0 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5479] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5480] close(10 [pid 5479] <... write resumed>) = 335 [pid 5045] <... openat resumed>) = 3 [pid 5043] <... openat resumed>) = 3 [pid 5481] <... openat resumed>) = 3 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] exit_group(0 [pid 5045] fstat(3, [pid 5481] write(3, "1000", 4 [pid 5043] fstat(3, [pid 5481] <... write resumed>) = 4 [pid 5481] close(3) = 0 [pid 5481] read(200, 0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5481] symlink("/dev/binderfs", "./binderfs" [pid 5480] close(11 [pid 5481] <... symlink resumed>) = 0 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5481] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5479] <... exit_group resumed>) = ? [pid 5481] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5481] close(3 [pid 5480] close(12 [pid 5043] getdents64(3, [pid 5039] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(4) = -1 EBADF (Bad file descriptor) [pid 5481] close(5) = -1 EBADF (Bad file descriptor) [pid 5481] close(6 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5481] close(7 [pid 5480] close(13 [pid 5043] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(8 [pid 5479] +++ exited with 0 +++ [pid 5480] close(14 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./68/binderfs", [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5043] lstat("./63/binderfs", [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5480] close(15 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] getdents64(3, [pid 5481] close(9 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./68/binderfs" [pid 5043] unlink("./63/binderfs" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(16 [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5039] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5481] close(10 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./68/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./63/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(17 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./58/binderfs", [pid 5481] close(11 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./68/cgroup.net", [pid 5044] <... openat resumed>) = 3 [pid 5043] lstat("./63/cgroup.net", [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(18 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] fstat(3, [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] unlink("./58/binderfs" [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./68/cgroup.net" [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] unlink("./63/cgroup.net" [pid 5039] <... unlink resumed>) = 0 [pid 5481] close(12 [pid 5480] close(19 [pid 5045] <... unlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5043] <... unlink resumed>) = 0 [pid 5039] umount2("./58/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./68/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] umount2("./63/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5480] close(20 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./58/cgroup.net", [pid 5481] close(13 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./68/cgroup.cpu", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./63/cgroup.cpu", [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(21 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] lstat("./66/binderfs", [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] unlink("./58/cgroup.net" [pid 5481] close(14 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./68/cgroup.cpu" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] unlink("./63/cgroup.cpu" [pid 5039] <... unlink resumed>) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(22 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./66/binderfs" [pid 5043] <... unlink resumed>) = 0 [pid 5039] umount2("./58/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5481] close(15 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./68/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] umount2("./63/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(23 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./66/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./58/cgroup.cpu", [pid 5481] close(16 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./68/cgroup", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./63/cgroup", [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(24 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] lstat("./66/cgroup.net", [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] unlink("./58/cgroup.cpu" [pid 5481] close(17 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./68/cgroup" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] unlink("./63/cgroup" [pid 5039] <... unlink resumed>) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(25 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./66/cgroup.net" [pid 5043] <... unlink resumed>) = 0 [pid 5039] umount2("./58/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5481] close(18 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... unlink resumed>) = 0 [pid 5043] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(26 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] umount2("./66/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] lstat("./58/cgroup", [pid 5481] close(19 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] close(3 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(27 [pid 5045] <... close resumed>) = 0 [pid 5044] lstat("./66/cgroup.cpu", [pid 5043] <... close resumed>) = 0 [pid 5039] unlink("./58/cgroup" [pid 5481] close(20 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./68" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] rmdir("./63" [pid 5039] <... unlink resumed>) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(28 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] unlink("./66/cgroup.cpu" [pid 5043] <... rmdir resumed>) = 0 [pid 5039] getdents64(3, [pid 5481] close(21 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./69", 0777 [pid 5044] <... unlink resumed>) = 0 [pid 5043] mkdir("./64", 0777 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] close(29 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] umount2("./66/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... mkdir resumed>) = 0 [pid 5039] close(3 [pid 5481] close(22 [pid 5480] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... close resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory ./strace-static-x86_64: Process 5483 attached ./strace-static-x86_64: Process 5482 attached [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] lstat("./66/cgroup", [pid 5039] rmdir("./58" [pid 5483] set_robust_list(0x555556f426e0, 24 [pid 5482] set_robust_list(0x555556f426e0, 24 [pid 5481] close(23 [pid 5480] <... write resumed>) = 335 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 71 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 66 [pid 5039] <... rmdir resumed>) = 0 [pid 5483] <... set_robust_list resumed>) = 0 [pid 5482] <... set_robust_list resumed>) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5480] exit_group(0 [pid 5044] unlink("./66/cgroup" [pid 5039] mkdir("./59", 0777 [pid 5483] chdir("./64" [pid 5482] chdir("./69" [pid 5481] close(24 [pid 5480] <... exit_group resumed>) = ? [pid 5044] <... unlink resumed>) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5483] <... chdir resumed>) = 0 [pid 5482] <... chdir resumed>) = 0 [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] close(25) = -1 EBADF (Bad file descriptor) [pid 5481] close(26) = -1 EBADF (Bad file descriptor) [pid 5481] close(27) = -1 EBADF (Bad file descriptor) [pid 5481] close(28) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5481] close(29 [pid 5044] getdents64(3, [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5483] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5481] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5481] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5481] <... write resumed>) = 335 [pid 5481] exit_group(0 [pid 5044] close(3 [pid 5482] <... prctl resumed>) = 0 [pid 5483] <... prctl resumed>) = 0 [pid 5482] setpgid(0, 0 [pid 5481] <... exit_group resumed>) = ? [pid 5044] <... close resumed>) = 0 ./strace-static-x86_64: Process 5484 attached [pid 5483] setpgid(0, 0 [pid 5482] <... setpgid resumed>) = 0 [pid 5481] +++ exited with 0 +++ [pid 5482] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5044] rmdir("./66" [pid 5483] <... setpgid resumed>) = 0 [pid 5484] set_robust_list(0x555556f426e0, 24 [pid 5482] <... symlink resumed>) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 61 [pid 5484] <... set_robust_list resumed>) = 0 [pid 5483] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5482] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5044] mkdir("./67", 0777 [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5484] chdir("./59" [pid 5483] <... symlink resumed>) = 0 [pid 5482] <... symlink resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5040] <... restart_syscall resumed>) = 0 [pid 5484] <... chdir resumed>) = 0 [pid 5483] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5482] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5480] +++ exited with 0 +++ [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5040] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5040] fstat(3, {st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] getdents64(3, ./strace-static-x86_64: Process 5485 attached 0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5485] set_robust_list(0x555556f426e0, 24 [pid 5483] <... symlink resumed>) = 0 [pid 5040] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] <... set_robust_list resumed>) = 0 [pid 5484] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5483] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5482] <... symlink resumed>) = 0 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 69 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5485] chdir("./67" [pid 5484] <... prctl resumed>) = 0 [pid 5483] <... symlink resumed>) = 0 [pid 5482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] lstat("./61/binderfs", [pid 5485] <... chdir resumed>) = 0 [pid 5484] setpgid(0, 0 [pid 5483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5482] <... openat resumed>) = 3 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5485] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5484] <... setpgid resumed>) = 0 [pid 5483] <... openat resumed>) = 3 [pid 5482] write(3, "1000", 4 [pid 5042] <... restart_syscall resumed>) = 0 [pid 5485] <... prctl resumed>) = 0 [pid 5484] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5483] write(3, "1000", 4 [pid 5482] <... write resumed>) = 4 [pid 5040] unlink("./61/binderfs" [pid 5485] setpgid(0, 0 [pid 5484] <... symlink resumed>) = 0 [pid 5483] <... write resumed>) = 4 [pid 5482] close(3 [pid 5485] <... setpgid resumed>) = 0 [pid 5484] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5483] close(3 [pid 5482] <... close resumed>) = 0 [pid 5042] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5485] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5484] <... symlink resumed>) = 0 [pid 5483] <... close resumed>) = 0 [pid 5482] read(200, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./61/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] <... symlink resumed>) = 0 [pid 5484] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5483] read(200, [pid 5482] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5485] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5484] <... symlink resumed>) = 0 [pid 5483] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5482] symlink("/dev/binderfs", "./binderfs" [pid 5042] <... openat resumed>) = 3 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5485] <... symlink resumed>) = 0 [pid 5484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5483] symlink("/dev/binderfs", "./binderfs" [pid 5482] <... symlink resumed>) = 0 [pid 5042] fstat(3, [pid 5485] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5484] <... openat resumed>) = 3 [pid 5483] <... symlink resumed>) = 0 [pid 5482] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] lstat("./61/cgroup.net", [pid 5485] <... symlink resumed>) = 0 [pid 5484] write(3, "1000", 4 [pid 5483] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5482] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5484] <... write resumed>) = 4 [pid 5483] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(3 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5485] <... openat resumed>) = 3 [pid 5484] close(3 [pid 5483] close(3 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] write(3, "1000", 4 [pid 5484] <... close resumed>) = 0 [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(4 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./61/cgroup.net" [pid 5485] <... write resumed>) = 4 [pid 5484] read(200, [pid 5483] close(4 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./63/binderfs", [pid 5485] close(3 [pid 5484] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(5 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5485] <... close resumed>) = 0 [pid 5484] symlink("/dev/binderfs", "./binderfs" [pid 5483] close(5 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./63/binderfs" [pid 5485] read(200, [pid 5484] <... symlink resumed>) = 0 [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(6 [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./61/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5484] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5483] close(6 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./63/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5485] symlink("/dev/binderfs", "./binderfs" [pid 5484] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(7 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5485] <... symlink resumed>) = 0 [pid 5484] close(3 [pid 5483] close(7 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./63/cgroup.net", [pid 5040] lstat("./61/cgroup.cpu", [pid 5485] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(8 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5485] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(4 [pid 5483] close(8 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./63/cgroup.net" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5485] close(3 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(9 [pid 5042] <... unlink resumed>) = 0 [pid 5484] close(5 [pid 5483] close(9 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./63/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(10 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./61/cgroup.cpu" [pid 5485] close(4 [pid 5484] close(6 [pid 5483] close(10 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./63/cgroup.cpu", [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(11 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5485] close(5 [pid 5484] close(7 [pid 5483] close(11 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./63/cgroup.cpu" [pid 5040] umount2("./61/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(12 [pid 5042] <... unlink resumed>) = 0 [pid 5485] close(6 [pid 5484] close(8 [pid 5483] close(12 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./63/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(13 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(9 [pid 5483] close(13 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./63/cgroup", [pid 5040] lstat("./61/cgroup", [pid 5485] close(7 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(14 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(10 [pid 5483] close(14 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./63/cgroup" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5485] close(8 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(15 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./61/cgroup" [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(11 [pid 5483] close(15 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] <... unlink resumed>) = 0 [pid 5485] close(9 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(16 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(12 [pid 5483] close(16 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5040] getdents64(3, [pid 5485] close(10 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(17 [pid 5042] <... close resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(13 [pid 5483] close(17 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./63" [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(18 [pid 5042] <... rmdir resumed>) = 0 [pid 5484] close(14 [pid 5483] close(18 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./64", 0777 [pid 5485] close(11 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(19 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] close(3 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(15 [pid 5483] close(19 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5486 attached [pid 5485] close(12 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(20 [pid 5040] <... close resumed>) = 0 [pid 5486] set_robust_list(0x555556f426e0, 24 [pid 5484] close(16 [pid 5483] close(20 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... set_robust_list resumed>) = 0 [pid 5485] close(13 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(21 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 66 [pid 5040] rmdir("./61" [pid 5484] close(17 [pid 5483] close(21 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] chdir("./64" [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(22 [pid 5040] <... rmdir resumed>) = 0 [pid 5486] <... chdir resumed>) = 0 [pid 5485] close(14 [pid 5484] close(18 [pid 5483] close(22 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(23 [pid 5040] mkdir("./62", 0777 [pid 5484] close(19 [pid 5483] close(23 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(24 [pid 5040] <... mkdir resumed>) = 0 [pid 5485] close(15 [pid 5486] <... prctl resumed>) = 0 [pid 5484] close(20 [pid 5483] close(24 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] setpgid(0, 0 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(25 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5486] <... setpgid resumed>) = 0 [pid 5485] close(16 [pid 5484] close(21 [pid 5483] close(25 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(26 [pid 5484] close(22 [pid 5483] close(26 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5487 attached [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(27 [pid 5486] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(23 [pid 5483] close(27 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 64 [pid 5487] set_robust_list(0x555556f426e0, 24 [pid 5486] <... symlink resumed>) = 0 [pid 5485] close(17 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(28 [pid 5487] <... set_robust_list resumed>) = 0 [pid 5486] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(24 [pid 5483] close(28 [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] chdir("./62" [pid 5486] <... symlink resumed>) = 0 [pid 5485] close(18 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] close(29 [pid 5487] <... chdir resumed>) = 0 [pid 5486] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(25 [pid 5483] close(29 [pid 5487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5486] <... symlink resumed>) = 0 [pid 5485] close(19 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5487] <... prctl resumed>) = 0 [pid 5486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] close(26 [pid 5483] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5487] setpgid(0, 0 [pid 5486] <... openat resumed>) = 3 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5485] close(20 [pid 5483] <... write resumed>) = 335 [pid 5482] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5487] <... setpgid resumed>) = 0 [pid 5486] write(3, "1000", 4 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5483] exit_group(0 [pid 5482] <... write resumed>) = 335 [pid 5487] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5486] <... write resumed>) = 4 [pid 5485] close(21 [pid 5484] close(27 [pid 5483] <... exit_group resumed>) = ? [pid 5487] <... symlink resumed>) = 0 [pid 5486] close(3 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] exit_group(0 [pid 5487] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5486] <... close resumed>) = 0 [pid 5485] close(22 [pid 5484] close(28 [pid 5483] +++ exited with 0 +++ [pid 5486] read(200, [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] <... exit_group resumed>) = ? [pid 5486] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5485] close(23 [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5487] <... symlink resumed>) = 0 [pid 5486] symlink("/dev/binderfs", "./binderfs" [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... symlink resumed>) = 0 [pid 5485] close(24 [pid 5486] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(25 [pid 5484] close(29 [pid 5487] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 5486] close(3 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5482] +++ exited with 0 +++ write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(26 [pid 5484] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5487] <... openat resumed>) = 3 [pid 5486] close(4 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... write resumed>) = 335 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] write(3, "1000", 4 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(27 [pid 5484] exit_group(0 [pid 5486] close(5 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5484] <... exit_group resumed>) = ? [pid 5043] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5487] <... write resumed>) = 4 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(28 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5486] close(6 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] close(29 [pid 5486] close(7 [pid 5485] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5486] close(8 [pid 5485] <... write resumed>) = 335 [pid 5043] <... openat resumed>) = 3 [pid 5487] close(3 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] exit_group(0 [pid 5043] fstat(3, [pid 5045] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5487] <... close resumed>) = 0 [pid 5486] close(9 [pid 5485] <... exit_group resumed>) = ? [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] read(200, [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5485] +++ exited with 0 +++ [pid 5484] +++ exited with 0 +++ [pid 5045] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] getdents64(3, [pid 5487] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5486] close(10 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5487] symlink("/dev/binderfs", "./binderfs" [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5487] <... symlink resumed>) = 0 [pid 5486] close(11 [pid 5045] <... openat resumed>) = 3 [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5043] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5487] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5044] <... restart_syscall resumed>) = 0 [pid 5487] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(12 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] close(3 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(13 [pid 5045] getdents64(3, [pid 5044] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./64/binderfs", [pid 5487] close(4 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(14 [pid 5045] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5487] close(5 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... openat resumed>) = 3 [pid 5043] unlink("./64/binderfs" [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(15 [pid 5044] fstat(3, [pid 5487] close(6 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./69/binderfs", [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5486] close(16 [pid 5044] getdents64(3, [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5486] close(17 [pid 5044] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5486] close(18 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] lstat("./67/binderfs", [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5487] close(7 [pid 5486] close(19 [pid 5044] unlink("./67/binderfs" [pid 5043] umount2("./64/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./69/binderfs" [pid 5044] <... unlink resumed>) = 0 [pid 5487] close(8 [pid 5486] close(20 [pid 5044] umount2("./67/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./64/cgroup.net", [pid 5487] close(9 [pid 5486] close(21 [pid 5045] umount2("./69/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./67/cgroup.net", [pid 5039] <... openat resumed>) = 3 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5487] close(10 [pid 5486] close(22 [pid 5045] lstat("./69/cgroup.net", [pid 5044] unlink("./67/cgroup.net" [pid 5043] unlink("./64/cgroup.net" [pid 5039] fstat(3, [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5486] close(23 [pid 5044] umount2("./67/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5487] close(11 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./69/cgroup.net" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./64/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(24 [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./67/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] close(12 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./69/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] getdents64(3, [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(25 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./67/cgroup.cpu" [pid 5043] lstat("./64/cgroup.cpu", [pid 5487] close(13 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./69/cgroup.cpu", [pid 5044] <... unlink resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(26 [pid 5044] umount2("./67/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5487] close(14 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(27 [pid 5044] lstat("./67/cgroup", [pid 5043] unlink("./64/cgroup.cpu" [pid 5487] close(15 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./69/cgroup.cpu" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(28 [pid 5044] unlink("./67/cgroup" [pid 5043] <... unlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5487] close(16 [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5039] lstat("./59/binderfs", [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] close(29 [pid 5045] umount2("./69/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] getdents64(3, [pid 5043] umount2("./64/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5486] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5486] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] close(3 [pid 5486] <... write resumed>) = 335 [pid 5044] <... close resumed>) = 0 [pid 5486] exit_group(0 [pid 5044] rmdir("./67" [pid 5487] close(17 [pid 5486] <... exit_group resumed>) = ? [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5486] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] mkdir("./68", 0777 [pid 5487] close(18 [pid 5045] lstat("./69/cgroup", [pid 5044] <... mkdir resumed>) = 0 [pid 5043] lstat("./64/cgroup", [pid 5039] unlink("./59/binderfs" [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5487] close(19 [pid 5045] unlink("./69/cgroup" [pid 5043] unlink("./64/cgroup" [pid 5039] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5488 attached [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5039] umount2("./59/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5488] set_robust_list(0x555556f426e0, 24 [pid 5045] getdents64(3, [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 70 [pid 5042] <... restart_syscall resumed>) = 0 [pid 5488] <... set_robust_list resumed>) = 0 [pid 5487] close(20 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5488] chdir("./68" [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] lstat("./59/cgroup.net", [pid 5488] <... chdir resumed>) = 0 [pid 5487] close(21 [pid 5045] <... close resumed>) = 0 [pid 5043] close(3 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5488] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./69" [pid 5043] <... close resumed>) = 0 [pid 5042] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./59/cgroup.net" [pid 5488] <... prctl resumed>) = 0 [pid 5487] close(22 [pid 5045] <... rmdir resumed>) = 0 [pid 5043] rmdir("./64" [pid 5039] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5488] setpgid(0, 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./70", 0777 [pid 5043] <... rmdir resumed>) = 0 [pid 5039] umount2("./59/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5488] <... setpgid resumed>) = 0 [pid 5487] close(23 [pid 5045] <... mkdir resumed>) = 0 [pid 5043] mkdir("./65", 0777 [pid 5042] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... mkdir resumed>) = 0 [pid 5039] lstat("./59/cgroup.cpu", [pid 5488] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5487] close(24 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... openat resumed>) = 3 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 ./strace-static-x86_64: Process 5490 attached ./strace-static-x86_64: Process 5489 attached [pid 5488] <... symlink resumed>) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] fstat(3, [pid 5039] unlink("./59/cgroup.cpu" [pid 5490] set_robust_list(0x555556f426e0, 24 [pid 5489] set_robust_list(0x555556f426e0, 24 [pid 5488] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5487] close(25 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 72 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 67 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5490] <... set_robust_list resumed>) = 0 [pid 5489] <... set_robust_list resumed>) = 0 [pid 5488] <... symlink resumed>) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./59/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5489] chdir("./65" [pid 5488] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5487] close(26 [pid 5042] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5490] chdir("./70" [pid 5489] <... chdir resumed>) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./59/cgroup", [pid 5490] <... chdir resumed>) = 0 [pid 5489] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5488] <... symlink resumed>) = 0 [pid 5487] close(27 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5490] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5489] <... prctl resumed>) = 0 [pid 5488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5490] <... prctl resumed>) = 0 [pid 5489] setpgid(0, 0 [pid 5487] close(28 [pid 5039] unlink("./59/cgroup" [pid 5488] <... openat resumed>) = 3 [pid 5490] setpgid(0, 0 [pid 5489] <... setpgid resumed>) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5490] <... setpgid resumed>) = 0 [pid 5489] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5488] write(3, "1000", 4 [pid 5487] close(29 [pid 5039] getdents64(3, [pid 5490] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5489] <... symlink resumed>) = 0 [pid 5488] <... write resumed>) = 4 [pid 5042] lstat("./64/binderfs", [pid 5490] <... symlink resumed>) = 0 [pid 5488] close(3 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5490] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5489] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5488] <... close resumed>) = 0 [pid 5487] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./64/binderfs" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5490] <... symlink resumed>) = 0 [pid 5489] <... symlink resumed>) = 0 [pid 5488] read(200, [pid 5487] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5042] <... unlink resumed>) = 0 [pid 5490] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5489] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5488] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5487] <... write resumed>) = 335 [pid 5042] umount2("./64/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] close(3 [pid 5490] <... symlink resumed>) = 0 [pid 5489] <... symlink resumed>) = 0 [pid 5488] symlink("/dev/binderfs", "./binderfs" [pid 5487] exit_group(0 [pid 5039] <... close resumed>) = 0 [pid 5490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5488] <... symlink resumed>) = 0 [pid 5487] <... exit_group resumed>) = ? [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] rmdir("./59" [pid 5490] <... openat resumed>) = 3 [pid 5489] <... openat resumed>) = 3 [pid 5488] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5487] +++ exited with 0 +++ [pid 5042] lstat("./64/cgroup.net", [pid 5039] <... rmdir resumed>) = 0 [pid 5490] write(3, "1000", 4 [pid 5489] write(3, "1000", 4 [pid 5488] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] mkdir("./60", 0777 [pid 5489] <... write resumed>) = 4 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5489] close(3 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5490] <... write resumed>) = 4 [pid 5489] <... close resumed>) = 0 [pid 5488] close(3 [pid 5042] unlink("./64/cgroup.net"./strace-static-x86_64: Process 5491 attached [pid 5490] close(3 [pid 5489] read(200, [pid 5491] set_robust_list(0x555556f426e0, 24 [pid 5489] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] <... set_robust_list resumed>) = 0 [pid 5490] <... close resumed>) = 0 [pid 5489] symlink("/dev/binderfs", "./binderfs" [pid 5488] close(4 [pid 5042] <... unlink resumed>) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 62 [pid 5491] chdir("./60" [pid 5490] read(200, [pid 5489] <... symlink resumed>) = 0 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./64/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5491] <... chdir resumed>) = 0 [pid 5490] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5489] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5488] close(5 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5491] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5490] symlink("/dev/binderfs", "./binderfs" [pid 5489] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./64/cgroup.cpu", [pid 5491] <... prctl resumed>) = 0 [pid 5489] close(3 [pid 5490] <... symlink resumed>) = 0 [pid 5491] setpgid(0, 0 [pid 5490] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(6 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5491] <... setpgid resumed>) = 0 [pid 5490] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(4 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./64/cgroup.cpu" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5491] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5490] close(3 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(7 [pid 5042] <... unlink resumed>) = 0 [pid 5040] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5491] <... symlink resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(5 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./64/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... openat resumed>) = 3 [pid 5491] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5490] close(4 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(8 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] fstat(3, [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./64/cgroup", [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5490] close(5 [pid 5489] close(6 [pid 5488] close(9 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] getdents64(3, [pid 5491] <... symlink resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./64/cgroup" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5491] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5490] close(6 [pid 5489] close(7 [pid 5488] close(10 [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5491] <... symlink resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5490] close(7 [pid 5488] close(11 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] lstat("./62/binderfs", [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(8 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5490] close(8 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(12 [pid 5042] <... close resumed>) = 0 [pid 5040] unlink("./62/binderfs" [pid 5491] <... openat resumed>) = 3 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(9 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./64" [pid 5040] <... unlink resumed>) = 0 [pid 5491] write(3, "1000", 4 [pid 5490] close(9 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(13 [pid 5042] <... rmdir resumed>) = 0 [pid 5040] umount2("./62/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5491] <... write resumed>) = 4 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(10 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./65", 0777 [pid 5491] close(3 [pid 5490] close(10 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(14 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5491] <... close resumed>) = 0 [pid 5489] close(11 [pid 5491] read(200, [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5040] lstat("./62/cgroup.net", [pid 5491] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5490] close(11 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(15 [pid 5491] symlink("/dev/binderfs", "./binderfs" [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(12 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5491] <... symlink resumed>) = 0 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5490] close(12 [pid 5489] close(13 [pid 5488] close(16 [pid 5491] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5492 attached [pid 5491] close(3 [pid 5489] close(14 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./62/cgroup.net" [pid 5492] set_robust_list(0x555556f426e0, 24 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(13 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(17 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 67 [pid 5040] <... unlink resumed>) = 0 [pid 5492] <... set_robust_list resumed>) = 0 [pid 5491] close(4 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(15 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./62/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5492] chdir("./65" [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(14 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(18 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5492] <... chdir resumed>) = 0 [pid 5491] close(5 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(16 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./62/cgroup.cpu", [pid 5492] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(15 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(19 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5492] <... prctl resumed>) = 0 [pid 5491] close(6 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(17 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./62/cgroup.cpu" [pid 5492] setpgid(0, 0 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(16 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(20 [pid 5040] <... unlink resumed>) = 0 [pid 5492] <... setpgid resumed>) = 0 [pid 5491] close(7 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(18 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./62/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5492] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(17 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(21 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5492] <... symlink resumed>) = 0 [pid 5491] close(8 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(19 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./62/cgroup", [pid 5492] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(18 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(22 [pid 5492] <... symlink resumed>) = 0 [pid 5491] close(9 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5492] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(19 [pid 5489] close(20 [pid 5488] close(23 [pid 5040] unlink("./62/cgroup" [pid 5492] <... symlink resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(10 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5490] close(20 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(24 [pid 5491] close(11 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(21 [pid 5489] close(21 [pid 5488] close(25 [pid 5040] getdents64(3, [pid 5492] <... openat resumed>) = 3 [pid 5491] close(12 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] write(3, "1000", 4 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(22 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] close(3 [pid 5492] <... write resumed>) = 4 [pid 5491] close(13 [pid 5490] close(22 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(26 [pid 5040] <... close resumed>) = 0 [pid 5492] close(3 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(23 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] rmdir("./62" [pid 5492] <... close resumed>) = 0 [pid 5491] close(14 [pid 5490] close(23 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(27 [pid 5040] <... rmdir resumed>) = 0 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(24 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] mkdir("./63", 0777 [pid 5492] read(200, [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(24 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(28 [pid 5040] <... mkdir resumed>) = 0 [pid 5492] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5491] close(15 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(25 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5493 attached [pid 5492] symlink("/dev/binderfs", "./binderfs" [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(25 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] close(29 [pid 5493] set_robust_list(0x555556f426e0, 24 [pid 5492] <... symlink resumed>) = 0 [pid 5491] close(16 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(26 [pid 5488] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 65 [pid 5493] <... set_robust_list resumed>) = 0 [pid 5492] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(26 [pid 5492] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(17 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5493] chdir("./63" [pid 5492] close(3 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] close(27 [pid 5489] close(27 [pid 5488] <... write resumed>) = 335 [pid 5493] <... chdir resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(18 [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] exit_group(0 [pid 5493] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5492] close(4 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(19 [pid 5489] close(28 [pid 5490] close(28 [pid 5493] <... prctl resumed>) = 0 [pid 5492] close(5 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5488] <... exit_group resumed>) = ? [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(20 [pid 5493] setpgid(0, 0 [pid 5492] close(6 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] <... setpgid resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(21 [pid 5490] close(29 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5492] close(7 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] close(29 [pid 5488] +++ exited with 0 +++ [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(22 [pid 5492] close(8 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] <... symlink resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(23 [pid 5490] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5493] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5492] close(9 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] <... write resumed>) = 335 [pid 5489] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(24 [pid 5493] <... symlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5492] close(10 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5490] exit_group(0 [pid 5489] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5493] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(25 [pid 5490] <... exit_group resumed>) = ? [pid 5489] <... write resumed>) = 335 [pid 5044] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] <... symlink resumed>) = 0 [pid 5492] close(11 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(26 [pid 5492] close(12 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(27 [pid 5493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5490] +++ exited with 0 +++ [pid 5489] exit_group(0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5492] close(13 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5489] <... exit_group resumed>) = ? [pid 5493] <... openat resumed>) = 3 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(28 [pid 5044] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5493] write(3, "1000", 4 [pid 5492] close(14 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5044] <... openat resumed>) = 3 [pid 5493] <... write resumed>) = 4 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] close(29 [pid 5489] +++ exited with 0 +++ [pid 5045] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] fstat(3, [pid 5493] close(3 [pid 5492] close(15 [pid 5491] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5493] <... close resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] getdents64(3, [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5493] read(200, [pid 5492] close(16 [pid 5045] <... openat resumed>) = 3 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] <... write resumed>) = 335 [pid 5045] fstat(3, [pid 5044] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5493] symlink("/dev/binderfs", "./binderfs" [pid 5492] close(17 [pid 5491] exit_group(0 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5493] <... symlink resumed>) = 0 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5491] <... exit_group resumed>) = ? [pid 5045] getdents64(3, [pid 5044] lstat("./68/binderfs", [pid 5043] <... openat resumed>) = 3 [pid 5493] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5492] close(18 [pid 5491] +++ exited with 0 +++ [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] fstat(3, [pid 5493] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./68/binderfs" [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5493] close(3 [pid 5492] close(19 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] getdents64(3, [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./70/binderfs", [pid 5044] umount2("./68/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... restart_syscall resumed>) = 0 [pid 5493] close(4 [pid 5492] close(20 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./70/binderfs" [pid 5044] lstat("./68/cgroup.net", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5493] close(5 [pid 5492] close(21 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./65/binderfs", [pid 5039] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./70/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./68/cgroup.net" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5493] close(6 [pid 5492] close(22 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./65/binderfs" [pid 5039] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./70/cgroup.net", [pid 5044] umount2("./68/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5493] close(7 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./65/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] fstat(3, [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] close(23 [pid 5045] unlink("./70/cgroup.net" [pid 5044] lstat("./68/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5493] close(8 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./65/cgroup.net", [pid 5039] getdents64(3, [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./70/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./68/cgroup.cpu" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5493] close(9 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./65/cgroup.net" [pid 5039] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./70/cgroup.cpu", [pid 5044] umount2("./68/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5493] close(10 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./65/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./60/binderfs", [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] close(24 [pid 5045] unlink("./70/cgroup.cpu" [pid 5044] lstat("./68/cgroup", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5493] close(11 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] lstat("./65/cgroup.cpu", [pid 5039] unlink("./60/binderfs" [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./70/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./68/cgroup" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5493] close(12 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./65/cgroup.cpu" [pid 5039] umount2("./60/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] close(25 [pid 5045] lstat("./70/cgroup", [pid 5044] getdents64(3, [pid 5493] close(13 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] close(26 [pid 5045] unlink("./70/cgroup" [pid 5044] close(3 [pid 5043] umount2("./65/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./60/cgroup.net", [pid 5493] close(14 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] close(27 [pid 5045] getdents64(3, [pid 5044] rmdir("./68" [pid 5043] lstat("./65/cgroup", [pid 5039] unlink("./60/cgroup.net" [pid 5493] close(15 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] close(28 [pid 5045] close(3 [pid 5044] mkdir("./69", 0777 [pid 5043] unlink("./65/cgroup" [pid 5039] umount2("./60/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] close(16 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] close(29 [pid 5045] rmdir("./70" [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] getdents64(3, [pid 5039] lstat("./60/cgroup.cpu", [pid 5493] close(17 [pid 5492] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 ./strace-static-x86_64: Process 5494 attached write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] mkdir("./71", 0777 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 71 [pid 5043] close(3 [pid 5039] unlink("./60/cgroup.cpu" [pid 5494] set_robust_list(0x555556f426e0, 24 [pid 5493] close(18 [pid 5492] <... write resumed>) = 335 [pid 5045] <... mkdir resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5494] <... set_robust_list resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] exit_group(0 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] rmdir("./65" [pid 5039] umount2("./60/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5495 attached [pid 5494] chdir("./69" [pid 5493] close(19 [pid 5492] <... exit_group resumed>) = ? [pid 5043] <... rmdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5495] set_robust_list(0x555556f426e0, 24 [pid 5494] <... chdir resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5492] +++ exited with 0 +++ [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 73 [pid 5043] mkdir("./66", 0777 [pid 5039] lstat("./60/cgroup", [pid 5495] <... set_robust_list resumed>) = 0 [pid 5494] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5493] close(20 [pid 5043] <... mkdir resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5495] chdir("./71" [pid 5494] <... prctl resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5039] unlink("./60/cgroup"./strace-static-x86_64: Process 5496 attached [pid 5495] <... chdir resumed>) = 0 [pid 5494] setpgid(0, 0 [pid 5493] close(21 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5039] <... unlink resumed>) = 0 [pid 5496] set_robust_list(0x555556f426e0, 24 [pid 5495] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5494] <... setpgid resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 68 [pid 5042] <... restart_syscall resumed>) = 0 [pid 5039] getdents64(3, [pid 5496] <... set_robust_list resumed>) = 0 [pid 5495] <... prctl resumed>) = 0 [pid 5494] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5493] close(22 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5496] chdir("./66" [pid 5495] setpgid(0, 0 [pid 5494] <... symlink resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] close(3 [pid 5496] <... chdir resumed>) = 0 [pid 5495] <... setpgid resumed>) = 0 [pid 5494] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5493] close(23 [pid 5042] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... close resumed>) = 0 [pid 5496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5495] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5494] <... symlink resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] rmdir("./60" [pid 5496] <... prctl resumed>) = 0 [pid 5495] <... symlink resumed>) = 0 [pid 5494] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5493] close(24 [pid 5042] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... rmdir resumed>) = 0 [pid 5496] setpgid(0, 0 [pid 5495] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5494] <... symlink resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5039] mkdir("./61", 0777 [pid 5496] <... setpgid resumed>) = 0 [pid 5495] <... symlink resumed>) = 0 [pid 5494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5493] close(25 [pid 5042] fstat(3, [pid 5039] <... mkdir resumed>) = 0 [pid 5496] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5495] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5494] <... openat resumed>) = 3 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5496] <... symlink resumed>) = 0 [pid 5495] <... symlink resumed>) = 0 [pid 5494] write(3, "1000", 4 [pid 5493] close(26 [pid 5042] getdents64(3, ./strace-static-x86_64: Process 5497 attached [pid 5496] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5494] <... write resumed>) = 4 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] set_robust_list(0x555556f426e0, 24 [pid 5496] <... symlink resumed>) = 0 [pid 5494] close(3 [pid 5493] close(27 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5497] <... set_robust_list resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5496] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5495] <... openat resumed>) = 3 [pid 5494] <... close resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 63 [pid 5497] chdir("./61" [pid 5496] <... symlink resumed>) = 0 [pid 5494] read(200, [pid 5493] close(28 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] <... chdir resumed>) = 0 [pid 5496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5494] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./65/binderfs", [pid 5497] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5496] <... openat resumed>) = 3 [pid 5495] write(3, "1000", 4 [pid 5494] symlink("/dev/binderfs", "./binderfs" [pid 5493] close(29 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5497] <... prctl resumed>) = 0 [pid 5496] write(3, "1000", 4 [pid 5494] <... symlink resumed>) = 0 [pid 5493] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./65/binderfs" [pid 5497] setpgid(0, 0 [pid 5496] <... write resumed>) = 4 [pid 5495] <... write resumed>) = 4 [pid 5494] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5493] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] <... unlink resumed>) = 0 [pid 5497] <... setpgid resumed>) = 0 [pid 5496] close(3 [pid 5495] close(3 [pid 5494] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] <... write resumed>) = 335 [pid 5042] umount2("./65/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5496] <... close resumed>) = 0 [pid 5495] <... close resumed>) = 0 [pid 5494] close(3 [pid 5493] exit_group(0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] <... symlink resumed>) = 0 [pid 5496] read(200, [pid 5495] read(200, [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5493] <... exit_group resumed>) = ? [pid 5042] lstat("./65/cgroup.net", [pid 5497] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5496] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5495] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5494] close(4 [pid 5493] +++ exited with 0 +++ [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5497] <... symlink resumed>) = 0 [pid 5496] symlink("/dev/binderfs", "./binderfs" [pid 5495] symlink("/dev/binderfs", "./binderfs" [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./65/cgroup.net" [pid 5497] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5496] <... symlink resumed>) = 0 [pid 5495] <... symlink resumed>) = 0 [pid 5494] close(5 [pid 5042] <... unlink resumed>) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5497] <... symlink resumed>) = 0 [pid 5496] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./65/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5496] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5494] close(6 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] <... openat resumed>) = 3 [pid 5496] close(3 [pid 5495] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./65/cgroup.cpu", [pid 5040] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5497] write(3, "1000", 4 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(3 [pid 5494] close(7 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5497] <... write resumed>) = 4 [pid 5496] close(4 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./65/cgroup.cpu" [pid 5040] fstat(3, [pid 5497] close(3 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(4 [pid 5494] close(8 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5497] <... close resumed>) = 0 [pid 5496] close(5 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./65/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] getdents64(3, [pid 5497] read(200, [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(5 [pid 5494] close(9 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5497] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5496] close(6 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./65/cgroup", [pid 5040] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] symlink("/dev/binderfs", "./binderfs" [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(6 [pid 5494] close(10 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] <... symlink resumed>) = 0 [pid 5496] close(7 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./65/cgroup" [pid 5040] lstat("./63/binderfs", [pid 5497] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(7 [pid 5494] close(11 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5497] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(8 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] unlink("./63/binderfs" [pid 5497] close(3 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(8 [pid 5494] close(12 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(9 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5040] umount2("./63/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] close(4 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(9 [pid 5494] close(13 [pid 5042] <... close resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(10 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./65" [pid 5040] lstat("./63/cgroup.net", [pid 5497] close(5 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(10 [pid 5494] close(14 [pid 5042] <... rmdir resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(11 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./66", 0777 [pid 5040] unlink("./63/cgroup.net" [pid 5497] close(6 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(11 [pid 5494] close(15 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(12 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] umount2("./63/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] close(7 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] close(16 [pid 5495] close(12 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(13 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(13 [pid 5040] lstat("./63/cgroup.cpu", [pid 5497] close(8 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] close(17 [pid 5495] close(14) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(15 [pid 5494] close(18 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 ./strace-static-x86_64: Process 5498 attached [pid 5497] close(9 [pid 5496] close(14 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./63/cgroup.cpu" [pid 5498] set_robust_list(0x555556f426e0, 24 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(16 [pid 5494] close(19 [pid 5497] close(10 [pid 5496] close(15 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... set_robust_list resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(17 [pid 5494] close(20 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 68 [pid 5040] <... unlink resumed>) = 0 [pid 5498] chdir("./66" [pid 5497] close(11 [pid 5496] close(16 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./63/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5498] <... chdir resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(18 [pid 5494] close(21 [pid 5498] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5497] close(12 [pid 5496] close(17 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5498] <... prctl resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(19 [pid 5494] close(22 [pid 5040] lstat("./63/cgroup", [pid 5498] setpgid(0, 0 [pid 5497] close(13 [pid 5496] close(18 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... setpgid resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(20 [pid 5494] close(23 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5498] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5497] close(14 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... symlink resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(19 [pid 5495] close(21 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./63/cgroup" [pid 5498] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... symlink resumed>) = 0 [pid 5497] close(15 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(22 [pid 5494] close(24 [pid 5040] <... unlink resumed>) = 0 [pid 5498] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(20 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... symlink resumed>) = 0 [pid 5495] close(23 [pid 5040] getdents64(3, [pid 5498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... openat resumed>) = 3 [pid 5495] close(24 [pid 5497] close(16 [pid 5498] write(3, "1000", 4 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] close(25 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... write resumed>) = 4 [pid 5496] close(21 [pid 5495] close(25 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] close(3 [pid 5497] close(17 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] close(3 [pid 5498] <... close resumed>) = 0 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(26 [pid 5494] close(26 [pid 5498] read(200, [pid 5497] close(18 [pid 5496] close(22 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... close resumed>) = 0 [pid 5498] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(27 [pid 5494] close(27 [pid 5498] symlink("/dev/binderfs", "./binderfs" [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] close(19 [pid 5040] rmdir("./63" [pid 5498] <... symlink resumed>) = 0 [pid 5496] close(23 [pid 5495] close(28 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] close(29 [pid 5494] close(28 [pid 5040] <... rmdir resumed>) = 0 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] close(3 [pid 5497] close(20 [pid 5495] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] mkdir("./64", 0777 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(24 [pid 5495] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5494] close(29 [pid 5498] close(4 [pid 5497] close(21 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... write resumed>) = 335 [pid 5494] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... mkdir resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(25 [pid 5495] exit_group(0 [pid 5494] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5498] close(5 [pid 5497] close(22 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5495] <... exit_group resumed>) = ? [pid 5494] <... write resumed>) = 335 ./strace-static-x86_64: Process 5499 attached [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(26 [pid 5495] +++ exited with 0 +++ [pid 5494] exit_group(0 [pid 5499] set_robust_list(0x555556f426e0, 24 [pid 5498] close(6 [pid 5497] close(23 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5494] <... exit_group resumed>) = ? [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 66 [pid 5499] <... set_robust_list resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(27 [pid 5494] +++ exited with 0 +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5499] chdir("./64" [pid 5498] close(7 [pid 5497] close(24 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5499] <... chdir resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... restart_syscall resumed>) = 0 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5498] close(8 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(28 [pid 5044] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] <... prctl resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] close(25 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5499] setpgid(0, 0 [pid 5498] close(9 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] close(29 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] <... setpgid resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] close(26 [pid 5496] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5499] symlink("/syzcgroup/unified/syz4", "./cgroup"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5498] close(10 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] <... symlink resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] close(27 [pid 5496] <... write resumed>) = 335 [pid 5044] <... openat resumed>) = 3 [pid 5499] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5498] close(11 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] exit_group(0 [pid 5045] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] fstat(3, [pid 5499] <... symlink resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] close(28 [pid 5496] <... exit_group resumed>) = ? [pid 5045] <... openat resumed>) = 3 [pid 5499] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5498] close(12 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5496] +++ exited with 0 +++ [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5045] fstat(3, [pid 5499] <... symlink resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] close(29 [pid 5044] getdents64(3, [pid 5499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5498] close(13 [pid 5497] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5499] <... openat resumed>) = 3 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] getdents64(3, [pid 5044] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] write(3, "1000", 4 [pid 5498] close(14 [pid 5497] <... write resumed>) = 335 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] <... write resumed>) = 4 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] exit_group(0 [pid 5045] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./69/binderfs", [pid 5043] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5499] close(3 [pid 5498] close(15 [pid 5497] <... exit_group resumed>) = ? [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5499] <... close resumed>) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5497] +++ exited with 0 +++ [pid 5045] lstat("./71/binderfs", [pid 5043] <... openat resumed>) = 3 [pid 5499] read(200, 0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5499] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5499] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5498] close(16 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] unlink("./69/binderfs" [pid 5043] fstat(3, [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5499] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./71/binderfs" [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5499] close(3 [pid 5498] close(17 [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./69/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] getdents64(3, [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./71/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5499] close(4) = -1 EBADF (Bad file descriptor) [pid 5499] close(5) = -1 EBADF (Bad file descriptor) [pid 5499] close(6) = -1 EBADF (Bad file descriptor) [pid 5499] close(7 [pid 5498] close(18 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./69/cgroup.net", [pid 5043] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] close(8 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./71/cgroup.net", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] close(19 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] unlink("./69/cgroup.net" [pid 5043] lstat("./66/binderfs", [pid 5499] close(9 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./71/cgroup.net" [pid 5044] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] close(20 [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./69/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5499] close(10 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./71/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./66/binderfs" [pid 5039] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] close(21 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./69/cgroup.cpu", [pid 5043] <... unlink resumed>) = 0 [pid 5499] close(11 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./71/cgroup.cpu", [pid 5043] umount2("./66/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] close(22 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5499] close(12 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] unlink("./69/cgroup.cpu" [pid 5043] lstat("./66/cgroup.net", [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] close(23 [pid 5045] unlink("./71/cgroup.cpu" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] getdents64(3, [pid 5499] close(13 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./66/cgroup.net" [pid 5045] <... unlink resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./71/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./69/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] close(14 [pid 5498] close(24 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5039] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./71/cgroup", [pid 5044] lstat("./69/cgroup", [pid 5043] umount2("./66/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] close(15 [pid 5498] close(25 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./61/binderfs", [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./71/cgroup" [pid 5044] unlink("./69/cgroup" [pid 5043] lstat("./66/cgroup.cpu", [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5499] close(16 [pid 5498] close(26 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] unlink("./61/binderfs" [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./66/cgroup.cpu" [pid 5039] <... unlink resumed>) = 0 [pid 5499] close(17 [pid 5498] close(27 [pid 5045] getdents64(3, [pid 5044] getdents64(3, [pid 5043] <... unlink resumed>) = 0 [pid 5039] umount2("./61/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] umount2("./66/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] close(18 [pid 5498] close(28 [pid 5045] close(3 [pid 5044] close(3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./61/cgroup.net", [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./66/cgroup", [pid 5499] close(19 [pid 5498] close(29 [pid 5045] <... close resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5498] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./66/cgroup"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] rmdir("./71" [pid 5044] rmdir("./69" [pid 5043] <... unlink resumed>) = 0 [pid 5039] unlink("./61/cgroup.net" [pid 5499] close(20 [pid 5498] <... write resumed>) = 335 [pid 5045] <... rmdir resumed>) = 0 [pid 5043] getdents64(3, [pid 5498] exit_group(0 [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5498] <... exit_group resumed>) = ? [pid 5045] mkdir("./72", 0777 [pid 5044] mkdir("./70", 0777 [pid 5043] close(3 [pid 5039] <... unlink resumed>) = 0 [pid 5499] close(21 [pid 5498] +++ exited with 0 +++ [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5039] umount2("./61/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] rmdir("./66" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5502 attached ./strace-static-x86_64: Process 5501 attached [pid 5499] close(22 [pid 5043] <... rmdir resumed>) = 0 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5039] lstat("./61/cgroup.cpu", [pid 5502] set_robust_list(0x555556f426e0, 24 [pid 5501] set_robust_list(0x555556f426e0, 24 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 74 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 72 [pid 5043] mkdir("./67", 0777 [pid 5042] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5502] <... set_robust_list resumed>) = 0 [pid 5501] <... set_robust_list resumed>) = 0 [pid 5499] close(23 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./61/cgroup.cpu" [pid 5043] <... mkdir resumed>) = 0 [pid 5502] chdir("./70" [pid 5501] chdir("./72" [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... unlink resumed>) = 0 [pid 5502] <... chdir resumed>) = 0 [pid 5501] <... chdir resumed>) = 0 [pid 5499] close(24 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... openat resumed>) = 3 [pid 5039] umount2("./61/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5501] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] fstat(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5501] <... prctl resumed>) = 0 [pid 5499] close(25 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] lstat("./61/cgroup", ./strace-static-x86_64: Process 5503 attached [pid 5502] <... prctl resumed>) = 0 [pid 5501] setpgid(0, 0 [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5503] set_robust_list(0x555556f426e0, 24 [pid 5502] setpgid(0, 0 [pid 5501] <... setpgid resumed>) = 0 [pid 5499] close(26 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] unlink("./61/cgroup" [pid 5503] <... set_robust_list resumed>) = 0 [pid 5502] <... setpgid resumed>) = 0 [pid 5501] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 69 [pid 5042] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5503] chdir("./67" [pid 5502] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5501] <... symlink resumed>) = 0 [pid 5499] close(27 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] getdents64(3, [pid 5503] <... chdir resumed>) = 0 [pid 5502] <... symlink resumed>) = 0 [pid 5501] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./66/binderfs", [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5503] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5502] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5501] <... symlink resumed>) = 0 [pid 5499] close(28 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5503] <... prctl resumed>) = 0 [pid 5502] <... symlink resumed>) = 0 [pid 5503] setpgid(0, 0 [pid 5502] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5501] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./66/binderfs" [pid 5039] close(3 [pid 5503] <... setpgid resumed>) = 0 [pid 5502] <... symlink resumed>) = 0 [pid 5503] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5501] <... symlink resumed>) = 0 [pid 5499] close(29 [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... close resumed>) = 0 [pid 5503] <... symlink resumed>) = 0 [pid 5502] <... openat resumed>) = 3 [pid 5501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5499] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5502] write(3, "1000", 4 [pid 5501] <... openat resumed>) = 3 [pid 5499] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] umount2("./66/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] rmdir("./61" [pid 5503] <... symlink resumed>) = 0 [pid 5502] <... write resumed>) = 4 [pid 5503] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5502] close(3 [pid 5503] <... symlink resumed>) = 0 [pid 5502] <... close resumed>) = 0 [pid 5503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5502] read(200, [pid 5503] <... openat resumed>) = 3 [pid 5502] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5501] write(3, "1000", 4 [pid 5499] <... write resumed>) = 335 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... rmdir resumed>) = 0 [pid 5503] write(3, "1000", 4 [pid 5502] symlink("/dev/binderfs", "./binderfs" [pid 5503] <... write resumed>) = 4 [pid 5502] <... symlink resumed>) = 0 [pid 5501] <... write resumed>) = 4 [pid 5499] exit_group(0 [pid 5042] lstat("./66/cgroup.net", [pid 5039] mkdir("./62", 0777 [pid 5503] close(3 [pid 5502] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5503] <... close resumed>) = 0 [pid 5502] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] read(200, [pid 5502] close(3 [pid 5501] close(3 [pid 5499] <... exit_group resumed>) = ? [pid 5503] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5503] symlink("/dev/binderfs", "./binderfs" [pid 5502] close(4 [pid 5503] <... symlink resumed>) = 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5502] close(5 [pid 5503] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(3 [pid 5502] close(6 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(4 [pid 5502] close(7 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(5 [pid 5502] close(8 [pid 5501] read(200, [pid 5042] unlink("./66/cgroup.net" [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5503] close(6 [pid 5502] close(9 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] symlink("/dev/binderfs", "./binderfs" [pid 5042] <... unlink resumed>) = 0 [pid 5503] close(7 [pid 5502] close(10 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... symlink resumed>) = 0 [pid 5499] +++ exited with 0 +++ [pid 5042] umount2("./66/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5504 attached [pid 5503] close(8 [pid 5502] close(11 [pid 5501] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 64 [pid 5504] set_robust_list(0x555556f426e0, 24 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5501] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] <... set_robust_list resumed>) = 0 [pid 5503] close(9 [pid 5502] close(12 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(3 [pid 5042] lstat("./66/cgroup.cpu", [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5504] chdir("./62" [pid 5503] close(10 [pid 5502] close(13 [pid 5504] <... chdir resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5503] close(11 [pid 5502] close(14 [pid 5504] <... prctl resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(4 [pid 5042] unlink("./66/cgroup.cpu" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5504] setpgid(0, 0 [pid 5503] close(12 [pid 5502] close(15 [pid 5504] <... setpgid resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5504] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5503] close(13 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(5 [pid 5042] umount2("./66/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... openat resumed>) = 3 [pid 5504] <... symlink resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] close(16 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] fstat(3, [pid 5504] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5503] close(14 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(6 [pid 5042] lstat("./66/cgroup", [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5504] <... symlink resumed>) = 0 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] close(17 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] getdents64(3, [pid 5504] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5501] close(7 [pid 5042] unlink("./66/cgroup" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5504] <... symlink resumed>) = 0 [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] close(15 [pid 5504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5502] close(18 [pid 5501] close(8 [pid 5042] getdents64(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5504] <... openat resumed>) = 3 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] lstat("./64/binderfs", [pid 5504] write(3, "1000", 4 [pid 5503] close(16 [pid 5502] close(19 [pid 5501] close(9 [pid 5042] close(3 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5504] <... write resumed>) = 4 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5040] unlink("./64/binderfs" [pid 5504] close(3 [pid 5501] close(10 [pid 5042] rmdir("./66" [pid 5040] <... unlink resumed>) = 0 [pid 5504] <... close resumed>) = 0 [pid 5503] close(17 [pid 5502] close(20 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... rmdir resumed>) = 0 [pid 5040] umount2("./64/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5504] read(200, [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(11 [pid 5042] mkdir("./67", 0777 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5504] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5503] close(18 [pid 5502] close(21 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5040] lstat("./64/cgroup.net", [pid 5504] symlink("/dev/binderfs", "./binderfs" [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(12 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5504] <... symlink resumed>) = 0 [pid 5503] close(19 [pid 5502] close(22 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5505 attached [pid 5504] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(13 [pid 5040] unlink("./64/cgroup.net" [pid 5505] set_robust_list(0x555556f426e0, 24 [pid 5504] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(20 [pid 5502] close(23 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 69 [pid 5040] <... unlink resumed>) = 0 [pid 5505] <... set_robust_list resumed>) = 0 [pid 5504] close(3 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(14 [pid 5040] umount2("./64/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5505] chdir("./67" [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(21 [pid 5502] close(24 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5505] <... chdir resumed>) = 0 [pid 5504] close(4 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(15 [pid 5040] lstat("./64/cgroup.cpu", [pid 5505] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(22 [pid 5502] close(25 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5505] <... prctl resumed>) = 0 [pid 5504] close(5 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(16 [pid 5040] unlink("./64/cgroup.cpu" [pid 5505] setpgid(0, 0 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(23 [pid 5502] close(26 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5505] <... setpgid resumed>) = 0 [pid 5504] close(6 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(17 [pid 5040] umount2("./64/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5505] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(24 [pid 5502] close(27 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5505] <... symlink resumed>) = 0 [pid 5504] close(7 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(18 [pid 5040] lstat("./64/cgroup", [pid 5505] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(25 [pid 5502] close(28 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5505] <... symlink resumed>) = 0 [pid 5504] close(8 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(19 [pid 5040] unlink("./64/cgroup" [pid 5505] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(26 [pid 5502] close(29 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] <... unlink resumed>) = 0 [pid 5505] <... symlink resumed>) = 0 [pid 5504] close(9 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(20 [pid 5040] getdents64(3, [pid 5505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(27 [pid 5502] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5505] <... openat resumed>) = 3 [pid 5504] close(10 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... write resumed>) = 335 [pid 5501] close(21 [pid 5040] close(3 [pid 5505] write(3, "1000", 4 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(28 [pid 5502] exit_group(0 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... close resumed>) = 0 [pid 5505] <... write resumed>) = 4 [pid 5504] close(11 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5502] <... exit_group resumed>) = ? [pid 5501] close(22 [pid 5040] rmdir("./64" [pid 5505] close(3 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] close(29 [pid 5502] +++ exited with 0 +++ [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... rmdir resumed>) = 0 [pid 5505] <... close resumed>) = 0 [pid 5504] close(12 [pid 5503] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] close(23 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5040] mkdir("./65", 0777 [pid 5505] read(200, [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... mkdir resumed>) = 0 [pid 5505] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5504] close(13 [pid 5503] <... write resumed>) = 335 [pid 5501] close(24 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5505] symlink("/dev/binderfs", "./binderfs" [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] exit_group(0 [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5506 attached [pid 5505] <... symlink resumed>) = 0 [pid 5504] close(14 [pid 5503] <... exit_group resumed>) = ? [pid 5501] close(25 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 67 [pid 5506] set_robust_list(0x555556f426e0, 24 [pid 5505] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5503] +++ exited with 0 +++ [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... set_robust_list resumed>) = 0 [pid 5505] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(15 [pid 5501] close(26 [pid 5044] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5506] chdir("./65" [pid 5505] close(3 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5506] <... chdir resumed>) = 0 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(16 [pid 5501] close(27 [pid 5044] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5506] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5505] close(4 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... openat resumed>) = 3 [pid 5043] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5506] <... prctl resumed>) = 0 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(17 [pid 5501] close(28 [pid 5044] fstat(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5506] setpgid(0, 0 [pid 5505] close(5 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(18 [pid 5501] close(29 [pid 5044] getdents64(3, [pid 5505] close(6 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(19 [pid 5501] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOWwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5506] <... setpgid resumed>) = 0 [pid 5505] close(7 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... write resumed>) = 335 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... openat resumed>) = 3 [pid 5506] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(20 [pid 5501] exit_group(0 [pid 5044] lstat("./70/binderfs", [pid 5043] fstat(3, [pid 5506] <... symlink resumed>) = 0 [pid 5505] close(8 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5501] <... exit_group resumed>) = ? [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5506] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(21 [pid 5044] unlink("./70/binderfs" [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5506] <... symlink resumed>) = 0 [pid 5505] close(9 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5043] getdents64(3, [pid 5506] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(22 [pid 5501] +++ exited with 0 +++ [pid 5044] umount2("./70/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5506] <... symlink resumed>) = 0 [pid 5505] close(10 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(23 [pid 5044] lstat("./70/cgroup.net", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5506] <... openat resumed>) = 3 [pid 5043] lstat("./67/binderfs", [pid 5506] write(3, "1000", 4 [pid 5505] close(11 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5506] <... write resumed>) = 4 [pid 5043] unlink("./67/binderfs" [pid 5506] close(3 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(24 [pid 5044] unlink("./70/cgroup.net" [pid 5043] <... unlink resumed>) = 0 [pid 5506] <... close resumed>) = 0 [pid 5045] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./67/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5505] close(12 [pid 5506] read(200, [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5506] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5045] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] lstat("./67/cgroup.net", [pid 5506] symlink("/dev/binderfs", "./binderfs" [pid 5045] <... openat resumed>) = 3 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5506] <... symlink resumed>) = 0 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(25 [pid 5045] fstat(3, [pid 5044] umount2("./70/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./67/cgroup.net" [pid 5506] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5505] close(13 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5506] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5043] umount2("./67/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5506] close(3 [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(26 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] lstat("./70/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] close(14 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./67/cgroup.cpu", [pid 5506] close(4 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(27 [pid 5045] lstat("./72/binderfs", [pid 5044] unlink("./70/cgroup.cpu" [pid 5043] unlink("./67/cgroup.cpu" [pid 5506] close(5 [pid 5505] close(15 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(28 [pid 5045] unlink("./72/binderfs" [pid 5044] <... unlink resumed>) = 0 [pid 5043] umount2("./67/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5506] close(6 [pid 5505] close(16 [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./70/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] close(29 [pid 5045] umount2("./72/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./67/cgroup", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5506] close(7 [pid 5505] close(17write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5504] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./70/cgroup", [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] lstat("./72/cgroup.net", [pid 5043] unlink("./67/cgroup" [pid 5506] close(8 [pid 5505] close(18 [pid 5504] <... write resumed>) = 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] exit_group(0 [pid 5045] unlink("./72/cgroup.net" [pid 5043] getdents64(3, [pid 5506] close(9 [pid 5505] close(19 [pid 5504] <... exit_group resumed>) = ? [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./70/cgroup" [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5504] +++ exited with 0 +++ [pid 5045] umount2("./72/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] close(3 [pid 5506] close(10 [pid 5505] close(20 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./72/cgroup.cpu", [pid 5044] getdents64(3, [pid 5043] rmdir("./67" [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5506] close(11 [pid 5505] close(21 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./72/cgroup.cpu" [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] mkdir("./68", 0777 [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5506] close(12 [pid 5505] close(22 [pid 5045] <... unlink resumed>) = 0 [pid 5044] close(3 [pid 5043] <... mkdir resumed>) = 0 [pid 5039] <... restart_syscall resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./72/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5506] close(13 [pid 5505] close(23 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... close resumed>) = 0 ./strace-static-x86_64: Process 5507 attached [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./72/cgroup", [pid 5506] close(14 [pid 5505] close(24 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] rmdir("./70" [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 70 [pid 5507] set_robust_list(0x555556f426e0, 24 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./72/cgroup" [pid 5506] close(15 [pid 5505] close(25 [pid 5045] <... unlink resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5507] <... set_robust_list resumed>) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5039] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] chdir("./68" [pid 5044] mkdir("./71", 0777 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5507] <... chdir resumed>) = 0 [pid 5506] close(16 [pid 5505] close(26 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5039] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5507] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5507] <... prctl resumed>) = 0 [pid 5506] close(17 [pid 5505] close(27 [pid 5039] <... openat resumed>) = 3 [pid 5507] setpgid(0, 0 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 73 [pid 5039] fstat(3, [pid 5507] <... setpgid resumed>) = 0 [pid 5045] <... close resumed>) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5507] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5039] getdents64(3, [pid 5507] <... symlink resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5507] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5039] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5508 attached [pid 5507] <... symlink resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./72" [pid 5508] set_robust_list(0x555556f426e0, 24 [pid 5507] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5506] close(18 [pid 5505] close(28 [pid 5045] <... rmdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5508] <... set_robust_list resumed>) = 0 [pid 5507] <... symlink resumed>) = 0 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./62/binderfs", [pid 5508] chdir("./71" [pid 5507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5506] close(19 [pid 5505] close(29 [pid 5045] mkdir("./73", 0777 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5508] <... chdir resumed>) = 0 [pid 5507] <... openat resumed>) = 3 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5507] write(3, "1000", 4 [pid 5506] close(20 [pid 5505] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] unlink("./62/binderfs"./strace-static-x86_64: Process 5509 attached [pid 5508] <... prctl resumed>) = 0 [pid 5507] <... write resumed>) = 4 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... write resumed>) = 335 [pid 5039] <... unlink resumed>) = 0 [pid 5509] set_robust_list(0x555556f426e0, 24 [pid 5508] setpgid(0, 0 [pid 5507] close(3 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 75 [pid 5509] <... set_robust_list resumed>) = 0 [pid 5508] <... setpgid resumed>) = 0 [pid 5507] <... close resumed>) = 0 [pid 5506] close(21 [pid 5505] exit_group(0 [pid 5039] umount2("./62/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] chdir("./73" [pid 5508] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5509] <... chdir resumed>) = 0 [pid 5508] <... symlink resumed>) = 0 [pid 5507] read(200, [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] <... exit_group resumed>) = ? [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5509] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5508] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5507] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5506] close(22 [pid 5509] <... prctl resumed>) = 0 [pid 5508] <... symlink resumed>) = 0 [pid 5509] setpgid(0, 0 [pid 5508] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5507] symlink("/dev/binderfs", "./binderfs" [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5505] +++ exited with 0 +++ [pid 5039] lstat("./62/cgroup.net", [pid 5509] <... setpgid resumed>) = 0 [pid 5508] <... symlink resumed>) = 0 [pid 5507] <... symlink resumed>) = 0 [pid 5506] close(23 [pid 5509] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5507] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5509] <... symlink resumed>) = 0 [pid 5508] <... openat resumed>) = 3 [pid 5507] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] close(24 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5509] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5508] write(3, "1000", 4 [pid 5507] close(3 [pid 5039] unlink("./62/cgroup.net" [pid 5509] <... symlink resumed>) = 0 [pid 5508] <... write resumed>) = 4 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5508] close(3 [pid 5507] close(4 [pid 5509] <... symlink resumed>) = 0 [pid 5508] <... close resumed>) = 0 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5039] <... unlink resumed>) = 0 [pid 5509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5508] read(200, [pid 5507] close(5 [pid 5506] close(25 [pid 5042] <... restart_syscall resumed>) = 0 [pid 5509] <... openat resumed>) = 3 [pid 5508] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./62/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] write(3, "1000", 4 [pid 5508] symlink("/dev/binderfs", "./binderfs" [pid 5507] close(6 [pid 5506] close(26 [pid 5509] <... write resumed>) = 4 [pid 5508] <... symlink resumed>) = 0 [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5509] close(3 [pid 5508] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5507] close(7 [pid 5506] close(27 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./62/cgroup.cpu", [pid 5509] <... close resumed>) = 0 [pid 5508] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5509] read(200, [pid 5508] close(3 [pid 5507] close(8 [pid 5506] close(28 [pid 5042] <... openat resumed>) = 3 [pid 5039] unlink("./62/cgroup.cpu" [pid 5509] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] fstat(3, [pid 5509] symlink("/dev/binderfs", "./binderfs" [pid 5508] close(4 [pid 5507] close(9 [pid 5506] close(29 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5509] <... symlink resumed>) = 0 [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5506] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5509] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5508] close(5 [pid 5507] close(10 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] umount2("./62/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5509] close(3 [pid 5508] close(6 [pid 5507] close(11 [pid 5506] <... write resumed>) = 335 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] exit_group(0 [pid 5042] lstat("./67/binderfs", [pid 5039] lstat("./62/cgroup", [pid 5509] close(4 [pid 5508] close(7 [pid 5507] close(12 [pid 5506] <... exit_group resumed>) = ? [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./67/binderfs" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5509] close(5 [pid 5508] close(8 [pid 5507] close(13 [pid 5042] <... unlink resumed>) = 0 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5506] +++ exited with 0 +++ [pid 5042] umount2("./67/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./62/cgroup" [pid 5509] close(6 [pid 5508] close(9 [pid 5507] close(14 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./67/cgroup.net", [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5039] <... unlink resumed>) = 0 [pid 5509] close(7 [pid 5508] close(10 [pid 5507] close(15 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5039] getdents64(3, [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./67/cgroup.net" [pid 5040] <... restart_syscall resumed>) = 0 [pid 5509] close(8 [pid 5508] close(11 [pid 5507] close(16 [pid 5042] <... unlink resumed>) = 0 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./67/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5509] close(9 [pid 5508] close(12 [pid 5507] close(17 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./67/cgroup.cpu", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] close(3 [pid 5509] close(10 [pid 5508] close(13 [pid 5507] close(18 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./67/cgroup.cpu" [pid 5040] <... openat resumed>) = 3 [pid 5039] <... close resumed>) = 0 [pid 5509] close(11 [pid 5508] close(14 [pid 5507] close(19 [pid 5042] <... unlink resumed>) = 0 [pid 5040] fstat(3, [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./67/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] rmdir("./62" [pid 5509] close(12 [pid 5508] close(15 [pid 5507] close(20 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] getdents64(3, [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./67/cgroup", [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... rmdir resumed>) = 0 [pid 5509] close(13 [pid 5508] close(16 [pid 5507] close(21 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./67/cgroup" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] mkdir("./63", 0777 [pid 5509] close(14 [pid 5508] close(17 [pid 5507] close(22 [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./65/binderfs", [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5509] close(15 [pid 5508] close(18 [pid 5507] close(23 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] unlink("./65/binderfs" [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5040] <... unlink resumed>) = 0 [pid 5509] close(16 [pid 5508] close(19 [pid 5507] close(24 [pid 5042] <... close resumed>) = 0 [pid 5040] umount2("./65/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./67" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5510 attached [pid 5509] close(17 [pid 5508] close(20 [pid 5507] close(25 [pid 5042] <... rmdir resumed>) = 0 [pid 5040] lstat("./65/cgroup.net", [pid 5510] set_robust_list(0x555556f426e0, 24 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./68", 0777 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5510] <... set_robust_list resumed>) = 0 [pid 5509] close(18 [pid 5508] close(21 [pid 5507] close(26 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] unlink("./65/cgroup.net" [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 65 [pid 5510] chdir("./63" [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5511 attached [pid 5510] <... chdir resumed>) = 0 [pid 5509] close(19 [pid 5508] close(22 [pid 5507] close(27 [pid 5040] umount2("./65/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5511] set_robust_list(0x555556f426e0, 24 [pid 5510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 70 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5511] <... set_robust_list resumed>) = 0 [pid 5510] <... prctl resumed>) = 0 [pid 5509] close(20 [pid 5508] close(23 [pid 5507] close(28write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] lstat("./65/cgroup.cpu", [pid 5511] chdir("./68" [pid 5510] setpgid(0, 0 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5510] <... setpgid resumed>) = 0 [pid 5509] close(21 [pid 5508] close(24 [pid 5507] close(29 [pid 5040] unlink("./65/cgroup.cpu" [pid 5510] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5511] <... chdir resumed>) = 0 [pid 5510] <... symlink resumed>) = 0 [pid 5509] close(22 [pid 5508] close(25 [pid 5507] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] umount2("./65/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5510] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... write resumed>) = 335 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5511] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5510] <... symlink resumed>) = 0 [pid 5509] close(23 [pid 5508] close(26 [pid 5507] exit_group(0 [pid 5040] lstat("./65/cgroup", [pid 5511] <... prctl resumed>) = 0 [pid 5510] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5507] <... exit_group resumed>) = ? [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5511] setpgid(0, 0 [pid 5510] <... symlink resumed>) = 0 [pid 5509] close(24 [pid 5508] close(27 [pid 5507] +++ exited with 0 +++ [pid 5040] unlink("./65/cgroup" [pid 5510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] <... unlink resumed>) = 0 [pid 5511] <... setpgid resumed>) = 0 [pid 5510] <... openat resumed>) = 3 [pid 5509] close(25 [pid 5508] close(28 [pid 5040] getdents64(3, [pid 5511] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5510] write(3, "1000", 4 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5511] <... symlink resumed>) = 0 [pid 5510] <... write resumed>) = 4 [pid 5509] close(26 [pid 5508] close(29 [pid 5040] close(3write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5511] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5510] close(3 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... close resumed>) = 0 [pid 5511] <... symlink resumed>) = 0 [pid 5510] <... close resumed>) = 0 [pid 5509] close(27 [pid 5508] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] rmdir("./65" [pid 5511] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5510] read(200, [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... write resumed>) = 335 [pid 5043] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... rmdir resumed>) = 0 [pid 5511] <... symlink resumed>) = 0 [pid 5510] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5509] close(28 [pid 5508] exit_group(0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] mkdir("./66", 0777 [pid 5511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5510] symlink("/dev/binderfs", "./binderfs" [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5508] <... exit_group resumed>) = ? [pid 5043] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... mkdir resumed>) = 0 [pid 5511] <... openat resumed>) = 3 [pid 5510] <... symlink resumed>) = 0 [pid 5509] close(29 [pid 5508] +++ exited with 0 +++ [pid 5043] <... openat resumed>) = 3 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5511] write(3, "1000", 4 [pid 5510] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5509] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory ./strace-static-x86_64: Process 5512 attached [pid 5511] <... write resumed>) = 4 [pid 5510] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5512] set_robust_list(0x555556f426e0, 24 [pid 5511] close(3 [pid 5510] close(3 [pid 5509] <... write resumed>) = 335 [pid 5044] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] getdents64(3, [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 68 [pid 5512] <... set_robust_list resumed>) = 0 [pid 5511] <... close resumed>) = 0 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] exit_group(0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5512] chdir("./66" [pid 5511] read(200, [pid 5510] close(4 [pid 5509] <... exit_group resumed>) = ? [pid 5044] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5512] <... chdir resumed>) = 0 [pid 5511] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5509] +++ exited with 0 +++ [pid 5044] <... openat resumed>) = 3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5512] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5511] symlink("/dev/binderfs", "./binderfs" [pid 5510] close(5 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5044] fstat(3, [pid 5043] lstat("./68/binderfs", [pid 5512] <... prctl resumed>) = 0 [pid 5511] <... symlink resumed>) = 0 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] setpgid(0, 0 [pid 5511] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5512] <... setpgid resumed>) = 0 [pid 5511] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(6 [pid 5512] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5511] close(3 [pid 5044] getdents64(3, [pid 5043] unlink("./68/binderfs" [pid 5512] <... symlink resumed>) = 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5511] close(4 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... unlink resumed>) = 0 [pid 5512] <... symlink resumed>) = 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(7 [pid 5512] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5511] close(5 [pid 5044] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./68/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5512] <... symlink resumed>) = 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5511] close(6 [pid 5510] close(8 [pid 5045] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5512] <... openat resumed>) = 3 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./71/binderfs", [pid 5043] lstat("./68/cgroup.net", [pid 5512] write(3, "1000", 4 [pid 5511] close(7 [pid 5510] close(9 [pid 5045] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5512] <... write resumed>) = 4 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./71/binderfs" [pid 5043] unlink("./68/cgroup.net" [pid 5512] close(3 [pid 5511] close(8 [pid 5510] close(10 [pid 5045] <... openat resumed>) = 3 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5512] <... close resumed>) = 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./71/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./68/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] fstat(3, [pid 5512] read(200, [pid 5511] close(9 [pid 5510] close(11 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5512] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] lstat("./71/cgroup.net", [pid 5043] lstat("./68/cgroup.cpu", [pid 5512] symlink("/dev/binderfs", "./binderfs" [pid 5511] close(10 [pid 5510] close(12 [pid 5045] getdents64(3, [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] unlink("./71/cgroup.net" [pid 5043] unlink("./68/cgroup.cpu" [pid 5512] <... symlink resumed>) = 0 [pid 5511] close(11 [pid 5510] close(13 [pid 5045] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5512] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./71/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./68/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5512] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(14 [pid 5045] lstat("./73/binderfs", [pid 5044] lstat("./71/cgroup.cpu", [pid 5043] lstat("./68/cgroup", [pid 5512] close(3 [pid 5511] close(12 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(15 [pid 5045] unlink("./73/binderfs" [pid 5044] unlink("./71/cgroup.cpu" [pid 5043] unlink("./68/cgroup" [pid 5512] close(4 [pid 5511] close(13 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5044] umount2("./71/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] lstat("./71/cgroup", [pid 5043] close(3 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(16 [pid 5045] umount2("./73/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... close resumed>) = 0 [pid 5512] close(5 [pid 5511] close(14 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./71/cgroup" [pid 5043] rmdir("./68" [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(17 [pid 5045] lstat("./73/cgroup.net", [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5512] close(6 [pid 5511] close(15 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5043] mkdir("./69", 0777 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(18 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5512] close(7 [pid 5511] close(16 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./73/cgroup.net" [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(19 [pid 5045] <... unlink resumed>) = 0 [pid 5044] close(3 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5512] close(8 [pid 5511] close(17 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./73/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(20 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... close resumed>) = 0 [pid 5512] close(9 [pid 5511] close(18 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./73/cgroup.cpu", [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(21 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5512] close(10 [pid 5511] close(19 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./73/cgroup.cpu"./strace-static-x86_64: Process 5513 attached [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(22 [pid 5045] <... unlink resumed>) = 0 [pid 5044] rmdir("./71" [pid 5513] set_robust_list(0x555556f426e0, 24 [pid 5512] close(11 [pid 5511] close(20 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./73/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5513] <... set_robust_list resumed>) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(23 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 71 [pid 5513] chdir("./69" [pid 5512] close(12 [pid 5511] close(21 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./73/cgroup", [pid 5513] <... chdir resumed>) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(24 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] mkdir("./72", 0777 [pid 5513] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5512] close(13 [pid 5511] close(22 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./73/cgroup" [pid 5513] <... prctl resumed>) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(25 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5513] setpgid(0, 0 [pid 5512] close(14 [pid 5511] close(23 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5513] <... setpgid resumed>) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(26 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5513] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5512] close(15 [pid 5511] close(24 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5513] <... symlink resumed>) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(27 [pid 5045] <... close resumed>) = 0 [pid 5513] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5512] close(16 [pid 5511] close(25 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./73" [pid 5513] <... symlink resumed>) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(28 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5513] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5512] close(17 [pid 5511] close(26 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./74", 0777 [pid 5513] <... symlink resumed>) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] close(29 [pid 5045] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5514 attached [pid 5513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5512] close(18 [pid 5511] close(27 [pid 5510] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5514] set_robust_list(0x555556f426e0, 24 [pid 5513] <... openat resumed>) = 3 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 74 [pid 5514] <... set_robust_list resumed>) = 0 [pid 5512] close(19 [pid 5511] close(28 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5515 attached [pid 5514] chdir("./72" [pid 5513] write(3, "1000", 4 [pid 5512] close(20 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... write resumed>) = 335 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 76 [pid 5515] set_robust_list(0x555556f426e0, 24 [pid 5514] <... chdir resumed>) = 0 [pid 5513] <... write resumed>) = 4 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] close(29 [pid 5510] exit_group(0 [pid 5515] <... set_robust_list resumed>) = 0 [pid 5514] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5513] close(3 [pid 5512] close(21 [pid 5511] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5510] <... exit_group resumed>) = ? [pid 5515] chdir("./74" [pid 5514] <... prctl resumed>) = 0 [pid 5513] <... close resumed>) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5515] <... chdir resumed>) = 0 [pid 5514] setpgid(0, 0 [pid 5513] read(200, [pid 5512] close(22 [pid 5511] <... write resumed>) = 335 [pid 5510] +++ exited with 0 +++ [pid 5515] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5514] <... setpgid resumed>) = 0 [pid 5513] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5511] exit_group(0 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5515] <... prctl resumed>) = 0 [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5515] setpgid(0, 0 [pid 5514] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5039] <... restart_syscall resumed>) = 0 [pid 5515] <... setpgid resumed>) = 0 [pid 5514] <... symlink resumed>) = 0 [pid 5513] symlink("/dev/binderfs", "./binderfs" [pid 5512] close(23 [pid 5511] <... exit_group resumed>) = ? [pid 5515] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5514] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5513] <... symlink resumed>) = 0 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5512] close(24 [pid 5511] +++ exited with 0 +++ [pid 5514] <... symlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] <... symlink resumed>) = 0 [pid 5514] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5513] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5039] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5515] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5514] <... symlink resumed>) = 0 [pid 5513] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(25 [pid 5039] <... openat resumed>) = 3 [pid 5515] <... symlink resumed>) = 0 [pid 5514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5513] close(3 [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5515] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5514] <... openat resumed>) = 3 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] close(26 [pid 5042] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... symlink resumed>) = 0 [pid 5514] write(3, "1000", 4 [pid 5513] close(4 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5514] <... write resumed>) = 4 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] getdents64(3, [pid 5515] <... openat resumed>) = 3 [pid 5514] close(3 [pid 5513] close(5 [pid 5512] close(27 [pid 5042] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5515] write(3, "1000", 4 [pid 5514] <... close resumed>) = 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5039] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... write resumed>) = 4 [pid 5514] read(200, [pid 5513] close(6 [pid 5512] close(28 [pid 5042] fstat(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] close(3 [pid 5514] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5515] <... close resumed>) = 0 [pid 5514] symlink("/dev/binderfs", "./binderfs" [pid 5513] close(7 [pid 5512] close(29 [pid 5039] lstat("./63/binderfs", [pid 5515] read(200, [pid 5514] <... symlink resumed>) = 0 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5515] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5514] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5513] close(8 [pid 5512] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] unlink("./63/binderfs" [pid 5515] symlink("/dev/binderfs", "./binderfs" [pid 5514] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... write resumed>) = 335 [pid 5042] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... symlink resumed>) = 0 [pid 5514] close(3 [pid 5512] exit_group(0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5513] close(9 [pid 5039] <... unlink resumed>) = 0 [pid 5515] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] <... exit_group resumed>) = ? [pid 5042] lstat("./68/binderfs", [pid 5039] umount2("./63/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(4 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] close(3 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(10 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(5 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] close(4 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(11 [pid 5042] unlink("./68/binderfs" [pid 5039] lstat("./63/cgroup.net", [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(6 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5512] +++ exited with 0 +++ [pid 5515] close(5 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(12 [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(7 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./68/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5039] unlink("./63/cgroup.net" [pid 5515] close(6 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(13 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(8 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./68/cgroup.net", [pid 5515] close(7 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(14 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] umount2("./63/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(9 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] close(8 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(15 [pid 5042] unlink("./68/cgroup.net" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(10 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] close(9 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(16 [pid 5042] <... unlink resumed>) = 0 [pid 5039] lstat("./63/cgroup.cpu", [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] close(11 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./68/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5515] close(10 [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(17 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... openat resumed>) = 3 [pid 5039] unlink("./63/cgroup.cpu" [pid 5042] lstat("./68/cgroup.cpu", [pid 5040] fstat(3, [pid 5039] <... unlink resumed>) = 0 [pid 5515] close(11 [pid 5514] close(12 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] umount2("./63/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(18 [pid 5515] close(12 [pid 5514] close(13 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(19 [pid 5042] unlink("./68/cgroup.cpu" [pid 5040] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] close(13 [pid 5514] close(14 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(20 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] lstat("./63/cgroup", [pid 5515] close(14 [pid 5514] close(15 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./68/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(21 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./63/cgroup" [pid 5515] close(15 [pid 5514] close(16 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./68/cgroup", [pid 5040] lstat("./66/binderfs", [pid 5039] <... unlink resumed>) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(22 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] getdents64(3, [pid 5515] close(16 [pid 5514] close(17 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./68/cgroup" [pid 5040] unlink("./66/binderfs" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(23 [pid 5515] close(17 [pid 5514] close(18 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] close(3 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(24 [pid 5515] close(18 [pid 5514] close(19 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(25 [pid 5515] close(19 [pid 5514] close(20 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(26 [pid 5515] close(20 [pid 5514] close(21 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(27 [pid 5042] getdents64(3, [pid 5040] umount2("./66/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... close resumed>) = 0 [pid 5515] close(21 [pid 5514] close(22 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] rmdir("./63" [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(28 [pid 5042] close(3 [pid 5040] lstat("./66/cgroup.net", [pid 5039] <... rmdir resumed>) = 0 [pid 5515] close(22 [pid 5514] close(23 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] mkdir("./64", 0777 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] close(29 [pid 5042] rmdir("./68" [pid 5040] unlink("./66/cgroup.net" [pid 5039] <... mkdir resumed>) = 0 [pid 5515] close(23 [pid 5514] close(24 [pid 5513] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... rmdir resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] mkdir("./69", 0777 [pid 5040] umount2("./66/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] close(24 [pid 5514] close(25 [pid 5513] <... write resumed>) = 335 ./strace-static-x86_64: Process 5516 attached [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] exit_group(0 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5516] set_robust_list(0x555556f426e0, 24 [pid 5515] close(25 [pid 5514] close(26 [pid 5513] <... exit_group resumed>) = ? [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] lstat("./66/cgroup.cpu", [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 66 [pid 5516] <... set_robust_list resumed>) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5513] +++ exited with 0 +++ [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 ./strace-static-x86_64: Process 5517 attached [pid 5516] chdir("./64" [pid 5515] close(26 [pid 5514] close(27 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] unlink("./66/cgroup.cpu" [pid 5517] set_robust_list(0x555556f426e0, 24 [pid 5516] <... chdir resumed>) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 71 [pid 5040] <... unlink resumed>) = 0 [pid 5517] <... set_robust_list resumed>) = 0 [pid 5516] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5515] close(27 [pid 5514] close(28 [pid 5040] umount2("./66/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5517] chdir("./69" [pid 5516] <... prctl resumed>) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5517] <... chdir resumed>) = 0 [pid 5516] setpgid(0, 0 [pid 5515] close(28 [pid 5514] close(29 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./66/cgroup", [pid 5517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5516] <... setpgid resumed>) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5517] <... prctl resumed>) = 0 [pid 5516] symlink("/syzcgroup/unified/syz0", "./cgroup"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5515] close(29 [pid 5514] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] <... openat resumed>) = 3 [pid 5040] unlink("./66/cgroup" [pid 5517] setpgid(0, 0 [pid 5516] <... symlink resumed>) = 0 [pid 5515] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5514] <... write resumed>) = 335 [pid 5043] fstat(3, [pid 5040] <... unlink resumed>) = 0 [pid 5517] <... setpgid resumed>) = 0 [pid 5516] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5515] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5514] exit_group(0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] getdents64(3, [pid 5517] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5516] <... symlink resumed>) = 0 [pid 5515] <... write resumed>) = 335 [pid 5514] <... exit_group resumed>) = ? [pid 5043] getdents64(3, [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5517] <... symlink resumed>) = 0 [pid 5516] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5515] exit_group(0) = ? [pid 5517] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5516] <... symlink resumed>) = 0 [pid 5515] +++ exited with 0 +++ [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] close(3 [pid 5516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5043] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5517] <... symlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... close resumed>) = 0 [pid 5516] <... openat resumed>) = 3 [pid 5517] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5516] write(3, "1000", 4 [pid 5514] +++ exited with 0 +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] lstat("./69/binderfs", [pid 5040] rmdir("./66" [pid 5517] <... symlink resumed>) = 0 [pid 5516] <... write resumed>) = 4 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... rmdir resumed>) = 0 [pid 5517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5516] close(3 [pid 5043] unlink("./69/binderfs" [pid 5040] mkdir("./67", 0777 [pid 5517] <... openat resumed>) = 3 [pid 5516] <... close resumed>) = 0 [pid 5045] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... mkdir resumed>) = 0 [pid 5517] write(3, "1000", 4 [pid 5516] read(200, [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./69/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5517] <... write resumed>) = 4 [pid 5516] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5516] symlink("/dev/binderfs", "./binderfs" [pid 5517] close(3 [pid 5516] <... symlink resumed>) = 0 [pid 5045] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5516] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775./strace-static-x86_64: Process 5518 attached [pid 5517] <... close resumed>) = 0 [pid 5516] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] lstat("./69/cgroup.net", [pid 5518] set_robust_list(0x555556f426e0, 24 [pid 5517] read(200, [pid 5516] close(3 [pid 5045] fstat(3, [pid 5044] <... openat resumed>) = 3 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 69 [pid 5518] <... set_robust_list resumed>) = 0 [pid 5517] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] fstat(3, [pid 5043] unlink("./69/cgroup.net" [pid 5518] chdir("./67" [pid 5517] symlink("/dev/binderfs", "./binderfs" [pid 5516] close(4 [pid 5045] getdents64(3, [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5518] <... chdir resumed>) = 0 [pid 5517] <... symlink resumed>) = 0 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] getdents64(3, [pid 5043] umount2("./69/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5518] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5517] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5045] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5518] <... prctl resumed>) = 0 [pid 5517] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./69/cgroup.cpu", [pid 5518] setpgid(0, 0 [pid 5517] close(3 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./74/binderfs", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5518] <... setpgid resumed>) = 0 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(5 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] lstat("./72/binderfs", [pid 5043] unlink("./69/cgroup.cpu" [pid 5518] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5517] close(4 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./74/binderfs" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5518] <... symlink resumed>) = 0 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(6 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./72/binderfs" [pid 5043] umount2("./69/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5518] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5517] close(5 [pid 5045] umount2("./74/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5518] <... symlink resumed>) = 0 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./72/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./69/cgroup", [pid 5518] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5517] close(6 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./74/cgroup.net", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5518] <... symlink resumed>) = 0 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(7 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] lstat("./72/cgroup.net", [pid 5043] unlink("./69/cgroup" [pid 5518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5517] close(7 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./74/cgroup.net" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5518] <... openat resumed>) = 3 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(8 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./72/cgroup.net" [pid 5043] getdents64(3, [pid 5518] write(3, "1000", 4 [pid 5517] close(8 [pid 5045] umount2("./74/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5518] <... write resumed>) = 4 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./72/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] close(3 [pid 5518] close(3 [pid 5517] close(9 [pid 5045] lstat("./74/cgroup.cpu", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... close resumed>) = 0 [pid 5518] <... close resumed>) = 0 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] lstat("./72/cgroup.cpu", [pid 5043] rmdir("./69" [pid 5518] read(200, [pid 5517] close(10 [pid 5516] close(9 [pid 5045] unlink("./74/cgroup.cpu" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5518] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./72/cgroup.cpu" [pid 5043] mkdir("./70", 0777 [pid 5518] symlink("/dev/binderfs", "./binderfs" [pid 5517] close(11 [pid 5045] umount2("./74/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5518] <... symlink resumed>) = 0 [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./72/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5519 attached [pid 5518] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5517] close(12 [pid 5516] close(10 [pid 5045] lstat("./74/cgroup", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5519] set_robust_list(0x555556f426e0, 24 [pid 5518] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] lstat("./72/cgroup", [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 72 [pid 5519] <... set_robust_list resumed>) = 0 [pid 5518] close(3 [pid 5517] close(13 [pid 5516] close(11 [pid 5045] unlink("./74/cgroup" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5519] chdir("./70" [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./72/cgroup" [pid 5519] <... chdir resumed>) = 0 [pid 5518] close(4 [pid 5517] close(14 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... unlink resumed>) = 0 [pid 5519] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(12 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] getdents64(3, [pid 5519] <... prctl resumed>) = 0 [pid 5518] close(5 [pid 5517] close(15 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5519] setpgid(0, 0 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(13 [pid 5045] <... close resumed>) = 0 [pid 5044] close(3 [pid 5519] <... setpgid resumed>) = 0 [pid 5518] close(6 [pid 5517] close(16 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./74" [pid 5044] <... close resumed>) = 0 [pid 5519] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(14 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] rmdir("./72" [pid 5519] <... symlink resumed>) = 0 [pid 5518] close(7 [pid 5517] close(17 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./75", 0777 [pid 5044] <... rmdir resumed>) = 0 [pid 5519] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(15 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] mkdir("./73", 0777 [pid 5519] <... symlink resumed>) = 0 [pid 5518] close(8 [pid 5517] close(18 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5520 attached [pid 5519] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(16 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5521 attached [pid 5520] set_robust_list(0x555556f426e0, 24 [pid 5519] <... symlink resumed>) = 0 [pid 5518] close(9 [pid 5517] close(19 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 77 [pid 5521] set_robust_list(0x555556f426e0, 24 [pid 5520] <... set_robust_list resumed>) = 0 [pid 5519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(17 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 75 [pid 5521] <... set_robust_list resumed>) = 0 [pid 5520] chdir("./75" [pid 5519] <... openat resumed>) = 3 [pid 5518] close(10 [pid 5517] close(20 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] chdir("./73" [pid 5520] <... chdir resumed>) = 0 [pid 5519] write(3, "1000", 4 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(18 [pid 5521] <... chdir resumed>) = 0 [pid 5520] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5519] <... write resumed>) = 4 [pid 5518] close(11 [pid 5517] close(21 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5520] <... prctl resumed>) = 0 [pid 5519] close(3 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(19 [pid 5521] <... prctl resumed>) = 0 [pid 5520] setpgid(0, 0 [pid 5519] <... close resumed>) = 0 [pid 5518] close(12 [pid 5517] close(22 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] setpgid(0, 0 [pid 5520] <... setpgid resumed>) = 0 [pid 5519] read(200, [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(20 [pid 5521] <... setpgid resumed>) = 0 [pid 5520] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5519] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5518] close(13 [pid 5517] close(23 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... symlink resumed>) = 0 [pid 5519] symlink("/dev/binderfs", "./binderfs" [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(21 [pid 5521] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5520] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5519] <... symlink resumed>) = 0 [pid 5518] close(14 [pid 5517] close(24 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... symlink resumed>) = 0 [pid 5520] <... symlink resumed>) = 0 [pid 5519] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(22 [pid 5521] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5520] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5519] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(15 [pid 5517] close(25 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... symlink resumed>) = 0 [pid 5516] close(23 [pid 5521] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... symlink resumed>) = 0 [pid 5520] <... symlink resumed>) = 0 [pid 5519] close(3 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(24 [pid 5521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(16 [pid 5517] close(26 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... openat resumed>) = 3 [pid 5520] <... openat resumed>) = 3 [pid 5519] close(4 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(25 [pid 5521] write(3, "1000", 4 [pid 5520] write(3, "1000", 4 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(17 [pid 5517] close(27 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... write resumed>) = 4 [pid 5520] <... write resumed>) = 4 [pid 5519] close(5 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(26 [pid 5521] close(3 [pid 5520] close(3 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(18 [pid 5517] close(28 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... close resumed>) = 0 [pid 5520] <... close resumed>) = 0 [pid 5519] close(6 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] close(27 [pid 5521] read(200, [pid 5520] read(200, [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(19 [pid 5517] close(29 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5516] close(28 [pid 5521] symlink("/dev/binderfs", "./binderfs" [pid 5520] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5519] close(7 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... symlink resumed>) = 0 [pid 5520] symlink("/dev/binderfs", "./binderfs" [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(20 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5517] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5516] close(29 [pid 5521] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5520] <... symlink resumed>) = 0 [pid 5519] close(8 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... write resumed>) = 335 [pid 5516] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5521] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5520] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(21 [pid 5517] exit_group(0 [pid 5516] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5521] close(3 [pid 5520] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] close(9 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5517] <... exit_group resumed>) = ? [pid 5516] <... write resumed>) = 335 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(3 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(22 [pid 5516] exit_group(0 [pid 5521] close(4 [pid 5519] close(10 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5516] <... exit_group resumed>) = ? [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(23 [pid 5517] +++ exited with 0 +++ [pid 5516] +++ exited with 0 +++ [pid 5521] close(5 [pid 5520] close(4 [pid 5519] close(11 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(24 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5521] close(6 [pid 5520] close(5 [pid 5519] close(12 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... restart_syscall resumed>) = 0 [pid 5039] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(25 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] close(7 [pid 5520] close(6 [pid 5519] close(13 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(26 [pid 5042] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5521] close(8 [pid 5520] close(7 [pid 5519] close(14 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(27 [pid 5042] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5521] close(9 [pid 5520] close(8 [pid 5519] close(15 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5039] getdents64(3, [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(28 [pid 5042] fstat(3, [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5521] close(10 [pid 5520] close(9 [pid 5519] close(16 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] close(29 [pid 5042] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] close(11 [pid 5520] close(10 [pid 5519] close(17 [pid 5518] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] lstat("./64/binderfs", [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5521] close(12 [pid 5519] close(18 [pid 5518] <... write resumed>) = 335 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./64/binderfs" [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(11 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] exit_group(0 [pid 5042] lstat("./69/binderfs", [pid 5039] <... unlink resumed>) = 0 [pid 5521] close(13 [pid 5519] close(19 [pid 5518] <... exit_group resumed>) = ? [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] umount2("./64/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5518] +++ exited with 0 +++ [pid 5042] unlink("./69/binderfs" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] close(14 [pid 5519] close(20 [pid 5042] <... unlink resumed>) = 0 [pid 5039] lstat("./64/cgroup.net", [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(12 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./69/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5521] close(15 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] close(21 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./64/cgroup.net" [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(13 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5521] close(16 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] close(22 [pid 5042] lstat("./69/cgroup.net", [pid 5040] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(14 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] umount2("./64/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] close(17 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] close(23 [pid 5042] unlink("./69/cgroup.net" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(15 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5521] close(18 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] close(24 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5039] lstat("./64/cgroup.cpu", [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(16 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./69/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] fstat(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5521] close(19 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] close(25 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./64/cgroup.cpu" [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(17 [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5521] close(20 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./69/cgroup.cpu", [pid 5040] getdents64(3, [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(18 [pid 5519] close(26 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... unlink resumed>) = 0 [pid 5521] close(21 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(19 [pid 5519] close(27 [pid 5042] unlink("./69/cgroup.cpu" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./64/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] close(22 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./67/binderfs", [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(20 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5519] close(28 [pid 5042] umount2("./69/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] close(23 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./67/binderfs" [pid 5039] lstat("./64/cgroup", write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(21 [pid 5519] close(29 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./67/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] close(24 [pid 5520] close(22 [pid 5519] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] lstat("./69/cgroup", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... write resumed>) = 335 [pid 5040] lstat("./67/cgroup.net", [pid 5520] close(23 [pid 5519] exit_group(0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5519] <... exit_group resumed>) = ? [pid 5040] unlink("./67/cgroup.net" [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(24 [pid 5519] +++ exited with 0 +++ [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] unlink("./64/cgroup" [pid 5521] close(25 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./67/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(25 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] close(26 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./69/cgroup" [pid 5039] <... unlink resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] close(26 [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./67/cgroup.cpu", [pid 5039] getdents64(3, [pid 5521] close(27 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] getdents64(3, [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] close(3 [pid 5521] close(28 [pid 5520] close(27 [pid 5043] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] close(3 [pid 5040] unlink("./67/cgroup.cpu" [pid 5039] <... close resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... openat resumed>) = 3 [pid 5042] <... close resumed>) = 0 [pid 5039] rmdir("./64" [pid 5521] close(29 [pid 5520] close(28 [pid 5043] fstat(3, write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5042] rmdir("./69" [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... rmdir resumed>) = 0 [pid 5521] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] <... rmdir resumed>) = 0 [pid 5039] mkdir("./65", 0777 [pid 5521] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5520] close(29 [pid 5043] getdents64(3, [pid 5042] mkdir("./70", 0777write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] umount2("./67/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... mkdir resumed>) = 0 [pid 5521] <... write resumed>) = 335 [pid 5520] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] <... mkdir resumed>) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5522 attached [pid 5521] exit_group(0 [pid 5520] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] set_robust_list(0x555556f426e0, 24 [pid 5521] <... exit_group resumed>) = ? [pid 5520] <... write resumed>) = 335 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5523 attached [pid 5522] <... set_robust_list resumed>) = 0 [pid 5521] +++ exited with 0 +++ [pid 5520] exit_group(0 [pid 5043] lstat("./70/binderfs", [pid 5040] lstat("./67/cgroup", [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 67 [pid 5523] set_robust_list(0x555556f426e0, 24 [pid 5522] chdir("./65" [pid 5520] <... exit_group resumed>) = ? [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 72 [pid 5523] <... set_robust_list resumed>) = 0 [pid 5522] <... chdir resumed>) = 0 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] unlink("./70/binderfs" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5043] <... unlink resumed>) = 0 [pid 5040] unlink("./67/cgroup" [pid 5523] chdir("./70" [pid 5522] <... prctl resumed>) = 0 [pid 5043] umount2("./70/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5522] setpgid(0, 0 [pid 5044] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5522] <... setpgid resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./70/cgroup.net", [pid 5040] getdents64(3, [pid 5523] <... chdir resumed>) = 0 [pid 5522] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5044] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5523] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5522] <... symlink resumed>) = 0 [pid 5520] +++ exited with 0 +++ [pid 5044] <... openat resumed>) = 3 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5523] <... prctl resumed>) = 0 [pid 5040] close(3 [pid 5523] setpgid(0, 0 [pid 5040] <... close resumed>) = 0 [pid 5523] <... setpgid resumed>) = 0 [pid 5040] rmdir("./67" [pid 5523] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5040] <... rmdir resumed>) = 0 [pid 5523] <... symlink resumed>) = 0 [pid 5040] mkdir("./68", 0777 [pid 5523] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5040] <... mkdir resumed>) = 0 [pid 5523] <... symlink resumed>) = 0 [pid 5522] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5044] fstat(3, [pid 5043] unlink("./70/cgroup.net" [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5524 attached [pid 5523] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5522] <... symlink resumed>) = 0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5524] set_robust_list(0x555556f426e0, 24 [pid 5523] <... symlink resumed>) = 0 [pid 5522] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5044] getdents64(3, [pid 5043] umount2("./70/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5524] <... set_robust_list resumed>) = 0 [pid 5523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5522] <... symlink resumed>) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 70 [pid 5524] chdir("./68" [pid 5523] <... openat resumed>) = 3 [pid 5522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] lstat("./70/cgroup.cpu", [pid 5524] <... chdir resumed>) = 0 [pid 5523] write(3, "1000", 4 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5524] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5523] <... write resumed>) = 4 [pid 5522] <... openat resumed>) = 3 [pid 5044] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./70/cgroup.cpu" [pid 5524] <... prctl resumed>) = 0 [pid 5523] close(3 [pid 5522] write(3, "1000", 4 [pid 5045] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5524] setpgid(0, 0 [pid 5523] <... close resumed>) = 0 [pid 5522] <... write resumed>) = 4 [pid 5043] umount2("./70/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5524] <... setpgid resumed>) = 0 [pid 5523] read(200, [pid 5522] close(3 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./73/binderfs", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5524] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5523] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5522] <... close resumed>) = 0 [pid 5045] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] lstat("./70/cgroup", [pid 5524] <... symlink resumed>) = 0 [pid 5523] symlink("/dev/binderfs", "./binderfs" [pid 5522] read(200, [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5524] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5523] <... symlink resumed>) = 0 [pid 5043] unlink("./70/cgroup" [pid 5524] <... symlink resumed>) = 0 [pid 5523] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5522] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5045] <... openat resumed>) = 3 [pid 5044] unlink("./73/binderfs" [pid 5043] <... unlink resumed>) = 0 [pid 5524] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5523] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] symlink("/dev/binderfs", "./binderfs" [pid 5044] <... unlink resumed>) = 0 [pid 5043] getdents64(3, [pid 5524] <... symlink resumed>) = 0 [pid 5523] close(3 [pid 5045] fstat(3, [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... symlink resumed>) = 0 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] umount2("./73/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] close(3 [pid 5524] <... openat resumed>) = 3 [pid 5523] close(4 [pid 5522] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... close resumed>) = 0 [pid 5524] write(3, "1000", 4 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] lstat("./73/cgroup.net", [pid 5043] rmdir("./70" [pid 5524] <... write resumed>) = 4 [pid 5523] close(5 [pid 5522] close(3 [pid 5045] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5524] close(3 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] mkdir("./71", 0777 [pid 5524] <... close resumed>) = 0 [pid 5523] close(6 [pid 5043] <... mkdir resumed>) = 0 [pid 5524] read(200, [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5525 attached [pid 5524] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5523] close(7 [pid 5522] close(4 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./73/cgroup.net" [pid 5525] set_robust_list(0x555556f426e0, 24 [pid 5524] symlink("/dev/binderfs", "./binderfs" [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 73 [pid 5045] lstat("./75/binderfs", [pid 5525] <... set_robust_list resumed>) = 0 [pid 5524] <... symlink resumed>) = 0 [pid 5523] close(8 [pid 5522] close(5 [pid 5044] <... unlink resumed>) = 0 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5525] chdir("./71" [pid 5524] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./75/binderfs" [pid 5044] umount2("./73/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5525] <... chdir resumed>) = 0 [pid 5524] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(9 [pid 5522] close(6 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5525] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5524] close(3 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... prctl resumed>) = 0 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(10 [pid 5522] close(7 [pid 5045] umount2("./75/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./73/cgroup.cpu", [pid 5525] setpgid(0, 0 [pid 5524] close(4 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5525] <... setpgid resumed>) = 0 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(11 [pid 5522] close(8 [pid 5045] lstat("./75/cgroup.net", [pid 5044] unlink("./73/cgroup.cpu" [pid 5525] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5524] close(5 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... symlink resumed>) = 0 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(12 [pid 5522] close(9 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5525] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5524] close(6 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./75/cgroup.net" [pid 5044] umount2("./73/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5525] <... symlink resumed>) = 0 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(13 [pid 5522] close(10 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5525] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5524] close(7 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... symlink resumed>) = 0 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(14 [pid 5522] close(11 [pid 5045] umount2("./75/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./73/cgroup", [pid 5525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5524] close(8 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... openat resumed>) = 3 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(15 [pid 5522] close(12 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5525] write(3, "1000", 4 [pid 5524] close(9 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./75/cgroup.cpu", [pid 5044] unlink("./73/cgroup" [pid 5525] <... write resumed>) = 4 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(16 [pid 5522] close(13 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5525] close(3 [pid 5524] close(10 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./75/cgroup.cpu" [pid 5044] getdents64(3, [pid 5525] <... close resumed>) = 0 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(17 [pid 5522] close(14 [pid 5525] read(200, [pid 5524] close(11 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5525] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(18 [pid 5522] close(15 [pid 5045] umount2("./75/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] close(3 [pid 5525] symlink("/dev/binderfs", "./binderfs" [pid 5524] close(12 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... close resumed>) = 0 [pid 5525] <... symlink resumed>) = 0 [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(19 [pid 5522] close(16 [pid 5045] lstat("./75/cgroup", [pid 5044] rmdir("./73" [pid 5525] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5524] close(13 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(20 [pid 5522] close(17 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5525] close(3 [pid 5524] close(14 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(21 [pid 5522] close(18 [pid 5525] close(4 [pid 5524] close(15 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./75/cgroup" [pid 5044] mkdir("./74", 0777 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(22 [pid 5522] close(19 [pid 5525] close(5 [pid 5524] close(16 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(23 [pid 5522] close(20 [pid 5525] close(6 [pid 5524] close(17 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(24 [pid 5522] close(21 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5525] close(7 [pid 5524] close(18 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(25 [pid 5522] close(22./strace-static-x86_64: Process 5526 attached [pid 5525] close(8 [pid 5524] close(19 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5526] set_robust_list(0x555556f426e0, 24 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(26 [pid 5522] close(23 [pid 5045] <... close resumed>) = 0 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 76 [pid 5526] <... set_robust_list resumed>) = 0 [pid 5525] close(9 [pid 5524] close(20 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./75" [pid 5526] chdir("./74" [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(27 [pid 5522] close(24 [pid 5526] <... chdir resumed>) = 0 [pid 5525] close(10 [pid 5524] close(21 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5526] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(28 [pid 5522] close(25 [pid 5045] mkdir("./76", 0777 [pid 5526] <... prctl resumed>) = 0 [pid 5525] close(11 [pid 5524] close(22 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 [pid 5526] setpgid(0, 0 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] close(29 [pid 5522] close(26 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5526] <... setpgid resumed>) = 0 [pid 5525] close(12 [pid 5524] close(23 [pid 5523] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5522] close(27 [pid 5526] <... symlink resumed>) = 0 [pid 5525] close(13 [pid 5524] close(24 [pid 5523] <... write resumed>) = 335 [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] exit_group(0 [pid 5522] close(28./strace-static-x86_64: Process 5527 attached [pid 5526] <... symlink resumed>) = 0 [pid 5525] close(14 [pid 5524] close(25 [pid 5523] <... exit_group resumed>) = ? [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] set_robust_list(0x555556f426e0, 24 [pid 5526] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 78 [pid 5526] <... symlink resumed>) = 0 [pid 5525] close(15 [pid 5524] close(26 [pid 5522] close(29 [pid 5527] <... set_robust_list resumed>) = 0 [pid 5526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] chdir("./76" [pid 5525] close(16 [pid 5524] close(27 [pid 5522] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5527] <... chdir resumed>) = 0 [pid 5526] <... openat resumed>) = 3 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5523] +++ exited with 0 +++ [pid 5522] <... write resumed>) = 335 [pid 5527] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5526] write(3, "1000", 4 [pid 5525] close(17 [pid 5524] close(28 [pid 5522] exit_group(0 [pid 5527] <... prctl resumed>) = 0 [pid 5526] <... write resumed>) = 4 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5522] <... exit_group resumed>) = ? [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5527] setpgid(0, 0 [pid 5526] close(3 [pid 5525] close(18 [pid 5524] close(29 [pid 5527] <... setpgid resumed>) = 0 [pid 5526] <... close resumed>) = 0 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5527] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5526] read(200, [pid 5525] close(19 [pid 5524] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5527] <... symlink resumed>) = 0 [pid 5526] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5524] <... write resumed>) = 335 [pid 5526] symlink("/dev/binderfs", "./binderfs" [pid 5522] +++ exited with 0 +++ [pid 5526] <... symlink resumed>) = 0 [pid 5525] close(20) = -1 EBADF (Bad file descriptor) [pid 5524] exit_group(0 [pid 5527] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5526] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5525] close(21 [pid 5524] <... exit_group resumed>) = ? [pid 5042] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5527] <... symlink resumed>) = 0 [pid 5527] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5526] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] <... symlink resumed>) = 0 [pid 5526] close(3 [pid 5525] close(22 [pid 5524] +++ exited with 0 +++ [pid 5042] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5527] <... openat resumed>) = 3 [pid 5526] close(4 [pid 5525] close(23 [pid 5042] fstat(3, [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5527] write(3, "1000", 4 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5039] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5527] <... write resumed>) = 4 [pid 5526] close(5 [pid 5525] close(24 [pid 5042] getdents64(3, [pid 5040] <... restart_syscall resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] close(3 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5527] <... close resumed>) = 0 [pid 5526] close(6 [pid 5525] close(25 [pid 5042] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5527] read(200, [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] fstat(3, [pid 5527] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5526] close(7 [pid 5525] close(26 [pid 5042] lstat("./70/binderfs", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5527] symlink("/dev/binderfs", "./binderfs" [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] getdents64(3, [pid 5527] <... symlink resumed>) = 0 [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] close(27 [pid 5042] unlink("./70/binderfs" [pid 5040] <... openat resumed>) = 3 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5527] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5526] close(8 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] fstat(3, [pid 5039] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5527] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] close(28 [pid 5042] umount2("./70/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] close(3 [pid 5526] close(9 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] getdents64(3, [pid 5039] lstat("./65/binderfs", [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] close(29 [pid 5042] lstat("./70/cgroup.net", write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5527] close(4 [pid 5526] close(10 [pid 5525] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./65/binderfs" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] unlink("./70/cgroup.net" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5527] close(5 [pid 5526] close(11 [pid 5525] <... write resumed>) = 335 [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./68/binderfs", [pid 5039] umount2("./65/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] exit_group(0 [pid 5042] umount2("./70/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] close(6 [pid 5526] close(12 [pid 5525] <... exit_group resumed>) = ? [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./68/binderfs" [pid 5039] lstat("./65/cgroup.net", [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5525] +++ exited with 0 +++ [pid 5042] lstat("./70/cgroup.cpu", [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5527] close(7 [pid 5526] close(13 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./68/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./65/cgroup.net" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5042] unlink("./70/cgroup.cpu" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5527] close(8 [pid 5526] close(14 [pid 5043] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./68/cgroup.net", [pid 5039] umount2("./65/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./70/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] close(9 [pid 5043] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5526] close(15 [pid 5040] unlink("./68/cgroup.net" [pid 5039] lstat("./65/cgroup.cpu", [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... openat resumed>) = 3 [pid 5042] lstat("./70/cgroup", [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5527] close(10 [pid 5526] close(16 [pid 5043] fstat(3, [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] umount2("./68/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./65/cgroup.cpu" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] unlink("./70/cgroup" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5527] close(11 [pid 5526] close(17 [pid 5043] getdents64(3, [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./68/cgroup.cpu", [pid 5039] umount2("./65/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] getdents64(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5527] close(12 [pid 5526] close(18 [pid 5043] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] unlink("./68/cgroup.cpu" [pid 5039] lstat("./65/cgroup", [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] close(3 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5527] close(13 [pid 5526] close(19 [pid 5043] lstat("./71/binderfs", [pid 5042] <... close resumed>) = 0 [pid 5040] umount2("./68/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./65/cgroup" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] rmdir("./70" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5527] close(14 [pid 5043] unlink("./71/binderfs" [pid 5042] <... rmdir resumed>) = 0 [pid 5040] lstat("./68/cgroup", [pid 5039] getdents64(3, [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5042] mkdir("./71", 0777 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5527] close(15 [pid 5526] close(20 [pid 5043] umount2("./71/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... mkdir resumed>) = 0 [pid 5040] unlink("./68/cgroup" [pid 5039] close(3 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... close resumed>) = 0 ./strace-static-x86_64: Process 5528 attached [pid 5527] close(16 [pid 5526] close(21 [pid 5043] lstat("./71/cgroup.net", [pid 5040] getdents64(3, [pid 5039] rmdir("./65" [pid 5528] set_robust_list(0x555556f426e0, 24 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 73 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... rmdir resumed>) = 0 [pid 5528] <... set_robust_list resumed>) = 0 [pid 5527] close(17 [pid 5526] close(22 [pid 5043] unlink("./71/cgroup.net" [pid 5040] close(3 [pid 5039] mkdir("./66", 0777 [pid 5528] chdir("./71" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... close resumed>) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5528] <... chdir resumed>) = 0 [pid 5527] close(18 [pid 5526] close(23 [pid 5043] umount2("./71/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] rmdir("./68" [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... rmdir resumed>) = 0 [pid 5528] <... prctl resumed>) = 0 [pid 5527] close(19 [pid 5526] close(24 [pid 5043] lstat("./71/cgroup.cpu", [pid 5040] mkdir("./69", 0777./strace-static-x86_64: Process 5529 attached [pid 5528] setpgid(0, 0 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... mkdir resumed>) = 0 [pid 5529] set_robust_list(0x555556f426e0, 24 [pid 5528] <... setpgid resumed>) = 0 [pid 5527] close(20 [pid 5526] close(25 [pid 5043] unlink("./71/cgroup.cpu" [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5530 attached [pid 5529] <... set_robust_list resumed>) = 0 [pid 5528] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 68 [pid 5530] set_robust_list(0x555556f426e0, 24 [pid 5529] chdir("./66" [pid 5528] <... symlink resumed>) = 0 [pid 5527] close(21 [pid 5526] close(26 [pid 5043] umount2("./71/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 71 [pid 5530] <... set_robust_list resumed>) = 0 [pid 5529] <... chdir resumed>) = 0 [pid 5528] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5530] chdir("./69" [pid 5529] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5528] <... symlink resumed>) = 0 [pid 5527] close(22 [pid 5526] close(27 [pid 5043] lstat("./71/cgroup", [pid 5530] <... chdir resumed>) = 0 [pid 5529] <... prctl resumed>) = 0 [pid 5528] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5530] <... prctl resumed>) = 0 [pid 5529] setpgid(0, 0 [pid 5528] <... symlink resumed>) = 0 [pid 5527] close(23 [pid 5526] close(28 [pid 5530] setpgid(0, 0 [pid 5529] <... setpgid resumed>) = 0 [pid 5528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5043] unlink("./71/cgroup" [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] <... setpgid resumed>) = 0 [pid 5529] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5528] <... openat resumed>) = 3 [pid 5526] close(29 [pid 5043] <... unlink resumed>) = 0 [pid 5530] <... symlink resumed>) = 0 [pid 5529] <... symlink resumed>) = 0 [pid 5527] close(24 [pid 5530] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5529] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5528] write(3, "1000", 4 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5530] <... symlink resumed>) = 0 [pid 5529] <... symlink resumed>) = 0 [pid 5528] <... write resumed>) = 4 [pid 5527] close(25 [pid 5530] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5529] symlink("/syzcgroup/net/syz0", "./cgroup.net"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5528] close(3 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5530] <... symlink resumed>) = 0 [pid 5529] <... symlink resumed>) = 0 [pid 5528] <... close resumed>) = 0 [pid 5527] close(26 [pid 5526] <... write resumed>) = 335 [pid 5530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5528] read(200, [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] exit_group(0 [pid 5043] close(3 [pid 5530] <... openat resumed>) = 3 [pid 5530] write(3, "1000", 4) = 4 [pid 5530] close(3) = 0 [pid 5530] read(200, [pid 5529] <... openat resumed>) = 3 [pid 5530] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5528] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5527] close(27 [pid 5526] <... exit_group resumed>) = ? [pid 5043] <... close resumed>) = 0 [pid 5529] write(3, "1000", 4 [pid 5530] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5530] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] rmdir("./71" [pid 5530] close(3 [pid 5528] symlink("/dev/binderfs", "./binderfs" [pid 5527] close(28 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... write resumed>) = 4 [pid 5528] <... symlink resumed>) = 0 [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5526] +++ exited with 0 +++ [pid 5043] <... rmdir resumed>) = 0 [pid 5530] close(4 [pid 5529] close(3 [pid 5528] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5527] close(29 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] mkdir("./72", 0777 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = 0 [pid 5528] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... mkdir resumed>) = 0 [pid 5530] close(5 [pid 5529] read(200, [pid 5528] close(3write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5527] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] <... write resumed>) = 335 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5530] close(6 [pid 5528] close(4 [pid 5527] exit_group(0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] symlink("/dev/binderfs", "./binderfs" [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5527] <... exit_group resumed>) = ? [pid 5044] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5531 attached [pid 5530] close(7 [pid 5529] <... symlink resumed>) = 0 [pid 5528] close(5 [pid 5527] +++ exited with 0 +++ [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5531] set_robust_list(0x555556f426e0, 24 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 74 [pid 5531] <... set_robust_list resumed>) = 0 [pid 5530] close(8 [pid 5529] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(6 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5044] <... openat resumed>) = 3 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] chdir("./72" [pid 5530] close(9 [pid 5529] close(3 [pid 5528] close(7 [pid 5044] fstat(3, [pid 5531] <... chdir resumed>) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5531] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5530] close(10 [pid 5529] close(4 [pid 5528] close(8 [pid 5044] getdents64(3, [pid 5531] <... prctl resumed>) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5530] close(11 [pid 5528] close(9 [pid 5045] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5531] setpgid(0, 0 [pid 5530] close(12 [pid 5529] close(5 [pid 5528] close(10 [pid 5045] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] <... setpgid resumed>) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5531] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5530] close(13 [pid 5529] close(6 [pid 5528] close(11 [pid 5045] fstat(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5531] <... symlink resumed>) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] lstat("./74/binderfs", [pid 5531] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5530] close(14 [pid 5529] close(7 [pid 5528] close(12 [pid 5045] getdents64(3, [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5531] <... symlink resumed>) = 0 [pid 5530] close(15 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(13 [pid 5045] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5530] close(16 [pid 5528] close(14 [pid 5045] lstat("./76/binderfs", [pid 5531] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(8 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] unlink("./74/binderfs" [pid 5530] close(17 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(15 [pid 5045] unlink("./76/binderfs" [pid 5531] <... symlink resumed>) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(9 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5530] close(18 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(16 [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./74/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] <... openat resumed>) = 3 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(10 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./76/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5531] write(3, "1000", 4 [pid 5530] close(19 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(17 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./74/cgroup.net", [pid 5531] <... write resumed>) = 4 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(11 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./76/cgroup.net", [pid 5530] close(20 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(18 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5531] close(3 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(12 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./76/cgroup.net" [pid 5531] <... close resumed>) = 0 [pid 5530] close(21 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(19 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./74/cgroup.net" [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./76/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] read(200, [pid 5530] close(22 [pid 5529] close(13 [pid 5528] close(20 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5531] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./76/cgroup.cpu", [pid 5531] symlink("/dev/binderfs", "./binderfs" [pid 5530] close(23 [pid 5529] close(14 [pid 5528] close(21 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./74/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] <... symlink resumed>) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./76/cgroup.cpu" [pid 5531] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5530] close(24 [pid 5529] close(15 [pid 5528] close(22 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5531] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./76/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] close(3 [pid 5530] close(25 [pid 5529] close(16 [pid 5528] close(23 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./74/cgroup.cpu", [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./76/cgroup", [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(26 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(24 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5531] close(4 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(17 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./76/cgroup" [pid 5044] unlink("./74/cgroup.cpu" [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(27 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(25 [pid 5045] <... unlink resumed>) = 0 [pid 5531] close(5 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(18 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... unlink resumed>) = 0 [pid 5530] close(28 [pid 5528] close(26 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] close(29 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(27 [pid 5045] <... close resumed>) = 0 [pid 5044] umount2("./74/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] close(6 [pid 5530] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(19 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./76"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(28 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] lstat("./74/cgroup", [pid 5531] close(7 [pid 5530] <... write resumed>) = 335 [pid 5529] close(20 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./77", 0777 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] exit_group(0 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] close(29 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] unlink("./74/cgroup" [pid 5531] close(8 [pid 5530] <... exit_group resumed>) = ? [pid 5529] close(21 [pid 5528] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] <... unlink resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5530] +++ exited with 0 +++ [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] getdents64(3, ./strace-static-x86_64: Process 5532 attached [pid 5531] close(9 [pid 5529] close(22 [pid 5528] <... write resumed>) = 335 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 79 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5532] set_robust_list(0x555556f426e0, 24 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5528] exit_group(0 [pid 5044] close(3 [pid 5532] <... set_robust_list resumed>) = 0 [pid 5528] <... exit_group resumed>) = ? [pid 5044] <... close resumed>) = 0 [pid 5532] chdir("./77" [pid 5531] close(10 [pid 5529] close(23 [pid 5528] +++ exited with 0 +++ [pid 5044] rmdir("./74" [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5532] <... chdir resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... rmdir resumed>) = 0 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5532] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5531] close(11 [pid 5044] mkdir("./75", 0777 [pid 5040] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5532] <... prctl resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... mkdir resumed>) = 0 [pid 5532] setpgid(0, 0 [pid 5531] close(12 [pid 5529] close(24 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5533 attached [pid 5532] <... setpgid resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5531] close(13 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 77 [pid 5532] <... symlink resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(25 [pid 5042] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5533] set_robust_list(0x555556f426e0, 24 [pid 5532] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5531] close(14 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... openat resumed>) = 3 [pid 5533] <... set_robust_list resumed>) = 0 [pid 5532] <... symlink resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(26 [pid 5042] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] fstat(3, [pid 5533] chdir("./75" [pid 5532] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5531] close(15 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5533] <... chdir resumed>) = 0 [pid 5532] <... symlink resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(27 [pid 5042] fstat(3, [pid 5040] getdents64(3, [pid 5533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5531] close(16 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5533] <... prctl resumed>) = 0 [pid 5532] <... openat resumed>) = 3 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(28 [pid 5042] getdents64(3, [pid 5040] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5533] setpgid(0, 0 [pid 5532] write(3, "1000", 4 [pid 5531] close(17 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5533] <... setpgid resumed>) = 0 [pid 5532] <... write resumed>) = 4 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] close(29 [pid 5042] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./69/binderfs", [pid 5533] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5532] close(3 [pid 5531] close(18 [pid 5529] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5533] <... symlink resumed>) = 0 [pid 5532] <... close resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] lstat("./71/binderfs", [pid 5040] unlink("./69/binderfs" [pid 5533] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5532] read(200, [pid 5531] close(19write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5529] <... write resumed>) = 335 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5533] <... symlink resumed>) = 0 [pid 5532] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] exit_group(0 [pid 5042] unlink("./71/binderfs" [pid 5040] umount2("./69/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5533] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5532] symlink("/dev/binderfs", "./binderfs" [pid 5531] close(20 [pid 5529] <... exit_group resumed>) = ? [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5533] <... symlink resumed>) = 0 [pid 5532] <... symlink resumed>) = 0 [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5529] +++ exited with 0 +++ [pid 5042] umount2("./71/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./69/cgroup.net", [pid 5532] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5531] close(21 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5532] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./71/cgroup.net", [pid 5040] unlink("./69/cgroup.net" [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5532] close(3 [pid 5531] close(22 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5533] <... openat resumed>) = 3 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./71/cgroup.net" [pid 5040] umount2("./69/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... restart_syscall resumed>) = 0 [pid 5533] write(3, "1000", 4 [pid 5532] close(4 [pid 5531] close(23 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5533] <... write resumed>) = 4 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./71/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./69/cgroup.cpu", [pid 5533] close(3 [pid 5532] close(5 [pid 5531] close(24 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5533] <... close resumed>) = 0 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./71/cgroup.cpu", [pid 5040] unlink("./69/cgroup.cpu" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5533] read(200, [pid 5532] close(6 [pid 5531] close(25 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5533] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./71/cgroup.cpu" [pid 5040] umount2("./69/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5533] symlink("/dev/binderfs", "./binderfs" [pid 5532] close(7 [pid 5531] close(26 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5533] <... symlink resumed>) = 0 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./71/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./69/cgroup", [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5533] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5532] close(8 [pid 5531] close(27 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] getdents64(3, [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./71/cgroup", [pid 5040] unlink("./69/cgroup" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5533] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(9 [pid 5531] close(28 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5533] close(3 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./71/cgroup" [pid 5040] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(10 [pid 5531] close(29 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] lstat("./66/binderfs", [pid 5533] close(4 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] close(3 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5532] close(11 [pid 5531] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... close resumed>) = 0 [pid 5039] unlink("./66/binderfs" [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... write resumed>) = 335 [pid 5042] close(3 [pid 5040] rmdir("./69" [pid 5039] <... unlink resumed>) = 0 [pid 5533] close(5 [pid 5532] close(12 [pid 5531] exit_group(0 [pid 5042] <... close resumed>) = 0 [pid 5040] <... rmdir resumed>) = 0 [pid 5039] umount2("./66/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5531] <... exit_group resumed>) = ? [pid 5042] rmdir("./71" [pid 5040] mkdir("./70", 0777 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5533] close(6 [pid 5532] close(13 [pid 5531] +++ exited with 0 +++ [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... mkdir resumed>) = 0 [pid 5039] lstat("./66/cgroup.net", [pid 5533] close(7) = -1 EBADF (Bad file descriptor) [pid 5533] close(8) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... rmdir resumed>) = 0 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5533] close(9 [pid 5532] close(14 [pid 5042] mkdir("./72", 0777 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./66/cgroup.net" [pid 5533] close(10./strace-static-x86_64: Process 5534 attached ) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5042] <... mkdir resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5534] set_robust_list(0x555556f426e0, 24 [pid 5533] close(11 [pid 5532] close(15 [pid 5043] restart_syscall(<... resuming interrupted clone ...> [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 72 [pid 5039] umount2("./66/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5534] <... set_robust_list resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] chdir("./70" [pid 5533] close(12 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5534] <... chdir resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5533] close(13 [pid 5039] lstat("./66/cgroup.cpu", [pid 5532] close(16 [pid 5534] <... prctl resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] setpgid(0, 0 [pid 5533] close(14 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... setpgid resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(17 [pid 5043] <... restart_syscall resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 ./strace-static-x86_64: Process 5535 attached [pid 5534] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5533] close(15 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] set_robust_list(0x555556f426e0, 24 [pid 5534] <... symlink resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] <... set_robust_list resumed>) = 0 [pid 5534] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5533] close(16 [pid 5535] chdir("./72" [pid 5534] <... symlink resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(18 [pid 5039] unlink("./66/cgroup.cpu" [pid 5535] <... chdir resumed>) = 0 [pid 5534] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5533] close(17 [pid 5535] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5534] <... symlink resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 74 [pid 5039] <... unlink resumed>) = 0 [pid 5535] <... prctl resumed>) = 0 [pid 5534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5533] close(18 [pid 5535] setpgid(0, 0 [pid 5534] <... openat resumed>) = 3 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(19 [pid 5043] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./66/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5535] <... setpgid resumed>) = 0 [pid 5534] write(3, "1000", 4 [pid 5533] close(19 [pid 5535] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5534] <... write resumed>) = 4 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5535] <... symlink resumed>) = 0 [pid 5534] close(3 [pid 5533] close(20 [pid 5535] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5534] <... close resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] <... symlink resumed>) = 0 [pid 5534] read(200, [pid 5533] close(21 [pid 5532] close(20 [pid 5043] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] lstat("./66/cgroup", [pid 5535] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5534] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] <... symlink resumed>) = 0 [pid 5534] symlink("/dev/binderfs", "./binderfs" [pid 5533] close(22 [pid 5043] <... openat resumed>) = 3 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5532] close(21 [pid 5535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5534] <... symlink resumed>) = 0 [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, [pid 5039] unlink("./66/cgroup" [pid 5535] <... openat resumed>) = 3 [pid 5534] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5533] close(23 [pid 5535] write(3, "1000", 4 [pid 5534] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(22 [pid 5535] <... write resumed>) = 4 [pid 5534] close(3 [pid 5533] close(24 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5535] close(3 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] <... close resumed>) = 0 [pid 5534] close(4 [pid 5533] close(25 [pid 5535] read(200, [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5534] close(5 [pid 5533] close(26 [pid 5039] <... unlink resumed>) = 0 [pid 5535] symlink("/dev/binderfs", "./binderfs" [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5039] getdents64(3, [pid 5535] <... symlink resumed>) = 0 [pid 5534] close(6 [pid 5533] close(27 [pid 5532] close(23 [pid 5535] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5535] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(7 [pid 5533] close(28 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] close(3 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(8 [pid 5533] close(29 [pid 5535] close(4 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5532] close(24 [pid 5043] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(9 [pid 5533] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5039] close(3 [pid 5535] close(5 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... write resumed>) = 335 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(10 [pid 5533] exit_group(0 [pid 5532] close(25 [pid 5043] lstat("./72/binderfs", [pid 5039] <... close resumed>) = 0 [pid 5535] close(6 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5533] <... exit_group resumed>) = ? [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(11 [pid 5533] +++ exited with 0 +++ [pid 5532] close(26 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] rmdir("./66" [pid 5535] close(7 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] unlink("./72/binderfs" [pid 5039] <... rmdir resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(12 [pid 5532] close(27 [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5043] <... unlink resumed>) = 0 [pid 5039] mkdir("./67", 0777 [pid 5535] close(8 [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... restart_syscall resumed>) = 0 [pid 5043] umount2("./72/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... mkdir resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] close(13 [pid 5532] close(28 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5535] close(9write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./72/cgroup.net", ./strace-static-x86_64: Process 5536 attached [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] close(29 [pid 5044] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5536] set_robust_list(0x555556f426e0, 24 [pid 5535] close(10 [pid 5534] close(14 [pid 5532] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./72/cgroup.net" [pid 5536] <... set_robust_list resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 69 [pid 5536] chdir("./67" [pid 5535] close(11 [pid 5534] close(15 [pid 5532] <... write resumed>) = 335 [pid 5044] <... openat resumed>) = 3 [pid 5043] umount2("./72/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] <... chdir resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] exit_group(0 [pid 5044] fstat(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5536] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5535] close(12 [pid 5534] close(16 [pid 5532] <... exit_group resumed>) = ? [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] lstat("./72/cgroup.cpu", [pid 5536] <... prctl resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5532] +++ exited with 0 +++ [pid 5044] getdents64(3, [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5536] setpgid(0, 0 [pid 5535] close(13 [pid 5534] close(17 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] unlink("./72/cgroup.cpu" [pid 5536] <... setpgid resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5044] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5536] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5535] close(14 [pid 5534] close(18 [pid 5045] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./72/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] <... symlink resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./75/binderfs", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5536] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5535] close(15 [pid 5534] close(19 [pid 5045] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] lstat("./72/cgroup", [pid 5536] <... symlink resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] unlink("./75/binderfs" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5536] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5535] close(16 [pid 5534] close(20 [pid 5045] fstat(3, [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./72/cgroup" [pid 5536] <... symlink resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] umount2("./75/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5535] close(17 [pid 5534] close(21 [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] getdents64(3, [pid 5536] <... openat resumed>) = 3 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] lstat("./75/cgroup.net", [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5536] write(3, "1000", 4 [pid 5535] close(18 [pid 5534] close(22 [pid 5045] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] close(3 [pid 5536] <... write resumed>) = 4 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./75/cgroup.net" [pid 5043] <... close resumed>) = 0 [pid 5536] close(3 [pid 5535] close(19 [pid 5534] close(23 [pid 5045] lstat("./77/binderfs", [pid 5044] <... unlink resumed>) = 0 [pid 5043] rmdir("./72" [pid 5536] <... close resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] umount2("./75/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... rmdir resumed>) = 0 [pid 5536] read(200, [pid 5535] close(20 [pid 5534] close(24 [pid 5045] unlink("./77/binderfs" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] mkdir("./73", 0777 [pid 5536] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./75/cgroup.cpu", [pid 5043] <... mkdir resumed>) = 0 [pid 5536] symlink("/dev/binderfs", "./binderfs" [pid 5535] close(21 [pid 5534] close(25 [pid 5045] umount2("./77/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5537 attached [pid 5536] <... symlink resumed>) = 0 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./75/cgroup.cpu" [pid 5537] set_robust_list(0x555556f426e0, 24 [pid 5536] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5535] close(22 [pid 5534] close(26 [pid 5045] lstat("./77/cgroup.net", [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 75 [pid 5537] <... set_robust_list resumed>) = 0 [pid 5536] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./75/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5537] chdir("./73" [pid 5536] close(3 [pid 5535] close(23 [pid 5534] close(27 [pid 5045] unlink("./77/cgroup.net" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5537] <... chdir resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./75/cgroup", [pid 5537] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5536] close(4 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./77/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5537] <... prctl resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] close(24 [pid 5534] close(28 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./75/cgroup" [pid 5537] setpgid(0, 0 [pid 5536] close(5 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./77/cgroup.cpu", [pid 5044] <... unlink resumed>) = 0 [pid 5537] <... setpgid resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] close(25 [pid 5534] close(29 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] getdents64(3, [pid 5537] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5536] close(6 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./77/cgroup.cpu" [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5537] <... symlink resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] close(26 [pid 5534] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... unlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] close(3 [pid 5537] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5536] close(7 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... write resumed>) = 335 [pid 5045] umount2("./77/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... close resumed>) = 0 [pid 5537] <... symlink resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] close(27 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] rmdir("./75" [pid 5534] exit_group(0 [pid 5537] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5536] close(8 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5534] <... exit_group resumed>) = ? [pid 5045] lstat("./77/cgroup", [pid 5044] <... rmdir resumed>) = 0 [pid 5537] <... symlink resumed>) = 0 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] close(28 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] mkdir("./76", 0777 [pid 5537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5536] close(9 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./77/cgroup" [pid 5044] <... mkdir resumed>) = 0 [pid 5537] <... openat resumed>) = 3 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] close(29 [pid 5534] +++ exited with 0 +++ [pid 5045] <... unlink resumed>) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5538 attached write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5537] write(3, "1000", 4 [pid 5536] close(10 [pid 5535] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5537] <... write resumed>) = 4 [pid 5535] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5538] set_robust_list(0x555556f426e0, 24 [pid 5537] close(3 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] <... write resumed>) = 335 [pid 5045] close(3 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 78 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5538] <... set_robust_list resumed>) = 0 [pid 5537] <... close resumed>) = 0 [pid 5536] close(11 [pid 5535] exit_group(0 [pid 5045] <... close resumed>) = 0 [pid 5040] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5538] chdir("./76" [pid 5537] read(200, [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./77" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5538] <... chdir resumed>) = 0 [pid 5537] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5536] close(12 [pid 5535] <... exit_group resumed>) = ? [pid 5045] <... rmdir resumed>) = 0 [pid 5040] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5537] symlink("/dev/binderfs", "./binderfs" [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./78", 0777 [pid 5040] <... openat resumed>) = 3 [pid 5538] <... prctl resumed>) = 0 [pid 5537] <... symlink resumed>) = 0 [pid 5536] close(13 [pid 5045] <... mkdir resumed>) = 0 [pid 5040] fstat(3, [pid 5538] setpgid(0, 0 [pid 5537] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5535] +++ exited with 0 +++ [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5538] <... setpgid resumed>) = 0 [pid 5537] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(14 [pid 5040] getdents64(3, ./strace-static-x86_64: Process 5539 attached [pid 5538] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5537] close(3 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5538] <... symlink resumed>) = 0 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(15 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 80 [pid 5042] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5539] set_robust_list(0x555556f426e0, 24 [pid 5538] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5537] close(4 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5539] <... set_robust_list resumed>) = 0 [pid 5538] <... symlink resumed>) = 0 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(16 [pid 5042] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] chdir("./78" [pid 5538] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5537] close(5 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5539] <... chdir resumed>) = 0 [pid 5538] <... symlink resumed>) = 0 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(17 [pid 5042] fstat(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5539] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5537] close(6 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./70/binderfs", [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5539] <... prctl resumed>) = 0 [pid 5538] <... openat resumed>) = 3 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(18 [pid 5042] getdents64(3, [pid 5539] setpgid(0, 0 [pid 5538] write(3, "1000", 4 [pid 5537] close(7 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5539] <... setpgid resumed>) = 0 [pid 5538] <... write resumed>) = 4 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(19 [pid 5042] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5537] close(8 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5538] close(3 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./72/binderfs", [pid 5040] unlink("./70/binderfs" [pid 5539] <... symlink resumed>) = 0 [pid 5538] <... close resumed>) = 0 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(20 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5539] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5538] read(200, [pid 5537] close(9 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./72/binderfs" [pid 5040] <... unlink resumed>) = 0 [pid 5539] <... symlink resumed>) = 0 [pid 5538] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(21 [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./70/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5538] symlink("/dev/binderfs", "./binderfs" [pid 5537] close(10 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./72/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] <... symlink resumed>) = 0 [pid 5538] <... symlink resumed>) = 0 [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] close(22 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5538] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5537] close(11 [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./72/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./70/cgroup.net", [pid 5042] unlink("./72/cgroup.net" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./70/cgroup.net" [pid 5538] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./72/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./70/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] lstat("./72/cgroup.cpu", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5538] close(3 [pid 5537] close(12 [pid 5536] close(23 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./70/cgroup.cpu", [pid 5539] <... openat resumed>) = 3 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] write(3, "1000", 4 [pid 5538] close(4 [pid 5537] close(13 [pid 5536] close(24 [pid 5042] unlink("./72/cgroup.cpu" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5539] <... write resumed>) = 4 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(3 [pid 5538] close(5 [pid 5537] close(14 [pid 5536] close(25 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./70/cgroup.cpu" [pid 5539] <... close resumed>) = 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] read(200, [pid 5538] close(6 [pid 5537] close(15 [pid 5536] close(26 [pid 5042] umount2("./72/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5539] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] symlink("/dev/binderfs", "./binderfs" [pid 5538] close(7 [pid 5537] close(16 [pid 5536] close(27 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./70/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] <... symlink resumed>) = 0 [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5538] close(8 [pid 5537] close(17 [pid 5536] close(28 [pid 5042] lstat("./72/cgroup", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5539] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(3 [pid 5538] close(9 [pid 5537] close(18 [pid 5536] close(29 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] lstat("./70/cgroup", [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(4 [pid 5538] close(10write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5537] close(19 [pid 5536] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] unlink("./72/cgroup" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... write resumed>) = 335 [pid 5539] close(5 [pid 5538] close(11 [pid 5537] close(20 [pid 5536] exit_group(0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./70/cgroup" [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5536] <... exit_group resumed>) = ? [pid 5042] getdents64(3, [pid 5539] close(6 [pid 5538] close(12 [pid 5537] close(21 [pid 5536] +++ exited with 0 +++ [pid 5040] <... unlink resumed>) = 0 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5539] close(7 [pid 5538] close(13 [pid 5537] close(22 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5040] getdents64(3, [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5539] close(8 [pid 5538] close(14 [pid 5537] close(23 [pid 5039] <... restart_syscall resumed>) = 0 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5539] close(9 [pid 5538] close(15 [pid 5537] close(24 [pid 5042] rmdir("./72" [pid 5040] close(3 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] close(10 [pid 5538] close(16 [pid 5537] close(25 [pid 5042] <... rmdir resumed>) = 0 [pid 5040] <... close resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5539] close(11 [pid 5538] close(17 [pid 5537] close(26 [pid 5042] mkdir("./73", 0777 [pid 5040] rmdir("./70" [pid 5039] <... openat resumed>) = 3 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5539] close(12 [pid 5538] close(18 [pid 5537] close(27 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] mkdir("./71", 0777 [pid 5039] getdents64(3, [pid 5539] close(13 [pid 5538] close(19 [pid 5537] close(28 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] close(14 [pid 5538] close(20 [pid 5537] close(29 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./67/binderfs", ./strace-static-x86_64: Process 5540 attached [pid 5539] close(15 [pid 5538] close(21write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5537] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] <... mkdir resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5540] set_robust_list(0x555556f426e0, 24 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... write resumed>) = 335 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 75 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] unlink("./67/binderfs" [pid 5540] <... set_robust_list resumed>) = 0 [pid 5539] close(16 [pid 5538] close(22 [pid 5537] exit_group(0 [pid 5039] <... unlink resumed>) = 0 [pid 5540] chdir("./73" [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5537] <... exit_group resumed>) = ? [pid 5039] umount2("./67/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5541 attached [pid 5540] <... chdir resumed>) = 0 [pid 5539] close(17 [pid 5538] close(23 [pid 5537] +++ exited with 0 +++ [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5541] set_robust_list(0x555556f426e0, 24 [pid 5540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./67/cgroup.net", [pid 5541] <... set_robust_list resumed>) = 0 [pid 5540] <... prctl resumed>) = 0 [pid 5539] close(18 [pid 5538] close(24 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 73 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5541] chdir("./71" [pid 5540] setpgid(0, 0 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./67/cgroup.net" [pid 5541] <... chdir resumed>) = 0 [pid 5540] <... setpgid resumed>) = 0 [pid 5539] close(19 [pid 5538] close(25 [pid 5039] <... unlink resumed>) = 0 [pid 5541] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5540] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./67/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5541] <... prctl resumed>) = 0 [pid 5540] <... symlink resumed>) = 0 [pid 5539] close(20 [pid 5538] close(26 [pid 5043] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5541] setpgid(0, 0 [pid 5540] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./67/cgroup.cpu", [pid 5541] <... setpgid resumed>) = 0 [pid 5540] <... symlink resumed>) = 0 [pid 5539] close(21 [pid 5538] close(27 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5541] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5540] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] unlink("./67/cgroup.cpu" [pid 5541] <... symlink resumed>) = 0 [pid 5540] <... symlink resumed>) = 0 [pid 5539] close(22 [pid 5538] close(28 [pid 5043] <... openat resumed>) = 3 [pid 5039] <... unlink resumed>) = 0 [pid 5541] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, [pid 5039] umount2("./67/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5541] <... symlink resumed>) = 0 [pid 5540] <... openat resumed>) = 3 [pid 5539] close(23 [pid 5538] close(29 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5541] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5540] write(3, "1000", 4 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] lstat("./67/cgroup", [pid 5541] <... symlink resumed>) = 0 [pid 5540] <... write resumed>) = 4 [pid 5539] close(24 [pid 5538] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] getdents64(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5540] close(3 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... write resumed>) = 335 [pid 5039] unlink("./67/cgroup" [pid 5541] <... openat resumed>) = 3 [pid 5540] <... close resumed>) = 0 [pid 5539] close(25 [pid 5538] exit_group(0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... unlink resumed>) = 0 [pid 5541] write(3, "1000", 4 [pid 5540] read(200, [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] <... exit_group resumed>) = ? [pid 5039] getdents64(3, [pid 5541] <... write resumed>) = 4 [pid 5540] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5539] close(26 [pid 5043] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5541] close(3 [pid 5540] symlink("/dev/binderfs", "./binderfs" [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5541] <... close resumed>) = 0 [pid 5540] <... symlink resumed>) = 0 [pid 5539] close(27 [pid 5043] lstat("./73/binderfs", [pid 5541] read(200, [pid 5540] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5538] +++ exited with 0 +++ [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] close(3 [pid 5541] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5540] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(28 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] unlink("./73/binderfs" [pid 5541] symlink("/dev/binderfs", "./binderfs" [pid 5540] close(3 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... close resumed>) = 0 [pid 5541] <... symlink resumed>) = 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] close(29 [pid 5043] umount2("./73/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] rmdir("./67" [pid 5541] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5540] close(4 [pid 5539] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5541] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5043] lstat("./73/cgroup.net", [pid 5039] <... rmdir resumed>) = 0 [pid 5541] close(3 [pid 5540] close(5 [pid 5539] <... write resumed>) = 335 [pid 5044] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] unlink("./73/cgroup.net" [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] exit_group(0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5039] mkdir("./68", 0777 [pid 5043] umount2("./73/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./73/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] unlink("./73/cgroup.cpu") = 0 [pid 5043] umount2("./73/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./73/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] unlink("./73/cgroup") = 0 [pid 5043] getdents64(3, 0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] close(3 [pid 5541] close(4 [pid 5043] <... close resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(6 [pid 5539] <... exit_group resumed>) = ? [pid 5044] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] rmdir("./73" [pid 5039] <... mkdir resumed>) = 0 [pid 5541] close(5 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5539] +++ exited with 0 +++ [pid 5044] <... openat resumed>) = 3 [pid 5043] <... rmdir resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(7 [pid 5044] fstat(3, [pid 5043] mkdir("./74", 0777 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5541] close(6 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5542 attached [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(8 [pid 5044] getdents64(3, [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5543 attached [pid 5542] set_robust_list(0x555556f426e0, 24 [pid 5541] close(7 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5543] set_robust_list(0x555556f426e0, 24 [pid 5542] <... set_robust_list resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(9 [pid 5044] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 76 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 70 [pid 5543] <... set_robust_list resumed>) = 0 [pid 5542] chdir("./68" [pid 5541] close(8 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] chdir("./74" [pid 5542] <... chdir resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(10 [pid 5045] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5543] <... chdir resumed>) = 0 [pid 5542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5542] <... prctl resumed>) = 0 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... prctl resumed>) = 0 [pid 5542] setpgid(0, 0 [pid 5543] setpgid(0, 0 [pid 5542] <... setpgid resumed>) = 0 [pid 5543] <... setpgid resumed>) = 0 [pid 5542] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5541] close(9 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./76/binderfs", [pid 5543] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5542] <... symlink resumed>) = 0 [pid 5540] close(11 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... symlink resumed>) = 0 [pid 5542] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5541] close(10 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5543] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5542] <... symlink resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] unlink("./76/binderfs" [pid 5543] <... symlink resumed>) = 0 [pid 5542] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5541] close(11 [pid 5540] close(12 [pid 5045] fstat(3, [pid 5044] <... unlink resumed>) = 0 [pid 5543] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5542] <... symlink resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] umount2("./76/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5543] <... symlink resumed>) = 0 [pid 5542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5541] close(12 [pid 5540] close(13 [pid 5543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5542] <... openat resumed>) = 3 [pid 5543] <... openat resumed>) = 3 [pid 5542] write(3, "1000", 4 [pid 5543] write(3, "1000", 4 [pid 5542] <... write resumed>) = 4 [pid 5543] <... write resumed>) = 4 [pid 5542] close(3 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5543] close(3 [pid 5542] <... close resumed>) = 0 [pid 5044] lstat("./76/cgroup.net", [pid 5543] <... close resumed>) = 0 [pid 5542] read(200, [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5543] read(200, [pid 5542] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] unlink("./76/cgroup.net" [pid 5543] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5542] symlink("/dev/binderfs", "./binderfs" [pid 5541] close(13 [pid 5540] close(14 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... unlink resumed>) = 0 [pid 5543] symlink("/dev/binderfs", "./binderfs" [pid 5542] <... symlink resumed>) = 0 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./76/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... symlink resumed>) = 0 [pid 5542] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5541] close(14 [pid 5540] close(15 [pid 5045] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5543] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5542] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./76/cgroup.cpu", [pid 5543] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(3 [pid 5541] close(15 [pid 5540] close(16 [pid 5045] lstat("./78/binderfs", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5543] close(3 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] unlink("./76/cgroup.cpu" [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(4 [pid 5541] close(16 [pid 5540] close(17 [pid 5045] unlink("./78/binderfs" [pid 5044] <... unlink resumed>) = 0 [pid 5543] close(4 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./76/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(5 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5543] close(5 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] lstat("./76/cgroup", [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(6 [pid 5541] close(17 [pid 5540] close(18 [pid 5045] umount2("./78/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5543] close(6 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./76/cgroup" [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(7 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(19 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5543] close(7 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(8 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5543] close(8 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(9 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... close resumed>) = 0 [pid 5543] close(9 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(18 [pid 5045] lstat("./78/cgroup.net", [pid 5044] rmdir("./76" [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(10 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(20 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5543] close(10 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(19 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./78/cgroup.net" [pid 5044] mkdir("./77", 0777 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(11 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(21 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5543] close(11 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(20 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./78/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(12 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(22 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5544 attached [pid 5543] close(12 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(21 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./78/cgroup.cpu", [pid 5544] set_robust_list(0x555556f426e0, 24 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(13 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(23 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 79 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5544] <... set_robust_list resumed>) = 0 [pid 5543] close(13 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(22 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] chdir("./77" [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(14 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(24 [pid 5045] unlink("./78/cgroup.cpu" [pid 5544] <... chdir resumed>) = 0 [pid 5543] close(14 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(23 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5544] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(15 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(25 [pid 5045] umount2("./78/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5544] <... prctl resumed>) = 0 [pid 5543] close(15 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(24 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5544] setpgid(0, 0 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(16 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(26 [pid 5045] lstat("./78/cgroup", [pid 5544] <... setpgid resumed>) = 0 [pid 5543] close(16 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(25 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5544] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(17 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(27 [pid 5045] unlink("./78/cgroup" [pid 5544] <... symlink resumed>) = 0 [pid 5543] close(17 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(26 [pid 5544] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(18 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5544] <... symlink resumed>) = 0 [pid 5543] close(18 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(27 [pid 5540] close(28 [pid 5045] getdents64(3, [pid 5544] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(19 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5544] <... symlink resumed>) = 0 [pid 5543] close(19 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(28 [pid 5544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(20 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] close(29 [pid 5045] close(3 [pid 5544] <... openat resumed>) = 3 [pid 5543] close(20 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] close(29 [pid 5540] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5544] write(3, "1000", 4write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(21 [pid 5541] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] <... write resumed>) = 4 [pid 5543] close(21 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5540] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] rmdir("./78" [pid 5544] close(3 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(22 [pid 5541] <... write resumed>) = 335 [pid 5540] <... write resumed>) = 335 [pid 5045] <... rmdir resumed>) = 0 [pid 5544] <... close resumed>) = 0 [pid 5543] close(22 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] exit_group(0 [pid 5540] exit_group(0 [pid 5045] mkdir("./79", 0777 [pid 5544] read(200, [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(23 [pid 5541] <... exit_group resumed>) = ? [pid 5540] <... exit_group resumed>) = ? [pid 5045] <... mkdir resumed>) = 0 [pid 5544] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5543] close(23 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5540] +++ exited with 0 +++ [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5545 attached [pid 5544] symlink("/dev/binderfs", "./binderfs" [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(24 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 81 [pid 5543] close(24 [pid 5545] set_robust_list(0x555556f426e0, 24 [pid 5544] <... symlink resumed>) = 0 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] <... set_robust_list resumed>) = 0 [pid 5542] close(25 [pid 5545] chdir("./79" [pid 5544] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5543] close(25 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5541] +++ exited with 0 +++ [pid 5545] <... chdir resumed>) = 0 [pid 5544] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(26 [pid 5545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5544] close(3 [pid 5543] close(26 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] <... prctl resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5545] setpgid(0, 0 [pid 5544] close(4 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(27 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5545] <... setpgid resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(27 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5544] close(5 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] close(28 [pid 5042] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5545] <... symlink resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(28 [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5544] close(6 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5040] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] <... symlink resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] close(29 [pid 5542] close(29 [pid 5042] fstat(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5545] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5544] close(7 [pid 5543] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5542] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5545] <... symlink resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5542] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5544] close(8 [pid 5543] <... write resumed>) = 335 [pid 5542] <... write resumed>) = 335 [pid 5545] <... openat resumed>) = 3 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] exit_group(0 [pid 5542] exit_group(0 [pid 5042] getdents64(3, [pid 5040] <... openat resumed>) = 3 [pid 5545] write(3, "1000", 4 [pid 5544] close(9 [pid 5543] <... exit_group resumed>) = ? [pid 5542] <... exit_group resumed>) = ? [pid 5545] <... write resumed>) = 4 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5543] +++ exited with 0 +++ [pid 5542] +++ exited with 0 +++ [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] fstat(3, [pid 5545] close(3 [pid 5544] close(10 [pid 5042] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5545] <... close resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5545] read(200, [pid 5544] close(11 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5545] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] lstat("./73/binderfs", [pid 5040] getdents64(3, [pid 5039] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] symlink("/dev/binderfs", "./binderfs" [pid 5544] close(12 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5545] <... symlink resumed>) = 0 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5545] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5544] close(13 [pid 5043] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] unlink("./73/binderfs" [pid 5040] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5545] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5545] close(3 [pid 5544] close(14 [pid 5043] <... openat resumed>) = 3 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, [pid 5042] umount2("./73/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] getdents64(3, [pid 5545] close(4 [pid 5544] close(15 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] lstat("./71/binderfs", [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] close(5 [pid 5544] close(16 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] lstat("./73/cgroup.net", [pid 5040] unlink("./71/binderfs" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./68/binderfs", [pid 5545] close(6 [pid 5544] close(17 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] lstat("./74/binderfs", [pid 5042] unlink("./73/cgroup.net" [pid 5040] umount2("./71/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./68/binderfs" [pid 5545] close(7 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./74/binderfs" [pid 5042] umount2("./73/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./71/cgroup.net", [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(18 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5545] close(8 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./74/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] lstat("./73/cgroup.cpu", [pid 5040] unlink("./71/cgroup.net" [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(19 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] umount2("./68/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] close(9 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./74/cgroup.net", [pid 5042] unlink("./73/cgroup.cpu" [pid 5040] umount2("./71/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(20 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5545] close(10 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./74/cgroup.net" [pid 5042] umount2("./73/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./71/cgroup.cpu", [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(21 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] lstat("./68/cgroup.net", [pid 5545] close(11 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./74/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] lstat("./73/cgroup", [pid 5040] unlink("./71/cgroup.cpu" [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(22 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5545] close(12 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./74/cgroup.cpu", [pid 5042] unlink("./73/cgroup" [pid 5040] umount2("./71/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(23 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./68/cgroup.net" [pid 5545] close(13 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./74/cgroup.cpu" [pid 5042] getdents64(3, [pid 5040] lstat("./71/cgroup", [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(24 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5545] close(14 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./74/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] close(3 [pid 5040] unlink("./71/cgroup" [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(25 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... close resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] umount2("./68/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] close(15 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./74/cgroup", [pid 5042] rmdir("./73" [pid 5040] getdents64(3, [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(26 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... rmdir resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5545] close(16 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./74/cgroup" [pid 5042] mkdir("./74", 0777 [pid 5040] close(3 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(27 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] <... close resumed>) = 0 [pid 5039] lstat("./68/cgroup.cpu", [pid 5545] close(17 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] rmdir("./71"./strace-static-x86_64: Process 5546 attached [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(28 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5546] set_robust_list(0x555556f426e0, 24 [pid 5545] close(18 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] close(3 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 76 [pid 5040] mkdir("./72", 0777 [pid 5039] unlink("./68/cgroup.cpu" [pid 5546] <... set_robust_list resumed>) = 0 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] close(29 [pid 5043] <... close resumed>) = 0 [pid 5040] <... mkdir resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5546] chdir("./74"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5545] close(19 [pid 5544] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] rmdir("./74" [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] umount2("./68/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5547 attached [pid 5546] <... chdir resumed>) = 0 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] <... rmdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5547] set_robust_list(0x555556f426e0, 24 [pid 5546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5545] close(20 [pid 5544] <... write resumed>) = 335 [pid 5043] mkdir("./75", 0777 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 74 [pid 5039] lstat("./68/cgroup", [pid 5547] <... set_robust_list resumed>) = 0 [pid 5546] <... prctl resumed>) = 0 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5544] exit_group(0 [pid 5043] <... mkdir resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5547] chdir("./72" [pid 5546] setpgid(0, 0 [pid 5545] close(21 [pid 5544] <... exit_group resumed>) = ? [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] unlink("./68/cgroup" [pid 5547] <... chdir resumed>) = 0 [pid 5546] <... setpgid resumed>) = 0 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5547] setpgid(0, 0 [pid 5546] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5039] <... unlink resumed>) = 0 [pid 5547] <... setpgid resumed>) = 0 [pid 5547] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5546] <... symlink resumed>) = 0 [pid 5545] close(22 [pid 5039] getdents64(3, [pid 5547] <... symlink resumed>) = 0 [pid 5544] +++ exited with 0 +++ [pid 5547] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5546] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu"./strace-static-x86_64: Process 5548 attached [pid 5547] <... symlink resumed>) = 0 [pid 5546] <... symlink resumed>) = 0 [pid 5545] close(23 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 77 [pid 5039] close(3 [pid 5548] set_robust_list(0x555556f426e0, 24 [pid 5547] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5546] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5039] <... close resumed>) = 0 [pid 5548] <... set_robust_list resumed>) = 0 [pid 5547] <... symlink resumed>) = 0 [pid 5546] <... symlink resumed>) = 0 [pid 5545] close(24 [pid 5044] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] rmdir("./68" [pid 5548] chdir("./75" [pid 5547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... rmdir resumed>) = 0 [pid 5548] <... chdir resumed>) = 0 [pid 5547] <... openat resumed>) = 3 [pid 5546] <... openat resumed>) = 3 [pid 5545] close(25 [pid 5044] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] mkdir("./69", 0777 [pid 5548] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5546] write(3, "1000", 4 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... openat resumed>) = 3 [pid 5039] <... mkdir resumed>) = 0 [pid 5548] <... prctl resumed>) = 0 [pid 5546] <... write resumed>) = 4 [pid 5545] close(26 [pid 5044] fstat(3, [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5549 attached [pid 5548] setpgid(0, 0 [pid 5547] write(3, "1000", 4 [pid 5546] close(3 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5549] set_robust_list(0x555556f426e0, 24 [pid 5548] <... setpgid resumed>) = 0 [pid 5547] <... write resumed>) = 4 [pid 5546] <... close resumed>) = 0 [pid 5545] close(27 [pid 5044] getdents64(3, [pid 5549] <... set_robust_list resumed>) = 0 [pid 5548] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5547] close(3 [pid 5546] read(200, [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 71 [pid 5549] chdir("./69" [pid 5548] <... symlink resumed>) = 0 [pid 5547] <... close resumed>) = 0 [pid 5546] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5545] close(28 [pid 5044] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5549] <... chdir resumed>) = 0 [pid 5548] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5547] read(200, [pid 5546] symlink("/dev/binderfs", "./binderfs" [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5549] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5548] <... symlink resumed>) = 0 [pid 5546] <... symlink resumed>) = 0 [pid 5545] close(29 [pid 5044] lstat("./77/binderfs", [pid 5549] <... prctl resumed>) = 0 [pid 5548] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5546] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5545] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5549] setpgid(0, 0 [pid 5548] <... symlink resumed>) = 0 [pid 5546] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] unlink("./77/binderfs" [pid 5547] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5549] <... setpgid resumed>) = 0 [pid 5548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5546] close(3 [pid 5545] <... write resumed>) = 335 [pid 5044] <... unlink resumed>) = 0 [pid 5549] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5548] <... openat resumed>) = 3 [pid 5547] symlink("/dev/binderfs", "./binderfs" [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5545] exit_group(0 [pid 5044] umount2("./77/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5549] <... symlink resumed>) = 0 [pid 5548] write(3, "1000", 4 [pid 5547] <... symlink resumed>) = 0 [pid 5546] close(4 [pid 5545] <... exit_group resumed>) = ? [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5549] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5548] <... write resumed>) = 4 [pid 5547] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(3) = -1 EBADF (Bad file descriptor) [pid 5547] close(4 [pid 5548] close(3 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(5 [pid 5044] lstat("./77/cgroup.net", [pid 5549] <... symlink resumed>) = 0 [pid 5547] close(5) = -1 EBADF (Bad file descriptor) [pid 5547] close(6) = -1 EBADF (Bad file descriptor) [pid 5547] close(7) = -1 EBADF (Bad file descriptor) [pid 5547] close(8) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5549] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5548] <... close resumed>) = 0 [pid 5547] close(9 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] read(200, [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./77/cgroup.net" [pid 5549] <... symlink resumed>) = 0 [pid 5548] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5547] close(10 [pid 5546] close(6 [pid 5545] +++ exited with 0 +++ [pid 5549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5548] symlink("/dev/binderfs", "./binderfs" [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5549] <... openat resumed>) = 3 [pid 5548] <... symlink resumed>) = 0 [pid 5547] close(11 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(12 [pid 5546] close(7 [pid 5044] umount2("./77/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5549] write(3, "1000", 4 [pid 5548] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5549] <... write resumed>) = 4 [pid 5548] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(13 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5549] close(3 [pid 5548] close(3 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(8 [pid 5045] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5549] <... close resumed>) = 0 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(14 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] lstat("./77/cgroup.cpu", [pid 5548] close(4 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(9 [pid 5045] fstat(3, [pid 5549] read(200, [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(15 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5549] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5548] close(5 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(10 [pid 5045] getdents64(3, [pid 5044] unlink("./77/cgroup.cpu" [pid 5547] close(16 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5549] symlink("/dev/binderfs", "./binderfs" [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(11 [pid 5045] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5548] close(6 [pid 5547] close(17 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5549] <... symlink resumed>) = 0 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(12 [pid 5045] lstat("./79/binderfs", [pid 5549] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5548] close(7 [pid 5547] close(18 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] umount2("./77/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5549] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(13 [pid 5045] unlink("./79/binderfs" [pid 5549] close(3 [pid 5548] close(8 [pid 5547] close(19 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(14 [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./77/cgroup", [pid 5549] close(4 [pid 5548] close(9 [pid 5547] close(20 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./79/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(15 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./77/cgroup" [pid 5548] close(10 [pid 5547] close(21 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./79/cgroup.net", [pid 5044] <... unlink resumed>) = 0 [pid 5549] close(5 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(16 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] getdents64(3, [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(22 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./79/cgroup.net" [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5549] close(6 [pid 5548] close(11 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(17 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(23 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] close(3 [pid 5549] close(7) = -1 EBADF (Bad file descriptor) [pid 5548] close(12 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(18 [pid 5045] umount2("./79/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... close resumed>) = 0 [pid 5549] close(8 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(24 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] rmdir("./77" [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(13 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(19 [pid 5045] lstat("./79/cgroup.cpu", [pid 5549] close(9 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(25 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(14 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(20 [pid 5045] unlink("./79/cgroup.cpu" [pid 5044] mkdir("./78", 0777 [pid 5549] close(10 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(26 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(15 [pid 5546] close(21 [pid 5044] <... mkdir resumed>) = 0 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(11 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(27 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./79/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(16 [pid 5549] close(12 [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(22 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(13) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] close(28 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./79/cgroup", ./strace-static-x86_64: Process 5550 attached [pid 5549] close(14 [pid 5548] close(17 [pid 5550] set_robust_list(0x555556f426e0, 24 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(23 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 80 [pid 5550] <... set_robust_list resumed>) = 0 [pid 5549] close(15 [pid 5548] close(18 [pid 5547] close(29 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./79/cgroup" [pid 5550] chdir("./78" [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... chdir resumed>) = 0 [pid 5549] close(16write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5547] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(24 [pid 5550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5550] <... prctl resumed>) = 0 [pid 5549] close(17 [pid 5547] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] setpgid(0, 0 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(19 [pid 5045] getdents64(3, [pid 5550] <... setpgid resumed>) = 0 [pid 5549] close(18 [pid 5547] <... write resumed>) = 335 [pid 5550] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5547] exit_group(0 [pid 5546] close(25 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5550] <... symlink resumed>) = 0 [pid 5549] close(19 [pid 5550] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(20 [pid 5547] <... exit_group resumed>) = ? [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5550] <... symlink resumed>) = 0 [pid 5549] close(20 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... symlink resumed>) = 0 [pid 5549] close(21 [pid 5550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... openat resumed>) = 3 [pid 5549] close(22 [pid 5546] close(26 [pid 5045] <... close resumed>) = 0 [pid 5550] write(3, "1000", 4 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... write resumed>) = 4 [pid 5549] close(23 [pid 5550] close(3 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(21 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./79" [pid 5550] <... close resumed>) = 0 [pid 5549] close(24 [pid 5546] close(27 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5550] read(200, [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(22 [pid 5547] +++ exited with 0 +++ [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./80", 0777 [pid 5550] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5549] close(25 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(28 [pid 5045] <... mkdir resumed>) = 0 [pid 5550] symlink("/dev/binderfs", "./binderfs" [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(23 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5550] <... symlink resumed>) = 0 [pid 5549] close(26 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] close(29 [pid 5040] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5551 attached [pid 5550] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(24 [pid 5546] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] set_robust_list(0x555556f426e0, 24 [pid 5550] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(27 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5546] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 82 [pid 5551] <... set_robust_list resumed>) = 0 [pid 5550] close(3 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(25 [pid 5040] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5551] chdir("./80" [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(28 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] <... write resumed>) = 335 [pid 5040] <... openat resumed>) = 3 [pid 5551] <... chdir resumed>) = 0 [pid 5550] close(4write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(26 [pid 5546] exit_group(0 [pid 5040] fstat(3, [pid 5551] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] close(29 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] <... exit_group resumed>) = ? [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5551] <... prctl resumed>) = 0 [pid 5550] close(5 [pid 5549] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] close(27 [pid 5040] getdents64(3, [pid 5551] setpgid(0, 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5551] <... setpgid resumed>) = 0 [pid 5550] close(6 [pid 5549] <... write resumed>) = 335 [pid 5548] close(28 [pid 5040] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5551] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] exit_group(0 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5546] +++ exited with 0 +++ [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] <... symlink resumed>) = 0 [pid 5550] close(7 [pid 5551] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] <... exit_group resumed>) = ? [pid 5548] close(29 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5040] lstat("./72/binderfs", [pid 5551] <... symlink resumed>) = 0 [pid 5548] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5551] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5550] close(8 [pid 5548] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] unlink("./72/binderfs" [pid 5551] <... symlink resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5548] <... write resumed>) = 335 [pid 5042] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5550] close(9 [pid 5548] exit_group(0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5551] <... openat resumed>) = 3 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5549] +++ exited with 0 +++ [pid 5548] <... exit_group resumed>) = ? [pid 5042] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] umount2("./72/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5551] write(3, "1000", 4 [pid 5550] close(10 [pid 5042] <... openat resumed>) = 3 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] <... write resumed>) = 4 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] fstat(3, [pid 5551] close(3 [pid 5550] close(11 [pid 5040] lstat("./72/cgroup.net", [pid 5551] <... close resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5551] read(200, [pid 5550] close(12 [pid 5548] +++ exited with 0 +++ [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5551] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5040] unlink("./72/cgroup.net" [pid 5551] symlink("/dev/binderfs", "./binderfs" [pid 5550] close(13 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5551] <... symlink resumed>) = 0 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5551] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5550] close(14 [pid 5551] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./72/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... restart_syscall resumed>) = 0 [pid 5551] close(3 [pid 5550] close(15 [pid 5043] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] lstat("./74/binderfs", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] close(4 [pid 5550] close(16 [pid 5043] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] unlink("./74/binderfs" [pid 5040] lstat("./72/cgroup.cpu", [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... openat resumed>) = 3 [pid 5550] close(17 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5551] close(5 [pid 5039] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, [pid 5042] <... unlink resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] close(18 [pid 5040] unlink("./72/cgroup.cpu" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] close(6 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] umount2("./74/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] close(19 [pid 5043] getdents64(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] close(7 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] lstat("./74/cgroup.net", [pid 5040] umount2("./72/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] close(20 [pid 5043] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5551] close(8 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] unlink("./74/cgroup.net" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] close(21 [pid 5043] lstat("./75/binderfs", [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./72/cgroup", [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5551] close(9 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] umount2("./74/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] getdents64(3, [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] close(22 [pid 5043] unlink("./75/binderfs" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./72/cgroup" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5551] close(10 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5042] lstat("./74/cgroup.cpu", [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] close(23 [pid 5043] umount2("./75/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5551] close(11 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] getdents64(3, [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] close(24 [pid 5043] lstat("./75/cgroup.net", [pid 5042] unlink("./74/cgroup.cpu" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] close(12 [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] close(3 [pid 5039] lstat("./69/binderfs", [pid 5551] close(13 [pid 5550] close(25 [pid 5043] unlink("./75/cgroup.net" [pid 5042] umount2("./74/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... close resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5040] rmdir("./72" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5551] close(14 [pid 5550] close(26 [pid 5043] umount2("./75/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... rmdir resumed>) = 0 [pid 5039] unlink("./69/binderfs" [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] lstat("./74/cgroup", [pid 5040] mkdir("./73", 0777 [pid 5039] <... unlink resumed>) = 0 [pid 5551] close(15 [pid 5550] close(27 [pid 5043] lstat("./75/cgroup.cpu", [pid 5040] <... mkdir resumed>) = 0 [pid 5039] umount2("./69/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] close(16 [pid 5550] close(28 [pid 5043] unlink("./75/cgroup.cpu" [pid 5042] unlink("./74/cgroup"./strace-static-x86_64: Process 5552 attached [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5039] lstat("./69/cgroup.net", [pid 5552] set_robust_list(0x555556f426e0, 24 [pid 5551] close(17 [pid 5550] close(29 [pid 5043] umount2("./75/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 75 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5552] <... set_robust_list resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] getdents64(3, [pid 5039] unlink("./69/cgroup.net" [pid 5552] chdir("./73" [pid 5551] close(18 [pid 5550] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] lstat("./75/cgroup", [pid 5039] <... unlink resumed>) = 0 [pid 5552] <... chdir resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... write resumed>) = 335 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] umount2("./69/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5552] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5551] close(19 [pid 5550] exit_group(0 [pid 5043] unlink("./75/cgroup" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5552] <... prctl resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5550] <... exit_group resumed>) = ? [pid 5043] <... unlink resumed>) = 0 [pid 5039] lstat("./69/cgroup.cpu", [pid 5552] setpgid(0, 0 [pid 5551] close(20 [pid 5550] +++ exited with 0 +++ [pid 5043] getdents64(3, [pid 5042] close(3 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5552] <... setpgid resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... close resumed>) = 0 [pid 5039] unlink("./69/cgroup.cpu" [pid 5552] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5551] close(21 [pid 5043] close(3 [pid 5039] <... unlink resumed>) = 0 [pid 5552] <... symlink resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5043] <... close resumed>) = 0 [pid 5042] rmdir("./74" [pid 5039] umount2("./69/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5552] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5551] close(22 [pid 5044] <... restart_syscall resumed>) = 0 [pid 5043] rmdir("./75" [pid 5042] <... rmdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5552] <... symlink resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... rmdir resumed>) = 0 [pid 5042] mkdir("./75", 0777 [pid 5039] lstat("./69/cgroup", [pid 5552] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5551] close(23 [pid 5043] mkdir("./76", 0777 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5552] <... symlink resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... mkdir resumed>) = 0 [pid 5042] <... mkdir resumed>) = 0 [pid 5039] unlink("./69/cgroup" [pid 5552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5551] close(24 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5553 attached [pid 5552] <... openat resumed>) = 3 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] getdents64(3, [pid 5553] set_robust_list(0x555556f426e0, 24 [pid 5552] write(3, "1000", 4 [pid 5551] close(25 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 78 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5553] <... set_robust_list resumed>) = 0 [pid 5552] <... write resumed>) = 4 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... openat resumed>) = 3 [pid 5039] close(3./strace-static-x86_64: Process 5554 attached [pid 5553] chdir("./76" [pid 5552] close(3 [pid 5551] close(26 [pid 5044] fstat(3, [pid 5039] <... close resumed>) = 0 [pid 5554] set_robust_list(0x555556f426e0, 24 [pid 5553] <... chdir resumed>) = 0 [pid 5552] <... close resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] rmdir("./69" [pid 5554] <... set_robust_list resumed>) = 0 [pid 5553] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5552] read(200, [pid 5551] close(27 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 77 [pid 5039] <... rmdir resumed>) = 0 [pid 5553] <... prctl resumed>) = 0 [pid 5552] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5039] mkdir("./70", 0777 [pid 5554] chdir("./75" [pid 5553] setpgid(0, 0 [pid 5552] symlink("/dev/binderfs", "./binderfs" [pid 5551] close(28 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... mkdir resumed>) = 0 [pid 5554] <... chdir resumed>) = 0 [pid 5553] <... setpgid resumed>) = 0 [pid 5552] <... symlink resumed>) = 0 [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5554] prctl(PR_SET_PDEATHSIG, SIGKILLwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5553] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5552] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5551] close(29 [pid 5044] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5555 attached [pid 5554] <... prctl resumed>) = 0 [pid 5553] <... symlink resumed>) = 0 [pid 5552] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] set_robust_list(0x555556f426e0, 24 [pid 5553] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5552] close(3 [pid 5551] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5555] <... set_robust_list resumed>) = 0 [pid 5553] <... symlink resumed>) = 0 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... write resumed>) = 335 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 72 [pid 5555] chdir("./70" [pid 5554] setpgid(0, 0 [pid 5553] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5552] close(4 [pid 5551] exit_group(0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] <... chdir resumed>) = 0 [pid 5554] <... setpgid resumed>) = 0 [pid 5553] <... symlink resumed>) = 0 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] <... exit_group resumed>) = ? [pid 5555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5554] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5552] close(5 [pid 5044] lstat("./78/binderfs", [pid 5555] <... prctl resumed>) = 0 [pid 5554] <... symlink resumed>) = 0 [pid 5553] <... openat resumed>) = 3 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5551] +++ exited with 0 +++ [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5555] setpgid(0, 0 [pid 5554] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5553] write(3, "1000", 4 [pid 5552] close(6 [pid 5555] <... setpgid resumed>) = 0 [pid 5554] <... symlink resumed>) = 0 [pid 5553] <... write resumed>) = 4 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./78/binderfs" [pid 5555] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5554] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5553] close(3 [pid 5552] close(7 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5555] <... symlink resumed>) = 0 [pid 5553] <... close resumed>) = 0 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5554] <... symlink resumed>) = 0 [pid 5555] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5553] read(200, [pid 5552] close(8 [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5044] umount2("./78/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... symlink resumed>) = 0 [pid 5554] <... openat resumed>) = 3 [pid 5553] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... restart_syscall resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5554] write(3, "1000", 4 [pid 5553] symlink("/dev/binderfs", "./binderfs" [pid 5552] close(9 [pid 5555] <... symlink resumed>) = 0 [pid 5554] <... write resumed>) = 4 [pid 5553] <... symlink resumed>) = 0 [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] lstat("./78/cgroup.net", [pid 5555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5554] close(3 [pid 5553] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5552] close(10 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5555] <... openat resumed>) = 3 [pid 5554] <... close resumed>) = 0 [pid 5553] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] write(3, "1000", 4 [pid 5554] read(200, [pid 5553] close(3 [pid 5552] close(11 [pid 5044] unlink("./78/cgroup.net" [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] <... write resumed>) = 4 [pid 5554] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5555] close(3 [pid 5554] symlink("/dev/binderfs", "./binderfs" [pid 5553] close(4 [pid 5552] close(12 [pid 5045] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] umount2("./78/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... close resumed>) = 0 [pid 5554] <... symlink resumed>) = 0 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] read(200, [pid 5554] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5553] close(5 [pid 5552] close(13 [pid 5045] <... openat resumed>) = 3 [pid 5555] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5554] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] symlink("/dev/binderfs", "./binderfs" [pid 5554] close(3 [pid 5553] close(6 [pid 5552] close(14 [pid 5555] <... symlink resumed>) = 0 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] lstat("./78/cgroup.cpu", [pid 5555] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5554] close(4 [pid 5553] close(7 [pid 5552] close(15 [pid 5045] getdents64(3, [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5555] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] unlink("./78/cgroup.cpu" [pid 5555] close(3 [pid 5554] close(5 [pid 5553] close(8 [pid 5552] close(16 [pid 5045] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5555] close(4 [pid 5554] close(6 [pid 5553] close(9 [pid 5552] close(17 [pid 5045] lstat("./80/binderfs", [pid 5044] umount2("./78/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5555] close(5 [pid 5554] close(7 [pid 5553] close(10 [pid 5552] close(18 [pid 5045] unlink("./80/binderfs" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5555] close(6 [pid 5554] close(8 [pid 5553] close(11 [pid 5552] close(19 [pid 5045] umount2("./80/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./78/cgroup", [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] close(7 [pid 5554] close(9 [pid 5553] close(12 [pid 5552] close(20 [pid 5045] lstat("./80/cgroup.net", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] unlink("./78/cgroup" [pid 5555] close(8 [pid 5554] close(10 [pid 5553] close(13 [pid 5552] close(21 [pid 5045] unlink("./80/cgroup.net" [pid 5044] <... unlink resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5555] close(9 [pid 5554] close(11 [pid 5553] close(14 [pid 5552] close(22 [pid 5045] umount2("./80/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] close(10 [pid 5554] close(12 [pid 5553] close(15 [pid 5552] close(23 [pid 5045] lstat("./80/cgroup.cpu", [pid 5044] close(3 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... close resumed>) = 0 [pid 5555] close(11 [pid 5554] close(13 [pid 5553] close(16 [pid 5552] close(24 [pid 5045] unlink("./80/cgroup.cpu" [pid 5044] rmdir("./78" [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5555] close(12 [pid 5554] close(14 [pid 5553] close(17 [pid 5552] close(25 [pid 5045] umount2("./80/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... rmdir resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] close(13 [pid 5554] close(15 [pid 5553] close(18 [pid 5552] close(26 [pid 5045] lstat("./80/cgroup", [pid 5044] mkdir("./79", 0777 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5555] close(14 [pid 5554] close(16 [pid 5553] close(19 [pid 5552] close(27 [pid 5045] unlink("./80/cgroup" [pid 5044] <... mkdir resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5555] close(15 [pid 5554] close(17 [pid 5553] close(20 [pid 5552] close(28 [pid 5045] getdents64(3, ./strace-static-x86_64: Process 5556 attached [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] set_robust_list(0x555556f426e0, 24 [pid 5555] close(16 [pid 5554] close(18 [pid 5553] close(21 [pid 5552] close(29 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 81 [pid 5556] <... set_robust_list resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5556] chdir("./79"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5555] close(17 [pid 5554] close(19 [pid 5553] close(22 [pid 5552] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... close resumed>) = 0 [pid 5556] <... chdir resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./80" [pid 5556] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5555] close(18 [pid 5554] close(20 [pid 5553] close(23 [pid 5552] <... write resumed>) = 335 [pid 5045] <... rmdir resumed>) = 0 [pid 5556] <... prctl resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5552] exit_group(0 [pid 5045] mkdir("./81", 0777 [pid 5556] setpgid(0, 0 [pid 5555] close(19 [pid 5554] close(21 [pid 5553] close(24 [pid 5552] <... exit_group resumed>) = ? [pid 5045] <... mkdir resumed>) = 0 [pid 5556] <... setpgid resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] close(25 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5556] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5555] close(20 [pid 5554] close(22 [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] close(26 [pid 5556] <... symlink resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5557 attached [pid 5556] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5555] close(21 [pid 5554] close(23 [pid 5553] close(27 [pid 5552] +++ exited with 0 +++ [pid 5557] set_robust_list(0x555556f426e0, 24 [pid 5556] <... symlink resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 83 [pid 5557] <... set_robust_list resumed>) = 0 [pid 5556] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5555] close(22 [pid 5554] close(24 [pid 5553] close(28 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5557] chdir("./81" [pid 5556] <... symlink resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] <... chdir resumed>) = 0 [pid 5556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5555] close(23 [pid 5554] close(25 [pid 5553] close(29write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5556] <... openat resumed>) = 3 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] <... prctl resumed>) = 0 [pid 5556] write(3, "1000", 4 [pid 5555] close(24 [pid 5554] close(26 [pid 5553] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5557] setpgid(0, 0 [pid 5556] <... write resumed>) = 4 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... write resumed>) = 335 [pid 5040] <... openat resumed>) = 3 [pid 5557] <... setpgid resumed>) = 0 [pid 5556] close(3 [pid 5555] close(25 [pid 5554] close(27 [pid 5553] exit_group(0 [pid 5557] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5553] <... exit_group resumed>) = ? [pid 5040] fstat(3, [pid 5557] <... symlink resumed>) = 0 [pid 5556] <... close resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(28 [pid 5553] +++ exited with 0 +++ [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] getdents64(3, [pid 5557] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5556] read(200, [pid 5555] close(26 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] <... symlink resumed>) = 0 [pid 5556] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] close(29 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5557] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5556] symlink("/dev/binderfs", "./binderfs" [pid 5555] close(27 [pid 5554] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOWwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5557] <... symlink resumed>) = 0 [pid 5556] <... symlink resumed>) = 0 [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./73/binderfs", [pid 5557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5556] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5555] close(28 [pid 5554] <... write resumed>) = 335 [pid 5043] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5557] <... openat resumed>) = 3 [pid 5556] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5554] exit_group(0 [pid 5043] <... openat resumed>) = 3 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5557] write(3, "1000", 4 [pid 5556] close(3 [pid 5555] close(29 [pid 5554] <... exit_group resumed>) = ? [pid 5043] fstat(3, [pid 5557] <... write resumed>) = 4 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] unlink("./73/binderfs"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5557] close(3 [pid 5556] close(4 [pid 5555] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5554] +++ exited with 0 +++ [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5557] <... close resumed>) = 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] <... write resumed>) = 335 [pid 5043] getdents64(3, [pid 5557] read(200, [pid 5556] close(5 [pid 5555] exit_group(0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5557] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5555] <... exit_group resumed>) = ? [pid 5043] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] symlink("/dev/binderfs", "./binderfs" [pid 5556] close(6 [pid 5555] +++ exited with 0 +++ [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5557] <... symlink resumed>) = 0 [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./76/binderfs", [pid 5040] umount2("./73/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5556] close(7 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5557] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./76/binderfs" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5557] close(3 [pid 5556] close(8 [pid 5043] <... unlink resumed>) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./76/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./73/cgroup.net", [pid 5557] close(4 [pid 5556] close(9 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./76/cgroup.net", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5557] close(5 [pid 5556] close(10 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... restart_syscall resumed>) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./76/cgroup.net" [pid 5040] unlink("./73/cgroup.net" [pid 5557] close(6 [pid 5556] close(11 [pid 5043] <... unlink resumed>) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./76/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5557] close(7 [pid 5556] close(12 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./73/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./76/cgroup.cpu", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5557] close(8 [pid 5556] close(13 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./76/cgroup.cpu" [pid 5040] lstat("./73/cgroup.cpu", [pid 5557] close(9 [pid 5556] close(14 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./76/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5557] close(10 [pid 5556] close(15 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./76/cgroup", [pid 5042] fstat(3, [pid 5040] unlink("./73/cgroup.cpu" [pid 5039] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5557] close(11 [pid 5556] close(16 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./76/cgroup" [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5557] close(12 [pid 5556] close(17 [pid 5043] <... unlink resumed>) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5042] getdents64(3, [pid 5040] umount2("./73/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] close(13 [pid 5556] close(18 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] fstat(3, [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] close(3 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5557] close(14 [pid 5556] close(19 [pid 5043] <... close resumed>) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] rmdir("./76" [pid 5042] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./73/cgroup", [pid 5557] close(15 [pid 5556] close(20 [pid 5043] <... rmdir resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] getdents64(3, [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] mkdir("./77", 0777 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5557] close(16 [pid 5556] close(21 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] lstat("./75/binderfs", [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] unlink("./73/cgroup"./strace-static-x86_64: Process 5558 attached [pid 5557] close(17 [pid 5556] close(22 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5558] set_robust_list(0x555556f426e0, 24 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./75/binderfs" [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5558] <... set_robust_list resumed>) = 0 [pid 5557] close(18 [pid 5556] close(23 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 79 [pid 5558] chdir("./77" [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5040] getdents64(3, [pid 5039] lstat("./70/binderfs", [pid 5558] <... chdir resumed>) = 0 [pid 5557] close(19 [pid 5556] close(24 [pid 5558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... prctl resumed>) = 0 [pid 5557] close(20 [pid 5556] close(25 [pid 5558] setpgid(0, 0 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./75/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5558] <... setpgid resumed>) = 0 [pid 5557] close(21 [pid 5556] close(26 [pid 5558] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] close(3 [pid 5039] unlink("./70/binderfs" [pid 5558] <... symlink resumed>) = 0 [pid 5557] close(22 [pid 5556] close(27 [pid 5042] lstat("./75/cgroup.net", [pid 5558] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... close resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5558] <... symlink resumed>) = 0 [pid 5557] close(23 [pid 5556] close(28 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] rmdir("./73" [pid 5039] umount2("./70/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5558] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./75/cgroup.net" [pid 5558] <... symlink resumed>) = 0 [pid 5557] close(24 [pid 5556] close(29 [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5558] <... openat resumed>) = 3 [pid 5557] close(25write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5556] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] mkdir("./74", 0777 [pid 5039] lstat("./70/cgroup.net", [pid 5558] write(3, "1000", 4 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... write resumed>) = 335 [pid 5042] umount2("./75/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5558] <... write resumed>) = 4 [pid 5557] close(26 [pid 5556] exit_group(0 [pid 5040] <... mkdir resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5558] close(3 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5556] <... exit_group resumed>) = ? [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] unlink("./70/cgroup.net" [pid 5558] <... close resumed>) = 0 [pid 5557] close(27 [pid 5556] +++ exited with 0 +++ [pid 5042] lstat("./75/cgroup.cpu", [pid 5558] read(200, [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5557] close(28 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5558] symlink("/dev/binderfs", "./binderfs" [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5559 attached [pid 5558] <... symlink resumed>) = 0 [pid 5557] close(29 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5559] set_robust_list(0x555556f426e0, 24 [pid 5558] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5557] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] <... set_robust_list resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5558] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] unlink("./75/cgroup.cpu" [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 76 [pid 5039] umount2("./70/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] chdir("./74" [pid 5558] close(3 [pid 5557] <... write resumed>) = 335 [pid 5044] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5559] <... chdir resumed>) = 0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] exit_group(0 [pid 5044] <... openat resumed>) = 3 [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5559] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5558] close(4 [pid 5557] <... exit_group resumed>) = ? [pid 5044] fstat(3, [pid 5559] <... prctl resumed>) = 0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5557] +++ exited with 0 +++ [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] umount2("./75/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./70/cgroup.cpu", [pid 5559] setpgid(0, 0 [pid 5558] close(5 [pid 5044] getdents64(3, [pid 5559] <... setpgid resumed>) = 0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5559] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5558] close(6 [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5044] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] <... symlink resumed>) = 0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... restart_syscall resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] lstat("./75/cgroup", [pid 5039] unlink("./70/cgroup.cpu" [pid 5559] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5558] close(7 [pid 5044] lstat("./79/binderfs", [pid 5559] <... symlink resumed>) = 0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5559] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5558] close(8 [pid 5045] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./79/binderfs" [pid 5559] <... symlink resumed>) = 0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5042] unlink("./75/cgroup" [pid 5039] umount2("./70/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5558] close(9 [pid 5045] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] umount2("./79/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5559] <... openat resumed>) = 3 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5559] write(3, "1000", 4 [pid 5558] close(10 [pid 5045] fstat(3, [pid 5044] lstat("./79/cgroup.net", [pid 5042] getdents64(3, [pid 5039] lstat("./70/cgroup", [pid 5559] <... write resumed>) = 4 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5559] close(3 [pid 5558] close(11 [pid 5045] getdents64(3, [pid 5044] unlink("./79/cgroup.net" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5559] <... close resumed>) = 0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... unlink resumed>) = 0 [pid 5559] read(200, [pid 5558] close(12 [pid 5045] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./79/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] close(3 [pid 5039] unlink("./70/cgroup" [pid 5559] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... close resumed>) = 0 [pid 5559] symlink("/dev/binderfs", "./binderfs" [pid 5558] close(13 [pid 5045] lstat("./81/binderfs", [pid 5044] lstat("./79/cgroup.cpu", [pid 5559] <... symlink resumed>) = 0 [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] rmdir("./75" [pid 5039] <... unlink resumed>) = 0 [pid 5559] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5558] close(14 [pid 5045] unlink("./81/binderfs" [pid 5044] unlink("./79/cgroup.cpu" [pid 5559] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... rmdir resumed>) = 0 [pid 5039] getdents64(3, [pid 5559] close(3 [pid 5558] close(15 [pid 5045] umount2("./81/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./79/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] mkdir("./76", 0777 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5559] close(4 [pid 5558] close(16 [pid 5045] lstat("./81/cgroup.net", [pid 5044] lstat("./79/cgroup", [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... mkdir resumed>) = 0 [pid 5039] close(3 [pid 5559] close(5 [pid 5558] close(17 [pid 5045] unlink("./81/cgroup.net" [pid 5044] unlink("./79/cgroup" [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... close resumed>) = 0 [pid 5559] close(6 [pid 5558] close(18 [pid 5045] umount2("./81/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] getdents64(3, [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5559] close(7 [pid 5558] close(19 [pid 5045] lstat("./81/cgroup.cpu", [pid 5044] close(3./strace-static-x86_64: Process 5560 attached [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... close resumed>) = 0 [pid 5039] rmdir("./70" [pid 5560] set_robust_list(0x555556f426e0, 24 [pid 5559] close(8 [pid 5558] close(20 [pid 5045] unlink("./81/cgroup.cpu" [pid 5044] rmdir("./79" [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 78 [pid 5039] <... rmdir resumed>) = 0 [pid 5560] <... set_robust_list resumed>) = 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5039] mkdir("./71", 0777 [pid 5559] close(9 [pid 5558] close(21 [pid 5045] umount2("./81/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] mkdir("./80", 0777 [pid 5039] <... mkdir resumed>) = 0 [pid 5560] chdir("./76" [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... mkdir resumed>) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5561 attached [pid 5560] <... chdir resumed>) = 0 [pid 5559] close(10 [pid 5558] close(22 [pid 5045] lstat("./81/cgroup", [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5561] set_robust_list(0x555556f426e0, 24 [pid 5560] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 ./strace-static-x86_64: Process 5562 attached [pid 5561] <... set_robust_list resumed>) = 0 [pid 5559] close(11 [pid 5558] close(23 [pid 5045] unlink("./81/cgroup" [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 73 [pid 5562] set_robust_list(0x555556f426e0, 24 [pid 5561] chdir("./71" [pid 5560] <... prctl resumed>) = 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 82 [pid 5562] <... set_robust_list resumed>) = 0 [pid 5561] <... chdir resumed>) = 0 [pid 5560] setpgid(0, 0 [pid 5559] close(12 [pid 5558] close(24 [pid 5045] getdents64(3, [pid 5562] chdir("./80" [pid 5561] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5560] <... setpgid resumed>) = 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5562] <... chdir resumed>) = 0 [pid 5561] <... prctl resumed>) = 0 [pid 5559] close(13 [pid 5558] close(25 [pid 5045] close(3 [pid 5562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5562] <... prctl resumed>) = 0 [pid 5561] setpgid(0, 0 [pid 5560] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5559] close(14 [pid 5558] close(26 [pid 5045] rmdir("./81" [pid 5562] setpgid(0, 0 [pid 5561] <... setpgid resumed>) = 0 [pid 5560] <... symlink resumed>) = 0 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5562] <... setpgid resumed>) = 0 [pid 5559] close(15 [pid 5558] close(27 [pid 5045] mkdir("./82", 0777 [pid 5562] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5561] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5560] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 [pid 5562] <... symlink resumed>) = 0 [pid 5561] <... symlink resumed>) = 0 [pid 5560] <... symlink resumed>) = 0 [pid 5559] close(16 [pid 5558] close(28 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5563 attached [pid 5562] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5561] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5560] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... symlink resumed>) = 0 [pid 5561] <... symlink resumed>) = 0 [pid 5560] <... symlink resumed>) = 0 [pid 5559] close(17 [pid 5558] close(29 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 84 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5563] set_robust_list(0x555556f426e0, 24 [pid 5562] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5561] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] <... set_robust_list resumed>) = 0 [pid 5562] <... symlink resumed>) = 0 [pid 5561] <... symlink resumed>) = 0 [pid 5560] <... openat resumed>) = 3 [pid 5559] close(18 [pid 5558] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5563] chdir("./82" [pid 5562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5560] write(3, "1000", 4 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... write resumed>) = 335 [pid 5563] <... chdir resumed>) = 0 [pid 5562] <... openat resumed>) = 3 [pid 5560] <... write resumed>) = 4 [pid 5561] <... openat resumed>) = 3 [pid 5559] close(19 [pid 5558] exit_group(0 [pid 5563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5562] write(3, "1000", 4 [pid 5561] write(3, "1000", 4 [pid 5560] close(3 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5558] <... exit_group resumed>) = ? [pid 5563] <... prctl resumed>) = 0 [pid 5562] <... write resumed>) = 4 [pid 5561] <... write resumed>) = 4 [pid 5560] <... close resumed>) = 0 [pid 5559] close(20 [pid 5558] +++ exited with 0 +++ [pid 5563] setpgid(0, 0 [pid 5561] close(3 [pid 5562] close(3 [pid 5560] read(200, [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5563] <... setpgid resumed>) = 0 [pid 5562] <... close resumed>) = 0 [pid 5561] <... close resumed>) = 0 [pid 5560] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5559] close(21 [pid 5563] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5562] read(200, [pid 5561] read(200, [pid 5560] symlink("/dev/binderfs", "./binderfs" [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] <... symlink resumed>) = 0 [pid 5562] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5561] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5560] <... symlink resumed>) = 0 [pid 5559] close(22 [pid 5043] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5562] symlink("/dev/binderfs", "./binderfs" [pid 5560] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5563] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5562] <... symlink resumed>) = 0 [pid 5561] symlink("/dev/binderfs", "./binderfs" [pid 5560] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(23 [pid 5043] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5563] <... symlink resumed>) = 0 [pid 5562] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5560] close(3 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... openat resumed>) = 3 [pid 5563] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5562] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... symlink resumed>) = 0 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(24 [pid 5043] fstat(3, [pid 5563] <... symlink resumed>) = 0 [pid 5562] close(3 [pid 5561] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5560] close(4 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(25 [pid 5043] getdents64(3, [pid 5563] <... openat resumed>) = 3 [pid 5562] close(4 [pid 5561] close(3 [pid 5560] close(5 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5563] write(3, "1000", 4 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(26 [pid 5043] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5562] close(5 [pid 5560] close(6 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(27 [pid 5043] lstat("./77/binderfs", [pid 5563] <... write resumed>) = 4 [pid 5562] close(6 [pid 5561] close(4 [pid 5560] close(7 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5563] close(3 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(28 [pid 5043] unlink("./77/binderfs" [pid 5563] <... close resumed>) = 0 [pid 5562] close(7 [pid 5561] close(5 [pid 5560] close(8 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5563] read(200, [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] close(29 [pid 5043] umount2("./77/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5562] close(8 [pid 5561] close(6 [pid 5560] close(9 [pid 5559] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5563] symlink("/dev/binderfs", "./binderfs" [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] lstat("./77/cgroup.net", [pid 5563] <... symlink resumed>) = 0 [pid 5562] close(9 [pid 5560] close(10 [pid 5559] <... write resumed>) = 335 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5559] exit_group(0 [pid 5043] unlink("./77/cgroup.net" [pid 5563] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5562] close(10 [pid 5561] close(7 [pid 5560] close(11 [pid 5559] <... exit_group resumed>) = ? [pid 5043] <... unlink resumed>) = 0 [pid 5563] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./77/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] close(3 [pid 5562] close(11 [pid 5561] close(8 [pid 5560] close(12 [pid 5559] +++ exited with 0 +++ [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./77/cgroup.cpu", [pid 5562] close(12 [pid 5560] close(13 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5563] close(4 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(9 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(13 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(14 [pid 5043] unlink("./77/cgroup.cpu" [pid 5040] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] close(5 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(10 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(14 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(15 [pid 5043] umount2("./77/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5563] close(6 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(11 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(15 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... openat resumed>) = 3 [pid 5563] close(7 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(12 [pid 5560] close(16 [pid 5043] lstat("./77/cgroup", [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] fstat(3, [pid 5563] close(8 [pid 5561] close(13 [pid 5562] close(16 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5563] close(9 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(14 [pid 5560] close(17 [pid 5043] unlink("./77/cgroup" [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] close(10 [pid 5562] close(17 [pid 5561] close(15 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5040] getdents64(3, [pid 5563] close(11 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(16 [pid 5560] close(18 [pid 5043] getdents64(3, [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] close(12 [pid 5561] close(17 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(18 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] close(13 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(18 [pid 5560] close(19 [pid 5043] close(3 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(19 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5563] close(14 [pid 5561] close(19 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... close resumed>) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(20 [pid 5043] rmdir("./77" [pid 5040] lstat("./74/binderfs", [pid 5563] close(15 [pid 5561] close(20 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(20 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] close(16 [pid 5561] close(21 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... rmdir resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5563] close(17 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(22 [pid 5560] close(21 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] close(18 [pid 5562] close(21 [pid 5561] close(23 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] mkdir("./78", 0777 [pid 5040] unlink("./74/binderfs" [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(22 [pid 5563] close(19 [pid 5561] close(24 [pid 5043] <... mkdir resumed>) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(22 [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5563] close(20 [pid 5561] close(25 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] close(21 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] close(26 [pid 5560] close(23 [pid 5040] umount2("./74/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5563] close(22 [pid 5562] close(23 [pid 5561] close(27 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5564 attached [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(24 [pid 5040] lstat("./74/cgroup.net", [pid 5564] set_robust_list(0x555556f426e0, 24 [pid 5563] close(23write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5562] close(24 [pid 5561] close(28 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 80 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5564] <... set_robust_list resumed>) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(25 [pid 5040] unlink("./74/cgroup.net" [pid 5564] chdir("./78" [pid 5563] close(24 [pid 5562] close(25 [pid 5561] close(29 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5564] <... chdir resumed>) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(26 [pid 5040] umount2("./74/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5564] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5563] close(25 [pid 5562] close(26 [pid 5561] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5564] <... prctl resumed>) = 0 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(27 [pid 5040] lstat("./74/cgroup.cpu", [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(27 [pid 5561] <... write resumed>) = 335 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5564] setpgid(0, 0 [pid 5563] close(26 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5561] exit_group(0 [pid 5560] close(28 [pid 5040] unlink("./74/cgroup.cpu" [pid 5564] <... setpgid resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] close(28 [pid 5561] <... exit_group resumed>) = ? [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... unlink resumed>) = 0 [pid 5564] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] close(29 [pid 5040] umount2("./74/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] close(27 [pid 5562] close(29 [pid 5560] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... symlink resumed>) = 0 [pid 5562] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5560] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] lstat("./74/cgroup", [pid 5564] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5563] close(28 [pid 5562] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5560] <... write resumed>) = 335 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5564] <... symlink resumed>) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5562] <... write resumed>) = 335 [pid 5560] exit_group(0 [pid 5040] unlink("./74/cgroup" [pid 5564] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5563] close(29 [pid 5562] exit_group(0 [pid 5561] +++ exited with 0 +++ [pid 5560] <... exit_group resumed>) = ? [pid 5040] <... unlink resumed>) = 0 [pid 5564] <... symlink resumed>) = 0 [pid 5563] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5562] <... exit_group resumed>) = ? [pid 5564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5563] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] getdents64(3, [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5564] <... openat resumed>) = 3 [pid 5563] <... write resumed>) = 335 [pid 5564] write(3, "1000", 4 [pid 5563] exit_group(0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5564] <... write resumed>) = 4 [pid 5563] <... exit_group resumed>) = ? [pid 5040] close(3 [pid 5564] close(3 [pid 5563] +++ exited with 0 +++ [pid 5562] +++ exited with 0 +++ [pid 5560] +++ exited with 0 +++ [pid 5040] <... close resumed>) = 0 [pid 5564] <... close resumed>) = 0 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5040] rmdir("./74" [pid 5039] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5564] read(200, [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5564] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] mkdir("./75", 0777 [pid 5039] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5564] symlink("/dev/binderfs", "./binderfs" [pid 5045] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... mkdir resumed>) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5564] <... symlink resumed>) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] fstat(3, ./strace-static-x86_64: Process 5565 attached [pid 5564] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5045] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... openat resumed>) = 3 [pid 5042] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5565] set_robust_list(0x555556f426e0, 24 [pid 5564] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] fstat(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 77 [pid 5039] getdents64(3, [pid 5565] <... set_robust_list resumed>) = 0 [pid 5564] close(3 [pid 5045] fstat(3, [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5565] chdir("./75" [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] getdents64(3, [pid 5039] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5565] <... chdir resumed>) = 0 [pid 5564] close(4 [pid 5045] getdents64(3, [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] <... openat resumed>) = 3 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5565] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./71/binderfs", [pid 5565] <... prctl resumed>) = 0 [pid 5045] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5565] setpgid(0, 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./80/binderfs", [pid 5039] unlink("./71/binderfs" [pid 5565] <... setpgid resumed>) = 0 [pid 5045] lstat("./82/binderfs", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5565] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] unlink("./80/binderfs" [pid 5039] umount2("./71/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5565] <... symlink resumed>) = 0 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./82/binderfs" [pid 5044] <... unlink resumed>) = 0 [pid 5042] fstat(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5565] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5564] close(5 [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./80/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./71/cgroup.net", [pid 5565] <... symlink resumed>) = 0 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./82/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5565] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5564] close(6 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./80/cgroup.net", [pid 5039] unlink("./71/cgroup.net" [pid 5565] <... symlink resumed>) = 0 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./82/cgroup.net", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] getdents64(3, [pid 5039] <... unlink resumed>) = 0 [pid 5565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5564] close(7 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] unlink("./80/cgroup.net" [pid 5039] umount2("./71/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5565] <... openat resumed>) = 3 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./82/cgroup.net" [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5565] write(3, "1000", 4 [pid 5564] close(8 [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./80/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./71/cgroup.cpu", [pid 5565] <... write resumed>) = 4 [pid 5045] umount2("./82/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5565] close(3 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./80/cgroup.cpu", [pid 5042] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./71/cgroup.cpu" [pid 5565] <... close resumed>) = 0 [pid 5564] close(9 [pid 5045] lstat("./82/cgroup.cpu", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5565] read(200, [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] unlink("./80/cgroup.cpu" [pid 5042] lstat("./76/binderfs", [pid 5039] umount2("./71/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5565] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5564] close(10 [pid 5045] unlink("./82/cgroup.cpu" [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5565] symlink("/dev/binderfs", "./binderfs" [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./80/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] unlink("./76/binderfs" [pid 5039] lstat("./71/cgroup", [pid 5565] <... symlink resumed>) = 0 [pid 5564] close(11 [pid 5045] umount2("./82/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5565] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./80/cgroup", [pid 5042] umount2("./76/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./71/cgroup" [pid 5565] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(12 [pid 5045] lstat("./82/cgroup", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5565] close(3 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] unlink("./80/cgroup" [pid 5042] lstat("./76/cgroup.net", [pid 5039] getdents64(3, [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(13 [pid 5045] unlink("./82/cgroup" [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5565] close(4 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5042] unlink("./76/cgroup.net" [pid 5039] close(3 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(14 [pid 5045] getdents64(3, [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... close resumed>) = 0 [pid 5565] close(5 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] close(3 [pid 5042] umount2("./76/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] rmdir("./71" [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] <... close resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... rmdir resumed>) = 0 [pid 5565] close(6 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5044] rmdir("./80" [pid 5042] lstat("./76/cgroup.cpu", [pid 5039] mkdir("./72", 0777 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(15 [pid 5045] rmdir("./82" [pid 5044] <... rmdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5565] close(7 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5044] mkdir("./81", 0777 [pid 5042] unlink("./76/cgroup.cpu" [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5566 attached [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(16 [pid 5045] mkdir("./83", 0777 [pid 5044] <... mkdir resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5566] set_robust_list(0x555556f426e0, 24 [pid 5565] close(8 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] umount2("./76/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5566] <... set_robust_list resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(17 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 74 ./strace-static-x86_64: Process 5568 attached ./strace-static-x86_64: Process 5567 attached [pid 5566] chdir("./72" [pid 5565] close(9 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 83 [pid 5042] lstat("./76/cgroup", [pid 5568] set_robust_list(0x555556f426e0, 24 [pid 5567] set_robust_list(0x555556f426e0, 24 [pid 5566] <... chdir resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(18 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 85 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5568] <... set_robust_list resumed>) = 0 [pid 5567] <... set_robust_list resumed>) = 0 [pid 5566] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5565] close(10 [pid 5042] unlink("./76/cgroup" [pid 5567] chdir("./81" [pid 5566] <... prctl resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5567] <... chdir resumed>) = 0 [pid 5566] setpgid(0, 0 [pid 5565] close(11 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5568] chdir("./83" [pid 5567] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5566] <... setpgid resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(19 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5568] <... chdir resumed>) = 0 [pid 5567] <... prctl resumed>) = 0 [pid 5566] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5565] close(12 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5567] setpgid(0, 0 [pid 5566] <... symlink resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(20 [pid 5042] <... close resumed>) = 0 [pid 5568] <... prctl resumed>) = 0 [pid 5567] <... setpgid resumed>) = 0 [pid 5566] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5565] close(13 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./76" [pid 5568] setpgid(0, 0 [pid 5567] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5566] <... symlink resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(21 [pid 5042] <... rmdir resumed>) = 0 [pid 5568] <... setpgid resumed>) = 0 [pid 5567] <... symlink resumed>) = 0 [pid 5566] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5565] close(14 [pid 5042] mkdir("./77", 0777 [pid 5567] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5566] <... symlink resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5568] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5567] <... symlink resumed>) = 0 [pid 5566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5565] close(15 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5568] <... symlink resumed>) = 0 [pid 5567] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5566] <... openat resumed>) = 3 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(22./strace-static-x86_64: Process 5569 attached [pid 5568] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5567] <... symlink resumed>) = 0 [pid 5566] write(3, "1000", 4 [pid 5565] close(16 [pid 5569] set_robust_list(0x555556f426e0, 24 [pid 5567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5566] <... write resumed>) = 4 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 79 [pid 5569] <... set_robust_list resumed>) = 0 [pid 5567] <... openat resumed>) = 3 [pid 5566] close(3 [pid 5565] close(17 [pid 5569] chdir("./77" [pid 5568] <... symlink resumed>) = 0 [pid 5567] write(3, "1000", 4 [pid 5566] <... close resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(23 [pid 5569] <... chdir resumed>) = 0 [pid 5568] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5567] <... write resumed>) = 4 [pid 5566] read(200, [pid 5565] close(18 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5568] <... symlink resumed>) = 0 [pid 5567] close(3 [pid 5566] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(24 [pid 5569] <... prctl resumed>) = 0 [pid 5568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5567] <... close resumed>) = 0 [pid 5566] symlink("/dev/binderfs", "./binderfs" [pid 5565] close(19 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] setpgid(0, 0 [pid 5568] <... openat resumed>) = 3 [pid 5567] read(200, [pid 5566] <... symlink resumed>) = 0 [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] <... setpgid resumed>) = 0 [pid 5568] write(3, "1000", 4 [pid 5567] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5566] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5565] close(20 [pid 5564] close(25 [pid 5569] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5568] <... write resumed>) = 4 [pid 5567] symlink("/dev/binderfs", "./binderfs" [pid 5566] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] <... symlink resumed>) = 0 [pid 5568] close(3 [pid 5567] <... symlink resumed>) = 0 [pid 5566] close(3 [pid 5565] close(21 [pid 5564] close(26 [pid 5569] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5567] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] <... symlink resumed>) = 0 [pid 5568] <... close resumed>) = 0 [pid 5567] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(4 [pid 5565] close(22 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5568] read(200, [pid 5567] close(3 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(27 [pid 5569] <... symlink resumed>) = 0 [pid 5568] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(5 [pid 5565] close(23 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5568] symlink("/dev/binderfs", "./binderfs" [pid 5567] close(4 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(28 [pid 5569] <... openat resumed>) = 3 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] <... symlink resumed>) = 0 [pid 5566] close(6 [pid 5565] close(24 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] write(3, "1000", 4 [pid 5568] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5567] close(5 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] close(29 [pid 5569] <... write resumed>) = 4 [pid 5568] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(7 [pid 5565] close(25 [pid 5564] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5569] close(3 [pid 5568] close(3 [pid 5567] close(6 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5569] <... close resumed>) = 0 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(8 [pid 5565] close(26 [pid 5569] read(200, [pid 5567] close(7 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(9 [pid 5565] close(27 [pid 5564] <... write resumed>) = 335 [pid 5569] symlink("/dev/binderfs", "./binderfs" [pid 5568] close(4 [pid 5567] close(8 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] exit_group(0 [pid 5569] <... symlink resumed>) = 0 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(10 [pid 5565] close(28 [pid 5569] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5568] close(5 [pid 5567] close(9 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(11 [pid 5565] close(29 [pid 5564] <... exit_group resumed>) = ? [pid 5569] close(3write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5568] close(6 [pid 5567] close(10 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5564] +++ exited with 0 +++ [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(12 [pid 5569] close(4 [pid 5568] close(7 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5567] close(11 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(8) = -1 EBADF (Bad file descriptor) [pid 5568] close(9) = -1 EBADF (Bad file descriptor) [pid 5568] close(10) = -1 EBADF (Bad file descriptor) [pid 5568] close(11) = -1 EBADF (Bad file descriptor) [pid 5568] close(12 [pid 5566] close(13 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5565] <... write resumed>) = 335 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(13 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(14) = -1 EBADF (Bad file descriptor) [pid 5567] close(12 [pid 5043] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] close(5 [pid 5568] close(15 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(14 [pid 5565] exit_group(0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] close(13 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5568] close(16 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(15 [pid 5565] <... exit_group resumed>) = ? [pid 5569] close(6 [pid 5568] close(17 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... openat resumed>) = 3 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(18) = -1 EBADF (Bad file descriptor) [pid 5568] close(19) = -1 EBADF (Bad file descriptor) [pid 5568] close(20) = -1 EBADF (Bad file descriptor) [pid 5568] close(21) = -1 EBADF (Bad file descriptor) [pid 5568] close(22) = -1 EBADF (Bad file descriptor) [pid 5567] close(14 [pid 5566] close(16 [pid 5043] fstat(3, [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(23 [pid 5565] +++ exited with 0 +++ [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5569] close(7 [pid 5568] close(24 [pid 5567] close(15 [pid 5566] close(17 [pid 5043] getdents64(3, [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(25) = -1 EBADF (Bad file descriptor) [pid 5568] close(26) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] close(8 [pid 5568] close(27 [pid 5567] close(16 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(18 [pid 5043] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] close(9 [pid 5568] close(28 [pid 5567] close(17 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] close(29 [pid 5567] close(18 [pid 5566] close(19 [pid 5043] lstat("./78/binderfs", [pid 5040] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5569] close(10 [pid 5568] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5567] close(19 [pid 5569] close(11 [pid 5568] <... write resumed>) = 335 [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(20 [pid 5043] unlink("./78/binderfs" [pid 5040] fstat(3, [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5568] exit_group(0 [pid 5567] close(20 [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5569] close(12 [pid 5568] <... exit_group resumed>) = ? [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] close(21 [pid 5043] umount2("./78/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] getdents64(3, [pid 5567] close(21 [pid 5569] close(13 [pid 5566] close(22 [pid 5043] lstat("./78/cgroup.net", [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5568] +++ exited with 0 +++ [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5569] close(14 [pid 5567] close(22 [pid 5566] close(23 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] unlink("./78/cgroup.net" [pid 5040] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5569] close(15 [pid 5567] close(23 [pid 5566] close(24 [pid 5043] umount2("./78/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] close(16 [pid 5567] close(24 [pid 5566] close(25 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./78/cgroup.cpu", [pid 5040] lstat("./75/binderfs", [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5569] close(17 [pid 5567] close(25 [pid 5566] close(26 [pid 5045] <... openat resumed>) = 3 [pid 5043] unlink("./78/cgroup.cpu" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5043] <... unlink resumed>) = 0 [pid 5569] close(18 [pid 5567] close(26 [pid 5566] close(27 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] umount2("./78/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] unlink("./75/binderfs" [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5569] close(19 [pid 5567] close(27 [pid 5566] close(28 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] lstat("./78/cgroup", [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] umount2("./75/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] close(20 [pid 5567] close(28 [pid 5566] close(29 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./78/cgroup" [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./83/binderfs", [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] close(21 [pid 5567] close(29 [pid 5566] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] getdents64(3, [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5566] <... write resumed>) = 335 [pid 5045] unlink("./83/binderfs" [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] lstat("./75/cgroup.net", [pid 5569] close(22 [pid 5567] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5566] exit_group(0 [pid 5045] <... unlink resumed>) = 0 [pid 5043] close(3 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... write resumed>) = 335 [pid 5566] <... exit_group resumed>) = ? [pid 5045] umount2("./83/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... close resumed>) = 0 [pid 5569] close(23 [pid 5567] exit_group(0 [pid 5566] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] rmdir("./78" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5567] <... exit_group resumed>) = ? [pid 5045] lstat("./83/cgroup.net", [pid 5043] <... rmdir resumed>) = 0 [pid 5040] unlink("./75/cgroup.net" [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5569] close(24 [pid 5567] +++ exited with 0 +++ [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] mkdir("./79", 0777 [pid 5040] <... unlink resumed>) = 0 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5569] close(25 [pid 5045] unlink("./83/cgroup.net" [pid 5043] <... mkdir resumed>) = 0 [pid 5040] umount2("./75/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] close(26 [pid 5045] umount2("./83/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./75/cgroup.cpu", [pid 5569] close(27 [pid 5039] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] lstat("./83/cgroup.cpu", [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] close(28 [pid 5045] unlink("./83/cgroup.cpu" [pid 5044] <... restart_syscall resumed>) = 0 [pid 5040] unlink("./75/cgroup.cpu" [pid 5039] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5570 attached [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5569] close(29 [pid 5045] umount2("./83/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./75/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] fstat(3, [pid 5570] set_robust_list(0x555556f426e0, 24 [pid 5569] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 81 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5570] <... set_robust_list resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5569] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] lstat("./83/cgroup", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./75/cgroup", [pid 5039] getdents64(3, [pid 5570] chdir("./79" [pid 5569] <... write resumed>) = 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5569] exit_group(0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5570] <... chdir resumed>) = 0 [pid 5569] <... exit_group resumed>) = ? [pid 5045] unlink("./83/cgroup" [pid 5044] <... openat resumed>) = 3 [pid 5040] unlink("./75/cgroup" [pid 5039] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5569] +++ exited with 0 +++ [pid 5045] <... unlink resumed>) = 0 [pid 5044] fstat(3, [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5570] <... prctl resumed>) = 0 [pid 5045] getdents64(3, [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] getdents64(3, [pid 5039] lstat("./72/binderfs", [pid 5570] setpgid(0, 0 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] getdents64(3, [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5570] <... setpgid resumed>) = 0 [pid 5045] close(3 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] close(3 [pid 5039] unlink("./72/binderfs" [pid 5570] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5045] <... close resumed>) = 0 [pid 5044] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... close resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5570] <... symlink resumed>) = 0 [pid 5045] rmdir("./83" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] rmdir("./75" [pid 5039] umount2("./72/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5045] <... rmdir resumed>) = 0 [pid 5044] lstat("./81/binderfs", [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5570] <... symlink resumed>) = 0 [pid 5045] mkdir("./84", 0777 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] mkdir("./76", 0777 [pid 5039] lstat("./72/cgroup.net", [pid 5570] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5045] <... mkdir resumed>) = 0 [pid 5044] unlink("./81/binderfs" [pid 5040] <... mkdir resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5570] <... symlink resumed>) = 0 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... unlink resumed>) = 0 [pid 5042] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] unlink("./72/cgroup.net"./strace-static-x86_64: Process 5572 attached ./strace-static-x86_64: Process 5571 attached [pid 5570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] umount2("./81/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5571] set_robust_list(0x555556f426e0, 24) = 0 [pid 5570] <... openat resumed>) = 3 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5572] set_robust_list(0x555556f426e0, 24 [pid 5571] chdir("./84" [pid 5570] write(3, "1000", 4 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 86 [pid 5044] lstat("./81/cgroup.net", [pid 5042] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 78 [pid 5039] umount2("./72/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5572] <... set_robust_list resumed>) = 0 [pid 5571] <... chdir resumed>) = 0 [pid 5570] <... write resumed>) = 4 [pid 5572] chdir("./76" [pid 5571] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5570] close(3 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5572] <... chdir resumed>) = 0 [pid 5571] <... prctl resumed>) = 0 [pid 5570] <... close resumed>) = 0 [pid 5044] unlink("./81/cgroup.net" [pid 5572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5571] setpgid(0, 0 [pid 5042] fstat(3, [pid 5039] lstat("./72/cgroup.cpu", [pid 5572] <... prctl resumed>) = 0 [pid 5571] <... setpgid resumed>) = 0 [pid 5570] read(200, [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5572] setpgid(0, 0 [pid 5571] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5570] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] umount2("./81/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] getdents64(3, [pid 5039] unlink("./72/cgroup.cpu" [pid 5572] <... setpgid resumed>) = 0 [pid 5571] <... symlink resumed>) = 0 [pid 5570] symlink("/dev/binderfs", "./binderfs" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... unlink resumed>) = 0 [pid 5572] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5571] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5570] <... symlink resumed>) = 0 [pid 5044] lstat("./81/cgroup.cpu", [pid 5042] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./72/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5572] <... symlink resumed>) = 0 [pid 5571] <... symlink resumed>) = 0 [pid 5570] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5572] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5571] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5570] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./81/cgroup.cpu" [pid 5042] lstat("./77/binderfs", [pid 5039] lstat("./72/cgroup", [pid 5572] <... symlink resumed>) = 0 [pid 5571] <... symlink resumed>) = 0 [pid 5570] close(3 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5572] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./81/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] unlink("./77/binderfs" [pid 5571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] unlink("./72/cgroup" [pid 5572] <... symlink resumed>) = 0 [pid 5570] close(4 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5571] <... openat resumed>) = 3 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] lstat("./81/cgroup", [pid 5042] umount2("./77/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] getdents64(3, [pid 5572] <... openat resumed>) = 3 [pid 5571] write(3, "1000", 4 [pid 5570] close(5 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5572] write(3, "1000", 4 [pid 5571] <... write resumed>) = 4 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./81/cgroup" [pid 5042] lstat("./77/cgroup.net", [pid 5039] close(3 [pid 5572] <... write resumed>) = 4 [pid 5571] close(3 [pid 5570] close(6 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... close resumed>) = 0 [pid 5572] close(3 [pid 5571] <... close resumed>) = 0 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5042] unlink("./77/cgroup.net" [pid 5039] rmdir("./72" [pid 5572] <... close resumed>) = 0 [pid 5571] read(200, [pid 5570] close(7 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... rmdir resumed>) = 0 [pid 5572] read(200, [pid 5571] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5042] umount2("./77/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] mkdir("./73", 0777 [pid 5572] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5571] symlink("/dev/binderfs", "./binderfs" [pid 5570] close(8 [pid 5044] <... close resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... mkdir resumed>) = 0 [pid 5572] symlink("/dev/binderfs", "./binderfs" [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] rmdir("./81" [pid 5042] lstat("./77/cgroup.cpu", [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5572] <... symlink resumed>) = 0 [pid 5571] <... symlink resumed>) = 0 [pid 5570] close(9 [pid 5044] <... rmdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5572] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5571] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775) = -1 EBADF (Bad file descriptor) [pid 5572] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(3 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] mkdir("./82", 0777 [pid 5042] unlink("./77/cgroup.cpu"./strace-static-x86_64: Process 5573 attached [pid 5572] close(3 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] set_robust_list(0x555556f426e0, 24 [pid 5571] close(4 [pid 5570] close(10 [pid 5044] <... mkdir resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5573] <... set_robust_list resumed>) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 75 [pid 5573] chdir("./73" [pid 5572] close(4 [pid 5571] close(5 [pid 5570] close(11 [pid 5042] umount2("./77/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5573] <... chdir resumed>) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5574 attached [pid 5573] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5572] close(5 [pid 5571] close(6 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5573] <... prctl resumed>) = 0 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(12 [pid 5042] lstat("./77/cgroup", [pid 5574] set_robust_list(0x555556f426e0, 24 [pid 5573] setpgid(0, 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(7 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 84 [pid 5574] <... set_robust_list resumed>) = 0 [pid 5573] <... setpgid resumed>) = 0 [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5574] chdir("./82" [pid 5573] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5572] close(6 [pid 5571] close(8 [pid 5570] close(13 [pid 5042] unlink("./77/cgroup" [pid 5574] <... chdir resumed>) = 0 [pid 5573] <... symlink resumed>) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5573] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5572] close(7 [pid 5571] close(9 [pid 5574] <... prctl resumed>) = 0 [pid 5573] <... symlink resumed>) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(14 [pid 5042] getdents64(3, [pid 5573] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5572] close(8 [pid 5571] close(10 [pid 5574] setpgid(0, 0 [pid 5573] <... symlink resumed>) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5574] <... setpgid resumed>) = 0 [pid 5573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5572] close(9 [pid 5571] close(11 [pid 5570] close(15 [pid 5042] close(3 [pid 5574] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5573] <... openat resumed>) = 3 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5574] <... symlink resumed>) = 0 [pid 5573] write(3, "1000", 4 [pid 5572] close(10 [pid 5571] close(12 [pid 5570] close(16 [pid 5042] rmdir("./77" [pid 5574] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5573] <... write resumed>) = 4 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... rmdir resumed>) = 0 [pid 5574] <... symlink resumed>) = 0 [pid 5573] close(3 [pid 5572] close(11 [pid 5571] close(13 [pid 5570] close(17 [pid 5042] mkdir("./78", 0777 [pid 5574] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5573] <... close resumed>) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5574] <... symlink resumed>) = 0 [pid 5573] read(200, [pid 5572] close(12 [pid 5571] close(14 [pid 5574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5573] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(18 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5575 attached [pid 5574] <... openat resumed>) = 3 [pid 5573] symlink("/dev/binderfs", "./binderfs" [pid 5572] close(13 [pid 5571] close(15 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] set_robust_list(0x555556f426e0, 24 [pid 5574] write(3, "1000", 4 [pid 5573] <... symlink resumed>) = 0 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(19 [pid 5575] <... set_robust_list resumed>) = 0 [pid 5574] <... write resumed>) = 4 [pid 5573] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5572] close(14 [pid 5571] close(16 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 80 [pid 5575] chdir("./78" [pid 5574] close(3 [pid 5573] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(20 [pid 5575] <... chdir resumed>) = 0 [pid 5574] <... close resumed>) = 0 [pid 5573] close(3 [pid 5572] close(15 [pid 5571] close(17 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5574] read(200, [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(21 [pid 5575] <... prctl resumed>) = 0 [pid 5574] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5573] close(4 [pid 5572] close(16 [pid 5571] close(18 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] setpgid(0, 0 [pid 5574] symlink("/dev/binderfs", "./binderfs" [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(22 [pid 5575] <... setpgid resumed>) = 0 [pid 5574] <... symlink resumed>) = 0 [pid 5573] close(5 [pid 5572] close(17 [pid 5571] close(19 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5574] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(23 [pid 5575] <... symlink resumed>) = 0 [pid 5574] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(6 [pid 5572] close(18 [pid 5571] close(20 [pid 5575] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5574] close(3 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] <... symlink resumed>) = 0 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(7 [pid 5570] close(24 [pid 5575] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5574] close(4 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(19 [pid 5571] close(21 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(8 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(25 [pid 5575] <... symlink resumed>) = 0 [pid 5574] close(5 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(20 [pid 5571] close(22 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(9 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(26 [pid 5575] <... openat resumed>) = 3 [pid 5574] close(6 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(21 [pid 5571] close(23 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] write(3, "1000", 4 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(10 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(27 [pid 5575] <... write resumed>) = 4 [pid 5574] close(7 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(22 [pid 5571] close(24 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(3 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(11 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(28 [pid 5575] <... close resumed>) = 0 [pid 5574] close(8 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] close(25 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(23 [pid 5575] read(200, [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(12 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] close(29 [pid 5575] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5574] close(9 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(24 [pid 5571] close(26 [pid 5570] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5575] symlink("/dev/binderfs", "./binderfs" [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(13 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5574] close(10 [pid 5570] <... write resumed>) = 335 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5570] exit_group(0 [pid 5575] <... symlink resumed>) = 0 [pid 5574] close(11 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(25 [pid 5571] close(27 [pid 5570] <... exit_group resumed>) = ? [pid 5575] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(14 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] close(12 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(26 [pid 5570] +++ exited with 0 +++ [pid 5571] close(28 [pid 5575] close(3 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(15 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] close(13 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(27 [pid 5571] close(29 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] close(14 [pid 5575] close(4 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(16 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] close(15 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(28 [pid 5571] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5575] close(5 [pid 5574] close(16 [pid 5573] close(17 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5571] <... write resumed>) = 335 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] close(29 [pid 5571] exit_group(0 [pid 5043] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5575] close(6 [pid 5574] close(17 [pid 5573] close(18 [pid 5572] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5571] <... exit_group resumed>) = ? [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5571] +++ exited with 0 +++ [pid 5043] <... openat resumed>) = 3 [pid 5574] close(18 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] fstat(3, [pid 5575] close(7 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(19 [pid 5572] <... write resumed>) = 335 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] close(19 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] exit_group(0 [pid 5043] getdents64(3, [pid 5575] close(8 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(20 [pid 5572] <... exit_group resumed>) = ? [pid 5045] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] close(20 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5572] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] close(9 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(21 [pid 5043] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] close(10 [pid 5574] close(21 [pid 5573] close(22 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(11 [pid 5573] close(23 [pid 5045] <... openat resumed>) = 3 [pid 5043] lstat("./79/binderfs", [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5575] close(12 [pid 5574] close(22 [pid 5573] close(24 [pid 5045] fstat(3, [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(13 [pid 5573] close(25 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] close(14 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] close(26write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5043] unlink("./79/binderfs" [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] close(23 [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5575] close(15 [pid 5573] close(27 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(16 [pid 5573] close(28 [pid 5043] <... unlink resumed>) = 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5575] close(17 [pid 5573] close(29 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(18 [pid 5573] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... write resumed>) = 335 [pid 5575] close(19 [pid 5574] close(24 [pid 5573] exit_group(0 [pid 5043] umount2("./79/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] <... exit_group resumed>) = ? [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... openat resumed>) = 3 [pid 5575] close(20 [pid 5574] close(25 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] fstat(3, [pid 5575] close(21 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./79/cgroup.net", [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] close(22 [pid 5574] close(26 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(23 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5573] +++ exited with 0 +++ [pid 5045] lstat("./84/binderfs", [pid 5043] unlink("./79/cgroup.net" [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] close(27 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] getdents64(3, [pid 5575] close(24) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5575] close(25 [pid 5574] close(28 [pid 5045] unlink("./84/binderfs" [pid 5043] umount2("./79/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] close(26 [pid 5574] close(29 [pid 5045] umount2("./84/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./79/cgroup.cpu", [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5575] close(27 [pid 5574] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5045] lstat("./84/cgroup.net", [pid 5043] unlink("./79/cgroup.cpu" [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... write resumed>) = 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] close(28 [pid 5574] exit_group(0 [pid 5045] unlink("./84/cgroup.net" [pid 5043] umount2("./79/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./76/binderfs", [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5574] <... exit_group resumed>) = ? [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5575] close(29 [pid 5574] +++ exited with 0 +++ [pid 5045] umount2("./84/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./79/cgroup", write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5575] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5575] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] lstat("./84/cgroup.cpu", [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] unlink("./79/cgroup" [pid 5575] <... write resumed>) = 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5040] unlink("./76/binderfs" [pid 5039] fstat(3, [pid 5575] exit_group(0 [pid 5045] unlink("./84/cgroup.cpu" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] getdents64(3, [pid 5575] <... exit_group resumed>) = ? [pid 5045] <... unlink resumed>) = 0 [pid 5044] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5575] +++ exited with 0 +++ [pid 5045] umount2("./84/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... openat resumed>) = 3 [pid 5043] close(3 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] fstat(3, [pid 5043] <... close resumed>) = 0 [pid 5040] umount2("./76/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] getdents64(3, [pid 5045] lstat("./84/cgroup", [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] rmdir("./79" [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] getdents64(3, [pid 5043] <... rmdir resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5045] unlink("./84/cgroup" [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] mkdir("./80", 0777 [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... mkdir resumed>) = 0 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5040] lstat("./76/cgroup.net", [pid 5039] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5576 attached [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] lstat("./82/binderfs", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5576] set_robust_list(0x555556f426e0, 24 [pid 5045] close(3 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] unlink("./76/cgroup.net" [pid 5039] lstat("./73/binderfs", [pid 5576] <... set_robust_list resumed>) = 0 [pid 5045] <... close resumed>) = 0 [pid 5044] unlink("./82/binderfs" [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 82 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5576] chdir("./80" [pid 5045] rmdir("./84" [pid 5044] <... unlink resumed>) = 0 [pid 5042] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./76/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./73/binderfs" [pid 5576] <... chdir resumed>) = 0 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] umount2("./82/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5576] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5045] mkdir("./85", 0777 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] lstat("./76/cgroup.cpu", [pid 5576] <... prctl resumed>) = 0 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] lstat("./82/cgroup.net", [pid 5042] <... openat resumed>) = 3 [pid 5039] umount2("./73/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5576] setpgid(0, 0 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] fstat(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5576] <... setpgid resumed>) = 0 [pid 5040] unlink("./76/cgroup.cpu" [pid 5039] lstat("./73/cgroup.net", ./strace-static-x86_64: Process 5577 attached [pid 5576] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5044] unlink("./82/cgroup.net" [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5577] set_robust_list(0x555556f426e0, 24 [pid 5576] <... symlink resumed>) = 0 [pid 5040] umount2("./76/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./73/cgroup.net" [pid 5577] <... set_robust_list resumed>) = 0 [pid 5576] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 87 [pid 5044] <... unlink resumed>) = 0 [pid 5042] getdents64(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5577] chdir("./85" [pid 5576] <... symlink resumed>) = 0 [pid 5044] umount2("./82/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] lstat("./76/cgroup", [pid 5039] <... unlink resumed>) = 0 [pid 5577] <... chdir resumed>) = 0 [pid 5576] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5577] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] lstat("./82/cgroup.cpu", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] umount2("./73/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5577] <... prctl resumed>) = 0 [pid 5576] <... symlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] lstat("./78/binderfs", [pid 5040] unlink("./76/cgroup" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5577] setpgid(0, 0 [pid 5576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] unlink("./82/cgroup.cpu" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] lstat("./73/cgroup.cpu", [pid 5577] <... setpgid resumed>) = 0 [pid 5576] <... openat resumed>) = 3 [pid 5044] <... unlink resumed>) = 0 [pid 5042] unlink("./78/binderfs" [pid 5040] getdents64(3, [pid 5577] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5576] write(3, "1000", 4 [pid 5044] umount2("./82/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5577] <... symlink resumed>) = 0 [pid 5576] <... write resumed>) = 4 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] unlink("./73/cgroup.cpu" [pid 5576] close(3 [pid 5040] close(3 [pid 5039] <... unlink resumed>) = 0 [pid 5577] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5576] <... close resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./78/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... close resumed>) = 0 [pid 5039] umount2("./73/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5577] <... symlink resumed>) = 0 [pid 5576] read(200, [pid 5044] lstat("./82/cgroup", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5577] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5576] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] lstat("./78/cgroup.net", [pid 5040] rmdir("./76" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5577] <... symlink resumed>) = 0 [pid 5576] symlink("/dev/binderfs", "./binderfs" [pid 5044] unlink("./82/cgroup" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... rmdir resumed>) = 0 [pid 5039] lstat("./73/cgroup", [pid 5577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5576] <... symlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] unlink("./78/cgroup.net" [pid 5040] mkdir("./77", 0777 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5577] <... openat resumed>) = 3 [pid 5576] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5044] getdents64(3, [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... mkdir resumed>) = 0 [pid 5039] unlink("./73/cgroup" [pid 5577] write(3, "1000", 4 [pid 5576] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] umount2("./78/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5578 attached [pid 5577] <... write resumed>) = 4 [pid 5576] close(3 [pid 5044] close(3 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] getdents64(3, [pid 5578] set_robust_list(0x555556f426e0, 24 [pid 5577] close(3 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... close resumed>) = 0 [pid 5042] lstat("./78/cgroup.cpu", [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 79 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5578] <... set_robust_list resumed>) = 0 [pid 5577] <... close resumed>) = 0 [pid 5576] close(4 [pid 5044] rmdir("./82" [pid 5039] close(3 [pid 5578] chdir("./77" [pid 5577] read(200, [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... rmdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... close resumed>) = 0 [pid 5578] <... chdir resumed>) = 0 [pid 5577] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5576] close(5 [pid 5044] mkdir("./83", 0777 [pid 5042] unlink("./78/cgroup.cpu" [pid 5039] rmdir("./73" [pid 5578] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5577] symlink("/dev/binderfs", "./binderfs" [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... mkdir resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... rmdir resumed>) = 0 [pid 5578] <... prctl resumed>) = 0 [pid 5577] <... symlink resumed>) = 0 [pid 5576] close(6 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] umount2("./78/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] mkdir("./74", 0777./strace-static-x86_64: Process 5579 attached [pid 5578] setpgid(0, 0 [pid 5577] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... mkdir resumed>) = 0 [pid 5579] set_robust_list(0x555556f426e0, 24 [pid 5578] <... setpgid resumed>) = 0 [pid 5577] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(7 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 85 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5579] <... set_robust_list resumed>) = 0 [pid 5578] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5577] close(3 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./78/cgroup", ./strace-static-x86_64: Process 5580 attached [pid 5579] chdir("./83" [pid 5578] <... symlink resumed>) = 0 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(8 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5579] <... chdir resumed>) = 0 [pid 5578] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5577] close(4 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./78/cgroup" [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 76 [pid 5580] set_robust_list(0x555556f426e0, 24 [pid 5579] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5578] <... symlink resumed>) = 0 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(9 [pid 5042] <... unlink resumed>) = 0 [pid 5579] <... prctl resumed>) = 0 [pid 5578] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5577] close(5 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5580] <... set_robust_list resumed>) = 0 [pid 5579] setpgid(0, 0 [pid 5578] <... symlink resumed>) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5580] chdir("./74" [pid 5579] <... setpgid resumed>) = 0 [pid 5578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(10 [pid 5042] close(3 [pid 5580] <... chdir resumed>) = 0 [pid 5579] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5578] <... openat resumed>) = 3 [pid 5577] close(6 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5579] <... symlink resumed>) = 0 [pid 5578] write(3, "1000", 4 [pid 5042] <... close resumed>) = 0 [pid 5580] <... prctl resumed>) = 0 [pid 5579] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5578] <... write resumed>) = 4 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(11 [pid 5580] setpgid(0, 0 [pid 5579] <... symlink resumed>) = 0 [pid 5578] close(3 [pid 5577] close(7 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./78" [pid 5580] <... setpgid resumed>) = 0 [pid 5579] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5042] <... rmdir resumed>) = 0 [pid 5578] <... close resumed>) = 0 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(12 [pid 5042] mkdir("./79", 0777 [pid 5580] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5579] <... symlink resumed>) = 0 [pid 5578] read(200, [pid 5577] close(8 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5580] <... symlink resumed>) = 0 [pid 5579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5578] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(13 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5581 attached [pid 5580] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5579] <... openat resumed>) = 3 [pid 5578] symlink("/dev/binderfs", "./binderfs" [pid 5577] close(9 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] set_robust_list(0x555556f426e0, 24 [pid 5580] <... symlink resumed>) = 0 [pid 5581] <... set_robust_list resumed>) = 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 81 [pid 5581] chdir("./79" [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(14 [pid 5581] <... chdir resumed>) = 0 [pid 5580] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5579] write(3, "1000", 4 [pid 5578] <... symlink resumed>) = 0 [pid 5577] close(10 [pid 5581] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... prctl resumed>) = 0 [pid 5580] <... symlink resumed>) = 0 [pid 5579] <... write resumed>) = 4 [pid 5578] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(15 [pid 5581] setpgid(0, 0) = 0 [pid 5580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5577] close(11 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] close(3 [pid 5581] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5578] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... symlink resumed>) = 0 [pid 5580] <... openat resumed>) = 3 [pid 5579] <... close resumed>) = 0 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(16 [pid 5581] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5580] write(3, "1000", 4 [pid 5579] read(200, [pid 5578] close(3 [pid 5577] close(12 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... symlink resumed>) = 0 [pid 5581] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5580] <... write resumed>) = 4 [pid 5579] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(17 [pid 5581] <... symlink resumed>) = 0 [pid 5581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5580] close(3 [pid 5579] symlink("/dev/binderfs", "./binderfs" [pid 5581] <... openat resumed>) = 3 [pid 5580] <... close resumed>) = 0 [pid 5578] close(4 [pid 5577] close(13 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] write(3, "1000", 4 [pid 5580] read(200, [pid 5579] <... symlink resumed>) = 0 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(18 [pid 5581] <... write resumed>) = 4 [pid 5580] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5577] close(14 [pid 5581] close(3 [pid 5580] symlink("/dev/binderfs", "./binderfs" [pid 5579] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5578] close(5 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = 0 [pid 5580] <... symlink resumed>) = 0 [pid 5579] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(19 [pid 5581] read(200, [pid 5579] close(3 [pid 5578] close(6 [pid 5581] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(15 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] symlink("/dev/binderfs", "./binderfs" [pid 5580] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] close(4 [pid 5578] close(7 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... symlink resumed>) = 0 [pid 5580] close(3 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(20 [pid 5581] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] close(5 [pid 5578] close(8 [pid 5577] close(16 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(4 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(21 [pid 5581] close(3 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] close(6 [pid 5578] close(9 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(5 [pid 5577] close(17 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] close(4 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(22 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(6 [pid 5579] close(7 [pid 5578] close(10 [pid 5577] close(18 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(23 [pid 5581] close(5 [pid 5580] close(7 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(19 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] close(8 [pid 5578] close(11 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(24 [pid 5581] close(6 [pid 5580] close(8 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(20 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] close(9 [pid 5578] close(12 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(25 [pid 5581] close(7 [pid 5580] close(9 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(21 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(26 [pid 5580] close(10 [pid 5577] close(22 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(27 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(11 [pid 5579] close(10 [pid 5578] close(13 [pid 5577] close(23 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] close(8 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(28 [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(12 [pid 5579] close(11 [pid 5578] close(14 [pid 5577] close(24 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] close(9 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] close(29 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(13 [pid 5579] close(12 [pid 5578] close(15 [pid 5581] close(10 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(25 [pid 5576] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(14 [pid 5579] close(13 [pid 5578] close(16 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5576] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5581] close(11 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(26 [pid 5576] <... write resumed>) = 335 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(15 [pid 5579] close(14 [pid 5578] close(17 [pid 5581] close(12 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] exit_group(0 [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(16 [pid 5579] close(15 [pid 5578] close(18 [pid 5581] close(13 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(17 [pid 5579] close(16 [pid 5578] close(19 [pid 5577] close(27 [pid 5581] close(14 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5576] <... exit_group resumed>) = ? [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(18 [pid 5579] close(17 [pid 5578] close(20 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5581] close(15 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(28 [pid 5576] +++ exited with 0 +++ [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(19 [pid 5579] close(18 [pid 5578] close(21 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5581] close(16 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] close(29 [pid 5043] restart_syscall(<... resuming interrupted clone ...> [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(20 [pid 5579] close(19 [pid 5578] close(22 [pid 5577] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... restart_syscall resumed>) = 0 [pid 5581] close(17 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(21 [pid 5579] close(20 [pid 5578] close(23 [pid 5577] <... write resumed>) = 335 [pid 5581] close(18 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5577] exit_group(0 [pid 5043] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(22 [pid 5579] close(21 [pid 5578] close(24 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5581] close(19 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(23 [pid 5579] close(22 [pid 5578] close(25 [pid 5577] <... exit_group resumed>) = ? [pid 5043] <... openat resumed>) = 3 [pid 5581] close(20 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(24 [pid 5579] close(23 [pid 5578] close(26 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5581] close(21 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(25 [pid 5579] close(24 [pid 5578] close(27 [pid 5577] +++ exited with 0 +++ [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5581] close(22 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(26 [pid 5579] close(25 [pid 5578] close(28 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5581] close(23 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./80/binderfs", [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(27 [pid 5579] close(26 [pid 5578] close(29 [pid 5045] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5581] close(24 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./80/binderfs" [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(28 [pid 5579] close(27 [pid 5578] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... unlink resumed>) = 0 [pid 5581] close(25 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... write resumed>) = 335 [pid 5045] <... openat resumed>) = 3 [pid 5043] umount2("./80/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] close(29 [pid 5579] close(28 [pid 5578] exit_group(0 [pid 5045] fstat(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5581] close(26 [pid 5580] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5578] <... exit_group resumed>) = ? [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] lstat("./80/cgroup.net", [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5580] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5579] close(29 [pid 5578] +++ exited with 0 +++ [pid 5045] getdents64(3, [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5581] close(27 [pid 5580] <... write resumed>) = 335 [pid 5579] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] unlink("./80/cgroup.net" [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] exit_group(0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5579] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5581] close(28 [pid 5580] <... exit_group resumed>) = ? [pid 5579] <... write resumed>) = 335 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./80/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5580] +++ exited with 0 +++ [pid 5579] exit_group(0 [pid 5045] lstat("./85/binderfs", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... restart_syscall resumed>) = 0 [pid 5581] close(29 [pid 5579] <... exit_group resumed>) = ? [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] lstat("./80/cgroup.cpu", [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5581] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./85/binderfs"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5581] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5579] +++ exited with 0 +++ [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5581] <... write resumed>) = 335 [pid 5045] umount2("./85/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5043] unlink("./80/cgroup.cpu" [pid 5040] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5581] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5581] <... exit_group resumed>) = ? [pid 5045] lstat("./85/cgroup.net", [pid 5043] umount2("./80/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5581] +++ exited with 0 +++ [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... openat resumed>) = 3 [pid 5045] unlink("./85/cgroup.net" [pid 5044] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./80/cgroup", [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5040] fstat(3, [pid 5039] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] umount2("./85/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] unlink("./80/cgroup" [pid 5040] getdents64(3, [pid 5039] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... openat resumed>) = 3 [pid 5043] <... unlink resumed>) = 0 [pid 5042] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... openat resumed>) = 3 [pid 5045] lstat("./85/cgroup.cpu", [pid 5044] fstat(3, [pid 5043] getdents64(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] fstat(3, [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5045] unlink("./85/cgroup.cpu" [pid 5043] close(3 [pid 5042] <... openat resumed>) = 3 [pid 5040] lstat("./77/binderfs", [pid 5039] getdents64(3, [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] fstat(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5045] umount2("./85/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] rmdir("./80" [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] unlink("./77/binderfs" [pid 5039] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] getdents64(3, [pid 5043] <... rmdir resumed>) = 0 [pid 5042] getdents64(3, [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] lstat("./85/cgroup", [pid 5043] mkdir("./81", 0777 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] umount2("./77/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./74/binderfs", [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5045] unlink("./85/cgroup" [pid 5044] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./77/cgroup.net", [pid 5039] unlink("./74/binderfs"./strace-static-x86_64: Process 5582 attached [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] lstat("./79/binderfs", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5582] set_robust_list(0x555556f426e0, 24 [pid 5045] getdents64(3, [pid 5044] lstat("./83/binderfs", [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 83 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] unlink("./77/cgroup.net" [pid 5039] umount2("./74/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5582] <... set_robust_list resumed>) = 0 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] unlink("./79/binderfs" [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5582] chdir("./81" [pid 5045] close(3 [pid 5044] unlink("./83/binderfs" [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./77/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./74/cgroup.net", [pid 5582] <... chdir resumed>) = 0 [pid 5045] <... close resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] umount2("./79/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5582] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5045] rmdir("./85" [pid 5044] umount2("./83/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./77/cgroup.cpu", [pid 5039] unlink("./74/cgroup.net" [pid 5582] <... prctl resumed>) = 0 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] lstat("./79/cgroup.net", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5582] setpgid(0, 0 [pid 5045] mkdir("./86", 0777 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./77/cgroup.cpu" [pid 5039] umount2("./74/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5582] <... setpgid resumed>) = 0 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] lstat("./83/cgroup.net", [pid 5042] unlink("./79/cgroup.net" [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5582] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./77/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./74/cgroup.cpu", ./strace-static-x86_64: Process 5583 attached [pid 5582] <... symlink resumed>) = 0 [pid 5044] unlink("./83/cgroup.net" [pid 5042] umount2("./79/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5583] set_robust_list(0x555556f426e0, 24 [pid 5582] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 88 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./77/cgroup", [pid 5039] unlink("./74/cgroup.cpu" [pid 5583] <... set_robust_list resumed>) = 0 [pid 5582] <... symlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] lstat("./79/cgroup.cpu", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5583] chdir("./86" [pid 5582] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5044] umount2("./83/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./77/cgroup" [pid 5039] umount2("./74/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5583] <... chdir resumed>) = 0 [pid 5582] <... symlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] unlink("./79/cgroup.cpu" [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] lstat("./83/cgroup.cpu", [pid 5042] <... unlink resumed>) = 0 [pid 5040] getdents64(3, [pid 5039] lstat("./74/cgroup", [pid 5583] <... prctl resumed>) = 0 [pid 5582] <... openat resumed>) = 3 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] umount2("./79/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5583] setpgid(0, 0 [pid 5582] write(3, "1000", 4 [pid 5044] unlink("./83/cgroup.cpu" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] close(3 [pid 5039] unlink("./74/cgroup" [pid 5583] <... setpgid resumed>) = 0 [pid 5582] <... write resumed>) = 4 [pid 5044] <... unlink resumed>) = 0 [pid 5042] lstat("./79/cgroup", [pid 5040] <... close resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5583] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5582] close(3 [pid 5044] umount2("./83/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] rmdir("./77" [pid 5039] getdents64(3, [pid 5583] <... symlink resumed>) = 0 [pid 5582] <... close resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] unlink("./79/cgroup" [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5583] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5582] read(200, [pid 5044] lstat("./83/cgroup", [pid 5042] <... unlink resumed>) = 0 [pid 5040] mkdir("./78", 0777 [pid 5039] close(3 [pid 5583] <... symlink resumed>) = 0 [pid 5582] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] getdents64(3, [pid 5040] <... mkdir resumed>) = 0 [pid 5039] <... close resumed>) = 0 [pid 5583] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5582] symlink("/dev/binderfs", "./binderfs" [pid 5044] unlink("./83/cgroup" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] rmdir("./74"./strace-static-x86_64: Process 5584 attached [pid 5583] <... symlink resumed>) = 0 [pid 5582] <... symlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] close(3 [pid 5039] <... rmdir resumed>) = 0 [pid 5584] set_robust_list(0x555556f426e0, 24 [pid 5583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5582] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5044] getdents64(3, [pid 5042] <... close resumed>) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 80 [pid 5039] mkdir("./75", 0777 [pid 5584] <... set_robust_list resumed>) = 0 [pid 5583] <... openat resumed>) = 3 [pid 5582] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./79" [pid 5039] <... mkdir resumed>) = 0 [pid 5584] chdir("./78" [pid 5583] write(3, "1000", 4 [pid 5582] close(3 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... rmdir resumed>) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5585 attached [pid 5584] <... chdir resumed>) = 0 [pid 5583] <... write resumed>) = 4 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5042] mkdir("./80", 0777 [pid 5585] set_robust_list(0x555556f426e0, 24 [pid 5584] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5583] close(3 [pid 5582] close(4 [pid 5044] <... close resumed>) = 0 [pid 5042] <... mkdir resumed>) = 0 [pid 5585] <... set_robust_list resumed>) = 0 [pid 5584] <... prctl resumed>) = 0 [pid 5583] <... close resumed>) = 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] rmdir("./83" [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 77 ./strace-static-x86_64: Process 5586 attached [pid 5585] chdir("./75" [pid 5584] setpgid(0, 0 [pid 5583] read(200, [pid 5582] close(5 [pid 5044] <... rmdir resumed>) = 0 [pid 5586] set_robust_list(0x555556f426e0, 24 [pid 5585] <... chdir resumed>) = 0 [pid 5584] <... setpgid resumed>) = 0 [pid 5583] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] mkdir("./84", 0777 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 82 [pid 5586] <... set_robust_list resumed>) = 0 [pid 5585] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5584] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5583] symlink("/dev/binderfs", "./binderfs" [pid 5582] close(6 [pid 5044] <... mkdir resumed>) = 0 [pid 5586] chdir("./80" [pid 5585] <... prctl resumed>) = 0 [pid 5584] <... symlink resumed>) = 0 [pid 5583] <... symlink resumed>) = 0 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5586] <... chdir resumed>) = 0 [pid 5585] setpgid(0, 0 [pid 5584] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5583] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5582] close(7 [pid 5585] <... setpgid resumed>) = 0 [pid 5584] <... symlink resumed>) = 0 [pid 5583] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5587 attached [pid 5586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5585] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5584] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5583] close(3 [pid 5582] close(8 [pid 5587] set_robust_list(0x555556f426e0, 24 [pid 5586] <... prctl resumed>) = 0 [pid 5585] <... symlink resumed>) = 0 [pid 5584] <... symlink resumed>) = 0 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 86 [pid 5587] <... set_robust_list resumed>) = 0 [pid 5586] setpgid(0, 0 [pid 5585] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5583] close(4 [pid 5582] close(9 [pid 5587] chdir("./84" [pid 5586] <... setpgid resumed>) = 0 [pid 5585] <... symlink resumed>) = 0 [pid 5584] <... openat resumed>) = 3 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... chdir resumed>) = 0 [pid 5586] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5585] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5584] write(3, "1000", 4 [pid 5583] close(5 [pid 5582] close(10 [pid 5587] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5586] <... symlink resumed>) = 0 [pid 5585] <... symlink resumed>) = 0 [pid 5584] <... write resumed>) = 4 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... prctl resumed>) = 0 [pid 5585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5584] close(3 [pid 5583] close(6 [pid 5582] close(11 [pid 5587] setpgid(0, 0 [pid 5586] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5585] <... openat resumed>) = 3 [pid 5584] <... close resumed>) = 0 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... setpgid resumed>) = 0 [pid 5586] <... symlink resumed>) = 0 [pid 5585] write(3, "1000", 4 [pid 5584] read(200, [pid 5583] close(7 [pid 5582] close(12 [pid 5587] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5585] <... write resumed>) = 4 [pid 5584] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... symlink resumed>) = 0 [pid 5586] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5585] close(3 [pid 5584] symlink("/dev/binderfs", "./binderfs" [pid 5583] close(8 [pid 5582] close(13 [pid 5587] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5586] <... symlink resumed>) = 0 [pid 5585] <... close resumed>) = 0 [pid 5584] <... symlink resumed>) = 0 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... symlink resumed>) = 0 [pid 5586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5585] read(200, [pid 5584] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5583] close(9 [pid 5582] close(14 [pid 5587] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5586] <... openat resumed>) = 3 [pid 5585] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5584] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... symlink resumed>) = 0 [pid 5586] write(3, "1000", 4 [pid 5585] symlink("/dev/binderfs", "./binderfs" [pid 5584] close(3 [pid 5583] close(10 [pid 5582] close(15 [pid 5587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5586] <... write resumed>) = 4 [pid 5585] <... symlink resumed>) = 0 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... openat resumed>) = 3 [pid 5586] close(3 [pid 5584] close(4 [pid 5583] close(11 [pid 5582] close(16 [pid 5587] write(3, "1000", 4 [pid 5586] <... close resumed>) = 0 [pid 5585] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... write resumed>) = 4 [pid 5586] read(200, [pid 5585] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(5 [pid 5583] close(12 [pid 5582] close(17 [pid 5587] close(3 [pid 5586] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5585] close(3 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = 0 [pid 5586] symlink("/dev/binderfs", "./binderfs" [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(6 [pid 5583] close(13 [pid 5582] close(18 [pid 5587] read(200, [pid 5586] <... symlink resumed>) = 0 [pid 5585] close(4 [pid 5587] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5586] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] symlink("/dev/binderfs", "./binderfs" [pid 5586] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] close(19 [pid 5586] close(3) = -1 EBADF (Bad file descriptor) [pid 5586] close(4) = -1 EBADF (Bad file descriptor) [pid 5586] close(5 [pid 5585] close(5 [pid 5584] close(7 [pid 5583] close(14 [pid 5587] <... symlink resumed>) = 0 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(6 [pid 5585] close(6 [pid 5583] close(15 [pid 5582] close(20 [pid 5584] close(8 [pid 5587] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(7 [pid 5587] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(8) = -1 EBADF (Bad file descriptor) [pid 5586] close(9) = -1 EBADF (Bad file descriptor) [pid 5583] close(16 [pid 5582] close(21 [pid 5584] close(9 [pid 5585] close(7 [pid 5587] close(3 [pid 5586] close(10 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] close(4 [pid 5586] close(11 [pid 5585] close(8 [pid 5583] close(17 [pid 5582] close(22 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(10 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(12) = -1 EBADF (Bad file descriptor) [pid 5585] close(9 [pid 5583] close(18 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] close(23 [pid 5587] close(5 [pid 5586] close(13 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(11 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(10 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(19 [pid 5582] close(24 [pid 5587] close(6 [pid 5586] close(14 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(12 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(11 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(20 [pid 5582] close(25 [pid 5587] close(7 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(13 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(15 [pid 5585] close(12 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(21 [pid 5582] close(26 [pid 5587] close(8 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(14 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(16 [pid 5585] close(13 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(22 [pid 5587] close(9 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(15 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] close(27 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(17 [pid 5585] close(14 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(23 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] close(10 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(16 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] close(28write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(18 [pid 5585] close(15 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(24 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] close(29 [pid 5586] close(19 [pid 5583] close(25 [pid 5582] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] close(11 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] close(17 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(20 [pid 5585] close(16 [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(26 [pid 5582] <... write resumed>) = 335 [pid 5587] close(12 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] exit_group(0 [pid 5586] close(21 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] close(27 [pid 5582] <... exit_group resumed>) = ? [pid 5584] close(18 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(17 [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5582] +++ exited with 0 +++ [pid 5586] close(22 [pid 5583] close(28 [pid 5587] close(13 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(23 [pid 5585] close(18 [pid 5584] close(19 [pid 5583] close(29write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5587] close(14 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(24 [pid 5583] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... write resumed>) = 335 [pid 5586] close(25 [pid 5583] exit_group(0 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5583] <... exit_group resumed>) = ? [pid 5587] close(15 [pid 5586] close(26 [pid 5585] close(19 [pid 5584] close(20 [pid 5583] +++ exited with 0 +++ [pid 5043] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5587] close(16 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(20 [pid 5584] close(21 [pid 5043] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(27 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5587] close(17 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(21 [pid 5584] close(22 [pid 5043] <... openat resumed>) = 3 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] close(28 [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, [pid 5587] close(18 [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] close(22 [pid 5584] close(23 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5045] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5587] close(19 [pid 5586] close(29 [pid 5585] close(23 [pid 5584] close(24 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5043] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5587] close(20 [pid 5586] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5585] close(24 [pid 5584] close(25 [pid 5045] <... openat resumed>) = 3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./81/binderfs", [pid 5587] close(21 [pid 5585] close(25 [pid 5584] close(26 [pid 5586] <... write resumed>) = 335 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5043] unlink("./81/binderfs" [pid 5587] close(22 [pid 5586] exit_group(0 [pid 5585] close(26 [pid 5584] close(27 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] <... exit_group resumed>) = ? [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5043] umount2("./81/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5587] close(23 [pid 5585] close(27 [pid 5584] close(28 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5586] +++ exited with 0 +++ [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./81/cgroup.net", [pid 5587] close(24 [pid 5585] close(28 [pid 5584] close(29 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./86/binderfs", write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5587] close(25 [pid 5585] close(29 [pid 5584] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] unlink("./81/cgroup.net" [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5584] <... write resumed>) = 335 [pid 5045] unlink("./86/binderfs" [pid 5587] close(26 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5585] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5584] exit_group(0 [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./86/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5585] <... write resumed>) = 335 [pid 5587] close(27 [pid 5584] <... exit_group resumed>) = ? [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./81/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5585] exit_group(0 [pid 5045] lstat("./86/cgroup.net", [pid 5587] close(28 [pid 5585] <... exit_group resumed>) = ? [pid 5584] +++ exited with 0 +++ [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./86/cgroup.net") = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5045] umount2("./86/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... restart_syscall resumed>) = 0 [pid 5585] +++ exited with 0 +++ [pid 5045] lstat("./86/cgroup.cpu", [pid 5043] lstat("./81/cgroup.cpu", [pid 5042] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5587] close(29 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5587] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./86/cgroup.cpu" [pid 5040] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5587] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... unlink resumed>) = 0 [pid 5043] unlink("./81/cgroup.cpu" [pid 5042] fstat(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5587] <... write resumed>) = 335 [pid 5045] umount2("./86/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5587] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./81/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] getdents64(3, [pid 5040] <... openat resumed>) = 3 [pid 5039] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5587] <... exit_group resumed>) = ? [pid 5045] lstat("./86/cgroup", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] fstat(3, [pid 5039] <... openat resumed>) = 3 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] fstat(3, [pid 5045] unlink("./86/cgroup" [pid 5043] lstat("./81/cgroup", [pid 5042] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] getdents64(3, [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5587] +++ exited with 0 +++ [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] getdents64(3, [pid 5045] getdents64(3, [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] unlink("./81/cgroup" [pid 5042] lstat("./80/binderfs", [pid 5040] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] close(3 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] lstat("./78/binderfs", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... close resumed>) = 0 [pid 5044] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] getdents64(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] unlink("./80/binderfs" [pid 5039] lstat("./75/binderfs", [pid 5045] rmdir("./86" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./78/binderfs" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] close(3 [pid 5042] umount2("./80/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] unlink("./75/binderfs" [pid 5045] mkdir("./87", 0777 [pid 5044] <... openat resumed>) = 3 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./78/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] fstat(3, [pid 5043] <... close resumed>) = 0 [pid 5042] lstat("./80/cgroup.net", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./75/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] rmdir("./81" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./78/cgroup.net", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5588 attached [pid 5044] getdents64(3, [pid 5042] unlink("./80/cgroup.net" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5039] lstat("./75/cgroup.net", [pid 5588] set_robust_list(0x555556f426e0, 24 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 89 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] mkdir("./82", 0777 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./78/cgroup.net" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5588] <... set_robust_list resumed>) = 0 [pid 5044] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... mkdir resumed>) = 0 [pid 5042] umount2("./80/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] unlink("./75/cgroup.net" [pid 5588] chdir("./87" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./78/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5588] <... chdir resumed>) = 0 [pid 5044] lstat("./84/binderfs", [pid 5042] lstat("./80/cgroup.cpu", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./75/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5588] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./78/cgroup.cpu", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5588] <... prctl resumed>) = 0 [pid 5044] unlink("./84/binderfs" [pid 5042] unlink("./80/cgroup.cpu" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] lstat("./75/cgroup.cpu", ./strace-static-x86_64: Process 5589 attached [pid 5588] setpgid(0, 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 84 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./78/cgroup.cpu" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5588] <... setpgid resumed>) = 0 [pid 5044] umount2("./84/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] umount2("./80/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] unlink("./75/cgroup.cpu" [pid 5589] set_robust_list(0x555556f426e0, 24 [pid 5588] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./78/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5589] <... set_robust_list resumed>) = 0 [pid 5588] <... symlink resumed>) = 0 [pid 5044] lstat("./84/cgroup.net", [pid 5042] lstat("./80/cgroup", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./75/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5589] chdir("./82" [pid 5588] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] lstat("./78/cgroup", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5589] <... chdir resumed>) = 0 [pid 5588] <... symlink resumed>) = 0 [pid 5044] unlink("./84/cgroup.net" [pid 5042] unlink("./80/cgroup" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] lstat("./75/cgroup", [pid 5588] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./78/cgroup" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5589] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5588] <... symlink resumed>) = 0 [pid 5044] umount2("./84/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] getdents64(3, [pid 5040] <... unlink resumed>) = 0 [pid 5589] <... prctl resumed>) = 0 [pid 5588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] getdents64(3, [pid 5039] unlink("./75/cgroup" [pid 5589] setpgid(0, 0 [pid 5588] <... openat resumed>) = 3 [pid 5589] <... setpgid resumed>) = 0 [pid 5044] lstat("./84/cgroup.cpu", [pid 5588] write(3, "1000", 4 [pid 5042] close(3 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5589] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 5588] <... write resumed>) = 4 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... close resumed>) = 0 [pid 5040] close(3 [pid 5039] getdents64(3, [pid 5589] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5588] close(3 [pid 5044] unlink("./84/cgroup.cpu" [pid 5042] rmdir("./80" [pid 5040] <... close resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5589] <... symlink resumed>) = 0 [pid 5588] <... close resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... rmdir resumed>) = 0 [pid 5040] rmdir("./78" [pid 5039] close(3 [pid 5589] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5588] read(200, [pid 5044] umount2("./84/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] mkdir("./81", 0777 [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... close resumed>) = 0 [pid 5589] <... symlink resumed>) = 0 [pid 5588] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5588] symlink("/dev/binderfs", "./binderfs" [pid 5044] lstat("./84/cgroup", [pid 5042] <... mkdir resumed>) = 0 [pid 5040] mkdir("./79", 0777 [pid 5039] rmdir("./75" [pid 5588] <... symlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... mkdir resumed>) = 0 [pid 5039] <... rmdir resumed>) = 0 [pid 5589] <... openat resumed>) = 3 [pid 5588] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5044] unlink("./84/cgroup" [pid 5589] write(3, "1000", 4./strace-static-x86_64: Process 5590 attached ) = 4 [pid 5588] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 83 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] mkdir("./76", 0777 [pid 5590] set_robust_list(0x555556f426e0, 24 [pid 5589] close(3 [pid 5588] close(3 [pid 5044] getdents64(3, ./strace-static-x86_64: Process 5591 attached [pid 5589] <... close resumed>) = 0 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5591] set_robust_list(0x555556f426e0, 24 [pid 5590] <... set_robust_list resumed>) = 0 [pid 5589] read(200, [pid 5588] close(4 [pid 5044] close(3 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 81 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5591] <... set_robust_list resumed>) = 0 [pid 5590] chdir("./81" [pid 5589] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... close resumed>) = 0 [pid 5589] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5588] close(5 [pid 5044] rmdir("./84" [pid 5589] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... chdir resumed>) = 0 [pid 5589] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... rmdir resumed>) = 0 [pid 5589] close(3) = -1 EBADF (Bad file descriptor) [pid 5589] close(4) = -1 EBADF (Bad file descriptor) [pid 5590] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5589] close(5 [pid 5588] close(6 [pid 5044] mkdir("./85", 0777 [pid 5590] <... prctl resumed>) = 0 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] setpgid(0, 0 [pid 5589] close(6 [pid 5044] <... mkdir resumed>) = 0 [pid 5590] <... setpgid resumed>) = 0 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] close(7 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5592 attached [pid 5590] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5589] close(7 [pid 5592] set_robust_list(0x555556f426e0, 24 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... set_robust_list resumed>) = 0 [pid 5589] close(8./strace-static-x86_64: Process 5593 attached [pid 5592] chdir("./76" [pid 5591] chdir("./79" [pid 5590] <... symlink resumed>) = 0 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] close(8 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 78 [pid 5593] set_robust_list(0x555556f426e0, 24 [pid 5592] <... chdir resumed>) = 0 [pid 5591] <... chdir resumed>) = 0 [pid 5590] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5589] close(9 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 87 [pid 5593] <... set_robust_list resumed>) = 0 [pid 5591] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5590] <... symlink resumed>) = 0 [pid 5588] close(9 [pid 5593] chdir("./85" [pid 5591] <... prctl resumed>) = 0 [pid 5590] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... chdir resumed>) = 0 [pid 5591] setpgid(0, 0 [pid 5590] <... symlink resumed>) = 0 [pid 5588] close(10 [pid 5593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5591] <... setpgid resumed>) = 0 [pid 5590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... prctl resumed>) = 0 [pid 5592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5591] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5590] <... openat resumed>) = 3 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] close(11 [pid 5593] setpgid(0, 0 [pid 5592] <... prctl resumed>) = 0 [pid 5591] <... symlink resumed>) = 0 [pid 5590] write(3, "1000", 4 [pid 5589] close(10 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... setpgid resumed>) = 0 [pid 5592] setpgid(0, 0 [pid 5591] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5590] <... write resumed>) = 4 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] close(12 [pid 5593] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5591] <... symlink resumed>) = 0 [pid 5590] close(3 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... symlink resumed>) = 0 [pid 5592] <... setpgid resumed>) = 0 [pid 5591] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5590] <... close resumed>) = 0 [pid 5589] close(11 [pid 5588] close(13 [pid 5593] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5592] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... symlink resumed>) = 0 [pid 5592] <... symlink resumed>) = 0 [pid 5591] <... symlink resumed>) = 0 [pid 5590] read(200, [pid 5589] close(12 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5592] <... symlink resumed>) = 0 [pid 5591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5590] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5589] close(13 [pid 5588] close(14 [pid 5593] <... symlink resumed>) = 0 [pid 5592] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5591] <... openat resumed>) = 3 [pid 5590] symlink("/dev/binderfs", "./binderfs" [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5592] <... symlink resumed>) = 0 [pid 5591] write(3, "1000", 4 [pid 5590] <... symlink resumed>) = 0 [pid 5589] close(14 [pid 5592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5591] <... write resumed>) = 4 [pid 5590] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] close(15 [pid 5593] <... openat resumed>) = 3 [pid 5592] <... openat resumed>) = 3 [pid 5591] close(3 [pid 5590] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(15 [pid 5593] write(3, "1000", 4 [pid 5592] write(3, "1000", 4 [pid 5591] <... close resumed>) = 0 [pid 5590] close(3 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... write resumed>) = 4 [pid 5592] <... write resumed>) = 4 [pid 5589] close(16 [pid 5593] close(3 [pid 5592] close(3 [pid 5591] read(200, [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] close(16 [pid 5593] <... close resumed>) = 0 [pid 5592] <... close resumed>) = 0 [pid 5591] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5590] close(4 [pid 5589] close(17 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] read(200, [pid 5592] read(200, [pid 5591] symlink("/dev/binderfs", "./binderfs" [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] close(17 [pid 5593] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5592] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5591] <... symlink resumed>) = 0 [pid 5590] close(5 [pid 5589] close(18 [pid 5593] symlink("/dev/binderfs", "./binderfs" [pid 5592] symlink("/dev/binderfs", "./binderfs" [pid 5591] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... symlink resumed>) = 0 [pid 5593] <... symlink resumed>) = 0 [pid 5589] close(19 [pid 5588] close(18 [pid 5593] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5592] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5591] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(6 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(3 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(20 [pid 5588] close(19 [pid 5593] close(3 [pid 5592] close(3 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(7 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(4 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(21 [pid 5588] close(20 [pid 5593] close(4 [pid 5592] close(4 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(8 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(5 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(22 [pid 5588] close(21 [pid 5593] close(5 [pid 5592] close(5 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(9 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(6 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(23 [pid 5588] close(22 [pid 5593] close(6 [pid 5592] close(6 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(10 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(24 [pid 5588] close(23 [pid 5591] close(7 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(7 [pid 5590] close(11 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(25 [pid 5588] close(24 [pid 5593] close(7 [pid 5592] close(8 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(8 [pid 5589] close(26 [pid 5588] close(25 [pid 5593] close(8 [pid 5592] close(9 [pid 5590] close(12 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(9 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(27 [pid 5588] close(26 [pid 5593] close(9 [pid 5592] close(10 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(13 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(10 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(28 [pid 5588] close(27 [pid 5593] close(10 [pid 5592] close(11 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(14 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(11 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] close(29 [pid 5588] close(28 [pid 5593] close(11 [pid 5592] close(12 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(15 [pid 5589] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(12 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5588] close(29 [pid 5593] close(12 [pid 5592] close(13 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(16 [pid 5589] <... write resumed>) = 335 [pid 5588] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(13 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] exit_group(0 [pid 5588] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5593] close(13 [pid 5592] close(14 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(17 [pid 5589] <... exit_group resumed>) = ? [pid 5588] <... write resumed>) = 335 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(14 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5589] +++ exited with 0 +++ [pid 5588] exit_group(0 [pid 5593] close(14 [pid 5592] close(15 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] close(18 [pid 5588] <... exit_group resumed>) = ? [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(15 [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5593] close(15 [pid 5590] close(19 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] close(16 [pid 5590] close(20 [pid 5588] +++ exited with 0 +++ [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(16 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] close(17 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(16 [pid 5590] close(21 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(17 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5593] close(18 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(17 [pid 5590] close(22 [pid 5045] <... restart_syscall resumed>) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(18 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5593] close(19 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(18 [pid 5590] close(23 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(19 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] close(20 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(19 [pid 5590] close(24 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(20 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] close(21 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(20 [pid 5590] close(25 [pid 5045] <... openat resumed>) = 3 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(21 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5043] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5593] close(22 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(21 [pid 5590] close(26 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(22 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5043] <... openat resumed>) = 3 [pid 5593] close(23 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(22 [pid 5590] close(27 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] fstat(3, [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(23 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] close(24 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(23 [pid 5590] close(28 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(24 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./87/binderfs", [pid 5593] close(25 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(24 [pid 5590] close(29 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] getdents64(3, [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(25 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./87/binderfs" [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5593] close(26 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(25write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5590] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... unlink resumed>) = 0 [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(26 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] <... write resumed>) = 335 [pid 5045] umount2("./87/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] close(27 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] close(26 [pid 5590] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(27 [pid 5590] <... exit_group resumed>) = ? [pid 5045] lstat("./87/cgroup.net", [pid 5593] close(28 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5590] +++ exited with 0 +++ [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(28 [pid 5591] close(27 [pid 5045] unlink("./87/cgroup.net" [pid 5593] close(29 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5043] lstat("./82/binderfs", [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5593] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5592] close(29 [pid 5591] close(28 [pid 5045] umount2("./87/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOWwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5593] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5592] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5593] <... write resumed>) = 335 [pid 5592] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] lstat("./87/cgroup.cpu", [pid 5593] exit_group(0 [pid 5591] close(29write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5043] unlink("./82/binderfs" [pid 5593] <... exit_group resumed>) = ? [pid 5592] <... write resumed>) = 335 [pid 5591] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5591] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] umount2("./82/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5591] <... write resumed>) = 335 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5592] exit_group(0 [pid 5591] exit_group(0 [pid 5045] unlink("./87/cgroup.cpu" [pid 5043] lstat("./82/cgroup.net", [pid 5042] <... openat resumed>) = 3 [pid 5592] <... exit_group resumed>) = ? [pid 5591] <... exit_group resumed>) = ? [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] fstat(3, [pid 5593] +++ exited with 0 +++ [pid 5592] +++ exited with 0 +++ [pid 5591] +++ exited with 0 +++ [pid 5045] umount2("./87/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./82/cgroup.net" [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5042] getdents64(3, [pid 5043] umount2("./82/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5045] lstat("./87/cgroup", [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] lstat("./82/cgroup.cpu", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] unlink("./87/cgroup" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] lstat("./81/binderfs", [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] unlink("./82/cgroup.cpu" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5044] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] unlink("./81/binderfs" [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5045] getdents64(3, [pid 5043] umount2("./82/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... unlink resumed>) = 0 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./81/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... restart_syscall resumed>) = 0 [pid 5045] close(3 [pid 5044] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] lstat("./82/cgroup", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... close resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] lstat("./81/cgroup.net", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] rmdir("./87" [pid 5044] <... openat resumed>) = 3 [pid 5043] unlink("./82/cgroup" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] unlink("./81/cgroup.net" [pid 5043] getdents64(3, [pid 5042] <... unlink resumed>) = 0 [pid 5040] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5045] <... rmdir resumed>) = 0 [pid 5044] fstat(3, [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] umount2("./81/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] close(3 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] mkdir("./88", 0777 [pid 5043] <... close resumed>) = 0 [pid 5042] lstat("./81/cgroup.cpu", [pid 5040] <... openat resumed>) = 3 [pid 5039] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] rmdir("./82" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] getdents64(3, [pid 5043] <... rmdir resumed>) = 0 [pid 5042] unlink("./81/cgroup.cpu" [pid 5040] fstat(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] mkdir("./83", 0777 [pid 5042] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5594 attached [pid 5044] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... mkdir resumed>) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5594] set_robust_list(0x555556f426e0, 24 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 90 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] umount2("./81/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] getdents64(3, [pid 5039] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5595 attached [pid 5594] <... set_robust_list resumed>) = 0 [pid 5044] lstat("./85/binderfs", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5595] set_robust_list(0x555556f426e0, 24 [pid 5594] chdir("./88" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 85 [pid 5042] lstat("./81/cgroup", [pid 5040] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] fstat(3, [pid 5595] <... set_robust_list resumed>) = 0 [pid 5594] <... chdir resumed>) = 0 [pid 5044] unlink("./85/binderfs" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5595] chdir("./83" [pid 5594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] <... unlink resumed>) = 0 [pid 5042] unlink("./81/cgroup" [pid 5040] lstat("./79/binderfs", [pid 5039] getdents64(3, [pid 5595] <... chdir resumed>) = 0 [pid 5594] <... prctl resumed>) = 0 [pid 5044] umount2("./85/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5595] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5594] setpgid(0, 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] getdents64(3, [pid 5040] unlink("./79/binderfs" [pid 5039] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] <... prctl resumed>) = 0 [pid 5594] <... setpgid resumed>) = 0 [pid 5044] lstat("./85/cgroup.net", [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] setpgid(0, 0 [pid 5594] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] close(3 [pid 5040] umount2("./79/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./76/binderfs", [pid 5595] <... setpgid resumed>) = 0 [pid 5594] <... symlink resumed>) = 0 [pid 5044] unlink("./85/cgroup.net" [pid 5042] <... close resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5595] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5594] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5044] <... unlink resumed>) = 0 [pid 5040] lstat("./79/cgroup.net", [pid 5039] unlink("./76/binderfs" [pid 5595] <... symlink resumed>) = 0 [pid 5594] <... symlink resumed>) = 0 [pid 5044] umount2("./85/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] rmdir("./81" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5595] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5594] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./79/cgroup.net" [pid 5039] umount2("./76/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] <... symlink resumed>) = 0 [pid 5594] <... symlink resumed>) = 0 [pid 5044] lstat("./85/cgroup.cpu", [pid 5042] <... rmdir resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] mkdir("./82", 0777 [pid 5040] umount2("./79/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./76/cgroup.net", [pid 5595] <... symlink resumed>) = 0 [pid 5594] <... openat resumed>) = 3 [pid 5044] unlink("./85/cgroup.cpu" [pid 5042] <... mkdir resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5594] write(3, "1000", 4 [pid 5044] <... unlink resumed>) = 0 [pid 5040] lstat("./79/cgroup.cpu", [pid 5039] unlink("./76/cgroup.net" [pid 5595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5594] <... write resumed>) = 4 [pid 5044] umount2("./85/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5595] <... openat resumed>) = 3 [pid 5594] close(3 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./79/cgroup.cpu" [pid 5039] umount2("./76/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5594] <... close resumed>) = 0 [pid 5044] lstat("./85/cgroup", [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5594] read(200, [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] umount2("./79/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./76/cgroup.cpu", ./strace-static-x86_64: Process 5596 attached [pid 5595] write(3, "1000", 4 [pid 5594] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] unlink("./85/cgroup" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5596] set_robust_list(0x555556f426e0, 24 [pid 5595] <... write resumed>) = 4 [pid 5594] symlink("/dev/binderfs", "./binderfs" [pid 5044] <... unlink resumed>) = 0 [pid 5040] lstat("./79/cgroup", [pid 5039] unlink("./76/cgroup.cpu" [pid 5596] <... set_robust_list resumed>) = 0 [pid 5595] close(3 [pid 5594] <... symlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 84 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5596] chdir("./82" [pid 5595] <... close resumed>) = 0 [pid 5594] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] unlink("./79/cgroup" [pid 5039] umount2("./76/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5596] <... chdir resumed>) = 0 [pid 5595] read(200, [pid 5594] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5596] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5595] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5594] close(3 [pid 5044] <... close resumed>) = 0 [pid 5040] getdents64(3, [pid 5039] lstat("./76/cgroup", [pid 5596] <... prctl resumed>) = 0 [pid 5595] symlink("/dev/binderfs", "./binderfs" [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] rmdir("./85" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5596] setpgid(0, 0 [pid 5595] <... symlink resumed>) = 0 [pid 5594] close(4 [pid 5044] <... rmdir resumed>) = 0 [pid 5040] close(3 [pid 5039] unlink("./76/cgroup" [pid 5596] <... setpgid resumed>) = 0 [pid 5595] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] mkdir("./86", 0777 [pid 5040] <... close resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5596] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5595] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(5 [pid 5044] <... mkdir resumed>) = 0 [pid 5040] rmdir("./79" [pid 5039] getdents64(3, [pid 5596] <... symlink resumed>) = 0 [pid 5595] close(3 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5597 attached [pid 5596] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(6 [pid 5040] mkdir("./80", 0777 [pid 5039] close(3 [pid 5597] set_robust_list(0x555556f426e0, 24 [pid 5596] <... symlink resumed>) = 0 [pid 5595] close(4 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 88 [pid 5040] <... mkdir resumed>) = 0 [pid 5039] <... close resumed>) = 0 [pid 5597] <... set_robust_list resumed>) = 0 [pid 5596] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(7 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] rmdir("./76" [pid 5597] chdir("./86" [pid 5596] <... symlink resumed>) = 0 [pid 5595] close(5 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5598 attached [pid 5597] <... chdir resumed>) = 0 [pid 5596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(8 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 82 [pid 5039] mkdir("./77", 0777 [pid 5598] set_robust_list(0x555556f426e0, 24 [pid 5597] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5596] <... openat resumed>) = 3 [pid 5595] close(6 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... mkdir resumed>) = 0 [pid 5598] <... set_robust_list resumed>) = 0 [pid 5597] <... prctl resumed>) = 0 [pid 5596] write(3, "1000", 4 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(9 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5599 attached [pid 5598] chdir("./80" [pid 5597] setpgid(0, 0 [pid 5596] <... write resumed>) = 4 [pid 5595] close(7 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... chdir resumed>) = 0 [pid 5597] <... setpgid resumed>) = 0 [pid 5596] close(3 [pid 5594] close(10 [pid 5597] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5596] <... close resumed>) = 0 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 79 [pid 5599] set_robust_list(0x555556f426e0, 24 [pid 5598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5597] <... symlink resumed>) = 0 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... set_robust_list resumed>) = 0 [pid 5598] <... prctl resumed>) = 0 [pid 5597] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5596] read(200, [pid 5595] close(8 [pid 5594] close(11 [pid 5599] chdir("./77" [pid 5598] setpgid(0, 0 [pid 5597] <... symlink resumed>) = 0 [pid 5596] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... chdir resumed>) = 0 [pid 5598] <... setpgid resumed>) = 0 [pid 5597] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5596] symlink("/dev/binderfs", "./binderfs" [pid 5595] close(9 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5598] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5597] <... symlink resumed>) = 0 [pid 5596] <... symlink resumed>) = 0 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(12 [pid 5599] <... prctl resumed>) = 0 [pid 5598] <... symlink resumed>) = 0 [pid 5597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5596] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5595] close(10 [pid 5599] setpgid(0, 0 [pid 5598] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... setpgid resumed>) = 0 [pid 5598] <... symlink resumed>) = 0 [pid 5597] <... openat resumed>) = 3 [pid 5596] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(11 [pid 5594] close(13 [pid 5599] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5598] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5597] write(3, "1000", 4 [pid 5596] close(3 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... symlink resumed>) = 0 [pid 5598] <... symlink resumed>) = 0 [pid 5597] <... write resumed>) = 4 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(14 [pid 5595] close(12 [pid 5599] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5597] close(3 [pid 5596] close(4 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... symlink resumed>) = 0 [pid 5598] <... openat resumed>) = 3 [pid 5597] <... close resumed>) = 0 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(13 [pid 5594] close(15 [pid 5599] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5598] write(3, "1000", 4 [pid 5597] read(200, [pid 5596] close(5 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... symlink resumed>) = 0 [pid 5598] <... write resumed>) = 4 [pid 5597] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(14 [pid 5594] close(16 [pid 5599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5598] close(3 [pid 5597] symlink("/dev/binderfs", "./binderfs" [pid 5596] close(6 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... symlink resumed>) = 0 [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(17 [pid 5595] close(15 [pid 5597] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5596] close(7 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(18 [pid 5597] close(3 [pid 5596] close(8 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(19 [pid 5599] <... openat resumed>) = 3 [pid 5598] <... close resumed>) = 0 [pid 5597] close(4 [pid 5596] close(9 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] write(3, "1000", 4 [pid 5598] read(200, [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... write resumed>) = 4 [pid 5598] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5597] close(5 [pid 5596] close(10 [pid 5595] close(16 [pid 5594] close(20 [pid 5599] close(3 [pid 5598] symlink("/dev/binderfs", "./binderfs" [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... close resumed>) = 0 [pid 5598] <... symlink resumed>) = 0 [pid 5597] close(6 [pid 5596] close(11 [pid 5595] close(17 [pid 5594] close(21 [pid 5599] read(200, [pid 5598] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5598] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(7 [pid 5596] close(12 [pid 5595] close(18 [pid 5594] close(22 [pid 5599] symlink("/dev/binderfs", "./binderfs" [pid 5598] close(3 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... symlink resumed>) = 0 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(8 [pid 5596] close(13 [pid 5595] close(19 [pid 5594] close(23 [pid 5599] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5598] close(4 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(9 [pid 5595] close(20 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] close(3 [pid 5598] close(5 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] close(14 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(24 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(10 [pid 5595] close(21 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] close(4 [pid 5598] close(6 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(25 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(11 [pid 5596] close(15 [pid 5595] close(22 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] close(5 [pid 5598] close(7 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(23 [pid 5599] close(6 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(24 [pid 5594] close(26 [pid 5599] close(7 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(12 [pid 5596] close(16 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(8 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(25 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] close(8 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(13 [pid 5596] close(17 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(27 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(26 [pid 5599] close(9 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(9 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] close(27 [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] close(10 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(14 [pid 5596] close(18 [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] close(28 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(10 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] close(11 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(15 [pid 5596] close(19 [pid 5595] close(28 [pid 5594] close(29 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(11 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] close(12 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(16write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5596] close(20 [pid 5595] close(29 [pid 5594] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(12 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... write resumed>) = 335 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5599] close(13 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(17 [pid 5596] close(21 [pid 5595] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5594] exit_group(0 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(13 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5594] <... exit_group resumed>) = ? [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(18 [pid 5596] close(22 [pid 5594] +++ exited with 0 +++ [pid 5599] close(14 [pid 5598] close(14 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... write resumed>) = 335 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(19 [pid 5596] close(23 [pid 5595] exit_group(0 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5599] close(15 [pid 5598] close(15 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5595] <... exit_group resumed>) = ? [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(20 [pid 5596] close(24 [pid 5599] close(16 [pid 5598] close(16 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... restart_syscall resumed>) = 0 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(21 [pid 5596] close(25 [pid 5595] +++ exited with 0 +++ [pid 5599] close(17 [pid 5598] close(17 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(22 [pid 5596] close(26 [pid 5045] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5599] close(18 [pid 5598] close(18 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(23 [pid 5596] close(27 [pid 5045] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5599] close(19 [pid 5598] close(19 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5599] close(20 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(24 [pid 5596] close(28 [pid 5045] fstat(3, [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(20 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5599] close(21 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(25 [pid 5596] close(29 [pid 5045] getdents64(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(21 [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] close(26) = -1 EBADF (Bad file descriptor) [pid 5596] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5599] close(22 [pid 5597] close(27 [pid 5596] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... write resumed>) = 335 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... openat resumed>) = 3 [pid 5599] close(23 [pid 5598] close(22write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5597] close(28 [pid 5596] exit_group(0 [pid 5045] lstat("./88/binderfs", [pid 5043] fstat(3, [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(23 [pid 5597] close(29 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5596] <... exit_group resumed>) = ? [pid 5599] close(24 [pid 5598] close(24 [pid 5597] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... write resumed>) = 335 [pid 5598] close(25 [pid 5597] exit_group(0 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5597] <... exit_group resumed>) = ? [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(26 [pid 5596] +++ exited with 0 +++ [pid 5045] unlink("./88/binderfs" [pid 5043] getdents64(3, [pid 5599] close(25 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(27 [pid 5597] +++ exited with 0 +++ [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5599] close(26 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./88/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(28 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5599] close(27 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./88/cgroup.net", [pid 5043] lstat("./83/binderfs", [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] close(29 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5599] close(28 [pid 5598] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./88/cgroup.net" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./83/binderfs" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5598] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... unlink resumed>) = 0 [pid 5044] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... unlink resumed>) = 0 [pid 5042] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5599] close(29 [pid 5045] umount2("./88/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./83/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5599] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5599] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] lstat("./88/cgroup.cpu", [pid 5043] lstat("./83/cgroup.net", [pid 5599] <... write resumed>) = 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5599] exit_group(0write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5045] unlink("./88/cgroup.cpu" [pid 5043] unlink("./83/cgroup.net" [pid 5599] <... exit_group resumed>) = ? [pid 5598] <... write resumed>) = 335 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... openat resumed>) = 3 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5598] exit_group(0 [pid 5045] umount2("./88/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] fstat(3, [pid 5043] umount2("./83/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] fstat(3, [pid 5598] <... exit_group resumed>) = ? [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5599] +++ exited with 0 +++ [pid 5598] +++ exited with 0 +++ [pid 5045] lstat("./88/cgroup", [pid 5044] getdents64(3, [pid 5043] lstat("./83/cgroup.cpu", [pid 5042] getdents64(3, [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5045] unlink("./88/cgroup" [pid 5044] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./83/cgroup.cpu" [pid 5042] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] getdents64(3, [pid 5044] lstat("./86/binderfs", [pid 5043] umount2("./83/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] lstat("./82/binderfs", [pid 5040] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] close(3 [pid 5044] unlink("./86/binderfs" [pid 5043] lstat("./83/cgroup", [pid 5042] unlink("./82/binderfs" [pid 5040] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5045] <... close resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5045] rmdir("./88" [pid 5044] umount2("./86/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./83/cgroup" [pid 5042] umount2("./82/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] fstat(3, [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5045] mkdir("./89", 0777 [pid 5044] lstat("./86/cgroup.net", [pid 5043] getdents64(3, [pid 5042] lstat("./82/cgroup.net", [pid 5040] getdents64(3, [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] unlink("./86/cgroup.net" [pid 5043] close(3 [pid 5042] unlink("./82/cgroup.net" [pid 5040] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5600 attached [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5600] set_robust_list(0x555556f426e0, 24 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 91 [pid 5044] umount2("./86/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] rmdir("./83" [pid 5042] umount2("./82/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./80/binderfs", [pid 5600] <... set_robust_list resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... rmdir resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5600] chdir("./89" [pid 5044] lstat("./86/cgroup.cpu", [pid 5043] mkdir("./84", 0777 [pid 5042] lstat("./82/cgroup.cpu", [pid 5040] unlink("./80/binderfs" [pid 5600] <... chdir resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5600] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] unlink("./86/cgroup.cpu" [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] unlink("./82/cgroup.cpu" [pid 5040] umount2("./80/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5601 attached [pid 5600] <... prctl resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... openat resumed>) = 3 [pid 5601] set_robust_list(0x555556f426e0, 24 [pid 5600] setpgid(0, 0 [pid 5044] umount2("./86/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 86 [pid 5042] umount2("./82/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] lstat("./80/cgroup.net", [pid 5600] <... setpgid resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5600] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5044] lstat("./86/cgroup", [pid 5042] lstat("./82/cgroup", [pid 5040] unlink("./80/cgroup.net" [pid 5600] <... symlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] fstat(3, [pid 5600] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5044] unlink("./86/cgroup" [pid 5042] unlink("./82/cgroup" [pid 5040] umount2("./80/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5601] <... set_robust_list resumed>) = 0 [pid 5600] <... symlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] getdents64(3, [pid 5601] chdir("./84" [pid 5600] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5044] getdents64(3, [pid 5042] getdents64(3, [pid 5040] lstat("./80/cgroup.cpu", [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5601] <... chdir resumed>) = 0 [pid 5600] <... symlink resumed>) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] close(3 [pid 5042] close(3 [pid 5040] unlink("./80/cgroup.cpu" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5601] <... prctl resumed>) = 0 [pid 5600] <... openat resumed>) = 3 [pid 5044] <... close resumed>) = 0 [pid 5042] <... close resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] lstat("./77/binderfs", [pid 5601] setpgid(0, 0 [pid 5600] write(3, "1000", 4 [pid 5044] rmdir("./86" [pid 5042] rmdir("./82" [pid 5040] umount2("./80/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5601] <... setpgid resumed>) = 0 [pid 5600] <... write resumed>) = 4 [pid 5044] <... rmdir resumed>) = 0 [pid 5042] <... rmdir resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./77/binderfs" [pid 5600] close(3 [pid 5044] mkdir("./87", 0777 [pid 5042] mkdir("./83", 0777 [pid 5040] lstat("./80/cgroup", [pid 5039] <... unlink resumed>) = 0 [pid 5601] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5600] <... close resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] umount2("./77/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] <... symlink resumed>) = 0 [pid 5600] read(200, [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] unlink("./80/cgroup" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5601] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5600] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5601] <... symlink resumed>) = 0 [pid 5039] lstat("./77/cgroup.net", [pid 5601] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5600] symlink("/dev/binderfs", "./binderfs" [pid 5040] <... unlink resumed>) = 0 [pid 5601] <... symlink resumed>) = 0 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 89 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5600] <... symlink resumed>) = 0 [pid 5040] getdents64(3, [pid 5039] unlink("./77/cgroup.net"./strace-static-x86_64: Process 5603 attached ./strace-static-x86_64: Process 5602 attached [pid 5601] <... openat resumed>) = 3 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 85 [pid 5601] write(3, "1000", 4 [pid 5603] set_robust_list(0x555556f426e0, 24 [pid 5602] set_robust_list(0x555556f426e0, 24 [pid 5601] <... write resumed>) = 4 [pid 5600] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5601] close(3 [pid 5600] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] close(3 [pid 5039] umount2("./77/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5603] <... set_robust_list resumed>) = 0 [pid 5602] <... set_robust_list resumed>) = 0 [pid 5601] <... close resumed>) = 0 [pid 5600] close(3 [pid 5040] <... close resumed>) = 0 [pid 5601] read(200, 0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5601] symlink("/dev/binderfs", "./binderfs" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5602] chdir("./87" [pid 5601] <... symlink resumed>) = 0 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] rmdir("./80" [pid 5039] lstat("./77/cgroup.cpu", [pid 5603] chdir("./83" [pid 5602] <... chdir resumed>) = 0 [pid 5601] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775) = -1 EBADF (Bad file descriptor) [pid 5601] close(3 [pid 5600] close(4 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... rmdir resumed>) = 0 [pid 5601] close(4 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5603] <... chdir resumed>) = 0 [pid 5602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] mkdir("./81", 0777 [pid 5039] unlink("./77/cgroup.cpu" [pid 5603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5601] close(5) = -1 EBADF (Bad file descriptor) [pid 5600] close(5 [pid 5040] <... mkdir resumed>) = 0 [pid 5603] <... prctl resumed>) = 0 [pid 5602] <... prctl resumed>) = 0 [pid 5601] close(6 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... unlink resumed>) = 0 [pid 5603] setpgid(0, 0 [pid 5602] setpgid(0, 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] close(6 [pid 5601] close(7 [pid 5039] umount2("./77/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5604 attached [pid 5603] <... setpgid resumed>) = 0 [pid 5602] <... setpgid resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5604] set_robust_list(0x555556f426e0, 24 [pid 5603] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5602] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5601] close(8 [pid 5600] close(7 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 83 [pid 5039] lstat("./77/cgroup", [pid 5604] <... set_robust_list resumed>) = 0 [pid 5603] <... symlink resumed>) = 0 [pid 5602] <... symlink resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5604] chdir("./81" [pid 5603] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5602] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5601] close(9 [pid 5600] close(8 [pid 5039] unlink("./77/cgroup" [pid 5604] <... chdir resumed>) = 0 [pid 5603] <... symlink resumed>) = 0 [pid 5602] <... symlink resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5604] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5603] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5602] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5601] close(10 [pid 5600] close(9 [pid 5039] getdents64(3, [pid 5604] <... prctl resumed>) = 0 [pid 5603] <... symlink resumed>) = 0 [pid 5602] <... symlink resumed>) = 0 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5604] setpgid(0, 0 [pid 5603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5600] close(10 [pid 5039] close(3 [pid 5604] <... setpgid resumed>) = 0 [pid 5603] <... openat resumed>) = 3 [pid 5602] <... openat resumed>) = 3 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... close resumed>) = 0 [pid 5604] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5603] write(3, "1000", 4 [pid 5602] write(3, "1000", 4 [pid 5601] close(11 [pid 5600] close(11 [pid 5039] rmdir("./77" [pid 5604] <... symlink resumed>) = 0 [pid 5603] <... write resumed>) = 4 [pid 5602] <... write resumed>) = 4 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... rmdir resumed>) = 0 [pid 5604] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5603] close(3 [pid 5602] close(3 [pid 5601] close(12 [pid 5600] close(12 [pid 5039] mkdir("./78", 0777 [pid 5604] <... symlink resumed>) = 0 [pid 5603] <... close resumed>) = 0 [pid 5602] <... close resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... mkdir resumed>) = 0 [pid 5604] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5603] read(200, [pid 5602] read(200, [pid 5601] close(13 [pid 5600] close(13 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5604] <... symlink resumed>) = 0 [pid 5603] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5602] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5605 attached [pid 5604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5603] symlink("/dev/binderfs", "./binderfs" [pid 5602] symlink("/dev/binderfs", "./binderfs" [pid 5601] close(14 [pid 5600] close(14 [pid 5605] set_robust_list(0x555556f426e0, 24 [pid 5604] <... openat resumed>) = 3 [pid 5603] <... symlink resumed>) = 0 [pid 5602] <... symlink resumed>) = 0 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... set_robust_list resumed>) = 0 [pid 5604] write(3, "1000", 4 [pid 5603] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5602] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5600] close(15 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 80 [pid 5605] chdir("./78" [pid 5604] <... write resumed>) = 4 [pid 5603] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] close(15 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... chdir resumed>) = 0 [pid 5604] close(3 [pid 5603] close(3 [pid 5602] close(3 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] close(16 [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5604] <... close resumed>) = 0 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] close(16 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... prctl resumed>) = 0 [pid 5604] read(200, [pid 5603] close(4 [pid 5602] close(4 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] close(17 [pid 5605] setpgid(0, 0 [pid 5604] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] close(17 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... setpgid resumed>) = 0 [pid 5604] symlink("/dev/binderfs", "./binderfs" [pid 5603] close(5 [pid 5602] close(5 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] close(18 [pid 5605] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5604] <... symlink resumed>) = 0 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] close(18 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... symlink resumed>) = 0 [pid 5604] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5603] close(6 [pid 5602] close(6 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] close(19 [pid 5605] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5604] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] close(19 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... symlink resumed>) = 0 [pid 5604] close(3 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(7 [pid 5602] close(7 [pid 5601] close(20 [pid 5600] close(20 [pid 5605] <... symlink resumed>) = 0 [pid 5604] close(4 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(8 [pid 5602] close(8 [pid 5601] close(21 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... openat resumed>) = 3 [pid 5604] close(5 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] write(3, "1000", 4 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(9 [pid 5601] close(22 [pid 5600] close(21 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(6 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(9 [pid 5601] close(23 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... write resumed>) = 4 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(10 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] close(3 [pid 5600] close(22 [pid 5604] close(7 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(10 [pid 5601] close(24 [pid 5605] <... close resumed>) = 0 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(11 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] read(200, [pid 5604] close(8 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(11 [pid 5601] close(25 [pid 5600] close(23 [pid 5605] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(12 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] symlink("/dev/binderfs", "./binderfs" [pid 5604] close(9 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(12 [pid 5601] close(26) = -1 EBADF (Bad file descriptor) [pid 5600] close(24write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5605] <... symlink resumed>) = 0 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(13 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] close(27 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5604] close(10 [pid 5601] close(28 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(13 [pid 5601] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] close(25 [pid 5601] close(29) = -1 EBADF (Bad file descriptor) [pid 5601] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(14 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] <... write resumed>) = 335 [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(11 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(14 [pid 5601] exit_group(0 [pid 5600] close(26 [pid 5605] close(3 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(15 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] <... exit_group resumed>) = ? [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(12 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(15 [pid 5600] close(27 [pid 5605] close(4 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(16 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(13 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(16 [pid 5600] close(28 [pid 5605] close(5 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(17 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5601] +++ exited with 0 +++ [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(14 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(17 [pid 5600] close(29 [pid 5605] close(6 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(18 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(15 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(18 [pid 5600] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5605] close(7 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(19 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... write resumed>) = 335 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(16 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(19 [pid 5600] exit_group(0 [pid 5605] close(8 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(20 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] <... exit_group resumed>) = ? [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(17 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(20 [pid 5605] close(9 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(21 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5600] +++ exited with 0 +++ [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(18 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(21 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5605] close(10 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(22 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(19 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(22 [pid 5605] close(11 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(23 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(20 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(23 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5605] close(12 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(24 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(21 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(24 [pid 5045] <... openat resumed>) = 3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5605] close(13 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(25 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(22 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(25 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5605] close(14 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(26 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(23 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(26 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5605] close(15 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(27 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(24 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(27 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... openat resumed>) = 3 [pid 5605] close(16 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(28 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./89/binderfs", [pid 5043] fstat(3, [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(25 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(28 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5605] close(17 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] close(29 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./89/binderfs" [pid 5043] getdents64(3, write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(26 [pid 5603] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5602] close(29 [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5605] close(18 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5602] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./89/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(27 [pid 5603] <... write resumed>) = 335 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5602] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] close(19 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] exit_group(0 [pid 5602] <... write resumed>) = 335 [pid 5045] lstat("./89/cgroup.net", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(28 [pid 5603] <... exit_group resumed>) = ? [pid 5602] exit_group(0 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5605] close(20 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5603] +++ exited with 0 +++ [pid 5602] <... exit_group resumed>) = ? [pid 5045] unlink("./89/cgroup.net" [pid 5043] lstat("./84/binderfs", [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] close(29 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5043] unlink("./84/binderfs" [pid 5605] close(21 [pid 5604] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] umount2("./89/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./84/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] close(22 [pid 5604] <... write resumed>) = 335 [pid 5602] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./84/cgroup.net", [pid 5042] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] exit_group(0 [pid 5045] lstat("./89/cgroup.cpu", [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5605] close(23 [pid 5604] <... exit_group resumed>) = ? [pid 5043] unlink("./84/cgroup.net" [pid 5042] fstat(3, [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5604] +++ exited with 0 +++ [pid 5045] unlink("./89/cgroup.cpu" [pid 5043] umount2("./84/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] getdents64(3, [pid 5605] close(24 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5043] lstat("./84/cgroup.cpu", [pid 5042] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] close(25 [pid 5045] umount2("./89/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] unlink("./84/cgroup.cpu" [pid 5042] lstat("./83/binderfs", [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5605] close(26 [pid 5045] lstat("./89/cgroup", [pid 5044] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] umount2("./84/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] unlink("./83/binderfs" [pid 5040] <... restart_syscall resumed>) = 0 [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... openat resumed>) = 3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... unlink resumed>) = 0 [pid 5605] close(27 [pid 5045] unlink("./89/cgroup" [pid 5044] fstat(3, [pid 5043] lstat("./84/cgroup", [pid 5042] umount2("./83/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5605] close(28 [pid 5045] getdents64(3, [pid 5044] getdents64(3, [pid 5043] unlink("./84/cgroup" [pid 5042] lstat("./83/cgroup.net", [pid 5040] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] getdents64(3, [pid 5042] unlink("./83/cgroup.net" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5605] close(29 [pid 5045] close(3 [pid 5044] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5605] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5043] close(3 [pid 5042] umount2("./83/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... openat resumed>) = 3 [pid 5605] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] rmdir("./89" [pid 5044] lstat("./87/binderfs", [pid 5040] fstat(3, [pid 5605] <... write resumed>) = 335 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5605] exit_group(0 [pid 5045] mkdir("./90", 0777 [pid 5044] unlink("./87/binderfs" [pid 5040] getdents64(3, [pid 5605] <... exit_group resumed>) = ? [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] rmdir("./84" [pid 5042] lstat("./83/cgroup.cpu", [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5605] +++ exited with 0 +++ [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] umount2("./87/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... rmdir resumed>) = 0 [pid 5040] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5606 attached [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] mkdir("./85", 0777 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 92 [pid 5044] lstat("./87/cgroup.net", [pid 5040] lstat("./81/binderfs", [pid 5606] set_robust_list(0x555556f426e0, 24 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] unlink("./83/cgroup.cpu" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5606] <... set_robust_list resumed>) = 0 [pid 5044] unlink("./87/cgroup.net" [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./81/binderfs" [pid 5039] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] chdir("./90" [pid 5044] <... unlink resumed>) = 0 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] umount2("./83/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5606] <... chdir resumed>) = 0 [pid 5044] umount2("./87/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./81/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... openat resumed>) = 3 [pid 5606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] lstat("./87/cgroup.cpu", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./81/cgroup.net", [pid 5039] fstat(3, [pid 5606] <... prctl resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] lstat("./83/cgroup", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5606] setpgid(0, 0 [pid 5044] unlink("./87/cgroup.cpu" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] unlink("./81/cgroup.net" [pid 5039] getdents64(3, [pid 5606] <... setpgid resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] unlink("./83/cgroup" [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] umount2("./87/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5042] <... unlink resumed>) = 0 [pid 5040] umount2("./81/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5607 attached [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] getdents64(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5607] set_robust_list(0x555556f426e0, 24 [pid 5606] <... symlink resumed>) = 0 [pid 5044] lstat("./87/cgroup", [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 87 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] lstat("./81/cgroup.cpu", [pid 5039] lstat("./78/binderfs", [pid 5607] <... set_robust_list resumed>) = 0 [pid 5606] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] close(3 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5607] chdir("./85" [pid 5606] <... symlink resumed>) = 0 [pid 5044] unlink("./87/cgroup" [pid 5042] <... close resumed>) = 0 [pid 5040] unlink("./81/cgroup.cpu" [pid 5039] unlink("./78/binderfs" [pid 5607] <... chdir resumed>) = 0 [pid 5606] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5044] <... unlink resumed>) = 0 [pid 5042] rmdir("./83" [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5607] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5606] <... symlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5042] <... rmdir resumed>) = 0 [pid 5040] umount2("./81/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./78/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5607] <... prctl resumed>) = 0 [pid 5606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] mkdir("./84", 0777 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5607] setpgid(0, 0 [pid 5606] <... openat resumed>) = 3 [pid 5044] close(3 [pid 5040] lstat("./81/cgroup", [pid 5039] lstat("./78/cgroup.net", [pid 5607] <... setpgid resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5607] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5606] write(3, "1000", 4 [pid 5044] rmdir("./87" [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] unlink("./81/cgroup" [pid 5039] unlink("./78/cgroup.net" [pid 5607] <... symlink resumed>) = 0 [pid 5606] <... write resumed>) = 4 [pid 5044] <... rmdir resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5607] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5044] mkdir("./88", 0777 [pid 5040] getdents64(3, [pid 5039] umount2("./78/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5608 attached [pid 5607] <... symlink resumed>) = 0 [pid 5606] close(3 [pid 5044] <... mkdir resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5608] set_robust_list(0x555556f426e0, 24 [pid 5607] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5606] <... close resumed>) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 86 [pid 5040] close(3 [pid 5039] lstat("./78/cgroup.cpu", ./strace-static-x86_64: Process 5609 attached [pid 5608] <... set_robust_list resumed>) = 0 [pid 5607] <... symlink resumed>) = 0 [pid 5606] read(200, [pid 5040] <... close resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5609] set_robust_list(0x555556f426e0, 24 [pid 5608] chdir("./84" [pid 5607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5606] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 90 [pid 5040] rmdir("./81" [pid 5039] unlink("./78/cgroup.cpu" [pid 5609] <... set_robust_list resumed>) = 0 [pid 5608] <... chdir resumed>) = 0 [pid 5607] <... openat resumed>) = 3 [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5608] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5607] write(3, "1000", 4 [pid 5040] mkdir("./82", 0777 [pid 5039] umount2("./78/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5608] <... prctl resumed>) = 0 [pid 5607] <... write resumed>) = 4 [pid 5040] <... mkdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5608] setpgid(0, 0 [pid 5607] close(3 [pid 5606] symlink("/dev/binderfs", "./binderfs" [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] lstat("./78/cgroup", ./strace-static-x86_64: Process 5610 attached [pid 5609] chdir("./88" [pid 5608] <... setpgid resumed>) = 0 [pid 5607] <... close resumed>) = 0 [pid 5606] <... symlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5610] set_robust_list(0x555556f426e0, 24 [pid 5609] <... chdir resumed>) = 0 [pid 5608] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5607] read(200, [pid 5606] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 84 [pid 5039] unlink("./78/cgroup" [pid 5610] <... set_robust_list resumed>) = 0 [pid 5609] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5608] <... symlink resumed>) = 0 [pid 5607] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5606] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5610] chdir("./82" [pid 5609] <... prctl resumed>) = 0 [pid 5608] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5607] symlink("/dev/binderfs", "./binderfs" [pid 5606] close(3 [pid 5039] getdents64(3, [pid 5610] <... chdir resumed>) = 0 [pid 5609] setpgid(0, 0 [pid 5608] <... symlink resumed>) = 0 [pid 5607] <... symlink resumed>) = 0 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5610] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5609] <... setpgid resumed>) = 0 [pid 5608] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5607] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5606] close(4 [pid 5039] close(3 [pid 5610] <... prctl resumed>) = 0 [pid 5608] <... symlink resumed>) = 0 [pid 5607] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... close resumed>) = 0 [pid 5610] setpgid(0, 0 [pid 5609] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5607] close(3 [pid 5606] close(5 [pid 5039] rmdir("./78" [pid 5610] <... setpgid resumed>) = 0 [pid 5609] <... symlink resumed>) = 0 [pid 5608] <... openat resumed>) = 3 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... rmdir resumed>) = 0 [pid 5610] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5609] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5608] write(3, "1000", 4 [pid 5607] close(4 [pid 5606] close(6 [pid 5039] mkdir("./79", 0777 [pid 5610] <... symlink resumed>) = 0 [pid 5608] <... write resumed>) = 4 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... mkdir resumed>) = 0 [pid 5610] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5609] <... symlink resumed>) = 0 [pid 5608] close(3 [pid 5607] close(5 [pid 5606] close(7 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5611 attached [pid 5610] <... symlink resumed>) = 0 [pid 5609] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5608] <... close resumed>) = 0 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] set_robust_list(0x555556f426e0, 24 [pid 5610] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5609] <... symlink resumed>) = 0 [pid 5608] read(200, [pid 5607] close(6 [pid 5606] close(8 [pid 5611] <... set_robust_list resumed>) = 0 [pid 5610] <... symlink resumed>) = 0 [pid 5609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5608] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 81 [pid 5611] chdir("./79" [pid 5610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5609] <... openat resumed>) = 3 [pid 5608] symlink("/dev/binderfs", "./binderfs" [pid 5607] close(7 [pid 5606] close(9 [pid 5611] <... chdir resumed>) = 0 [pid 5610] <... openat resumed>) = 3 [pid 5609] write(3, "1000", 4 [pid 5608] <... symlink resumed>) = 0 [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5610] write(3, "1000", 4 [pid 5609] <... write resumed>) = 4 [pid 5608] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5607] close(8 [pid 5606] close(10 [pid 5611] <... prctl resumed>) = 0 [pid 5610] <... write resumed>) = 4 [pid 5609] close(3 [pid 5608] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] setpgid(0, 0 [pid 5610] close(3 [pid 5608] close(3 [pid 5607] close(9 [pid 5611] <... setpgid resumed>) = 0 [pid 5610] <... close resumed>) = 0 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5610] read(200, [pid 5609] <... close resumed>) = 0 [pid 5608] close(4 [pid 5607] close(10 [pid 5606] close(11 [pid 5611] <... symlink resumed>) = 0 [pid 5609] read(200, [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5610] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5609] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(12 [pid 5611] <... symlink resumed>) = 0 [pid 5610] symlink("/dev/binderfs", "./binderfs" [pid 5609] symlink("/dev/binderfs", "./binderfs" [pid 5608] close(5 [pid 5607] close(11 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5610] <... symlink resumed>) = 0 [pid 5609] <... symlink resumed>) = 0 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(13 [pid 5611] <... symlink resumed>) = 0 [pid 5610] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5609] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5608] close(6 [pid 5607] close(12 [pid 5611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5610] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... openat resumed>) = 3 [pid 5610] close(3 [pid 5609] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] close(7 [pid 5607] close(13 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] write(3, "1000", 4 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... write resumed>) = 4 [pid 5610] close(4 [pid 5608] close(8 [pid 5607] close(14 [pid 5611] close(3 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] close(3 [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = 0 [pid 5610] close(5 [pid 5608] close(9 [pid 5607] close(15 [pid 5611] read(200, [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(14 [pid 5611] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5610] close(6 [pid 5609] close(4 [pid 5608] close(10 [pid 5607] close(16 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] symlink("/dev/binderfs", "./binderfs" [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(15 [pid 5611] <... symlink resumed>) = 0 [pid 5610] close(7 [pid 5609] close(5 [pid 5608] close(11 [pid 5607] close(17 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(16 [pid 5611] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(8 [pid 5609] close(6 [pid 5608] close(12 [pid 5607] close(18 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(3 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(17 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(9 [pid 5609] close(7 [pid 5608] close(13 [pid 5607] close(19 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(4 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(18 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(10 [pid 5609] close(8 [pid 5608] close(14 [pid 5607] close(20 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(5 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(19 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(11 [pid 5609] close(9 [pid 5608] close(15 [pid 5607] close(21 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(6 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(20 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(12 [pid 5609] close(10 [pid 5608] close(16 [pid 5607] close(22 [pid 5611] close(7 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(13 [pid 5609] close(11 [pid 5608] close(17 [pid 5607] close(23 [pid 5606] close(21 [pid 5611] close(8 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(14 [pid 5609] close(12 [pid 5608] close(18 [pid 5607] close(24 [pid 5606] close(22 [pid 5611] close(9 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(15 [pid 5609] close(13 [pid 5608] close(19 [pid 5607] close(25 [pid 5606] close(23 [pid 5611] close(10 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(16 [pid 5609] close(14 [pid 5608] close(20 [pid 5607] close(26 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(11 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(17 [pid 5609] close(15 [pid 5608] close(21 [pid 5607] close(27 [pid 5606] close(24 [pid 5611] close(12 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(18 [pid 5609] close(16 [pid 5608] close(22 [pid 5607] close(28 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(13 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] close(25 [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(19 [pid 5609] close(17 [pid 5608] close(23 [pid 5607] close(29 [pid 5611] close(14 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(20 [pid 5609] close(18 [pid 5608] close(24 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5607] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5606] close(26 [pid 5611] close(15 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... write resumed>) = 335 [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(21 [pid 5609] close(19 [pid 5608] close(25 [pid 5607] exit_group(0 [pid 5606] close(27 [pid 5611] close(16 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5607] <... exit_group resumed>) = ? [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(22 [pid 5609] close(20 [pid 5608] close(26 [pid 5607] +++ exited with 0 +++ [pid 5606] close(28 [pid 5611] close(17 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(23 [pid 5609] close(21 [pid 5608] close(27 [pid 5606] close(29 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5611] close(18 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(24 [pid 5609] close(22write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5608] close(28 [pid 5606] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5611] close(19 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5606] <... write resumed>) = 335 [pid 5043] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(25 [pid 5609] close(23 [pid 5608] close(29 [pid 5606] exit_group(0 [pid 5043] <... openat resumed>) = 3 [pid 5611] close(20 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5606] <... exit_group resumed>) = ? [pid 5043] fstat(3, [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(26 [pid 5609] close(24 [pid 5608] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5611] close(21 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] <... write resumed>) = 335 [pid 5606] +++ exited with 0 +++ [pid 5043] getdents64(3, [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(27 [pid 5609] close(25) = -1 EBADF (Bad file descriptor) [pid 5609] close(26) = -1 EBADF (Bad file descriptor) [pid 5609] close(27) = -1 EBADF (Bad file descriptor) [pid 5609] close(28) = -1 EBADF (Bad file descriptor) [pid 5609] close(29) = -1 EBADF (Bad file descriptor) [pid 5609] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5608] exit_group(0 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5611] close(22 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5609] <... write resumed>) = 335 [pid 5609] exit_group(0) = ? [pid 5608] <... exit_group resumed>) = ? [pid 5043] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(28 [pid 5609] +++ exited with 0 +++ [pid 5611] close(23 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] close(29 [pid 5043] lstat("./85/binderfs", [pid 5611] close(24 [pid 5610] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5608] +++ exited with 0 +++ [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5043] unlink("./85/binderfs" [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5611] close(25 [pid 5045] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5610] <... write resumed>) = 335 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... restart_syscall resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5611] close(26 [pid 5610] exit_group(0 [pid 5045] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5610] <... exit_group resumed>) = ? [pid 5045] <... openat resumed>) = 3 [pid 5043] umount2("./85/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5611] close(27 [pid 5610] +++ exited with 0 +++ [pid 5045] fstat(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./85/cgroup.net", [pid 5042] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] getdents64(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5611] close(28 [pid 5045] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] fstat(3, [pid 5611] close(29 [pid 5045] lstat("./90/binderfs", [pid 5044] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] unlink("./85/cgroup.net" [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5611] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... openat resumed>) = 3 [pid 5043] <... unlink resumed>) = 0 [pid 5042] getdents64(3, [pid 5040] <... restart_syscall resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5611] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] unlink("./90/binderfs" [pid 5044] fstat(3, [pid 5043] umount2("./85/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5611] <... write resumed>) = 335 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5611] exit_group(0 [pid 5045] umount2("./90/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] getdents64(3, [pid 5043] lstat("./85/cgroup.cpu", [pid 5040] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5611] <... exit_group resumed>) = ? [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5611] +++ exited with 0 +++ [pid 5045] lstat("./90/cgroup.net", [pid 5044] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./85/cgroup.cpu" [pid 5040] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5044] lstat("./88/binderfs", [pid 5043] umount2("./85/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] fstat(3, [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] lstat("./84/binderfs", [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5045] unlink("./90/cgroup.net" [pid 5044] unlink("./88/binderfs" [pid 5043] lstat("./85/cgroup", [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] getdents64(3, [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5045] umount2("./90/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./88/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./85/cgroup" [pid 5042] unlink("./84/binderfs" [pid 5040] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] lstat("./90/cgroup.cpu", [pid 5044] lstat("./88/cgroup.net", [pid 5043] getdents64(3, [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./82/binderfs", [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] umount2("./84/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5045] unlink("./90/cgroup.cpu" [pid 5044] unlink("./88/cgroup.net" [pid 5043] close(3 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./82/binderfs" [pid 5039] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] lstat("./84/cgroup.net", [pid 5040] <... unlink resumed>) = 0 [pid 5045] umount2("./90/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./88/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] rmdir("./85" [pid 5040] umount2("./82/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... rmdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] lstat("./90/cgroup", [pid 5044] lstat("./88/cgroup.cpu", [pid 5043] mkdir("./86", 0777 [pid 5040] lstat("./82/cgroup.net", [pid 5039] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] unlink("./84/cgroup.net" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5045] unlink("./90/cgroup" [pid 5044] unlink("./88/cgroup.cpu" [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] unlink("./82/cgroup.net" [pid 5039] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5612 attached [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5612] set_robust_list(0x555556f426e0, 24 [pid 5045] getdents64(3, [pid 5044] umount2("./88/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 88 [pid 5040] umount2("./82/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] fstat(3, [pid 5612] <... set_robust_list resumed>) = 0 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./84/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5612] chdir("./86" [pid 5045] close(3 [pid 5044] lstat("./88/cgroup", [pid 5040] lstat("./82/cgroup.cpu", [pid 5612] <... chdir resumed>) = 0 [pid 5045] <... close resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5045] rmdir("./90" [pid 5044] unlink("./88/cgroup" [pid 5042] lstat("./84/cgroup.cpu", [pid 5040] unlink("./82/cgroup.cpu" [pid 5039] getdents64(3, [pid 5612] <... prctl resumed>) = 0 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5612] setpgid(0, 0 [pid 5045] mkdir("./91", 0777 [pid 5044] getdents64(3, [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./82/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5612] <... setpgid resumed>) = 0 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5612] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] close(3 [pid 5042] unlink("./84/cgroup.cpu" [pid 5040] lstat("./82/cgroup", [pid 5039] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5613 attached [pid 5612] <... symlink resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5613] set_robust_list(0x555556f426e0, 24 [pid 5612] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 93 [pid 5044] rmdir("./88" [pid 5040] unlink("./82/cgroup" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5613] <... set_robust_list resumed>) = 0 [pid 5612] <... symlink resumed>) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5042] umount2("./84/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] lstat("./79/binderfs", [pid 5612] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5044] mkdir("./89", 0777 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] getdents64(3, [pid 5613] chdir("./91" [pid 5612] <... symlink resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] close(3./strace-static-x86_64: Process 5614 attached [pid 5613] <... chdir resumed>) = 0 [pid 5612] <... openat resumed>) = 3 [pid 5042] lstat("./84/cgroup", [pid 5040] <... close resumed>) = 0 [pid 5039] unlink("./79/binderfs" [pid 5614] set_robust_list(0x555556f426e0, 24 [pid 5613] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5612] write(3, "1000", 4 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 91 [pid 5040] rmdir("./82" [pid 5614] <... set_robust_list resumed>) = 0 [pid 5613] <... prctl resumed>) = 0 [pid 5612] <... write resumed>) = 4 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5614] chdir("./89" [pid 5613] setpgid(0, 0 [pid 5612] close(3 [pid 5042] unlink("./84/cgroup" [pid 5040] mkdir("./83", 0777 [pid 5614] <... chdir resumed>) = 0 [pid 5613] <... setpgid resumed>) = 0 [pid 5612] <... close resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... mkdir resumed>) = 0 [pid 5039] umount2("./79/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5613] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5612] read(200, [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] getdents64(3, [pid 5614] <... prctl resumed>) = 0 [pid 5613] <... symlink resumed>) = 0 [pid 5612] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5615 attached [pid 5614] setpgid(0, 0 [pid 5613] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5612] symlink("/dev/binderfs", "./binderfs" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 85 [pid 5615] set_robust_list(0x555556f426e0, 24 [pid 5614] <... setpgid resumed>) = 0 [pid 5613] <... symlink resumed>) = 0 [pid 5612] <... symlink resumed>) = 0 [pid 5042] close(3 [pid 5039] lstat("./79/cgroup.net", [pid 5614] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5613] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5612] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5615] <... set_robust_list resumed>) = 0 [pid 5614] <... symlink resumed>) = 0 [pid 5613] <... symlink resumed>) = 0 [pid 5612] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5615] chdir("./83" [pid 5614] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5612] close(3 [pid 5615] <... chdir resumed>) = 0 [pid 5614] <... symlink resumed>) = 0 [pid 5613] <... openat resumed>) = 3 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./84" [pid 5039] unlink("./79/cgroup.net" [pid 5614] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5613] write(3, "1000", 4 [pid 5612] close(4 [pid 5614] <... symlink resumed>) = 0 [pid 5613] <... write resumed>) = 4 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5613] close(3 [pid 5612] close(5 [pid 5042] <... rmdir resumed>) = 0 [pid 5615] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5614] <... openat resumed>) = 3 [pid 5613] <... close resumed>) = 0 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5615] <... prctl resumed>) = 0 [pid 5614] write(3, "1000", 4 [pid 5613] read(200, [pid 5612] close(6 [pid 5042] mkdir("./85", 0777 [pid 5039] umount2("./79/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5615] setpgid(0, 0 [pid 5614] <... write resumed>) = 4 [pid 5613] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5615] <... setpgid resumed>) = 0 [pid 5614] close(3 [pid 5613] symlink("/dev/binderfs", "./binderfs" [pid 5612] close(7 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] lstat("./79/cgroup.cpu", [pid 5615] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5614] <... close resumed>) = 0 [pid 5613] <... symlink resumed>) = 0 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 ./strace-static-x86_64: Process 5616 attached [pid 5615] <... symlink resumed>) = 0 [pid 5614] read(200, [pid 5613] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5612] close(8 [pid 5039] unlink("./79/cgroup.cpu" [pid 5616] set_robust_list(0x555556f426e0, 24 [pid 5615] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5614] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5613] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5616] <... set_robust_list resumed>) = 0 [pid 5615] <... symlink resumed>) = 0 [pid 5614] symlink("/dev/binderfs", "./binderfs" [pid 5613] close(3 [pid 5612] close(9 [pid 5039] umount2("./79/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5616] chdir("./85" [pid 5614] <... symlink resumed>) = 0 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5616] <... chdir resumed>) = 0 [pid 5615] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5614] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5613] close(4 [pid 5612] close(10 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 87 [pid 5039] lstat("./79/cgroup", [pid 5616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5615] <... symlink resumed>) = 0 [pid 5614] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5616] <... prctl resumed>) = 0 [pid 5615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5614] close(3 [pid 5613] close(5 [pid 5612] close(11 [pid 5039] unlink("./79/cgroup" [pid 5616] setpgid(0, 0 [pid 5615] <... openat resumed>) = 3 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5616] <... setpgid resumed>) = 0 [pid 5615] write(3, "1000", 4 [pid 5614] close(4 [pid 5613] close(6 [pid 5612] close(12 [pid 5039] getdents64(3, [pid 5615] <... write resumed>) = 4 [pid 5615] close(3 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5615] <... close resumed>) = 0 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5616] <... symlink resumed>) = 0 [pid 5615] read(200, [pid 5614] close(5 [pid 5613] close(7 [pid 5612] close(13 [pid 5616] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5615] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] close(3 [pid 5615] symlink("/dev/binderfs", "./binderfs" [pid 5613] close(8 [pid 5616] <... symlink resumed>) = 0 [pid 5615] <... symlink resumed>) = 0 [pid 5614] close(6 [pid 5612] close(14 [pid 5039] <... close resumed>) = 0 [pid 5615] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775) = -1 EBADF (Bad file descriptor) [pid 5615] close(3 [pid 5616] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] rmdir("./79" [pid 5615] close(4) = -1 EBADF (Bad file descriptor) [pid 5615] close(5) = -1 EBADF (Bad file descriptor) [pid 5615] close(6) = -1 EBADF (Bad file descriptor) [pid 5616] <... symlink resumed>) = 0 [pid 5615] close(7) = -1 EBADF (Bad file descriptor) [pid 5039] <... rmdir resumed>) = 0 [pid 5615] close(8 [pid 5614] close(7 [pid 5613] close(9 [pid 5612] close(15 [pid 5616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] mkdir("./80", 0777 [pid 5616] <... openat resumed>) = 3 [pid 5615] close(9 [pid 5614] close(8 [pid 5613] close(10 [pid 5616] write(3, "1000", 4 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] close(16 [pid 5039] <... mkdir resumed>) = 0 [pid 5616] <... write resumed>) = 4 [pid 5615] close(10 [pid 5614] close(9 [pid 5613] close(11 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5616] close(3 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] close(17 [pid 5615] close(11) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5617 attached [pid 5616] <... close resumed>) = 0 [pid 5615] close(12 [pid 5614] close(10 [pid 5613] close(12 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] read(200, [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] close(18 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 82 [pid 5617] set_robust_list(0x555556f426e0, 24 [pid 5616] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5615] close(13 [pid 5614] close(11 [pid 5613] close(13 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... set_robust_list resumed>) = 0 [pid 5616] symlink("/dev/binderfs", "./binderfs" [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... symlink resumed>) = 0 [pid 5615] close(14 [pid 5614] close(12 [pid 5613] close(14 [pid 5612] close(19 [pid 5617] chdir("./80") = 0 [pid 5616] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5616] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(15 [pid 5614] close(13 [pid 5613] close(15 [pid 5617] <... prctl resumed>) = 0 [pid 5616] close(3 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] close(20 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(16 [pid 5614] close(14 [pid 5613] close(16 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] setpgid(0, 0 [pid 5616] close(4 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... setpgid resumed>) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(17 [pid 5614] close(15 [pid 5613] close(17 [pid 5612] close(21 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(18 [pid 5614] close(16 [pid 5613] close(18 [pid 5616] close(5 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(19 [pid 5614] close(17 [pid 5613] close(19 [pid 5612] close(22 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... symlink resumed>) = 0 [pid 5616] close(6 [pid 5615] close(20 [pid 5614] close(18 [pid 5613] close(20 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(21 [pid 5614] close(19 [pid 5617] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5613] close(21 [pid 5612] close(23 [pid 5617] <... symlink resumed>) = 0 [pid 5616] close(7 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(22 [pid 5614] close(20 [pid 5613] close(22 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] close(8 [pid 5615] close(23 [pid 5614] close(21 [pid 5613] close(23 [pid 5612] close(24 [pid 5617] <... symlink resumed>) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5616] close(9 [pid 5615] close(24 [pid 5614] close(22 [pid 5613] close(24 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] <... openat resumed>) = 3 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] write(3, "1000", 4 [pid 5616] close(10 [pid 5615] close(25 [pid 5614] close(23 [pid 5613] close(25 [pid 5612] close(25 [pid 5617] <... write resumed>) = 4 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] close(3 [pid 5616] close(11 [pid 5612] close(26 [pid 5617] <... close resumed>) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] read(200, [pid 5616] close(12 [pid 5612] close(27 [pid 5617] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] symlink("/dev/binderfs", "./binderfs" [pid 5616] close(13 [pid 5615] close(26 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] close(28 [pid 5617] <... symlink resumed>) = 0 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(24 [pid 5613] close(26 [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5616] close(14 [pid 5615] close(27 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] close(29 [pid 5617] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] close(3 [pid 5616] close(15 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(25 [pid 5613] close(27 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(28 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5617] close(4 [pid 5616] close(16 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(26 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5612] <... write resumed>) = 335 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] close(29 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] close(28 [pid 5612] exit_group(0 [pid 5617] close(5 [pid 5616] close(17 [pid 5615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] close(27 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] close(29 [pid 5612] <... exit_group resumed>) = ? [pid 5617] close(6 [pid 5616] close(18 [pid 5615] <... write resumed>) = 335 [pid 5614] close(28 [pid 5613] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] exit_group(0 [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5617] close(7 [pid 5616] close(19 [pid 5615] <... exit_group resumed>) = ? [pid 5614] close(29 [pid 5613] <... write resumed>) = 335 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5615] +++ exited with 0 +++ [pid 5614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5613] exit_group(0 [pid 5612] +++ exited with 0 +++ [pid 5617] close(8 [pid 5616] close(20write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5614] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5613] <... exit_group resumed>) = ? [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... write resumed>) = 335 [pid 5613] +++ exited with 0 +++ [pid 5043] restart_syscall(<... resuming interrupted clone ...> [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5617] close(9 [pid 5616] close(21 [pid 5614] exit_group(0 [pid 5043] <... restart_syscall resumed>) = 0 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5614] <... exit_group resumed>) = ? [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5617] close(10 [pid 5616] close(22 [pid 5614] +++ exited with 0 +++ [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5617] close(11 [pid 5616] close(23 [pid 5045] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] close(12 [pid 5616] close(24 [pid 5045] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5043] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... restart_syscall resumed>) = 0 [pid 5043] <... openat resumed>) = 3 [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, [pid 5617] close(13 [pid 5045] <... openat resumed>) = 3 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] close(25 [pid 5045] fstat(3, [pid 5044] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] close(14 [pid 5044] <... openat resumed>) = 3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] fstat(3, [pid 5043] lstat("./86/binderfs", [pid 5040] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] close(26 [pid 5045] getdents64(3, [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] getdents64(3, [pid 5043] unlink("./86/binderfs" [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5617] close(15 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5616] close(27 [pid 5044] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./86/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] fstat(3, [pid 5617] close(16 [pid 5616] close(28 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./89/binderfs", [pid 5043] lstat("./86/cgroup.net", [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./91/binderfs", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5617] close(17 [pid 5616] close(29 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] unlink("./89/binderfs" [pid 5043] unlink("./86/cgroup.net" [pid 5040] getdents64(3, [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./91/binderfs" [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5617] close(18 [pid 5616] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./89/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./86/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... write resumed>) = 335 [pid 5045] umount2("./91/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] close(19 [pid 5616] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./89/cgroup.net", [pid 5043] lstat("./86/cgroup.cpu", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./83/binderfs", [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] <... exit_group resumed>) = ? [pid 5045] lstat("./91/cgroup.net", [pid 5044] unlink("./89/cgroup.net" [pid 5043] unlink("./86/cgroup.cpu" [pid 5617] close(20 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5616] +++ exited with 0 +++ [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] umount2("./89/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] unlink("./83/binderfs" [pid 5617] close(21 [pid 5045] unlink("./91/cgroup.net" [pid 5040] <... unlink resumed>) = 0 [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./86/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./83/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] close(22 [pid 5045] umount2("./91/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./89/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5040] lstat("./83/cgroup.net", [pid 5617] close(23 [pid 5045] lstat("./91/cgroup.cpu", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./86/cgroup", [pid 5042] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] unlink("./89/cgroup.cpu" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5617] close(24 [pid 5045] unlink("./91/cgroup.cpu" [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./86/cgroup" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./83/cgroup.net" [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./89/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5042] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... unlink resumed>) = 0 [pid 5617] close(25 [pid 5045] umount2("./91/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] getdents64(3, [pid 5042] <... openat resumed>) = 3 [pid 5040] umount2("./83/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./89/cgroup", [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] fstat(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] close(26 [pid 5045] lstat("./91/cgroup", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] close(3 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] lstat("./83/cgroup.cpu", [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] unlink("./89/cgroup" [pid 5043] <... close resumed>) = 0 [pid 5042] getdents64(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5617] close(27 [pid 5045] unlink("./91/cgroup" [pid 5044] <... unlink resumed>) = 0 [pid 5043] rmdir("./86" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] unlink("./83/cgroup.cpu" [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5043] <... rmdir resumed>) = 0 [pid 5042] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5617] close(28 [pid 5045] getdents64(3, [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] mkdir("./87", 0777 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./83/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] close(3 [pid 5042] lstat("./85/binderfs", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] close(29 [pid 5045] close(3 [pid 5044] <... close resumed>) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] lstat("./83/cgroup", [pid 5617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] rmdir("./89" [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] unlink("./85/binderfs" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5617] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] rmdir("./91" [pid 5042] <... unlink resumed>) = 0 [pid 5040] unlink("./83/cgroup" [pid 5617] <... write resumed>) = 335 [pid 5045] <... rmdir resumed>) = 0 [pid 5042] umount2("./85/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5617] exit_group(0 [pid 5045] mkdir("./92", 0777 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] getdents64(3, [pid 5617] <... exit_group resumed>) = ? [pid 5045] <... mkdir resumed>) = 0 [pid 5042] lstat("./85/cgroup.net", [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5618 attached [pid 5617] +++ exited with 0 +++ [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... rmdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] close(3 [pid 5618] set_robust_list(0x555556f426e0, 24 [pid 5044] mkdir("./90", 0777 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 89 [pid 5618] <... set_robust_list resumed>) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5042] unlink("./85/cgroup.net" [pid 5040] <... close resumed>) = 0 [pid 5618] chdir("./87" [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5619 attached [pid 5618] <... chdir resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] rmdir("./83" [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5620 attached [pid 5619] set_robust_list(0x555556f426e0, 24 [pid 5618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 94 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 92 [pid 5042] umount2("./85/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... rmdir resumed>) = 0 [pid 5620] set_robust_list(0x555556f426e0, 24 [pid 5619] <... set_robust_list resumed>) = 0 [pid 5618] <... prctl resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] mkdir("./84", 0777 [pid 5620] <... set_robust_list resumed>) = 0 [pid 5619] chdir("./92" [pid 5618] setpgid(0, 0 [pid 5042] lstat("./85/cgroup.cpu", [pid 5040] <... mkdir resumed>) = 0 [pid 5039] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5620] chdir("./90" [pid 5619] <... chdir resumed>) = 0 [pid 5618] <... setpgid resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5621 attached [pid 5620] <... chdir resumed>) = 0 [pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5618] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5042] unlink("./85/cgroup.cpu" [pid 5039] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5621] set_robust_list(0x555556f426e0, 24 [pid 5620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5619] <... prctl resumed>) = 0 [pid 5618] <... symlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 86 [pid 5039] <... openat resumed>) = 3 [pid 5621] <... set_robust_list resumed>) = 0 [pid 5620] <... prctl resumed>) = 0 [pid 5619] setpgid(0, 0 [pid 5618] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5042] umount2("./85/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] fstat(3, [pid 5621] chdir("./84" [pid 5620] setpgid(0, 0 [pid 5619] <... setpgid resumed>) = 0 [pid 5618] <... symlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5621] <... chdir resumed>) = 0 [pid 5620] <... setpgid resumed>) = 0 [pid 5619] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5618] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5042] lstat("./85/cgroup", [pid 5039] getdents64(3, [pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5620] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5619] <... symlink resumed>) = 0 [pid 5618] <... symlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5621] <... prctl resumed>) = 0 [pid 5620] <... symlink resumed>) = 0 [pid 5619] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5042] unlink("./85/cgroup" [pid 5039] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5621] setpgid(0, 0 [pid 5620] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5619] <... symlink resumed>) = 0 [pid 5618] <... openat resumed>) = 3 [pid 5621] <... setpgid resumed>) = 0 [pid 5620] <... symlink resumed>) = 0 [pid 5619] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5618] write(3, "1000", 4 [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5621] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5620] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5621] <... symlink resumed>) = 0 [pid 5619] <... symlink resumed>) = 0 [pid 5618] <... write resumed>) = 4 [pid 5042] getdents64(3, [pid 5039] lstat("./80/binderfs", [pid 5621] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5620] <... symlink resumed>) = 0 [pid 5621] <... symlink resumed>) = 0 [pid 5620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5618] close(3 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5621] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5620] <... openat resumed>) = 3 [pid 5619] <... openat resumed>) = 3 [pid 5618] <... close resumed>) = 0 [pid 5042] close(3 [pid 5039] unlink("./80/binderfs" [pid 5621] <... symlink resumed>) = 0 [pid 5620] write(3, "1000", 4 [pid 5619] write(3, "1000", 4 [pid 5618] read(200, [pid 5042] <... close resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5620] <... write resumed>) = 4 [pid 5619] <... write resumed>) = 4 [pid 5618] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] rmdir("./85" [pid 5039] umount2("./80/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5621] <... openat resumed>) = 3 [pid 5620] close(3 [pid 5619] close(3 [pid 5618] symlink("/dev/binderfs", "./binderfs" [pid 5621] write(3, "1000", 4 [pid 5620] <... close resumed>) = 0 [pid 5619] <... close resumed>) = 0 [pid 5618] <... symlink resumed>) = 0 [pid 5042] <... rmdir resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5621] <... write resumed>) = 4 [pid 5620] read(200, [pid 5619] read(200, [pid 5618] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5621] close(3 [pid 5620] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5619] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5618] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./86", 0777 [pid 5039] lstat("./80/cgroup.net", [pid 5621] <... close resumed>) = 0 [pid 5620] symlink("/dev/binderfs", "./binderfs" [pid 5621] read(200, [pid 5619] symlink("/dev/binderfs", "./binderfs" [pid 5618] close(3 [pid 5042] <... mkdir resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5621] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5620] <... symlink resumed>) = 0 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] unlink("./80/cgroup.net" [pid 5621] symlink("/dev/binderfs", "./binderfs" [pid 5620] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5619] <... symlink resumed>) = 0 [pid 5618] close(4 [pid 5621] <... symlink resumed>) = 0 [pid 5619] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5621] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5620] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(3 [pid 5618] close(5 [pid 5039] umount2("./80/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5622 attached [pid 5621] close(3 [pid 5619] close(3 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] set_robust_list(0x555556f426e0, 24 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5622] <... set_robust_list resumed>) = 0 [pid 5621] close(4 [pid 5620] close(4 [pid 5618] close(6 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 88 [pid 5622] chdir("./86" [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(4 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./80/cgroup.cpu", [pid 5622] <... chdir resumed>) = 0 [pid 5621] close(5 [pid 5622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(5 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(7 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5622] <... prctl resumed>) = 0 [pid 5621] close(6 [pid 5622] setpgid(0, 0 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(5 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./80/cgroup.cpu" [pid 5622] <... setpgid resumed>) = 0 [pid 5621] close(7 [pid 5622] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(6 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(8 [pid 5039] <... unlink resumed>) = 0 [pid 5622] <... symlink resumed>) = 0 [pid 5621] close(8 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(6 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./80/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5622] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(7 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(9 [pid 5622] <... symlink resumed>) = 0 [pid 5621] close(9 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(7 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5622] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(8 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(10 [pid 5622] <... symlink resumed>) = 0 [pid 5621] close(10 [pid 5039] lstat("./80/cgroup", [pid 5622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(8 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] <... openat resumed>) = 3 [pid 5621] close(11 [pid 5620] close(9 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(11 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5622] write(3, "1000", 4 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(9 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] unlink("./80/cgroup" [pid 5622] <... write resumed>) = 4 [pid 5621] close(12 [pid 5620] close(10 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(12 [pid 5622] close(3 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5622] <... close resumed>) = 0 [pid 5621] close(13 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(10 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] read(200, [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(11 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(13 [pid 5039] getdents64(3, [pid 5622] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5621] close(14 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] symlink("/dev/binderfs", "./binderfs" [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(12 [pid 5619] close(11 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5622] <... symlink resumed>) = 0 [pid 5621] close(15 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(13 [pid 5622] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(16 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(14 [pid 5039] close(3 [pid 5622] close(3 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(14 [pid 5619] close(12 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... close resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(17 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(15 [pid 5622] close(4 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(15 [pid 5039] rmdir("./80" [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(18 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(13 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... rmdir resumed>) = 0 [pid 5622] close(5 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(16 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(16 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(19 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] mkdir("./81", 0777 [pid 5622] close(6 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(17 [pid 5619] close(14 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... mkdir resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(20 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(17 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5622] close(7 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(18 [pid 5619] close(15 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5623 attached [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(21 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(18 [pid 5623] set_robust_list(0x555556f426e0, 24 [pid 5622] close(8 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(19 [pid 5619] close(16 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 83 [pid 5623] <... set_robust_list resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(22 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] chdir("./81" [pid 5622] close(9 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(20 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(19 [pid 5623] <... chdir resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(23 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(17 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5622] close(10 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(21 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(20 [pid 5623] <... prctl resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(24 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(18 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] setpgid(0, 0 [pid 5622] close(11 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(22 [pid 5623] <... setpgid resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(25 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(21 [pid 5623] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5622] close(12 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(23 [pid 5619] close(19 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] <... symlink resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(26 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(22 [pid 5623] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5622] close(13 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(24 [pid 5623] <... symlink resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(27 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(20 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5622] close(14 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(25 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(23 [pid 5623] <... symlink resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(28 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(21 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5622] close(15 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(26 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] close(29 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(24 [pid 5623] <... openat resumed>) = 3 [pid 5622] close(16 [pid 5621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] close(27 [pid 5619] close(22 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] write(3, "1000", 4 [pid 5622] close(17 [pid 5621] <... write resumed>) = 335 [pid 5620] close(28 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(25 [pid 5623] <... write resumed>) = 4 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] exit_group(0 [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] close(3 [pid 5622] close(18 [pid 5621] <... exit_group resumed>) = ? [pid 5620] close(29 [pid 5619] close(23 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] <... close resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5621] +++ exited with 0 +++ [pid 5620] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5623] read(200, [pid 5622] close(19 [pid 5620] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(26 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5623] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... write resumed>) = 335 [pid 5619] close(24 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5623] symlink("/dev/binderfs", "./binderfs" [pid 5622] close(20 [pid 5620] exit_group(0 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(27 [pid 5623] <... symlink resumed>) = 0 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5620] <... exit_group resumed>) = ? [pid 5619] close(25 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5623] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5622] close(21 [pid 5620] +++ exited with 0 +++ [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(28 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5623] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(26 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5623] close(3 [pid 5622] close(22 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] close(29 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5040] <... openat resumed>) = 3 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(27 [pid 5618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] fstat(3, [pid 5623] close(4 [pid 5622] close(23 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5618] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(28 [pid 5618] <... write resumed>) = 335 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5623] close(5 [pid 5622] close(24 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5618] exit_group(0 [pid 5044] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] close(29 [pid 5618] <... exit_group resumed>) = ? [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] getdents64(3, [pid 5623] close(6 [pid 5622] close(25 [pid 5619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... openat resumed>) = 3 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5623] close(7 [pid 5622] close(26 [pid 5619] <... write resumed>) = 335 [pid 5618] +++ exited with 0 +++ [pid 5044] fstat(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] exit_group(0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5040] lstat("./84/binderfs", [pid 5623] close(8 [pid 5622] close(27 [pid 5619] <... exit_group resumed>) = ? [pid 5044] getdents64(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] unlink("./84/binderfs" [pid 5622] close(28 [pid 5044] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5623] close(9 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./84/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] close(29 [pid 5044] lstat("./90/binderfs", [pid 5043] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5623] close(10 [pid 5622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5619] +++ exited with 0 +++ [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... openat resumed>) = 3 [pid 5040] lstat("./84/cgroup.net", write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5044] unlink("./90/binderfs" [pid 5043] fstat(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5623] close(11 [pid 5622] <... write resumed>) = 335 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] unlink("./84/cgroup.net" [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] exit_group(0 [pid 5044] umount2("./90/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] getdents64(3, [pid 5040] <... unlink resumed>) = 0 [pid 5623] close(12 [pid 5622] <... exit_group resumed>) = ? [pid 5045] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] umount2("./84/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5622] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./90/cgroup.net", [pid 5043] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5623] close(13 [pid 5045] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./84/cgroup.cpu", [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] unlink("./90/cgroup.net" [pid 5043] lstat("./87/binderfs", [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5623] close(14 [pid 5045] fstat(3, [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5040] unlink("./84/cgroup.cpu" [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] umount2("./90/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./87/binderfs" [pid 5042] <... restart_syscall resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5623] close(15 [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5040] umount2("./84/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] lstat("./90/cgroup.cpu", [pid 5043] umount2("./87/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5623] close(16 [pid 5045] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./84/cgroup", [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./90/cgroup.cpu" [pid 5043] lstat("./87/cgroup.net", [pid 5042] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5623] close(17 [pid 5045] lstat("./92/binderfs", [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./84/cgroup" [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] umount2("./90/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./87/cgroup.net" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5623] close(18 [pid 5045] unlink("./92/binderfs" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5042] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] getdents64(3, [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./90/cgroup", [pid 5043] umount2("./87/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... openat resumed>) = 3 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5623] close(19 [pid 5045] umount2("./92/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] fstat(3, [pid 5040] close(3 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./90/cgroup" [pid 5043] lstat("./87/cgroup.cpu", [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... close resumed>) = 0 [pid 5623] close(20 [pid 5045] lstat("./92/cgroup.net", [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] rmdir("./84" [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] getdents64(3, [pid 5043] unlink("./87/cgroup.cpu" [pid 5042] getdents64(3, [pid 5040] <... rmdir resumed>) = 0 [pid 5623] close(21 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5045] unlink("./92/cgroup.net" [pid 5040] mkdir("./85", 0777 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5043] umount2("./87/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... mkdir resumed>) = 0 [pid 5623] close(22 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./92/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] rmdir("./90" [pid 5043] lstat("./87/cgroup", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5624 attached [pid 5623] close(23 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] lstat("./86/binderfs", [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 87 [pid 5624] set_robust_list(0x555556f426e0, 24 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./92/cgroup.cpu", [pid 5044] mkdir("./91", 0777 [pid 5043] unlink("./87/cgroup" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5624] <... set_robust_list resumed>) = 0 [pid 5623] close(24 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5624] chdir("./85" [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./92/cgroup.cpu" [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] getdents64(3, [pid 5042] unlink("./86/binderfs" [pid 5624] <... chdir resumed>) = 0 [pid 5623] close(25 [pid 5045] <... unlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./92/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] umount2("./86/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5625 attached [pid 5624] <... prctl resumed>) = 0 [pid 5623] close(26 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5625] set_robust_list(0x555556f426e0, 24 [pid 5624] setpgid(0, 0 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./92/cgroup", [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 93 [pid 5043] close(3 [pid 5625] <... set_robust_list resumed>) = 0 [pid 5624] <... setpgid resumed>) = 0 [pid 5623] close(27 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] lstat("./86/cgroup.net", [pid 5625] chdir("./91" [pid 5624] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./92/cgroup" [pid 5043] rmdir("./87" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5625] <... chdir resumed>) = 0 [pid 5624] <... symlink resumed>) = 0 [pid 5623] close(28 [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5624] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5042] unlink("./86/cgroup.net" [pid 5625] <... prctl resumed>) = 0 [pid 5624] <... symlink resumed>) = 0 [pid 5043] mkdir("./88", 0777 [pid 5625] setpgid(0, 0 [pid 5624] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5623] close(29 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5625] <... setpgid resumed>) = 0 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5626 attached [pid 5625] symlink("/syzcgroup/unified/syz5", "./cgroup"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5624] <... symlink resumed>) = 0 [pid 5623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5042] umount2("./86/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5626] set_robust_list(0x555556f426e0, 24 [pid 5625] <... symlink resumed>) = 0 [pid 5624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 90 [pid 5626] <... set_robust_list resumed>) = 0 [pid 5625] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5623] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... close resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5626] chdir("./88" [pid 5625] <... symlink resumed>) = 0 [pid 5624] <... openat resumed>) = 3 [pid 5623] <... write resumed>) = 335 [pid 5045] rmdir("./92" [pid 5042] lstat("./86/cgroup.cpu", [pid 5626] <... chdir resumed>) = 0 [pid 5625] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5625] <... symlink resumed>) = 0 [pid 5045] <... rmdir resumed>) = 0 [pid 5626] <... prctl resumed>) = 0 [pid 5625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5624] write(3, "1000", 4 [pid 5623] exit_group(0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5626] setpgid(0, 0 [pid 5625] <... openat resumed>) = 3 [pid 5624] <... write resumed>) = 4 [pid 5623] <... exit_group resumed>) = ? [pid 5045] mkdir("./93", 0777 [pid 5042] unlink("./86/cgroup.cpu" [pid 5626] <... setpgid resumed>) = 0 [pid 5625] write(3, "1000", 4 [pid 5624] close(3 [pid 5626] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5625] <... write resumed>) = 4 [pid 5626] <... symlink resumed>) = 0 [pid 5625] close(3 [pid 5624] <... close resumed>) = 0 [pid 5045] <... mkdir resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5626] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5625] <... close resumed>) = 0 [pid 5624] read(200, [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] umount2("./86/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5626] <... symlink resumed>) = 0 [pid 5625] read(200, [pid 5623] +++ exited with 0 +++ [pid 5626] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5625] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5626] <... symlink resumed>) = 0 [pid 5625] symlink("/dev/binderfs", "./binderfs" [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- ./strace-static-x86_64: Process 5627 attached [pid 5626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5625] <... symlink resumed>) = 0 [pid 5624] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5627] set_robust_list(0x555556f426e0, 24 [pid 5626] <... openat resumed>) = 3 [pid 5625] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5624] symlink("/dev/binderfs", "./binderfs" [pid 5039] <... restart_syscall resumed>) = 0 [pid 5627] <... set_robust_list resumed>) = 0 [pid 5626] write(3, "1000", 4 [pid 5625] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 95 [pid 5624] <... symlink resumed>) = 0 [pid 5042] lstat("./86/cgroup", [pid 5627] chdir("./93" [pid 5626] <... write resumed>) = 4 [pid 5625] close(3 [pid 5624] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5627] <... chdir resumed>) = 0 [pid 5626] close(3 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5039] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5626] <... close resumed>) = 0 [pid 5625] close(4 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5627] <... prctl resumed>) = 0 [pid 5626] read(200, [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(3 [pid 5042] unlink("./86/cgroup" [pid 5039] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5627] setpgid(0, 0 [pid 5626] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5625] close(5 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5627] <... setpgid resumed>) = 0 [pid 5626] symlink("/dev/binderfs", "./binderfs" [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(4 [pid 5039] fstat(3, [pid 5627] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5626] <... symlink resumed>) = 0 [pid 5625] close(6 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5627] <... symlink resumed>) = 0 [pid 5626] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(5 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] getdents64(3, [pid 5627] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5626] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(7 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5627] <... symlink resumed>) = 0 [pid 5626] close(3 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(6 [pid 5042] close(3 [pid 5039] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5627] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(8 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5627] <... symlink resumed>) = 0 [pid 5626] close(4 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(7 [pid 5042] rmdir("./86" [pid 5039] lstat("./81/binderfs", [pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(9 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... rmdir resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5627] <... openat resumed>) = 3 [pid 5626] close(5 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(8 [pid 5042] mkdir("./87", 0777 [pid 5039] unlink("./81/binderfs" [pid 5627] write(3, "1000", 4 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(10 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5627] <... write resumed>) = 4 [pid 5626] close(6 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(9 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] umount2("./81/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5628 attached [pid 5627] close(3 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(11 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5628] set_robust_list(0x555556f426e0, 24 [pid 5627] <... close resumed>) = 0 [pid 5626] close(7 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(10 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 89 [pid 5039] lstat("./81/cgroup.net", [pid 5628] <... set_robust_list resumed>) = 0 [pid 5627] read(200, [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(12 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5628] chdir("./87" [pid 5627] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5626] close(8 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(11 [pid 5039] unlink("./81/cgroup.net" [pid 5628] <... chdir resumed>) = 0 [pid 5627] symlink("/dev/binderfs", "./binderfs" [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(13 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5628] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5627] <... symlink resumed>) = 0 [pid 5626] close(9 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(12 [pid 5039] umount2("./81/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5628] <... prctl resumed>) = 0 [pid 5627] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(14 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5628] setpgid(0, 0 [pid 5627] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(10 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(13 [pid 5039] lstat("./81/cgroup.cpu", [pid 5628] <... setpgid resumed>) = 0 [pid 5627] close(3 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(15 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5628] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(11 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(14 [pid 5039] unlink("./81/cgroup.cpu" [pid 5628] <... symlink resumed>) = 0 [pid 5627] close(4 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(16 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5628] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(12 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(15 [pid 5039] umount2("./81/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5628] <... symlink resumed>) = 0 [pid 5627] close(5) = -1 EBADF (Bad file descriptor) [pid 5627] close(6) = -1 EBADF (Bad file descriptor) [pid 5627] close(7) = -1 EBADF (Bad file descriptor) [pid 5627] close(8) = -1 EBADF (Bad file descriptor) [pid 5627] close(9 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(17 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5628] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5627] close(10 [pid 5626] close(13 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(16 [pid 5039] lstat("./81/cgroup", [pid 5628] <... symlink resumed>) = 0 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(18 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5627] close(11 [pid 5626] close(14 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(17 [pid 5039] unlink("./81/cgroup" [pid 5628] <... openat resumed>) = 3 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(19 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] write(3, "1000", 4 [pid 5627] close(12 [pid 5626] close(15 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(18 [pid 5039] <... unlink resumed>) = 0 [pid 5628] <... write resumed>) = 4 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(20 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] getdents64(3, [pid 5628] close(3 [pid 5627] close(13 [pid 5626] close(16 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(19 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5628] <... close resumed>) = 0 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(21 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] close(3 [pid 5628] read(200, [pid 5627] close(14 [pid 5626] close(17 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(20 [pid 5628] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(22 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... close resumed>) = 0 [pid 5628] symlink("/dev/binderfs", "./binderfs" [pid 5626] close(18 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(21 [pid 5039] rmdir("./81" [pid 5627] close(15 [pid 5628] <... symlink resumed>) = 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(23 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... rmdir resumed>) = 0 [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5627] close(16 [pid 5628] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(19 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(22 [pid 5039] mkdir("./82", 0777 [pid 5628] close(3 [pid 5627] close(17 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(24 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... mkdir resumed>) = 0 [pid 5628] close(4 [pid 5627] close(18 [pid 5626] close(20 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(23 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(25 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5628] close(5 [pid 5627] close(19 [pid 5626] close(21 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(24 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(26 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5629 attached [pid 5628] close(6 [pid 5627] close(20 [pid 5626] close(22 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] close(25 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(7 [pid 5627] close(21 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(27 [pid 5624] close(26 [pid 5629] set_robust_list(0x555556f426e0, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 84 [pid 5629] <... set_robust_list resumed>) = 0 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(23 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] chdir("./82" [pid 5628] close(8 [pid 5627] close(22 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(28 [pid 5624] close(27 [pid 5629] <... chdir resumed>) = 0 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(24 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5628] close(9 [pid 5627] close(23 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] close(29 [pid 5624] close(28 [pid 5629] <... prctl resumed>) = 0 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(25 [pid 5625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5629] setpgid(0, 0 [pid 5628] close(10 [pid 5627] close(24 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5624] close(29 [pid 5629] <... setpgid resumed>) = 0 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(26 [pid 5625] <... write resumed>) = 335 [pid 5624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5628] close(11 [pid 5627] close(25 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] exit_group(0 [pid 5624] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5629] <... symlink resumed>) = 0 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] close(27 [pid 5625] <... exit_group resumed>) = ? [pid 5624] <... write resumed>) = 335 [pid 5629] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5628] close(12 [pid 5627] close(26 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5625] +++ exited with 0 +++ [pid 5624] exit_group(0 [pid 5629] <... symlink resumed>) = 0 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(13 [pid 5627] close(27 [pid 5626] close(28 [pid 5624] <... exit_group resumed>) = ? [pid 5629] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] close(28) = -1 EBADF (Bad file descriptor) [pid 5628] close(14 [pid 5627] close(29 [pid 5626] close(29 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5624] +++ exited with 0 +++ [pid 5629] <... symlink resumed>) = 0 [pid 5626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(15 [pid 5627] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... write resumed>) = 335 [pid 5626] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5629] <... openat resumed>) = 3 [pid 5628] close(16 [pid 5627] exit_group(0 [pid 5626] <... write resumed>) = 335 [pid 5044] <... restart_syscall resumed>) = 0 [pid 5629] write(3, "1000", 4 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] <... exit_group resumed>) = ? [pid 5626] exit_group(0 [pid 5629] <... write resumed>) = 4 [pid 5628] close(17 [pid 5626] <... exit_group resumed>) = ? [pid 5629] close(3 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5627] +++ exited with 0 +++ [pid 5626] +++ exited with 0 +++ [pid 5044] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] <... close resumed>) = 0 [pid 5628] close(18 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] read(200, [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5044] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5629] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5628] close(19 [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5044] <... openat resumed>) = 3 [pid 5043] restart_syscall(<... resuming interrupted clone ...> [pid 5040] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5629] symlink("/dev/binderfs", "./binderfs" [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... restart_syscall resumed>) = 0 [pid 5044] fstat(3, [pid 5043] <... restart_syscall resumed>) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5629] <... symlink resumed>) = 0 [pid 5628] close(20 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] fstat(3, [pid 5629] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5629] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(21 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] getdents64(3, [pid 5629] close(3 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(22 [pid 5045] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] close(4 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] lstat("./91/binderfs", [pid 5043] <... openat resumed>) = 3 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(23 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] fstat(3, [pid 5040] lstat("./85/binderfs", [pid 5629] close(5 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] unlink("./91/binderfs" [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(24 [pid 5045] <... openat resumed>) = 3 [pid 5044] <... unlink resumed>) = 0 [pid 5043] getdents64(3, [pid 5040] unlink("./85/binderfs" [pid 5629] close(6 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./91/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... unlink resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(25 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./85/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] close(7 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] lstat("./91/cgroup.net", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(26 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./88/binderfs", [pid 5040] lstat("./85/cgroup.net", [pid 5629] close(8 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5044] unlink("./91/cgroup.net" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(27 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./88/binderfs" [pid 5040] unlink("./85/cgroup.net" [pid 5629] close(9 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./91/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(28 [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./88/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./85/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] close(10 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] lstat("./91/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] close(29 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./88/cgroup.net", [pid 5040] lstat("./85/cgroup.cpu", [pid 5629] close(11 [pid 5628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./91/cgroup.cpu" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./88/cgroup.net" [pid 5040] unlink("./85/cgroup.cpu" [pid 5629] close(12 [pid 5628] <... write resumed>) = 335 [pid 5045] lstat("./93/binderfs", [pid 5044] umount2("./91/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] exit_group(0 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./88/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./85/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] close(13 [pid 5628] <... exit_group resumed>) = ? [pid 5044] lstat("./91/cgroup", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5628] +++ exited with 0 +++ [pid 5045] unlink("./93/binderfs" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] lstat("./88/cgroup.cpu", [pid 5040] lstat("./85/cgroup", [pid 5629] close(14 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./91/cgroup" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./93/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./88/cgroup.cpu" [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5040] unlink("./85/cgroup" [pid 5629] close(15 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... restart_syscall resumed>) = 0 [pid 5045] lstat("./93/cgroup.net", [pid 5044] getdents64(3, [pid 5043] umount2("./88/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] getdents64(3, [pid 5629] close(16 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./93/cgroup.net" [pid 5044] close(3 [pid 5043] lstat("./88/cgroup", [pid 5042] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5629] close(17 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5040] close(3 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./93/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] rmdir("./91" [pid 5043] unlink("./88/cgroup" [pid 5040] <... close resumed>) = 0 [pid 5629] close(18 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] fstat(3, [pid 5040] rmdir("./85" [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./93/cgroup.cpu", [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] getdents64(3, [pid 5040] <... rmdir resumed>) = 0 [pid 5629] close(19 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] mkdir("./92", 0777 [pid 5043] getdents64(3, [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] mkdir("./86", 0777 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./93/cgroup.cpu" [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... mkdir resumed>) = 0 [pid 5629] close(20 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... unlink resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] close(3 [pid 5042] lstat("./87/binderfs", [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5629] close(21 [pid 5045] umount2("./93/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] unlink("./87/binderfs") = 0 [pid 5042] umount2("./87/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5042] lstat("./87/cgroup.net", ./strace-static-x86_64: Process 5631 attached ./strace-static-x86_64: Process 5630 attached [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... close resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5631] set_robust_list(0x555556f426e0, 24 [pid 5630] set_robust_list(0x555556f426e0, 24 [pid 5629] close(22 [pid 5045] lstat("./93/cgroup", [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 94 [pid 5043] rmdir("./88" [pid 5042] unlink("./87/cgroup.net" [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 88 [pid 5631] <... set_robust_list resumed>) = 0 [pid 5630] <... set_robust_list resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5631] chdir("./86" [pid 5630] chdir("./92" [pid 5629] close(23 [pid 5045] unlink("./93/cgroup" [pid 5043] mkdir("./89", 0777 [pid 5042] <... unlink resumed>) = 0 [pid 5631] <... chdir resumed>) = 0 [pid 5630] <... chdir resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5629] close(24 [pid 5045] getdents64(3, [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] umount2("./87/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5631] <... prctl resumed>) = 0 [pid 5630] <... prctl resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5632 attached [pid 5631] setpgid(0, 0 [pid 5630] setpgid(0, 0 [pid 5629] close(25 [pid 5045] close(3 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] set_robust_list(0x555556f426e0, 24 [pid 5631] <... setpgid resumed>) = 0 [pid 5630] <... setpgid resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 91 [pid 5632] <... set_robust_list resumed>) = 0 [pid 5631] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5630] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5629] close(26 [pid 5045] rmdir("./93" [pid 5042] lstat("./87/cgroup.cpu", [pid 5632] chdir("./89" [pid 5631] <... symlink resumed>) = 0 [pid 5630] <... symlink resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5632] <... chdir resumed>) = 0 [pid 5631] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5630] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5629] close(27 [pid 5042] unlink("./87/cgroup.cpu" [pid 5632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5631] <... symlink resumed>) = 0 [pid 5630] <... symlink resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./94", 0777 [pid 5042] <... unlink resumed>) = 0 [pid 5632] <... prctl resumed>) = 0 [pid 5631] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5630] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5042] umount2("./87/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5632] setpgid(0, 0 [pid 5631] <... symlink resumed>) = 0 [pid 5630] <... symlink resumed>) = 0 [pid 5629] close(28 [pid 5045] <... mkdir resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5632] <... setpgid resumed>) = 0 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] lstat("./87/cgroup", [pid 5632] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5631] <... openat resumed>) = 3 [pid 5630] <... openat resumed>) = 3 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5632] <... symlink resumed>) = 0 [pid 5630] write(3, "1000", 4 [pid 5042] unlink("./87/cgroup" [pid 5632] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5630] <... write resumed>) = 4 [pid 5042] <... unlink resumed>) = 0 [pid 5632] <... symlink resumed>) = 0 [pid 5630] close(3 [pid 5629] close(29 [pid 5042] getdents64(3, [pid 5632] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5630] <... close resumed>) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5632] <... symlink resumed>) = 0 [pid 5630] read(200, [pid 5042] close(3./strace-static-x86_64: Process 5633 attached [pid 5632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5630] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] <... close resumed>) = 0 [pid 5629] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5631] write(3, "1000", 4 [pid 5633] set_robust_list(0x555556f426e0, 24 [pid 5632] <... openat resumed>) = 3 [pid 5630] symlink("/dev/binderfs", "./binderfs" [pid 5629] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 96 [pid 5042] rmdir("./87" [pid 5633] <... set_robust_list resumed>) = 0 [pid 5632] write(3, "1000", 4 [pid 5631] <... write resumed>) = 4 [pid 5630] <... symlink resumed>) = 0 [pid 5629] <... write resumed>) = 335 [pid 5042] <... rmdir resumed>) = 0 [pid 5633] chdir("./94" [pid 5632] <... write resumed>) = 4 [pid 5631] close(3 [pid 5630] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5629] exit_group(0 [pid 5042] mkdir("./88", 0777 [pid 5633] <... chdir resumed>) = 0 [pid 5632] close(3 [pid 5631] <... close resumed>) = 0 [pid 5630] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5629] <... exit_group resumed>) = ? [pid 5042] <... mkdir resumed>) = 0 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5632] <... close resumed>) = 0 [pid 5630] close(3 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5633] <... prctl resumed>) = 0 [pid 5632] read(200, [pid 5631] read(200, [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5634 attached [pid 5633] setpgid(0, 0 [pid 5632] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5631] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5630] close(4 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 90 [pid 5634] set_robust_list(0x555556f426e0, 24 [pid 5633] <... setpgid resumed>) = 0 [pid 5632] symlink("/dev/binderfs", "./binderfs" [pid 5631] symlink("/dev/binderfs", "./binderfs" [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] <... set_robust_list resumed>) = 0 [pid 5633] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5632] <... symlink resumed>) = 0 [pid 5631] <... symlink resumed>) = 0 [pid 5630] close(5 [pid 5633] <... symlink resumed>) = 0 [pid 5632] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5631] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5632] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(6 [pid 5634] chdir("./88") = 0 [pid 5633] <... symlink resumed>) = 0 [pid 5632] close(3 [pid 5631] close(3 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(7 [pid 5629] +++ exited with 0 +++ [pid 5634] <... prctl resumed>) = 0 [pid 5633] <... symlink resumed>) = 0 [pid 5632] close(4 [pid 5631] close(4 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] setpgid(0, 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(8 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5634] <... setpgid resumed>) = 0 [pid 5633] <... openat resumed>) = 3 [pid 5632] close(5 [pid 5631] close(5 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5634] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5633] write(3, "1000", 4 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(9 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5634] <... symlink resumed>) = 0 [pid 5633] <... write resumed>) = 4 [pid 5632] close(6 [pid 5631] close(6 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5634] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5633] close(3 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(10 [pid 5039] <... openat resumed>) = 3 [pid 5634] <... symlink resumed>) = 0 [pid 5633] <... close resumed>) = 0 [pid 5632] close(7 [pid 5631] close(7 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5634] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5633] read(200, [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(11 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5634] <... symlink resumed>) = 0 [pid 5633] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5632] close(8 [pid 5631] close(8 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] getdents64(3, [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] symlink("/dev/binderfs", "./binderfs" [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(12 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5634] <... openat resumed>) = 3 [pid 5633] <... symlink resumed>) = 0 [pid 5632] close(9 [pid 5631] close(9 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5634] write(3, "1000", 4 [pid 5633] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(13 [pid 5634] <... write resumed>) = 4 [pid 5634] close(3 [pid 5633] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(10 [pid 5631] close(10 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5634] <... close resumed>) = 0 [pid 5634] read(200, [pid 5633] close(3 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(14 [pid 5039] lstat("./82/binderfs", [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(11 [pid 5631] close(11 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5634] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5633] close(4 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(15 [pid 5039] unlink("./82/binderfs" [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(12 [pid 5631] close(12 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5634] symlink("/dev/binderfs", "./binderfs" [pid 5633] close(5 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(16 [pid 5039] umount2("./82/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(13 [pid 5631] close(13 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5634] <... symlink resumed>) = 0 [pid 5633] close(6 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(17 [pid 5039] lstat("./82/cgroup.net", [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(14 [pid 5631] close(14 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5633] close(7 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(18 [pid 5039] unlink("./82/cgroup.net" [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(15 [pid 5631] close(15 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5633] close(8 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(19 [pid 5039] umount2("./82/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5634] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(16 [pid 5631] close(16 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5634] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(9 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(20 [pid 5039] lstat("./82/cgroup.cpu", [pid 5634] close(3 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(17 [pid 5631] close(17 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(10 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(21 [pid 5039] unlink("./82/cgroup.cpu" [pid 5634] close(4 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(18 [pid 5631] close(18 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(11 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(22 [pid 5039] umount2("./82/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5634] close(5 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(19 [pid 5631] close(19 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(12 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(23 [pid 5039] lstat("./82/cgroup", [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(20 [pid 5631] close(20 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5634] close(6 [pid 5633] close(13 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(24 [pid 5039] unlink("./82/cgroup" [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(21 [pid 5631] close(21 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5634] close(7 [pid 5633] close(14 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(25 [pid 5039] getdents64(3, [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(22 [pid 5631] close(22 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5634] close(8 [pid 5633] close(15 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(26 [pid 5039] close(3 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(23 [pid 5631] close(23 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... close resumed>) = 0 [pid 5634] close(9 [pid 5633] close(16 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(27 [pid 5039] rmdir("./82" [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(24 [pid 5631] close(24 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... rmdir resumed>) = 0 [pid 5633] close(17 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(28 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] mkdir("./83", 0777 [pid 5634] close(10 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(25 [pid 5631] close(25 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... mkdir resumed>) = 0 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(18 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] close(29 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5634] close(11 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(26 [pid 5631] close(26 [pid 5630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(19 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5634] close(12 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(27 [pid 5631] close(27 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(20 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] <... write resumed>) = 335 [pid 5634] close(13 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5632] close(28 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5630] exit_group(0./strace-static-x86_64: Process 5635 attached [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(21 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(14 [pid 5631] close(28 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] close(29 [pid 5630] <... exit_group resumed>) = ? [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(15 [pid 5632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 85 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(16) = -1 EBADF (Bad file descriptor) [pid 5635] set_robust_list(0x555556f426e0, 24 [pid 5634] close(17 [pid 5633] close(22 [pid 5632] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5631] close(29 [pid 5635] <... set_robust_list resumed>) = 0 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] <... write resumed>) = 335 [pid 5631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(18 [pid 5632] exit_group(0 [pid 5631] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5633] close(23 [pid 5635] chdir("./83" [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5632] <... exit_group resumed>) = ? [pid 5630] +++ exited with 0 +++ [pid 5631] <... write resumed>) = 335 [pid 5635] <... chdir resumed>) = 0 [pid 5634] close(19 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(20) = -1 EBADF (Bad file descriptor) [pid 5634] close(21) = -1 EBADF (Bad file descriptor) [pid 5634] close(22) = -1 EBADF (Bad file descriptor) [pid 5634] close(23) = -1 EBADF (Bad file descriptor) [pid 5634] close(24 [pid 5633] close(24 [pid 5631] exit_group(0 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(25) = -1 EBADF (Bad file descriptor) [pid 5634] close(26 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5633] close(25 [pid 5631] <... exit_group resumed>) = ? [pid 5634] close(27 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5632] +++ exited with 0 +++ [pid 5631] +++ exited with 0 +++ [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5634] close(28) = -1 EBADF (Bad file descriptor) [pid 5633] close(26 [pid 5635] <... prctl resumed>) = 0 [pid 5634] close(29 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] setpgid(0, 0 [pid 5634] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5633] close(27 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5635] <... setpgid resumed>) = 0 [pid 5634] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335) = 335 [pid 5634] exit_group(0) = ? [pid 5635] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5634] +++ exited with 0 +++ [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5633] close(28 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5635] <... symlink resumed>) = 0 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5635] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5633] close(29 [pid 5044] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5635] <... symlink resumed>) = 0 [pid 5633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5635] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5633] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... openat resumed>) = 3 [pid 5043] <... openat resumed>) = 3 [pid 5042] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5635] <... symlink resumed>) = 0 [pid 5633] <... write resumed>) = 335 [pid 5044] fstat(3, [pid 5043] fstat(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] exit_group(0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... openat resumed>) = 3 [pid 5635] <... openat resumed>) = 3 [pid 5633] <... exit_group resumed>) = ? [pid 5044] getdents64(3, [pid 5043] getdents64(3, [pid 5042] <... openat resumed>) = 3 [pid 5635] write(3, "1000", 4 [pid 5633] +++ exited with 0 +++ [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] fstat(3, [pid 5040] fstat(3, [pid 5635] <... write resumed>) = 4 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5044] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5635] close(3 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] getdents64(3, [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5635] <... close resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./89/binderfs", [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5635] read(200, [pid 5044] lstat("./92/binderfs", [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] getdents64(3, [pid 5635] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5043] unlink("./89/binderfs" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5635] symlink("/dev/binderfs", "./binderfs" [pid 5045] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] lstat("./88/binderfs", [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5635] <... symlink resumed>) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./92/binderfs" [pid 5043] umount2("./89/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5635] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5045] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] unlink("./88/binderfs" [pid 5040] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5635] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./89/cgroup.net", [pid 5042] <... unlink resumed>) = 0 [pid 5635] close(3 [pid 5045] fstat(3, [pid 5044] umount2("./92/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] umount2("./88/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] unlink("./89/cgroup.net" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./86/binderfs", [pid 5635] close(4 [pid 5045] getdents64(3, [pid 5044] lstat("./92/cgroup.net", [pid 5043] <... unlink resumed>) = 0 [pid 5042] lstat("./88/cgroup.net", [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] umount2("./89/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5635] close(5 [pid 5045] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] unlink("./88/cgroup.net" [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./89/cgroup.cpu", [pid 5042] <... unlink resumed>) = 0 [pid 5635] close(6 [pid 5045] lstat("./94/binderfs", [pid 5044] unlink("./92/cgroup.net" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] umount2("./88/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] unlink("./86/binderfs" [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./89/cgroup.cpu" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5635] close(7 [pid 5045] unlink("./94/binderfs" [pid 5044] umount2("./92/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./86/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./92/cgroup.cpu", [pid 5040] lstat("./86/cgroup.net", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./92/cgroup.cpu" [pid 5043] <... unlink resumed>) = 0 [pid 5042] lstat("./88/cgroup.cpu", [pid 5040] unlink("./86/cgroup.net" [pid 5635] close(8 [pid 5045] umount2("./94/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./92/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./89/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./86/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5635] close(9 [pid 5045] lstat("./94/cgroup.net", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] unlink("./88/cgroup.cpu" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] lstat("./92/cgroup", [pid 5043] lstat("./89/cgroup", [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./86/cgroup.cpu", [pid 5635] close(10 [pid 5045] unlink("./94/cgroup.net" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] umount2("./88/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] unlink("./92/cgroup" [pid 5043] unlink("./89/cgroup" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./86/cgroup.cpu" [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] lstat("./88/cgroup", [pid 5040] <... unlink resumed>) = 0 [pid 5635] close(11 [pid 5045] umount2("./94/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] getdents64(3, [pid 5043] getdents64(3, [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] umount2("./86/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] unlink("./88/cgroup" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5635] close(12 [pid 5045] lstat("./94/cgroup.cpu", [pid 5044] close(3 [pid 5043] close(3 [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./86/cgroup", [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... close resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] getdents64(3, [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5635] close(13 [pid 5045] unlink("./94/cgroup.cpu" [pid 5044] rmdir("./92" [pid 5043] rmdir("./89" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] unlink("./86/cgroup" [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5042] close(3 [pid 5040] <... unlink resumed>) = 0 [pid 5635] close(14 [pid 5045] umount2("./94/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] mkdir("./93", 0777 [pid 5043] mkdir("./90", 0777 [pid 5042] <... close resumed>) = 0 [pid 5040] getdents64(3, [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] rmdir("./88" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5635] close(15 [pid 5045] lstat("./94/cgroup", [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... rmdir resumed>) = 0 [pid 5040] close(3./strace-static-x86_64: Process 5637 attached ./strace-static-x86_64: Process 5636 attached [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] mkdir("./89", 0777 [pid 5040] <... close resumed>) = 0 [pid 5637] set_robust_list(0x555556f426e0, 24 [pid 5636] set_robust_list(0x555556f426e0, 24 [pid 5635] close(16 [pid 5045] unlink("./94/cgroup" [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 95 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 92 [pid 5042] <... mkdir resumed>) = 0 [pid 5040] rmdir("./86" [pid 5637] <... set_robust_list resumed>) = 0 [pid 5636] <... set_robust_list resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] <... rmdir resumed>) = 0 [pid 5637] chdir("./90" [pid 5636] chdir("./93" [pid 5635] close(17 [pid 5045] getdents64(3, [pid 5637] <... chdir resumed>) = 0 [pid 5636] <... chdir resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] mkdir("./87", 0777./strace-static-x86_64: Process 5638 attached [pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5635] close(18 [pid 5045] close(3 [pid 5638] set_robust_list(0x555556f426e0, 24 [pid 5637] <... prctl resumed>) = 0 [pid 5636] <... prctl resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... mkdir resumed>) = 0 [pid 5638] <... set_robust_list resumed>) = 0 [pid 5637] setpgid(0, 0 [pid 5636] setpgid(0, 0 [pid 5635] close(19 [pid 5045] <... close resumed>) = 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 91 [pid 5637] <... setpgid resumed>) = 0 [pid 5636] <... setpgid resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./94" [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5638] chdir("./89" [pid 5637] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5636] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5635] close(20 [pid 5045] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5639 attached [pid 5638] <... chdir resumed>) = 0 [pid 5637] <... symlink resumed>) = 0 [pid 5636] <... symlink resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./95", 0777 [pid 5639] set_robust_list(0x555556f426e0, 24 [pid 5638] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5637] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5636] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5635] close(21 [pid 5045] <... mkdir resumed>) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 89 [pid 5639] <... set_robust_list resumed>) = 0 [pid 5638] <... prctl resumed>) = 0 [pid 5637] <... symlink resumed>) = 0 [pid 5636] <... symlink resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] chdir("./87" [pid 5638] setpgid(0, 0 [pid 5637] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5636] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5635] close(22 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5639] <... chdir resumed>) = 0 [pid 5638] <... setpgid resumed>) = 0 [pid 5637] <... symlink resumed>) = 0 [pid 5636] <... symlink resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5635] close(23 [pid 5639] <... prctl resumed>) = 0 [pid 5637] <... openat resumed>) = 3 [pid 5636] <... openat resumed>) = 3 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] setpgid(0, 0 [pid 5638] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5637] write(3, "1000", 4 [pid 5636] write(3, "1000", 4 [pid 5635] close(24 [pid 5639] <... setpgid resumed>) = 0 [pid 5638] <... symlink resumed>) = 0 [pid 5637] <... write resumed>) = 4 [pid 5636] <... write resumed>) = 4 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5640 attached [pid 5639] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5638] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5637] close(3 [pid 5636] close(3 [pid 5635] close(25 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 97 [pid 5640] set_robust_list(0x555556f426e0, 24 [pid 5639] <... symlink resumed>) = 0 [pid 5638] <... symlink resumed>) = 0 [pid 5637] <... close resumed>) = 0 [pid 5636] <... close resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... set_robust_list resumed>) = 0 [pid 5639] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5638] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5637] read(200, [pid 5636] read(200, [pid 5635] close(26 [pid 5640] chdir("./95" [pid 5639] <... symlink resumed>) = 0 [pid 5638] <... symlink resumed>) = 0 [pid 5637] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5636] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... chdir resumed>) = 0 [pid 5639] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5637] symlink("/dev/binderfs", "./binderfs" [pid 5636] symlink("/dev/binderfs", "./binderfs" [pid 5635] close(27 [pid 5639] <... symlink resumed>) = 0 [pid 5638] <... openat resumed>) = 3 [pid 5637] <... symlink resumed>) = 0 [pid 5636] <... symlink resumed>) = 0 [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5638] write(3, "1000", 4 [pid 5637] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5636] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5635] close(28 [pid 5639] <... openat resumed>) = 3 [pid 5638] <... write resumed>) = 4 [pid 5637] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] write(3, "1000", 4 [pid 5638] close(3 [pid 5637] close(3 [pid 5636] close(3 [pid 5635] close(29 [pid 5639] <... write resumed>) = 4 [pid 5638] <... close resumed>) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5639] close(3 [pid 5638] read(200, write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5637] close(4 [pid 5636] close(4 [pid 5635] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5640] <... prctl resumed>) = 0 [pid 5639] <... close resumed>) = 0 [pid 5638] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... write resumed>) = 335 [pid 5640] setpgid(0, 0 [pid 5639] read(200, [pid 5638] symlink("/dev/binderfs", "./binderfs" [pid 5637] close(5 [pid 5636] close(5 [pid 5635] exit_group(0 [pid 5640] <... setpgid resumed>) = 0 [pid 5639] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5638] <... symlink resumed>) = 0 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5635] <... exit_group resumed>) = ? [pid 5640] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5639] symlink("/dev/binderfs", "./binderfs" [pid 5638] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5637] close(6 [pid 5636] close(6 [pid 5640] <... symlink resumed>) = 0 [pid 5639] <... symlink resumed>) = 0 [pid 5638] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5639] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5638] close(3 [pid 5637] close(7 [pid 5636] close(7 [pid 5635] +++ exited with 0 +++ [pid 5640] <... symlink resumed>) = 0 [pid 5639] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5640] <... symlink resumed>) = 0 [pid 5639] close(3 [pid 5638] close(4 [pid 5637] close(8 [pid 5636] close(8 [pid 5640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... openat resumed>) = 3 [pid 5639] close(4 [pid 5638] close(5 [pid 5637] close(9 [pid 5636] close(9 [pid 5640] write(3, "1000", 4 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... write resumed>) = 4 [pid 5639] close(5 [pid 5638] close(6 [pid 5637] close(10 [pid 5636] close(10 [pid 5039] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5640] close(3 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = 0 [pid 5639] close(6 [pid 5638] close(7 [pid 5637] close(11 [pid 5636] close(11 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5640] read(200, [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5640] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5639] close(7 [pid 5638] close(8 [pid 5637] close(12 [pid 5636] close(12 [pid 5039] <... openat resumed>) = 3 [pid 5640] symlink("/dev/binderfs", "./binderfs" [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... symlink resumed>) = 0 [pid 5639] close(8 [pid 5638] close(9 [pid 5637] close(13 [pid 5636] close(13 [pid 5039] fstat(3, [pid 5640] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(9 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5640] close(3 [pid 5638] close(10 [pid 5637] close(14 [pid 5636] close(14 [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] getdents64(3, [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] close(10 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5640] close(4) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(11 [pid 5637] close(15 [pid 5636] close(15 [pid 5039] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5640] close(5 [pid 5639] close(11 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(12 [pid 5637] close(16 [pid 5636] close(16 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5640] close(6 [pid 5639] close(12 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(13 [pid 5039] lstat("./83/binderfs", [pid 5640] close(7 [pid 5639] close(13 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(17 [pid 5636] close(17 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(14 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] close(8 [pid 5639] close(14 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(18 [pid 5636] close(18 [pid 5039] unlink("./83/binderfs" [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(15 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] close(9 [pid 5639] close(15 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(19 [pid 5636] close(19 [pid 5039] <... unlink resumed>) = 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(16 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] close(10 [pid 5639] close(16 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(20 [pid 5039] umount2("./83/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(17 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(20 [pid 5640] close(11 [pid 5639] close(17 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(21 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(18 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5640] close(12 [pid 5639] close(18 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(22 [pid 5636] close(21 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(19 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./83/cgroup.net", [pid 5640] close(13 [pid 5639] close(19 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(23 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(20 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(22 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5640] close(14 [pid 5639] close(20 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(24 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(21 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(23 [pid 5039] unlink("./83/cgroup.net" [pid 5640] close(15 [pid 5639] close(21 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(25 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(22 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(24 [pid 5039] <... unlink resumed>) = 0 [pid 5640] close(16 [pid 5639] close(22 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(26 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(23 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(25 [pid 5039] umount2("./83/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5640] close(17 [pid 5639] close(23 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(27 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(24 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(26 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5640] close(18 [pid 5639] close(24 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(28 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(25 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(27 [pid 5039] lstat("./83/cgroup.cpu", [pid 5640] close(19 [pid 5639] close(25 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] close(29 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(26 [pid 5637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] close(28 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5640] close(20 [pid 5639] close(26write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(27 [pid 5637] <... write resumed>) = 335 [pid 5636] close(29 [pid 5039] unlink("./83/cgroup.cpu" [pid 5640] close(21 [pid 5639] close(27 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5637] exit_group(0 [pid 5636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(28 [pid 5637] <... exit_group resumed>) = ? [pid 5636] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] umount2("./83/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5640] close(22 [pid 5639] close(28 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... write resumed>) = 335 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] close(29 [pid 5637] +++ exited with 0 +++ [pid 5636] exit_group(0 [pid 5039] lstat("./83/cgroup", [pid 5640] close(23 [pid 5639] close(29 [pid 5638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5636] <... exit_group resumed>) = ? [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5638] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5640] close(24 [pid 5639] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5638] <... write resumed>) = 335 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] unlink("./83/cgroup" [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... write resumed>) = 335 [pid 5638] exit_group(0 [pid 5043] restart_syscall(<... resuming interrupted clone ...> [pid 5039] <... unlink resumed>) = 0 [pid 5640] close(25 [pid 5639] exit_group(0 [pid 5638] <... exit_group resumed>) = ? [pid 5636] +++ exited with 0 +++ [pid 5043] <... restart_syscall resumed>) = 0 [pid 5039] getdents64(3, 0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./83" [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5639] <... exit_group resumed>) = ? [pid 5638] +++ exited with 0 +++ [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5039] <... rmdir resumed>) = 0 [pid 5039] mkdir("./84", 0777 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5039] <... mkdir resumed>) = 0 [pid 5042] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5641 attached [pid 5640] close(26 [pid 5639] +++ exited with 0 +++ [pid 5043] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] set_robust_list(0x555556f426e0, 24 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5641] <... set_robust_list resumed>) = 0 [pid 5640] close(27 [pid 5044] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 86 [pid 5641] chdir("./84" [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... openat resumed>) = 3 [pid 5042] <... openat resumed>) = 3 [pid 5641] <... chdir resumed>) = 0 [pid 5640] close(28 [pid 5044] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] fstat(3, [pid 5040] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... openat resumed>) = 3 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] fstat(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] <... prctl resumed>) = 0 [pid 5640] close(29 [pid 5044] fstat(3, [pid 5043] getdents64(3, [pid 5040] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5641] setpgid(0, 0 [pid 5640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... openat resumed>) = 3 [pid 5641] <... setpgid resumed>) = 0 [pid 5640] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] getdents64(3, [pid 5043] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] getdents64(3, [pid 5040] fstat(3, [pid 5641] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5640] <... write resumed>) = 335 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5641] <... symlink resumed>) = 0 [pid 5640] exit_group(0 [pid 5044] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./90/binderfs", [pid 5042] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] getdents64(3, [pid 5641] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5640] <... exit_group resumed>) = ? [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5641] <... symlink resumed>) = 0 [pid 5640] +++ exited with 0 +++ [pid 5044] lstat("./93/binderfs", [pid 5043] unlink("./90/binderfs" [pid 5042] lstat("./89/binderfs", [pid 5040] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] <... symlink resumed>) = 0 [pid 5044] unlink("./93/binderfs" [pid 5043] umount2("./90/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] lstat("./87/binderfs", [pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] unlink("./89/binderfs" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5641] <... openat resumed>) = 3 [pid 5044] umount2("./93/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./90/cgroup.net", [pid 5040] unlink("./87/binderfs" [pid 5641] write(3, "1000", 4 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5641] <... write resumed>) = 4 [pid 5045] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./93/cgroup.net", [pid 5043] unlink("./90/cgroup.net" [pid 5040] umount2("./87/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] close(3 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] umount2("./89/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] <... close resumed>) = 0 [pid 5045] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] unlink("./93/cgroup.net" [pid 5043] umount2("./90/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./87/cgroup.net", [pid 5641] read(200, [pid 5045] <... openat resumed>) = 3 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5641] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5045] fstat(3, [pid 5044] umount2("./93/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./90/cgroup.cpu", [pid 5042] lstat("./89/cgroup.net", [pid 5040] unlink("./87/cgroup.net" [pid 5641] symlink("/dev/binderfs", "./binderfs" [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5641] <... symlink resumed>) = 0 [pid 5045] getdents64(3, [pid 5044] lstat("./93/cgroup.cpu", [pid 5043] unlink("./90/cgroup.cpu" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] umount2("./87/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./93/cgroup.cpu" [pid 5043] umount2("./90/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] unlink("./89/cgroup.net" [pid 5040] lstat("./87/cgroup.cpu", [pid 5641] close(3 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./95/binderfs", [pid 5044] umount2("./93/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./90/cgroup", [pid 5040] unlink("./87/cgroup.cpu" [pid 5641] close(4 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] umount2("./89/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./95/binderfs" [pid 5044] lstat("./93/cgroup", [pid 5043] unlink("./90/cgroup" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./87/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] close(5 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] lstat("./89/cgroup.cpu", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./95/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./93/cgroup" [pid 5043] getdents64(3, [pid 5040] lstat("./87/cgroup", [pid 5641] close(6 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./95/cgroup.net", [pid 5044] getdents64(3, [pid 5043] close(3 [pid 5040] unlink("./87/cgroup" [pid 5641] close(7 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... close resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./95/cgroup.net" [pid 5044] close(3 [pid 5043] rmdir("./90" [pid 5040] getdents64(3, [pid 5641] close(8 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5043] <... rmdir resumed>) = 0 [pid 5042] unlink("./89/cgroup.cpu" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./95/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] rmdir("./93" [pid 5043] mkdir("./91", 0777 [pid 5040] close(3 [pid 5641] close(9 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... close resumed>) = 0 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./95/cgroup.cpu", [pid 5044] mkdir("./94", 0777 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] rmdir("./87"./strace-static-x86_64: Process 5642 attached [pid 5641] close(10 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... mkdir resumed>) = 0 [pid 5042] umount2("./89/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... rmdir resumed>) = 0 [pid 5642] set_robust_list(0x555556f426e0, 24 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./95/cgroup.cpu" [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 93 [pid 5040] mkdir("./88", 0777./strace-static-x86_64: Process 5643 attached [pid 5642] <... set_robust_list resumed>) = 0 [pid 5641] close(11 [pid 5045] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... mkdir resumed>) = 0 [pid 5643] set_robust_list(0x555556f426e0, 24 [pid 5642] chdir("./91" [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./95/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 96 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5643] <... set_robust_list resumed>) = 0 [pid 5642] <... chdir resumed>) = 0 [pid 5641] close(12 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] lstat("./89/cgroup", ./strace-static-x86_64: Process 5644 attached [pid 5643] chdir("./94" [pid 5642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./95/cgroup", [pid 5643] <... chdir resumed>) = 0 [pid 5642] <... prctl resumed>) = 0 [pid 5641] close(13 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 90 [pid 5644] set_robust_list(0x555556f426e0, 24 [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5642] setpgid(0, 0 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./95/cgroup" [pid 5042] unlink("./89/cgroup" [pid 5644] <... set_robust_list resumed>) = 0 [pid 5643] <... prctl resumed>) = 0 [pid 5642] <... setpgid resumed>) = 0 [pid 5641] close(14 [pid 5045] <... unlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5644] chdir("./88" [pid 5643] setpgid(0, 0 [pid 5642] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5644] <... chdir resumed>) = 0 [pid 5643] <... setpgid resumed>) = 0 [pid 5642] <... symlink resumed>) = 0 [pid 5641] close(15 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] getdents64(3, [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5643] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5642] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5644] <... prctl resumed>) = 0 [pid 5643] <... symlink resumed>) = 0 [pid 5642] <... symlink resumed>) = 0 [pid 5641] close(16 [pid 5045] <... close resumed>) = 0 [pid 5042] close(3 [pid 5643] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5642] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./95" [pid 5644] setpgid(0, 0 [pid 5643] <... symlink resumed>) = 0 [pid 5642] <... symlink resumed>) = 0 [pid 5641] close(17 [pid 5045] <... rmdir resumed>) = 0 [pid 5042] <... close resumed>) = 0 [pid 5644] <... setpgid resumed>) = 0 [pid 5643] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./96", 0777 [pid 5042] rmdir("./89" [pid 5644] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5643] <... symlink resumed>) = 0 [pid 5642] <... openat resumed>) = 3 [pid 5641] close(18 [pid 5045] <... mkdir resumed>) = 0 [pid 5042] <... rmdir resumed>) = 0 [pid 5644] <... symlink resumed>) = 0 [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] write(3, "1000", 4 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5644] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5643] <... openat resumed>) = 3 [pid 5642] <... write resumed>) = 4 [pid 5641] close(19 [pid 5042] mkdir("./90", 0777 [pid 5644] <... symlink resumed>) = 0 [pid 5643] write(3, "1000", 4 [pid 5642] close(3 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... mkdir resumed>) = 0 [pid 5644] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5643] <... write resumed>) = 4 [pid 5642] <... close resumed>) = 0 [pid 5641] close(20 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5646 attached ./strace-static-x86_64: Process 5645 attached [pid 5644] <... symlink resumed>) = 0 [pid 5643] close(3 [pid 5642] read(200, [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] set_robust_list(0x555556f426e0, 24 [pid 5645] set_robust_list(0x555556f426e0, 24 [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5643] <... close resumed>) = 0 [pid 5642] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5641] close(21 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5645] <... set_robust_list resumed>) = 0 [pid 5644] <... openat resumed>) = 3 [pid 5643] read(200, [pid 5642] symlink("/dev/binderfs", "./binderfs" [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 98 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 92 [pid 5646] chdir("./90" [pid 5645] chdir("./96" [pid 5644] write(3, "1000", 4 [pid 5643] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5642] <... symlink resumed>) = 0 [pid 5641] close(22 [pid 5646] <... chdir resumed>) = 0 [pid 5645] <... chdir resumed>) = 0 [pid 5644] <... write resumed>) = 4 [pid 5643] symlink("/dev/binderfs", "./binderfs" [pid 5642] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5644] close(3 [pid 5643] <... symlink resumed>) = 0 [pid 5646] <... prctl resumed>) = 0 [pid 5645] <... prctl resumed>) = 0 [pid 5644] <... close resumed>) = 0 [pid 5643] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5642] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(23 [pid 5646] setpgid(0, 0 [pid 5645] setpgid(0, 0 [pid 5644] read(200, [pid 5643] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(3 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... setpgid resumed>) = 0 [pid 5645] <... setpgid resumed>) = 0 [pid 5644] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5643] close(3 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(24 [pid 5646] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5645] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5644] symlink("/dev/binderfs", "./binderfs" [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(4 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... symlink resumed>) = 0 [pid 5645] <... symlink resumed>) = 0 [pid 5644] <... symlink resumed>) = 0 [pid 5643] close(4 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(25 [pid 5646] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5645] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5644] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(5 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... symlink resumed>) = 0 [pid 5645] <... symlink resumed>) = 0 [pid 5644] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(5 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(26 [pid 5646] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5645] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5644] close(3 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(6 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... symlink resumed>) = 0 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] <... symlink resumed>) = 0 [pid 5644] close(4 [pid 5643] close(6 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(27 [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(7 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(5 [pid 5646] <... openat resumed>) = 3 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(6) = -1 EBADF (Bad file descriptor) [pid 5644] close(7) = -1 EBADF (Bad file descriptor) [pid 5645] <... openat resumed>) = 3 [pid 5644] close(8 [pid 5643] close(7 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(28 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] write(3, "1000", 4 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(8 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... write resumed>) = 4 [pid 5644] close(9 [pid 5643] close(8 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] close(29 [pid 5646] close(3 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... close resumed>) = 0 [pid 5644] close(10 [pid 5643] close(9 [pid 5642] close(9 [pid 5641] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5646] read(200, [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5646] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5644] close(11 [pid 5643] close(10 [pid 5642] close(10 [pid 5641] <... write resumed>) = 335 [pid 5646] symlink("/dev/binderfs", "./binderfs" [pid 5645] write(3, "1000", 4 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] exit_group(0 [pid 5646] <... symlink resumed>) = 0 [pid 5644] close(12 [pid 5643] close(11 [pid 5642] close(11 [pid 5641] <... exit_group resumed>) = ? [pid 5646] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5645] <... write resumed>) = 4 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(13) = -1 EBADF (Bad file descriptor) [pid 5644] close(14) = -1 EBADF (Bad file descriptor) [pid 5644] close(15) = -1 EBADF (Bad file descriptor) [pid 5646] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(3 [pid 5644] close(16 [pid 5643] close(12 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5641] +++ exited with 0 +++ [pid 5646] close(3 [pid 5645] <... close resumed>) = 0 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(12 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] read(200, [pid 5644] close(17 [pid 5643] close(13 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(4 [pid 5645] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(13 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] symlink("/dev/binderfs", "./binderfs" [pid 5644] close(18 [pid 5643] close(14 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(5 [pid 5645] <... symlink resumed>) = 0 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(14 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5644] close(19 [pid 5643] close(15 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(6 [pid 5645] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(15 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(3 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(16 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(7 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(20 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(16 [pid 5039] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(4 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(17 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(8 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(21 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(17 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(5 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(18 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(9 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(18 [pid 5039] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(6 [pid 5644] close(22 [pid 5643] close(19 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(10 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(19 [pid 5039] <... openat resumed>) = 3 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(7 [pid 5644] close(23 [pid 5643] close(20 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5646] close(11 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(20 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(8 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(21 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5646] close(12 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(21 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(9 [pid 5643] close(22 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(13 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(24 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(22 [pid 5039] getdents64(3, [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(10 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(23 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(14 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(25 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(23 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(11 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(24 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(15 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(26 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(24 [pid 5039] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(12 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(25 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(16 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(27 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(25 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(13 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(26 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(17 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(28 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(26 [pid 5039] lstat("./84/binderfs", [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(14 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(27 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(18 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] close(29 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(27write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(15 [pid 5644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] close(28 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(19 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(28 [pid 5039] unlink("./84/binderfs" [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(16 [pid 5644] <... write resumed>) = 335 [pid 5643] close(29 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(20 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] exit_group(0 [pid 5643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5642] close(29 [pid 5039] <... unlink resumed>) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(17 [pid 5644] <... exit_group resumed>) = ? write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5643] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] close(21 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5644] +++ exited with 0 +++ [pid 5643] <... write resumed>) = 335 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5642] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5039] umount2("./84/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(18 [pid 5643] exit_group(0 [pid 5642] <... write resumed>) = 335 [pid 5646] close(22 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] <... exit_group resumed>) = ? [pid 5642] exit_group(0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(19 [pid 5642] <... exit_group resumed>) = ? [pid 5040] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./84/cgroup.net", [pid 5646] close(23 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5643] +++ exited with 0 +++ [pid 5642] +++ exited with 0 +++ [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(20 [pid 5039] unlink("./84/cgroup.net" [pid 5646] close(24 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5040] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... unlink resumed>) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] close(21 [pid 5044] restart_syscall(<... resuming interrupted clone ...> [pid 5040] <... openat resumed>) = 3 [pid 5039] umount2("./84/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... restart_syscall resumed>) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./84/cgroup.cpu", [pid 5646] close(25 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5040] fstat(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./84/cgroup.cpu" [pid 5646] close(26 [pid 5645] close(22 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] restart_syscall(<... resuming interrupted clone ...> [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... restart_syscall resumed>) = 0 [pid 5039] umount2("./84/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] close(27 [pid 5645] close(23 [pid 5044] <... openat resumed>) = 3 [pid 5040] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] fstat(3, [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] lstat("./84/cgroup", [pid 5646] close(28 [pid 5645] close(24 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./84/cgroup" [pid 5646] close(29 [pid 5645] close(25 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] lstat("./88/binderfs", [pid 5039] <... unlink resumed>) = 0 [pid 5646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] getdents64(3, [pid 5645] close(26 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5043] <... openat resumed>) = 3 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5646] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] lstat("./94/binderfs", [pid 5039] close(3 [pid 5646] <... write resumed>) = 335 [pid 5645] close(27 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] fstat(3, [pid 5040] unlink("./88/binderfs" [pid 5039] <... close resumed>) = 0 [pid 5646] exit_group(0 [pid 5044] unlink("./94/binderfs" [pid 5039] rmdir("./84" [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5646] <... exit_group resumed>) = ? [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... rmdir resumed>) = 0 [pid 5645] close(28 [pid 5044] umount2("./94/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] mkdir("./85", 0777 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... mkdir resumed>) = 0 [pid 5044] lstat("./94/cgroup.net", [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5647 attached [pid 5646] +++ exited with 0 +++ [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] getdents64(3, [pid 5040] umount2("./88/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5647] set_robust_list(0x555556f426e0, 24 [pid 5645] close(29 [pid 5044] unlink("./94/cgroup.net" [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5647] <... set_robust_list resumed>) = 0 [pid 5645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5043] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 87 [pid 5647] chdir("./85" [pid 5645] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5044] umount2("./94/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5647] <... chdir resumed>) = 0 [pid 5645] <... write resumed>) = 335 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./88/cgroup.net", [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5645] exit_group(0 [pid 5044] lstat("./94/cgroup.cpu", [pid 5043] lstat("./91/binderfs", [pid 5042] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5647] <... prctl resumed>) = 0 [pid 5645] <... exit_group resumed>) = ? [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5647] setpgid(0, 0 [pid 5044] unlink("./94/cgroup.cpu" [pid 5042] fstat(3, [pid 5647] <... setpgid resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5647] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5645] +++ exited with 0 +++ [pid 5044] umount2("./94/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./91/binderfs" [pid 5042] getdents64(3, [pid 5647] <... symlink resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5647] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5044] lstat("./94/cgroup", [pid 5042] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5647] <... symlink resumed>) = 0 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] unlink("./88/cgroup.net" [pid 5647] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5044] unlink("./94/cgroup" [pid 5043] umount2("./91/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] lstat("./90/binderfs", [pid 5647] <... symlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5045] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] getdents64(3, [pid 5043] lstat("./91/cgroup.net", [pid 5042] unlink("./90/binderfs" [pid 5040] umount2("./88/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5647] <... openat resumed>) = 3 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5647] write(3, "1000", 4 [pid 5045] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] close(3 [pid 5043] unlink("./91/cgroup.net" [pid 5042] <... unlink resumed>) = 0 [pid 5040] lstat("./88/cgroup.cpu", [pid 5647] <... write resumed>) = 4 [pid 5045] <... openat resumed>) = 3 [pid 5044] <... close resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5647] close(3 [pid 5045] fstat(3, [pid 5044] rmdir("./94" [pid 5043] umount2("./91/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] umount2("./90/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] unlink("./88/cgroup.cpu" [pid 5647] <... close resumed>) = 0 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5647] read(200, [pid 5045] getdents64(3, [pid 5044] mkdir("./95", 0777 [pid 5043] lstat("./91/cgroup.cpu", [pid 5042] lstat("./90/cgroup.net", [pid 5040] umount2("./88/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5647] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5647] symlink("/dev/binderfs", "./binderfs" [pid 5045] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... mkdir resumed>) = 0 [pid 5043] unlink("./91/cgroup.cpu" [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./88/cgroup", [pid 5647] <... symlink resumed>) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] <... unlink resumed>) = 0 [pid 5042] unlink("./90/cgroup.net" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5647] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5045] lstat("./96/binderfs", [pid 5043] umount2("./91/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] unlink("./88/cgroup" [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5045] unlink("./96/binderfs" [pid 5043] lstat("./91/cgroup", [pid 5040] getdents64(3, [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5648 attached [pid 5647] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./96/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./91/cgroup" [pid 5042] <... unlink resumed>) = 0 [pid 5040] close(3 [pid 5648] set_robust_list(0x555556f426e0, 24 [pid 5647] close(3 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 97 [pid 5043] <... unlink resumed>) = 0 [pid 5042] umount2("./90/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... close resumed>) = 0 [pid 5648] <... set_robust_list resumed>) = 0 [pid 5045] lstat("./96/cgroup.net", [pid 5043] getdents64(3, [pid 5040] rmdir("./88" [pid 5648] chdir("./95" [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... rmdir resumed>) = 0 [pid 5648] <... chdir resumed>) = 0 [pid 5647] close(4 [pid 5045] unlink("./96/cgroup.net" [pid 5043] close(3 [pid 5042] lstat("./90/cgroup.cpu", [pid 5040] mkdir("./89", 0777 [pid 5648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... mkdir resumed>) = 0 [pid 5648] <... prctl resumed>) = 0 [pid 5045] umount2("./96/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] rmdir("./91" [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5649 attached [pid 5648] setpgid(0, 0 [pid 5647] close(5 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... rmdir resumed>) = 0 [pid 5042] unlink("./90/cgroup.cpu" [pid 5649] set_robust_list(0x555556f426e0, 24 [pid 5648] <... setpgid resumed>) = 0 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./96/cgroup.cpu", [pid 5043] mkdir("./92", 0777 [pid 5649] <... set_robust_list resumed>) = 0 [pid 5648] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5647] close(6 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 91 [pid 5649] chdir("./89" [pid 5648] <... symlink resumed>) = 0 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./96/cgroup.cpu" [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5650 attached [pid 5649] <... chdir resumed>) = 0 [pid 5648] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5647] close(7 [pid 5045] <... unlink resumed>) = 0 [pid 5042] umount2("./90/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5650] set_robust_list(0x555556f426e0, 24 [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5648] <... symlink resumed>) = 0 [pid 5045] umount2("./96/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 94 [pid 5650] <... set_robust_list resumed>) = 0 [pid 5649] <... prctl resumed>) = 0 [pid 5648] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5650] chdir("./92" [pid 5649] setpgid(0, 0 [pid 5648] <... symlink resumed>) = 0 [pid 5045] lstat("./96/cgroup", [pid 5650] <... chdir resumed>) = 0 [pid 5649] <... setpgid resumed>) = 0 [pid 5648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5647] close(8 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] lstat("./90/cgroup", [pid 5650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5649] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5648] <... openat resumed>) = 3 [pid 5045] unlink("./96/cgroup" [pid 5650] <... prctl resumed>) = 0 [pid 5649] <... symlink resumed>) = 0 [pid 5648] write(3, "1000", 4 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5650] setpgid(0, 0 [pid 5649] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5648] <... write resumed>) = 4 [pid 5647] close(9 [pid 5045] getdents64(3, [pid 5042] unlink("./90/cgroup" [pid 5650] <... setpgid resumed>) = 0 [pid 5649] <... symlink resumed>) = 0 [pid 5648] close(3 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5650] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5649] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5648] <... close resumed>) = 0 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5042] <... unlink resumed>) = 0 [pid 5650] <... symlink resumed>) = 0 [pid 5649] <... symlink resumed>) = 0 [pid 5648] read(200, [pid 5647] close(10 [pid 5045] <... close resumed>) = 0 [pid 5042] getdents64(3, [pid 5650] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5648] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5045] rmdir("./96" [pid 5650] <... symlink resumed>) = 0 [pid 5649] <... openat resumed>) = 3 [pid 5648] symlink("/dev/binderfs", "./binderfs" [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5650] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5649] write(3, "1000", 4 [pid 5648] <... symlink resumed>) = 0 [pid 5045] mkdir("./97", 0777 [pid 5650] <... symlink resumed>) = 0 [pid 5649] <... write resumed>) = 4 [pid 5648] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5647] close(11 [pid 5045] <... mkdir resumed>) = 0 [pid 5042] close(3 [pid 5650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5649] close(3 [pid 5648] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5650] <... openat resumed>) = 3 [pid 5649] <... close resumed>) = 0 [pid 5648] close(3 [pid 5647] close(12 [pid 5042] <... close resumed>) = 0 ./strace-static-x86_64: Process 5651 attached [pid 5649] read(200, [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 99 [pid 5650] write(3, "1000", 4 [pid 5649] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5648] close(4 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./90" [pid 5651] set_robust_list(0x555556f426e0, 24 [pid 5650] <... write resumed>) = 4 [pid 5649] symlink("/dev/binderfs", "./binderfs" [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(13 [pid 5042] <... rmdir resumed>) = 0 [pid 5651] <... set_robust_list resumed>) = 0 [pid 5650] close(3 [pid 5649] <... symlink resumed>) = 0 [pid 5648] close(5 [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./91", 0777 [pid 5651] chdir("./97" [pid 5650] <... close resumed>) = 0 [pid 5649] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] close(14 [pid 5042] <... mkdir resumed>) = 0 [pid 5651] <... chdir resumed>) = 0 [pid 5650] read(200, [pid 5649] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(6 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5652 attached [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5650] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5649] close(3 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] set_robust_list(0x555556f426e0, 24 [pid 5651] <... prctl resumed>) = 0 [pid 5652] <... set_robust_list resumed>) = 0 [pid 5651] setpgid(0, 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 93 [pid 5652] chdir("./91" [pid 5651] <... setpgid resumed>) = 0 [pid 5650] symlink("/dev/binderfs", "./binderfs" [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(7 [pid 5647] close(15 [pid 5652] <... chdir resumed>) = 0 [pid 5651] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] <... symlink resumed>) = 0 [pid 5650] <... symlink resumed>) = 0 [pid 5649] close(4 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... prctl resumed>) = 0 [pid 5651] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5650] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] setpgid(0, 0 [pid 5651] <... symlink resumed>) = 0 [pid 5650] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(5 [pid 5648] close(8 [pid 5647] close(16 [pid 5652] <... setpgid resumed>) = 0 [pid 5651] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5650] close(3 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5651] <... symlink resumed>) = 0 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(6 [pid 5648] close(9 [pid 5647] close(17 [pid 5652] <... symlink resumed>) = 0 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5650] close(4 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5651] <... openat resumed>) = 3 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(7 [pid 5648] close(10 [pid 5647] close(18 [pid 5652] <... symlink resumed>) = 0 [pid 5651] write(3, "1000", 4 [pid 5650] close(5 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5651] <... write resumed>) = 4 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(8 [pid 5648] close(11 [pid 5647] close(19 [pid 5650] close(6 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... symlink resumed>) = 0 [pid 5651] close(3 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(9 [pid 5648] close(12 [pid 5647] close(20 [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5651] <... close resumed>) = 0 [pid 5650] close(7 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... openat resumed>) = 3 [pid 5651] read(200, [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(10 [pid 5648] close(13 [pid 5647] close(21 [pid 5650] close(8 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(11 [pid 5648] close(14 [pid 5647] close(22 [pid 5652] write(3, "1000", 4 [pid 5651] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5650] close(9 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... write resumed>) = 4 [pid 5651] symlink("/dev/binderfs", "./binderfs" [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(12 [pid 5648] close(15 [pid 5647] close(23 [pid 5652] close(3 [pid 5651] <... symlink resumed>) = 0 [pid 5650] close(10 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = 0 [pid 5651] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(13 [pid 5648] close(16 [pid 5647] close(24 [pid 5652] read(200, [pid 5651] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(11 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5651] close(3 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(14 [pid 5648] close(17 [pid 5647] close(25 [pid 5652] symlink("/dev/binderfs", "./binderfs" [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(12 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(4 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(15 [pid 5648] close(18 [pid 5647] close(26 [pid 5652] <... symlink resumed>) = 0 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(13 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5651] close(5 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(16 [pid 5648] close(19 [pid 5647] close(27 [pid 5652] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(14 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(3 [pid 5651] close(6 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(17 [pid 5648] close(20 [pid 5647] close(28 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(15 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(4 [pid 5651] close(7 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(18 [pid 5648] close(21 [pid 5647] close(29 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(16 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5652] close(5 [pid 5651] close(8 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(19 [pid 5648] close(22 [pid 5647] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(17 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... write resumed>) = 335 [pid 5652] close(6 [pid 5651] close(9 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(20 [pid 5648] close(23 [pid 5647] exit_group(0 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(18 [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] <... exit_group resumed>) = ? [pid 5652] close(7 [pid 5651] close(10 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] close(21 [pid 5648] close(24 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(19 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(8 [pid 5651] close(11 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(25 [pid 5652] close(9 [pid 5651] close(12 [pid 5650] close(20 [pid 5649] close(22 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5647] +++ exited with 0 +++ [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(26 [pid 5651] close(13 [pid 5650] close(21 [pid 5649] close(23 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(10 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(27 [pid 5039] restart_syscall(<... resuming interrupted clone ...> [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(14 [pid 5650] close(22 [pid 5649] close(24 [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] close(11 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] close(28 [pid 5039] <... restart_syscall resumed>) = 0 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(15 [pid 5650] close(23 [pid 5649] close(25 [pid 5652] close(12 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(16 [pid 5650] close(24 [pid 5649] close(26 [pid 5648] close(29 [pid 5652] close(13 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(17 [pid 5650] close(25 [pid 5649] close(27 [pid 5648] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5652] close(14 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... write resumed>) = 335 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(18 [pid 5650] close(26 [pid 5649] close(28 [pid 5648] exit_group(0 [pid 5652] close(15 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5648] <... exit_group resumed>) = ? [pid 5039] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(19 [pid 5650] close(27 [pid 5649] close(29 [pid 5039] <... openat resumed>) = 3 [pid 5652] close(16 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(20 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5652] close(17 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] close(28 [pid 5649] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5648] +++ exited with 0 +++ [pid 5039] getdents64(3, [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(21 [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... write resumed>) = 335 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5652] close(18 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(22 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5652] close(19 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] lstat("./85/binderfs", [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(23 [pid 5650] close(29 [pid 5649] exit_group(0 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5652] close(20 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5649] <... exit_group resumed>) = ? [pid 5044] restart_syscall(<... resuming interrupted clone ...>write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(24 [pid 5650] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5649] +++ exited with 0 +++ [pid 5044] <... restart_syscall resumed>) = 0 [pid 5039] unlink("./85/binderfs" [pid 5652] close(21 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... write resumed>) = 335 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5651] close(25 [pid 5650] exit_group(0 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... unlink resumed>) = 0 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5650] <... exit_group resumed>) = ? [pid 5044] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5652] close(22 [pid 5651] close(26 [pid 5650] +++ exited with 0 +++ [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./85/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5652] close(23 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... openat resumed>) = 3 [pid 5040] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(27 [pid 5044] fstat(3, [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5040] <... openat resumed>) = 3 [pid 5652] close(24 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] fstat(3, [pid 5039] lstat("./85/cgroup.net", [pid 5044] getdents64(3, [pid 5043] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(28 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] getdents64(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5652] close(25 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] unlink("./85/cgroup.net"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] close(29 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... openat resumed>) = 3 [pid 5040] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5652] close(26 [pid 5651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] fstat(3, [pid 5039] umount2("./85/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5652] close(27 [pid 5651] <... write resumed>) = 335 [pid 5043] getdents64(3, [pid 5039] lstat("./85/cgroup.cpu", [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] exit_group(0 [pid 5044] lstat("./95/binderfs", [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5652] close(28 [pid 5651] <... exit_group resumed>) = ? [pid 5043] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./85/cgroup.cpu" [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5651] +++ exited with 0 +++ [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./89/binderfs", [pid 5039] <... unlink resumed>) = 0 [pid 5652] close(29 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5044] unlink("./95/binderfs" [pid 5043] lstat("./92/binderfs", [pid 5039] umount2("./85/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5652] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] umount2("./95/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./92/binderfs" [pid 5039] lstat("./85/cgroup", [pid 5652] <... write resumed>) = 335 [pid 5045] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5040] unlink("./89/binderfs" [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5652] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./95/cgroup.net", [pid 5043] umount2("./92/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./85/cgroup" [pid 5652] <... exit_group resumed>) = ? [pid 5045] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5652] +++ exited with 0 +++ [pid 5045] <... openat resumed>) = 3 [pid 5044] unlink("./95/cgroup.net" [pid 5043] lstat("./92/cgroup.net", [pid 5040] umount2("./89/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] getdents64(3, [pid 5045] fstat(3, [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] umount2("./95/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] unlink("./92/cgroup.net" [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] close(3 [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... unlink resumed>) = 0 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5039] <... close resumed>) = 0 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] umount2("./92/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... restart_syscall resumed>) = 0 [pid 5039] rmdir("./85" [pid 5045] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] lstat("./95/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./89/cgroup.net", [pid 5039] <... rmdir resumed>) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] lstat("./92/cgroup.cpu", [pid 5039] mkdir("./86", 0777 [pid 5045] lstat("./97/binderfs", [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] unlink("./92/cgroup.cpu" [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5653 attached [pid 5045] unlink("./97/binderfs" [pid 5044] unlink("./95/cgroup.cpu" [pid 5043] <... unlink resumed>) = 0 [pid 5042] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] unlink("./89/cgroup.net" [pid 5653] set_robust_list(0x555556f426e0, 24 [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] umount2("./92/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... openat resumed>) = 3 [pid 5040] <... unlink resumed>) = 0 [pid 5653] <... set_robust_list resumed>) = 0 [pid 5044] umount2("./95/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./89/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5653] chdir("./86" [pid 5045] umount2("./97/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] fstat(3, [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 88 [pid 5653] <... chdir resumed>) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./95/cgroup", [pid 5043] lstat("./92/cgroup", [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] lstat("./89/cgroup.cpu", [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5653] <... prctl resumed>) = 0 [pid 5045] lstat("./97/cgroup.net", [pid 5044] unlink("./95/cgroup" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] getdents64(3, [pid 5040] unlink("./89/cgroup.cpu" [pid 5653] setpgid(0, 0 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./92/cgroup" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] <... unlink resumed>) = 0 [pid 5653] <... setpgid resumed>) = 0 [pid 5045] unlink("./97/cgroup.net" [pid 5044] getdents64(3, [pid 5040] umount2("./89/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5653] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5653] <... symlink resumed>) = 0 [pid 5044] close(3 [pid 5040] lstat("./89/cgroup", [pid 5653] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5043] getdents64(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5653] <... symlink resumed>) = 0 [pid 5044] rmdir("./95" [pid 5040] unlink("./89/cgroup" [pid 5045] umount2("./97/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5042] lstat("./91/binderfs", [pid 5653] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5044] <... rmdir resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5653] <... symlink resumed>) = 0 [pid 5044] mkdir("./96", 0777 [pid 5043] close(3 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] getdents64(3, [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5045] lstat("./97/cgroup.cpu", [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5653] <... openat resumed>) = 3 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] unlink("./91/binderfs" [pid 5040] close(3./strace-static-x86_64: Process 5654 attached [pid 5653] write(3, "1000", 4 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] rmdir("./92" [pid 5040] <... close resumed>) = 0 [pid 5654] set_robust_list(0x555556f426e0, 24 [pid 5653] <... write resumed>) = 4 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 98 [pid 5042] <... unlink resumed>) = 0 [pid 5040] rmdir("./89" [pid 5654] <... set_robust_list resumed>) = 0 [pid 5653] close(3 [pid 5045] unlink("./97/cgroup.cpu" [pid 5043] <... rmdir resumed>) = 0 [pid 5040] <... rmdir resumed>) = 0 [pid 5654] chdir("./96" [pid 5653] <... close resumed>) = 0 [pid 5042] umount2("./91/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] mkdir("./90", 0777 [pid 5654] <... chdir resumed>) = 0 [pid 5653] read(200, [pid 5045] <... unlink resumed>) = 0 [pid 5043] mkdir("./93", 0777 [pid 5040] <... mkdir resumed>) = 0 [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5653] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5655 attached [pid 5654] <... prctl resumed>) = 0 [pid 5653] symlink("/dev/binderfs", "./binderfs" [pid 5045] umount2("./97/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... mkdir resumed>) = 0 [pid 5042] lstat("./91/cgroup.net", [pid 5655] set_robust_list(0x555556f426e0, 24 [pid 5654] setpgid(0, 0 [pid 5653] <... symlink resumed>) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5655] <... set_robust_list resumed>) = 0 [pid 5654] <... setpgid resumed>) = 0 [pid 5653] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 92 [pid 5655] chdir("./90" [pid 5654] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5653] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./97/cgroup", [pid 5042] unlink("./91/cgroup.net"./strace-static-x86_64: Process 5656 attached [pid 5655] <... chdir resumed>) = 0 [pid 5654] <... symlink resumed>) = 0 [pid 5653] close(3 [pid 5656] set_robust_list(0x555556f426e0, 24 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5654] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5656] <... set_robust_list resumed>) = 0 [pid 5655] <... prctl resumed>) = 0 [pid 5654] <... symlink resumed>) = 0 [pid 5653] close(4 [pid 5045] unlink("./97/cgroup" [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 95 [pid 5042] umount2("./91/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5656] chdir("./93" [pid 5655] setpgid(0, 0 [pid 5654] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... chdir resumed>) = 0 [pid 5655] <... setpgid resumed>) = 0 [pid 5654] <... symlink resumed>) = 0 [pid 5653] close(5 [pid 5045] <... unlink resumed>) = 0 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5656] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5655] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5656] <... prctl resumed>) = 0 [pid 5655] <... symlink resumed>) = 0 [pid 5654] <... openat resumed>) = 3 [pid 5653] close(6 [pid 5042] lstat("./91/cgroup.cpu", [pid 5656] setpgid(0, 0 [pid 5655] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5654] write(3, "1000", 4 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5656] <... setpgid resumed>) = 0 [pid 5655] <... symlink resumed>) = 0 [pid 5654] <... write resumed>) = 4 [pid 5653] close(7 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5656] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5655] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5654] close(3 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5656] <... symlink resumed>) = 0 [pid 5655] <... symlink resumed>) = 0 [pid 5654] <... close resumed>) = 0 [pid 5653] close(8 [pid 5042] unlink("./91/cgroup.cpu" [pid 5656] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5654] read(200, [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5656] <... symlink resumed>) = 0 [pid 5655] <... openat resumed>) = 3 [pid 5654] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5653] close(9 [pid 5045] rmdir("./97" [pid 5042] <... unlink resumed>) = 0 [pid 5656] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5655] write(3, "1000", 4 [pid 5654] symlink("/dev/binderfs", "./binderfs" [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... symlink resumed>) = 0 [pid 5655] <... write resumed>) = 4 [pid 5654] <... symlink resumed>) = 0 [pid 5653] close(10 [pid 5045] <... rmdir resumed>) = 0 [pid 5042] umount2("./91/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5655] close(3 [pid 5654] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... openat resumed>) = 3 [pid 5655] <... close resumed>) = 0 [pid 5654] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(11 [pid 5045] mkdir("./98", 0777 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5656] write(3, "1000", 4 [pid 5655] read(200, [pid 5654] close(3 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 [pid 5042] lstat("./91/cgroup", [pid 5656] <... write resumed>) = 4 [pid 5655] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(12 [pid 5656] close(3 [pid 5655] symlink("/dev/binderfs", "./binderfs" [pid 5654] close(4 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5656] <... close resumed>) = 0 [pid 5655] <... symlink resumed>) = 0 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(13 [pid 5656] read(200, [pid 5655] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5654] close(5 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./91/cgroup" [pid 5656] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5655] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(14 [pid 5042] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5657 attached [pid 5656] symlink("/dev/binderfs", "./binderfs" [pid 5655] close(3 [pid 5654] close(6 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5657] set_robust_list(0x555556f426e0, 24 [pid 5656] <... symlink resumed>) = 0 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(15 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 100 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5656] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5655] close(4 [pid 5654] close(7 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3 [pid 5657] <... set_robust_list resumed>) = 0 [pid 5656] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(16 [pid 5042] <... close resumed>) = 0 [pid 5657] chdir("./98" [pid 5656] close(3 [pid 5655] close(5 [pid 5654] close(8 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./91" [pid 5657] <... chdir resumed>) = 0 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(17 [pid 5042] <... rmdir resumed>) = 0 [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5656] close(4 [pid 5655] close(6 [pid 5654] close(9 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./92", 0777 [pid 5657] <... prctl resumed>) = 0 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(18 [pid 5042] <... mkdir resumed>) = 0 [pid 5657] setpgid(0, 0 [pid 5656] close(5 [pid 5655] close(7 [pid 5654] close(10 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5657] <... setpgid resumed>) = 0 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(19./strace-static-x86_64: Process 5658 attached [pid 5657] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5656] close(6 [pid 5655] close(8 [pid 5654] close(11 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 94 [pid 5658] set_robust_list(0x555556f426e0, 24 [pid 5657] <... symlink resumed>) = 0 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(20 [pid 5658] <... set_robust_list resumed>) = 0 [pid 5657] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5656] close(7 [pid 5655] close(9 [pid 5654] close(12 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(21 [pid 5658] chdir("./92" [pid 5657] <... symlink resumed>) = 0 [pid 5656] close(8 [pid 5655] close(10 [pid 5654] close(13 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... chdir resumed>) = 0 [pid 5657] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(22 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5656] close(9 [pid 5655] close(11 [pid 5654] close(14 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... prctl resumed>) = 0 [pid 5657] <... symlink resumed>) = 0 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(23 [pid 5658] setpgid(0, 0 [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5656] close(10 [pid 5655] close(12 [pid 5654] close(15 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... setpgid resumed>) = 0 [pid 5657] <... openat resumed>) = 3 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(24 [pid 5658] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5657] write(3, "1000", 4 [pid 5656] close(11 [pid 5655] close(13 [pid 5654] close(16 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... symlink resumed>) = 0 [pid 5657] <... write resumed>) = 4 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5657] close(3 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(25 [pid 5658] <... symlink resumed>) = 0 [pid 5657] <... close resumed>) = 0 [pid 5656] close(12 [pid 5655] close(14 [pid 5654] close(17 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5657] read(200, [pid 5658] <... symlink resumed>) = 0 [pid 5657] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(26 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5657] symlink("/dev/binderfs", "./binderfs" [pid 5656] close(13 [pid 5655] close(15 [pid 5658] <... openat resumed>) = 3 [pid 5657] <... symlink resumed>) = 0 [pid 5654] close(18 [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] write(3, "1000", 4 [pid 5657] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5658] <... write resumed>) = 4 [pid 5657] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(27 [pid 5658] close(3 [pid 5657] close(3 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = 0 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] close(14 [pid 5655] close(16 [pid 5654] close(19 [pid 5653] close(28 [pid 5658] read(200, [pid 5657] close(4 [pid 5658] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] symlink("/dev/binderfs", "./binderfs" [pid 5657] close(5 [pid 5658] <... symlink resumed>) = 0 [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5657] close(6 [pid 5656] close(15 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(17 [pid 5654] close(20 [pid 5658] close(3 [pid 5657] close(7 [pid 5656] close(16 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] close(29 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(18 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(4 [pid 5657] close(8 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(21 [pid 5656] close(17 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5658] close(5 [pid 5657] close(9 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(19 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... write resumed>) = 335 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] close(18 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(22 [pid 5653] exit_group(0 [pid 5658] close(6 [pid 5657] close(10 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(20 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5653] <... exit_group resumed>) = ? [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(7 [pid 5657] close(11 [pid 5656] close(19 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(23 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(8 [pid 5657] close(12 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(9 [pid 5657] close(13 [pid 5655] close(21 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(10 [pid 5657] close(14 [pid 5656] close(20 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(24 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(22 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(11 [pid 5657] close(15 [pid 5653] +++ exited with 0 +++ [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] close(21 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(25 [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5658] close(12 [pid 5657] close(16 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] close(23 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(13 [pid 5657] close(17 [pid 5656] close(22 [pid 5654] close(26 [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(14 [pid 5657] close(18 [pid 5656] close(23 [pid 5655] close(24 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(27 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5656] close(24 [pid 5655] close(25 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] close(19 [pid 5039] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5658] close(15 [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(28 [pid 5039] <... openat resumed>) = 3 [pid 5656] close(25 [pid 5655] close(26 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] fstat(3, [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] close(29 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5658] close(16 [pid 5657] close(20 [pid 5656] close(26 [pid 5655] close(27 [pid 5654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5654] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5039] getdents64(3, [pid 5658] close(17 [pid 5657] close(21 [pid 5656] close(27 [pid 5655] close(28 [pid 5654] <... write resumed>) = 335 [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] exit_group(0 [pid 5039] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5658] close(18 [pid 5657] close(22 [pid 5656] close(28 [pid 5655] close(29 [pid 5654] <... exit_group resumed>) = ? [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5654] +++ exited with 0 +++ [pid 5039] lstat("./86/binderfs", [pid 5658] close(19 [pid 5657] close(23 [pid 5656] close(29 [pid 5655] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5655] <... write resumed>) = 335 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5039] unlink("./86/binderfs" [pid 5658] close(20 [pid 5657] close(24 [pid 5656] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5655] exit_group(0 [pid 5044] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5656] <... write resumed>) = 335 [pid 5655] <... exit_group resumed>) = ? [pid 5658] close(21 [pid 5657] close(25 [pid 5656] exit_group(0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./86/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(22 [pid 5657] close(26 [pid 5656] <... exit_group resumed>) = ? [pid 5044] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(23 [pid 5657] close(27 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5658] close(24 [pid 5657] close(28 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... openat resumed>) = 3 [pid 5039] lstat("./86/cgroup.net", [pid 5658] close(25 [pid 5657] close(29 [pid 5656] +++ exited with 0 +++ [pid 5655] +++ exited with 0 +++ [pid 5044] fstat(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5039] unlink("./86/cgroup.net" [pid 5658] close(26 [pid 5044] getdents64(3, [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5039] <... unlink resumed>) = 0 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5657] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5043] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOWwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] umount2("./86/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5658] close(27 [pid 5044] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5657] <... write resumed>) = 335 [pid 5040] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5657] exit_group(0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./86/cgroup.cpu", [pid 5658] close(28 [pid 5657] <... exit_group resumed>) = ? [pid 5044] lstat("./96/binderfs", [pid 5043] <... openat resumed>) = 3 [pid 5040] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] fstat(3, [pid 5040] <... openat resumed>) = 3 [pid 5039] unlink("./86/cgroup.cpu" [pid 5658] close(29 [pid 5657] +++ exited with 0 +++ [pid 5044] unlink("./96/binderfs" [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] fstat(3, [pid 5039] <... unlink resumed>) = 0 [pid 5658] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5043] getdents64(3, [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] umount2("./86/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5658] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5044] umount2("./96/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5658] <... write resumed>) = 335 [pid 5045] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] lstat("./86/cgroup", [pid 5658] exit_group(0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./96/cgroup.net", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5658] <... exit_group resumed>) = ? [pid 5045] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./93/binderfs", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./86/cgroup" [pid 5044] unlink("./96/cgroup.net" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] lstat("./90/binderfs", [pid 5039] <... unlink resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./93/binderfs" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] getdents64(3, [pid 5044] umount2("./96/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5040] unlink("./90/binderfs" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./93/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] close(3 [pid 5044] lstat("./96/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./90/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... close resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] lstat("./93/cgroup.net", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] rmdir("./86" [pid 5044] unlink("./96/cgroup.cpu" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./90/cgroup.net", [pid 5039] <... rmdir resumed>) = 0 [pid 5658] +++ exited with 0 +++ [pid 5045] <... openat resumed>) = 3 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./93/cgroup.net" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] mkdir("./87", 0777 [pid 5045] fstat(3, [pid 5044] umount2("./96/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5040] unlink("./90/cgroup.net" [pid 5039] <... mkdir resumed>) = 0 [pid 5045] getdents64(3, [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5045] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./93/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] lstat("./96/cgroup", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5045] lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] lstat("./93/cgroup.cpu", [pid 5040] umount2("./90/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] unlink("./98/binderfs") = 0 [pid 5045] umount2("./98/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./96/cgroup" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] lstat("./98/cgroup.net", [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./93/cgroup.cpu" [pid 5040] lstat("./90/cgroup.cpu", [pid 5045] unlink("./98/cgroup.net") = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5045] umount2("./98/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./93/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... openat resumed>) = 3 [pid 5045] lstat("./98/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] getdents64(3, [pid 5042] fstat(3, [pid 5040] unlink("./90/cgroup.cpu" [pid 5045] unlink("./98/cgroup.cpu" [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] lstat("./93/cgroup", [pid 5045] <... unlink resumed>) = 0 [pid 5044] close(3 [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5045] umount2("./98/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5042] getdents64(3, [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... close resumed>) = 0 [pid 5040] umount2("./90/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] lstat("./98/cgroup", [pid 5044] rmdir("./96" [pid 5043] unlink("./93/cgroup" [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] unlink("./98/cgroup" [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5042] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] <... unlink resumed>) = 0 [pid 5044] mkdir("./97", 0777 [pid 5040] lstat("./90/cgroup", [pid 5045] getdents64(3, [pid 5043] getdents64(3, [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5045] close(3) = 0 [pid 5045] rmdir("./98" [pid 5044] <... mkdir resumed>) = 0 [pid 5045] <... rmdir resumed>) = 0 [pid 5042] lstat("./92/binderfs", [pid 5045] mkdir("./99", 0777 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5045] <... mkdir resumed>) = 0 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5660 attached ./strace-static-x86_64: Process 5659 attached [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] close(3 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] unlink("./90/cgroup" [pid 5660] set_robust_list(0x555556f426e0, 24 [pid 5659] set_robust_list(0x555556f426e0, 24 [pid 5660] <... set_robust_list resumed>) = 0 [pid 5659] <... set_robust_list resumed>) = 0 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 101 [pid 5660] chdir("./99" [pid 5659] chdir("./87" [pid 5660] <... chdir resumed>) = 0 [pid 5659] <... chdir resumed>) = 0 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5660] <... prctl resumed>) = 0 [pid 5659] <... prctl resumed>) = 0 [pid 5660] setpgid(0, 0 [pid 5659] setpgid(0, 0 [pid 5660] <... setpgid resumed>) = 0 [pid 5659] <... setpgid resumed>) = 0 [pid 5660] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5659] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5043] <... close resumed>) = 0 [pid 5042] unlink("./92/binderfs" [pid 5040] <... unlink resumed>) = 0 [pid 5660] <... symlink resumed>) = 0 [pid 5659] <... symlink resumed>) = 0 [pid 5660] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5659] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5043] rmdir("./93" [pid 5660] <... symlink resumed>) = 0 [pid 5659] <... symlink resumed>) = 0 [pid 5042] <... unlink resumed>) = 0 [pid 5040] getdents64(3, [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 89 [pid 5660] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5659] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5043] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5661 attached [pid 5660] <... symlink resumed>) = 0 [pid 5659] <... symlink resumed>) = 0 [pid 5042] umount2("./92/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5661] set_robust_list(0x555556f426e0, 24 [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5043] mkdir("./94", 0777 [pid 5661] <... set_robust_list resumed>) = 0 [pid 5660] <... openat resumed>) = 3 [pid 5659] <... openat resumed>) = 3 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 99 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] close(3 [pid 5661] chdir("./97" [pid 5660] write(3, "1000", 4 [pid 5659] write(3, "1000", 4 [pid 5043] <... mkdir resumed>) = 0 [pid 5661] <... chdir resumed>) = 0 [pid 5660] <... write resumed>) = 4 [pid 5659] <... write resumed>) = 4 [pid 5042] lstat("./92/cgroup.net", [pid 5040] <... close resumed>) = 0 [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5660] close(3 [pid 5659] close(3 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] rmdir("./90" [pid 5661] <... prctl resumed>) = 0 [pid 5660] <... close resumed>) = 0 [pid 5659] <... close resumed>) = 0 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5661] setpgid(0, 0 [pid 5660] read(200, [pid 5659] read(200, [pid 5661] <... setpgid resumed>) = 0 [pid 5660] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5659] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5661] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5660] symlink("/dev/binderfs", "./binderfs" [pid 5659] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5662 attached [pid 5661] <... symlink resumed>) = 0 [pid 5660] <... symlink resumed>) = 0 [pid 5659] <... symlink resumed>) = 0 [pid 5042] unlink("./92/cgroup.net" [pid 5040] <... rmdir resumed>) = 0 [pid 5662] set_robust_list(0x555556f426e0, 24 [pid 5661] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5660] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5659] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5661] <... symlink resumed>) = 0 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 96 [pid 5042] <... unlink resumed>) = 0 [pid 5040] mkdir("./91", 0777 [pid 5660] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./92/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... mkdir resumed>) = 0 [pid 5662] chdir("./94" [pid 5661] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5660] close(3 [pid 5659] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5663 attached [pid 5662] <... chdir resumed>) = 0 [pid 5661] <... symlink resumed>) = 0 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(3 [pid 5042] lstat("./92/cgroup.cpu", [pid 5662] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5663] set_robust_list(0x555556f426e0, 24 [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5660] close(4 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 93 [pid 5663] <... set_robust_list resumed>) = 0 [pid 5662] <... prctl resumed>) = 0 [pid 5661] <... openat resumed>) = 3 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(4 [pid 5042] unlink("./92/cgroup.cpu" [pid 5663] chdir("./91" [pid 5662] setpgid(0, 0 [pid 5661] write(3, "1000", 4 [pid 5660] close(5 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... chdir resumed>) = 0 [pid 5662] <... setpgid resumed>) = 0 [pid 5661] <... write resumed>) = 4 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(5 [pid 5042] <... unlink resumed>) = 0 [pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5662] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5661] close(3 [pid 5660] close(6 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... prctl resumed>) = 0 [pid 5662] <... symlink resumed>) = 0 [pid 5661] <... close resumed>) = 0 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(6 [pid 5042] umount2("./92/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5663] setpgid(0, 0 [pid 5662] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5661] read(200, [pid 5660] close(7 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5663] <... setpgid resumed>) = 0 [pid 5662] <... symlink resumed>) = 0 [pid 5661] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(7 [pid 5663] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5662] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5661] symlink("/dev/binderfs", "./binderfs" [pid 5660] close(8 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./92/cgroup", [pid 5663] <... symlink resumed>) = 0 [pid 5662] <... symlink resumed>) = 0 [pid 5661] <... symlink resumed>) = 0 [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(8 [pid 5663] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5661] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5660] close(9 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5663] <... symlink resumed>) = 0 [pid 5662] <... openat resumed>) = 3 [pid 5661] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(9 [pid 5663] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5662] write(3, "1000", 4 [pid 5661] close(3 [pid 5660] close(10 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./92/cgroup" [pid 5663] <... symlink resumed>) = 0 [pid 5662] <... write resumed>) = 4 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(10 [pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5662] close(3 [pid 5661] close(4 [pid 5660] close(11 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5663] <... openat resumed>) = 3 [pid 5662] <... close resumed>) = 0 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(11 [pid 5663] write(3, "1000", 4 [pid 5662] read(200, [pid 5661] close(5 [pid 5660] close(12 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5663] <... write resumed>) = 4 [pid 5662] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(12 [pid 5663] close(3 [pid 5662] symlink("/dev/binderfs", "./binderfs" [pid 5661] close(6 [pid 5660] close(13 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5663] <... close resumed>) = 0 [pid 5662] <... symlink resumed>) = 0 [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(13 [pid 5663] read(200, [pid 5662] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5661] close(7 [pid 5660] close(14 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5662] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(14 [pid 5663] symlink("/dev/binderfs", "./binderfs" [pid 5662] close(3 [pid 5661] close(8 [pid 5660] close(15 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... symlink resumed>) = 0 [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(15 [pid 5042] close(3 [pid 5663] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5662] close(4 [pid 5661] close(9 [pid 5660] close(16 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(16 [pid 5042] <... close resumed>) = 0 [pid 5663] close(3 [pid 5662] close(5 [pid 5661] close(10 [pid 5660] close(17 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(17 [pid 5042] rmdir("./92" [pid 5663] close(4 [pid 5662] close(6 [pid 5661] close(11 [pid 5660] close(18 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(18 [pid 5042] <... rmdir resumed>) = 0 [pid 5663] close(5 [pid 5662] close(7 [pid 5661] close(12 [pid 5660] close(19 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(19 [pid 5042] mkdir("./93", 0777 [pid 5663] close(6 [pid 5662] close(8 [pid 5661] close(13 [pid 5660] close(20 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(20 [pid 5042] <... mkdir resumed>) = 0 [pid 5663] close(7 [pid 5662] close(9 [pid 5661] close(14 [pid 5660] close(21 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(21 [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5663] close(8 [pid 5662] close(10 [pid 5661] close(15 [pid 5660] close(22 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(22 [pid 5663] close(9 [pid 5662] close(11 [pid 5661] close(16 [pid 5660] close(23 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(23 [pid 5663] close(10 [pid 5662] close(12 [pid 5661] close(17 [pid 5660] close(24 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(24 [pid 5663] close(11 [pid 5662] close(13 [pid 5661] close(18 [pid 5660] close(25 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(25./strace-static-x86_64: Process 5664 attached [pid 5663] close(12 [pid 5662] close(14 [pid 5661] close(19 [pid 5660] close(26 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] set_robust_list(0x555556f426e0, 24 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(26 [pid 5664] <... set_robust_list resumed>) = 0 [pid 5663] close(13 [pid 5662] close(15 [pid 5661] close(20 [pid 5660] close(27 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 95 [pid 5664] chdir("./93" [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(27 [pid 5664] <... chdir resumed>) = 0 [pid 5663] close(14 [pid 5662] close(16 [pid 5661] close(21 [pid 5660] close(28 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(28 [pid 5664] <... prctl resumed>) = 0 [pid 5663] close(15 [pid 5662] close(17 [pid 5661] close(22 [pid 5660] close(29 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] setpgid(0, 0 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5659] close(29 [pid 5664] <... setpgid resumed>) = 0 [pid 5663] close(16 [pid 5662] close(18 [pid 5661] close(23 [pid 5660] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5659] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5664] symlink("/syzcgroup/unified/syz2", "./cgroup"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... write resumed>) = 335 [pid 5659] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5664] <... symlink resumed>) = 0 [pid 5663] close(17 [pid 5662] close(19 [pid 5661] close(24 [pid 5660] exit_group(0 [pid 5659] <... write resumed>) = 335 [pid 5664] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] <... exit_group resumed>) = ? [pid 5659] exit_group(0 [pid 5664] <... symlink resumed>) = 0 [pid 5663] close(18 [pid 5662] close(20 [pid 5661] close(25 [pid 5664] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5660] +++ exited with 0 +++ [pid 5659] <... exit_group resumed>) = ? [pid 5664] <... symlink resumed>) = 0 [pid 5663] close(19 [pid 5662] close(21 [pid 5661] close(26 [pid 5659] +++ exited with 0 +++ [pid 5664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5664] <... openat resumed>) = 3 [pid 5663] close(20 [pid 5662] close(22 [pid 5661] close(27 [pid 5045] restart_syscall(<... resuming interrupted clone ...> [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5664] write(3, "1000", 4 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... restart_syscall resumed>) = 0 [pid 5039] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5664] <... write resumed>) = 4 [pid 5663] close(21 [pid 5662] close(23 [pid 5661] close(28 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] close(3 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5664] <... close resumed>) = 0 [pid 5663] close(22 [pid 5662] close(24write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5661] close(29 [pid 5045] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5664] read(200, [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] fstat(3, [pid 5664] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5663] close(23 [pid 5662] close(25 [pid 5661] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5664] symlink("/dev/binderfs", "./binderfs" [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... write resumed>) = 335 [pid 5045] <... openat resumed>) = 3 [pid 5039] getdents64(3, [pid 5664] <... symlink resumed>) = 0 [pid 5663] close(24 [pid 5662] close(26 [pid 5661] exit_group(0 [pid 5045] fstat(3, [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5664] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5661] <... exit_group resumed>) = ? [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5664] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(25 [pid 5662] close(27 [pid 5661] +++ exited with 0 +++ [pid 5045] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] close(3 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5039] lstat("./87/binderfs", [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(26 [pid 5662] close(28 [pid 5045] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5664] close(4 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./87/binderfs" [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(27 [pid 5662] close(29 [pid 5045] lstat("./99/binderfs", [pid 5039] <... unlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5664] close(5 [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] umount2("./87/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] close(28 [pid 5662] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] unlink("./99/binderfs" [pid 5662] <... write resumed>) = 335 [pid 5664] close(6 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] exit_group(0 [pid 5045] <... unlink resumed>) = 0 [pid 5664] close(7 [pid 5663] close(29 [pid 5662] <... exit_group resumed>) = ? [pid 5045] umount2("./99/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./87/cgroup.net", [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5662] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5664] close(8 [pid 5663] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] lstat("./99/cgroup.net", [pid 5044] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5039] unlink("./87/cgroup.net" [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... write resumed>) = 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... openat resumed>) = 3 [pid 5039] <... unlink resumed>) = 0 [pid 5664] close(9 [pid 5663] exit_group(0 [pid 5045] unlink("./99/cgroup.net" [pid 5044] fstat(3, [pid 5039] umount2("./87/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] <... exit_group resumed>) = ? [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] close(10 [pid 5045] umount2("./99/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] getdents64(3, [pid 5039] lstat("./87/cgroup.cpu", [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5664] close(11 [pid 5045] lstat("./99/cgroup.cpu", [pid 5044] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./87/cgroup.cpu" [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5663] +++ exited with 0 +++ [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] close(12 [pid 5045] unlink("./99/cgroup.cpu" [pid 5044] lstat("./97/binderfs", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5039] <... unlink resumed>) = 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5043] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] umount2("./87/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5664] close(13 [pid 5045] umount2("./99/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] unlink("./97/binderfs" [pid 5043] <... openat resumed>) = 3 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] close(14 [pid 5045] lstat("./99/cgroup", [pid 5044] <... unlink resumed>) = 0 [pid 5043] fstat(3, [pid 5039] lstat("./87/cgroup", [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5040] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5664] close(15 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] umount2("./97/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] getdents64(3, [pid 5040] fstat(3, {st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5040] getdents64(3, [pid 5039] unlink("./87/cgroup" [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./99/cgroup" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5664] close(16 [pid 5045] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] lstat("./97/cgroup.net", [pid 5043] lstat("./94/binderfs", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] close(17 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] lstat("./91/binderfs", [pid 5039] getdents64(3, [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] unlink("./97/cgroup.net" [pid 5043] unlink("./94/binderfs" [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5664] close(18 [pid 5045] <... close resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] unlink("./91/binderfs" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] rmdir("./99" [pid 5044] umount2("./97/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./94/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5664] close(19 [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./91/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] close(3 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] mkdir("./100", 0777 [pid 5044] lstat("./97/cgroup.cpu", [pid 5043] lstat("./94/cgroup.net", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] close(20 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] lstat("./91/cgroup.net", [pid 5039] <... close resumed>) = 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] unlink("./97/cgroup.cpu" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 ./strace-static-x86_64: Process 5665 attached [pid 5664] close(21 [pid 5044] <... unlink resumed>) = 0 [pid 5043] unlink("./94/cgroup.net" [pid 5040] unlink("./91/cgroup.net" [pid 5039] rmdir("./87" [pid 5665] set_robust_list(0x555556f426e0, 24 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 102 [pid 5044] umount2("./97/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5665] <... set_robust_list resumed>) = 0 [pid 5664] close(22 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./94/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./91/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... rmdir resumed>) = 0 [pid 5665] chdir("./100" [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] lstat("./97/cgroup", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] mkdir("./88", 0777 [pid 5665] <... chdir resumed>) = 0 [pid 5664] close(23 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./97/cgroup" [pid 5043] lstat("./94/cgroup.cpu", [pid 5040] lstat("./91/cgroup.cpu", [pid 5039] <... mkdir resumed>) = 0 [pid 5665] <... prctl resumed>) = 0 [pid 5664] close(24 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5665] setpgid(0, 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] getdents64(3, [pid 5043] unlink("./94/cgroup.cpu" [pid 5040] unlink("./91/cgroup.cpu" [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5665] <... setpgid resumed>) = 0 [pid 5664] close(25 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5665] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5040] umount2("./91/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5665] <... symlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5665] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5040] lstat("./91/cgroup", [pid 5665] <... symlink resumed>) = 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] close(3 [pid 5043] umount2("./94/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5665] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5040] unlink("./91/cgroup"./strace-static-x86_64: Process 5666 attached [pid 5665] <... symlink resumed>) = 0 [pid 5664] close(26 [pid 5044] <... close resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 90 [pid 5666] set_robust_list(0x555556f426e0, 24 [pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] rmdir("./97" [pid 5043] lstat("./94/cgroup", [pid 5040] getdents64(3, [pid 5666] <... set_robust_list resumed>) = 0 [pid 5665] <... openat resumed>) = 3 [pid 5664] close(27 [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5665] write(3, "1000", 4 [pid 5040] close(3 [pid 5665] <... write resumed>) = 4 [pid 5040] <... close resumed>) = 0 [pid 5665] close(3 [pid 5040] rmdir("./91" [pid 5666] chdir("./88" [pid 5665] <... close resumed>) = 0 [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] mkdir("./98", 0777 [pid 5043] unlink("./94/cgroup" [pid 5040] <... rmdir resumed>) = 0 [pid 5666] <... chdir resumed>) = 0 [pid 5665] read(200, [pid 5664] close(28 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] mkdir("./92", 0777 [pid 5666] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5665] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] getdents64(3, [pid 5040] <... mkdir resumed>) = 0 [pid 5666] <... prctl resumed>) = 0 [pid 5665] symlink("/dev/binderfs", "./binderfs" [pid 5664] close(29 [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5667 attached ./strace-static-x86_64: Process 5668 attached [pid 5666] setpgid(0, 0 [pid 5665] <... symlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5664] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5668] set_robust_list(0x555556f426e0, 24 [pid 5667] set_robust_list(0x555556f426e0, 24 [pid 5666] <... setpgid resumed>) = 0 [pid 5665] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5667] <... set_robust_list resumed>) = 0 [pid 5665] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 94 [pid 5668] chdir("./98" [pid 5667] chdir("./92" [pid 5666] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5665] close(3 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 100 [pid 5043] close(3 [pid 5668] <... chdir resumed>) = 0 [pid 5667] <... chdir resumed>) = 0 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... write resumed>) = 335 [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5666] <... symlink resumed>) = 0 [pid 5665] close(4 [pid 5664] exit_group(0 [pid 5043] <... close resumed>) = 0 [pid 5668] <... prctl resumed>) = 0 [pid 5667] <... prctl resumed>) = 0 [pid 5666] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] <... exit_group resumed>) = ? [pid 5043] rmdir("./94" [pid 5668] setpgid(0, 0 [pid 5667] setpgid(0, 0 [pid 5666] <... symlink resumed>) = 0 [pid 5665] close(5 [pid 5668] <... setpgid resumed>) = 0 [pid 5667] <... setpgid resumed>) = 0 [pid 5666] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... rmdir resumed>) = 0 [pid 5668] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5667] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5665] close(6 [pid 5668] <... symlink resumed>) = 0 [pid 5667] <... symlink resumed>) = 0 [pid 5666] <... symlink resumed>) = 0 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5664] +++ exited with 0 +++ [pid 5043] mkdir("./95", 0777 [pid 5668] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5667] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5665] close(7 [pid 5043] <... mkdir resumed>) = 0 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5668] <... symlink resumed>) = 0 [pid 5667] <... symlink resumed>) = 0 [pid 5666] <... openat resumed>) = 3 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5668] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5667] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5666] write(3, "1000", 4 [pid 5665] close(8 [pid 5668] <... symlink resumed>) = 0 [pid 5667] <... symlink resumed>) = 0 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5666] <... write resumed>) = 4 [pid 5665] close(9 [pid 5668] <... openat resumed>) = 3 [pid 5667] <... openat resumed>) = 3 [pid 5666] close(3 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5669 attached [pid 5668] write(3, "1000", 4 [pid 5667] write(3, "1000", 4 [pid 5666] <... close resumed>) = 0 [pid 5665] close(10 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5669] set_robust_list(0x555556f426e0, 24 [pid 5668] <... write resumed>) = 4 [pid 5667] <... write resumed>) = 4 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] <... set_robust_list resumed>) = 0 [pid 5668] close(3 [pid 5667] close(3 [pid 5666] read(200, [pid 5665] close(11 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 97 [pid 5042] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5668] <... close resumed>) = 0 [pid 5667] <... close resumed>) = 0 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] read(200, [pid 5667] read(200, [pid 5666] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5665] close(12 [pid 5042] <... openat resumed>) = 3 [pid 5669] chdir("./95" [pid 5668] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5667] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5666] symlink("/dev/binderfs", "./binderfs" [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] fstat(3, [pid 5669] <... chdir resumed>) = 0 [pid 5668] symlink("/dev/binderfs", "./binderfs" [pid 5667] symlink("/dev/binderfs", "./binderfs" [pid 5666] <... symlink resumed>) = 0 [pid 5665] close(13 [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5668] <... symlink resumed>) = 0 [pid 5667] <... symlink resumed>) = 0 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5666] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5669] <... prctl resumed>) = 0 [pid 5668] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5667] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5665] close(14 [pid 5042] getdents64(3, [pid 5669] setpgid(0, 0 [pid 5668] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] <... setpgid resumed>) = 0 [pid 5668] close(3 [pid 5667] close(3 [pid 5666] close(3 [pid 5665] close(15 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5669] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5669] <... symlink resumed>) = 0 [pid 5668] close(4 [pid 5667] close(4 [pid 5665] close(16 [pid 5669] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(4 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5669] <... symlink resumed>) = 0 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./93/binderfs", [pid 5669] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5668] close(5 [pid 5667] close(5 [pid 5666] close(5 [pid 5665] close(17 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5669] <... symlink resumed>) = 0 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./93/binderfs" [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5668] close(6 [pid 5667] close(6 [pid 5666] close(6 [pid 5665] close(18 [pid 5042] <... unlink resumed>) = 0 [pid 5669] <... openat resumed>) = 3 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./93/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5669] write(3, "1000", 4 [pid 5668] close(7 [pid 5667] close(7 [pid 5665] close(19 [pid 5669] <... write resumed>) = 4 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(3 [pid 5668] close(8 [pid 5667] close(8 [pid 5666] close(7 [pid 5665] close(20 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5669] <... close resumed>) = 0 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./93/cgroup.net", [pid 5669] read(200, [pid 5668] close(9 [pid 5667] close(9 [pid 5666] close(8 [pid 5665] close(21 [pid 5669] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5669] symlink("/dev/binderfs", "./binderfs" [pid 5668] close(10 [pid 5667] close(10 [pid 5665] close(22 [pid 5669] <... symlink resumed>) = 0 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(9 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./93/cgroup.net" [pid 5669] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5668] close(11 [pid 5667] close(11 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(23 [pid 5669] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5666] close(10 [pid 5669] close(3 [pid 5668] close(12 [pid 5667] close(12 [pid 5665] close(24 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./93/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(4 [pid 5668] close(13 [pid 5667] close(13 [pid 5666] close(11 [pid 5665] close(25 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(5 [pid 5668] close(14 [pid 5667] close(14 [pid 5666] close(12 [pid 5665] close(26 [pid 5042] lstat("./93/cgroup.cpu", [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(6 [pid 5668] close(15 [pid 5667] close(15 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(27 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(13 [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./93/cgroup.cpu" [pid 5669] close(7 [pid 5668] close(16 [pid 5667] close(16 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] close(28 [pid 5042] <... unlink resumed>) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] close(8 [pid 5668] close(17 [pid 5667] close(17 [pid 5666] close(14 [pid 5665] close(29 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./93/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5665] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5669] close(9 [pid 5668] close(18 [pid 5667] close(18 [pid 5666] close(15 [pid 5665] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... write resumed>) = 335 [pid 5042] lstat("./93/cgroup", [pid 5669] close(10 [pid 5668] close(19 [pid 5667] close(19 [pid 5666] close(16 [pid 5665] exit_group(0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5665] <... exit_group resumed>) = ? [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5669] close(11 [pid 5668] close(20 [pid 5667] close(20 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./93/cgroup" [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(17 [pid 5665] +++ exited with 0 +++ [pid 5669] close(12 [pid 5668] close(21 [pid 5667] close(21 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5042] <... unlink resumed>) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(18 [pid 5669] close(13 [pid 5668] close(22 [pid 5667] close(22 [pid 5042] getdents64(3, [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5669] close(14 [pid 5668] close(23 [pid 5667] close(23 [pid 5666] close(19 [pid 5042] close(3 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... close resumed>) = 0 [pid 5669] close(15 [pid 5668] close(24 [pid 5667] close(24 [pid 5666] close(20 [pid 5045] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] rmdir("./93" [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5669] close(16 [pid 5668] close(25 [pid 5667] close(25 [pid 5045] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] <... rmdir resumed>) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] close(21 [pid 5045] <... openat resumed>) = 3 [pid 5669] close(17 [pid 5668] close(26 [pid 5667] close(26 [pid 5045] fstat(3, [pid 5042] mkdir("./94", 0777 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5669] close(18 [pid 5668] close(27 [pid 5667] close(27 [pid 5666] close(22 [pid 5042] <... mkdir resumed>) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5669] close(19 [pid 5668] close(28 [pid 5667] close(28 [pid 5666] close(23 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 ./strace-static-x86_64: Process 5670 attached [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] set_robust_list(0x555556f426e0, 24 [pid 5666] close(24 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 96 [pid 5670] <... set_robust_list resumed>) = 0 [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5669] close(20 [pid 5670] chdir("./94" [pid 5668] close(29 [pid 5667] close(29 [pid 5666] close(25 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5670] <... chdir resumed>) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./100/binderfs", [pid 5670] prctl(PR_SET_PDEATHSIG, SIGKILLwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5669] close(21 [pid 5668] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5667] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5666] close(26 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5670] <... prctl resumed>) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... write resumed>) = 335 [pid 5667] <... write resumed>) = 335 [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./100/binderfs" [pid 5670] setpgid(0, 0 [pid 5669] close(22 [pid 5668] exit_group(0 [pid 5667] exit_group(0 [pid 5666] close(27 [pid 5045] <... unlink resumed>) = 0 [pid 5670] <... setpgid resumed>) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5668] <... exit_group resumed>) = ? [pid 5667] <... exit_group resumed>) = ? [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5669] close(23 [pid 5668] +++ exited with 0 +++ [pid 5666] close(28 [pid 5045] umount2("./100/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] <... symlink resumed>) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5667] +++ exited with 0 +++ [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5670] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5669] close(24 [pid 5666] close(29 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5670] <... symlink resumed>) = 0 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5666] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] <... symlink resumed>) = 0 [pid 5669] close(25 [pid 5666] <... write resumed>) = 335 [pid 5045] lstat("./100/cgroup.net", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5666] exit_group(0 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] restart_syscall(<... resuming interrupted clone ...> [pid 5670] <... openat resumed>) = 3 [pid 5669] close(26 [pid 5666] <... exit_group resumed>) = ? [pid 5045] unlink("./100/cgroup.net" [pid 5044] <... openat resumed>) = 3 [pid 5670] write(3, "1000", 4 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] fstat(3, [pid 5040] <... restart_syscall resumed>) = 0 [pid 5670] <... write resumed>) = 4 [pid 5669] close(27 [pid 5666] +++ exited with 0 +++ [pid 5045] umount2("./100/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5670] close(3 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] getdents64(3, [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5670] <... close resumed>) = 0 [pid 5669] close(28 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5670] read(200, [pid 5044] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./100/cgroup.cpu", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] symlink("/dev/binderfs", "./binderfs"write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5669] close(29 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] lstat("./98/binderfs", [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5670] <... symlink resumed>) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5670] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5044] unlink("./98/binderfs" [pid 5040] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... openat resumed>) = 3 [pid 5670] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5039] fstat(3, [pid 5670] close(3 [pid 5669] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./98/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] unlink("./100/cgroup.cpu" [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... openat resumed>) = 3 [pid 5039] getdents64(3, [pid 5670] close(4 [pid 5669] <... write resumed>) = 335 [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./98/cgroup.net", [pid 5040] fstat(3, [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5669] exit_group(0 [pid 5045] umount2("./100/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] close(5 [pid 5669] <... exit_group resumed>) = ? [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] unlink("./98/cgroup.net" [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5039] lstat("./88/binderfs", [pid 5670] close(6 [pid 5044] umount2("./98/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./88/binderfs" [pid 5670] close(7 [pid 5669] +++ exited with 0 +++ [pid 5045] lstat("./100/cgroup", [pid 5044] lstat("./98/cgroup.cpu", [pid 5040] getdents64(3, [pid 5039] <... unlink resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5039] umount2("./88/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] close(8 [pid 5044] unlink("./98/cgroup.cpu" [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5039] lstat("./88/cgroup.net", [pid 5670] close(9 [pid 5044] umount2("./98/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./100/cgroup" [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] unlink("./88/cgroup.net" [pid 5670] close(10 [pid 5045] <... unlink resumed>) = 0 [pid 5044] lstat("./98/cgroup", [pid 5043] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... unlink resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] <... openat resumed>) = 3 [pid 5040] lstat("./92/binderfs", [pid 5039] umount2("./88/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] close(11 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] unlink("./98/cgroup" [pid 5043] fstat(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] lstat("./88/cgroup.cpu", [pid 5670] close(12 [pid 5044] getdents64(3, [pid 5043] getdents64(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./92/binderfs" [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... close resumed>) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] unlink("./88/cgroup.cpu" [pid 5670] close(13 [pid 5045] rmdir("./100" [pid 5044] close(3 [pid 5043] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./88/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] close(14 [pid 5044] rmdir("./98" [pid 5045] mkdir("./101", 0777 [pid 5043] lstat("./95/binderfs", [pid 5040] umount2("./92/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] lstat("./88/cgroup", [pid 5670] close(15 [pid 5045] <... mkdir resumed>) = 0 [pid 5044] mkdir("./99", 0777 [pid 5043] unlink("./95/binderfs" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5040] lstat("./92/cgroup.net", [pid 5039] unlink("./88/cgroup" [pid 5670] close(16 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] umount2("./95/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5671 attached [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] getdents64(3, ./strace-static-x86_64: Process 5672 attached [pid 5671] set_robust_list(0x555556f426e0, 24 [pid 5670] close(17 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 101 [pid 5043] lstat("./95/cgroup.net", [pid 5040] unlink("./92/cgroup.net" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5672] set_robust_list(0x555556f426e0, 24 [pid 5671] <... set_robust_list resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] close(3 [pid 5672] <... set_robust_list resumed>) = 0 [pid 5671] chdir("./99" [pid 5670] close(18 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 103 [pid 5043] unlink("./95/cgroup.net" [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... close resumed>) = 0 [pid 5672] chdir("./101" [pid 5671] <... chdir resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5039] rmdir("./88" [pid 5672] <... chdir resumed>) = 0 [pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5670] close(19 [pid 5043] umount2("./95/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./92/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... rmdir resumed>) = 0 [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5671] <... prctl resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] mkdir("./89", 0777 [pid 5672] <... prctl resumed>) = 0 [pid 5671] setpgid(0, 0 [pid 5670] close(20 [pid 5043] lstat("./95/cgroup.cpu", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... mkdir resumed>) = 0 [pid 5672] setpgid(0, 0 [pid 5671] <... setpgid resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5673 attached [pid 5672] <... setpgid resumed>) = 0 [pid 5671] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5670] close(21 [pid 5043] unlink("./95/cgroup.cpu" [pid 5040] lstat("./92/cgroup.cpu", [pid 5673] set_robust_list(0x555556f426e0, 24 [pid 5672] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5671] <... symlink resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5673] <... set_robust_list resumed>) = 0 [pid 5672] <... symlink resumed>) = 0 [pid 5671] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5670] close(22 [pid 5043] umount2("./95/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 91 [pid 5040] unlink("./92/cgroup.cpu" [pid 5672] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5671] <... symlink resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... unlink resumed>) = 0 [pid 5671] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5670] close(23 [pid 5040] umount2("./92/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5672] <... symlink resumed>) = 0 [pid 5671] <... symlink resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./95/cgroup", [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5670] close(24 [pid 5040] lstat("./92/cgroup", [pid 5673] chdir("./89" [pid 5672] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5671] <... openat resumed>) = 3 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5673] <... chdir resumed>) = 0 [pid 5672] <... symlink resumed>) = 0 [pid 5671] write(3, "1000", 4 [pid 5670] close(25 [pid 5043] unlink("./95/cgroup" [pid 5673] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5671] <... write resumed>) = 4 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5040] unlink("./92/cgroup" [pid 5673] <... prctl resumed>) = 0 [pid 5672] <... openat resumed>) = 3 [pid 5043] getdents64(3, [pid 5673] setpgid(0, 0 [pid 5672] write(3, "1000", 4 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5673] <... setpgid resumed>) = 0 [pid 5672] <... write resumed>) = 4 [pid 5043] close(3 [pid 5673] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5672] close(3 [pid 5671] close(3 [pid 5670] close(26 [pid 5043] <... close resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5673] <... symlink resumed>) = 0 [pid 5672] <... close resumed>) = 0 [pid 5671] <... close resumed>) = 0 [pid 5043] rmdir("./95" [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5672] read(200, [pid 5043] <... rmdir resumed>) = 0 [pid 5673] <... symlink resumed>) = 0 [pid 5672] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5671] read(200, [pid 5670] close(27 [pid 5043] mkdir("./96", 0777 [pid 5040] getdents64(3, [pid 5673] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5672] symlink("/dev/binderfs", "./binderfs" [pid 5671] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... mkdir resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5673] <... symlink resumed>) = 0 [pid 5672] <... symlink resumed>) = 0 [pid 5671] symlink("/dev/binderfs", "./binderfs" [pid 5670] close(28 [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5674 attached [pid 5673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5672] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5671] <... symlink resumed>) = 0 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] close(3 [pid 5674] set_robust_list(0x555556f426e0, 24 [pid 5673] <... openat resumed>) = 3 [pid 5672] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 98 [pid 5670] close(29 [pid 5674] <... set_robust_list resumed>) = 0 [pid 5673] write(3, "1000", 4 [pid 5672] close(3 [pid 5671] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... close resumed>) = 0 [pid 5674] chdir("./96" [pid 5673] <... write resumed>) = 4 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... chdir resumed>) = 0 [pid 5673] close(3 [pid 5672] close(4 [pid 5671] close(3 [pid 5670] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] rmdir("./92" [pid 5674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5673] <... close resumed>) = 0 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5670] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5674] <... prctl resumed>) = 0 [pid 5673] read(200, [pid 5672] close(5 [pid 5671] close(4 [pid 5040] <... rmdir resumed>) = 0 [pid 5674] setpgid(0, 0 [pid 5673] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] <... write resumed>) = 335 [pid 5040] mkdir("./93", 0777 [pid 5674] <... setpgid resumed>) = 0 [pid 5673] symlink("/dev/binderfs", "./binderfs" [pid 5672] close(6 [pid 5671] close(5 [pid 5670] exit_group(0 [pid 5674] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5673] <... symlink resumed>) = 0 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5670] <... exit_group resumed>) = ? [pid 5040] <... mkdir resumed>) = 0 [pid 5674] <... symlink resumed>) = 0 [pid 5673] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5672] close(7 [pid 5671] close(6 [pid 5674] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5673] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... symlink resumed>) = 0 [pid 5673] close(3 [pid 5672] close(8 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5674] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(7 [pid 5670] +++ exited with 0 +++ [pid 5674] <... symlink resumed>) = 0 [pid 5673] close(4 [pid 5672] close(9 [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... openat resumed>) = 3 [pid 5673] close(5 [pid 5672] close(10 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5675 attached [pid 5674] write(3, "1000", 4 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(8 [pid 5042] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5675] set_robust_list(0x555556f426e0, 24 [pid 5674] <... write resumed>) = 4 [pid 5673] close(6 [pid 5672] close(11 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 95 [pid 5675] <... set_robust_list resumed>) = 0 [pid 5674] close(3 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(9 [pid 5042] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5675] chdir("./93" [pid 5674] <... close resumed>) = 0 [pid 5673] close(7 [pid 5672] close(12 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5675] <... chdir resumed>) = 0 [pid 5674] read(200, [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(10 [pid 5042] fstat(3, [pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5674] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5673] close(8 [pid 5672] close(13 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5675] <... prctl resumed>) = 0 [pid 5674] symlink("/dev/binderfs", "./binderfs" [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(11 [pid 5042] getdents64(3, [pid 5675] setpgid(0, 0 [pid 5674] <... symlink resumed>) = 0 [pid 5673] close(9 [pid 5672] close(14 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5675] <... setpgid resumed>) = 0 [pid 5674] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(12 [pid 5042] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5675] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5674] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(10 [pid 5672] close(15 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5675] <... symlink resumed>) = 0 [pid 5674] close(3 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(13 [pid 5042] lstat("./94/binderfs", [pid 5675] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(11 [pid 5672] close(16 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5675] <... symlink resumed>) = 0 [pid 5674] close(4 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(14 [pid 5042] unlink("./94/binderfs" [pid 5675] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(12 [pid 5672] close(17 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5675] <... symlink resumed>) = 0 [pid 5674] close(5 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(15 [pid 5042] umount2("./94/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] close(13 [pid 5672] close(18 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5675] <... openat resumed>) = 3 [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(16 [pid 5675] write(3, "1000", 4 [pid 5674] close(6 [pid 5673] close(14 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./94/cgroup.net", [pid 5675] <... write resumed>) = 4 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(19 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(7 [pid 5671] close(17 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5675] close(3 [pid 5673] close(15 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] <... close resumed>) = 0 [pid 5675] read(200, [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(20 [pid 5671] close(18 [pid 5675] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5674] close(8 [pid 5673] close(16 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./94/cgroup.net" [pid 5675] symlink("/dev/binderfs", "./binderfs" [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(21 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5675] <... symlink resumed>) = 0 [pid 5674] close(9 [pid 5673] close(17 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(19 [pid 5042] umount2("./94/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5675] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(22 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5675] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(10 [pid 5673] close(18 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(20 [pid 5042] lstat("./94/cgroup.cpu", [pid 5675] close(3 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(23 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(11 [pid 5673] close(19 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(21 [pid 5042] unlink("./94/cgroup.cpu" [pid 5675] close(4 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(24 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(12 [pid 5673] close(20 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(22 [pid 5042] umount2("./94/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5675] close(5 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(25 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(13 [pid 5673] close(21 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(23 [pid 5042] lstat("./94/cgroup", [pid 5675] close(6 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(26 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(14 [pid 5673] close(22 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] close(24 [pid 5042] unlink("./94/cgroup" [pid 5675] close(7 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(27 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(15 [pid 5673] close(23 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5671] close(25 [pid 5675] close(8 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(28 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(16 [pid 5673] close(24 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] getdents64(3, [pid 5675] close(9 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] close(29 [pid 5671] close(26 [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(17 [pid 5673] close(25 [pid 5672] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] close(3write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5675] close(10 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5671] close(27 [pid 5042] <... close resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(18 [pid 5673] close(26 [pid 5672] <... write resumed>) = 335 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] rmdir("./94" [pid 5675] close(11 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] exit_group(0 [pid 5671] close(28 [pid 5042] <... rmdir resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(19 [pid 5673] close(27 [pid 5672] <... exit_group resumed>) = ? [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] mkdir("./95", 0777 [pid 5675] close(12 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5672] +++ exited with 0 +++ [pid 5671] close(29 [pid 5042] <... mkdir resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(20 [pid 5673] close(28 [pid 5671] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5675] close(13 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=103, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5676 attached [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(21 [pid 5673] close(29 [pid 5671] <... write resumed>) = 335 [pid 5676] set_robust_list(0x555556f426e0, 24 [pid 5675] close(14 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5673] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5671] exit_group(0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 97 [pid 5676] <... set_robust_list resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(22 [pid 5673] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5671] <... exit_group resumed>) = ? [pid 5676] chdir("./95" [pid 5675] close(15 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... write resumed>) = 335 [pid 5671] +++ exited with 0 +++ [pid 5676] <... chdir resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(23 [pid 5673] exit_group(0 [pid 5676] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5675] close(16 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] <... exit_group resumed>) = ? [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5676] <... prctl resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(24 [pid 5045] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5676] setpgid(0, 0 [pid 5675] close(17 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5673] +++ exited with 0 +++ [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5676] <... setpgid resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(25 [pid 5045] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5045] fstat(3, [pid 5676] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5675] close(18 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5045] getdents64(3, 0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5045] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5045] lstat("./101/binderfs", [pid 5676] <... symlink resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] close(26 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5676] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5675] close(19 [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./101/binderfs" [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] <... openat resumed>) = 3 [pid 5045] umount2("./101/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5045] lstat("./101/cgroup.net", [pid 5674] close(27 [pid 5676] <... symlink resumed>) = 0 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5675] close(20 [pid 5045] unlink("./101/cgroup.net" [pid 5044] fstat(3, [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5039] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5045] umount2("./101/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5045] lstat("./101/cgroup.cpu", [pid 5675] close(21 [pid 5674] close(28 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5676] <... symlink resumed>) = 0 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./101/cgroup.cpu" [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5675] close(22 [pid 5674] close(29 [pid 5045] <... unlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5039] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5045] umount2("./101/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5676] <... openat resumed>) = 3 [pid 5045] lstat("./101/cgroup", [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5675] close(23 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5674] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5676] write(3, "1000", 4 [pid 5045] unlink("./101/cgroup" [pid 5044] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... openat resumed>) = 3 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5045] getdents64(3, [pid 5674] <... write resumed>) = 335 [pid 5676] <... write resumed>) = 4 [pid 5675] close(24 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5674] exit_group(0 [pid 5039] fstat(3, [pid 5676] close(3 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] <... exit_group resumed>) = ? [pid 5045] close(3 [pid 5044] lstat("./99/binderfs", [pid 5045] <... close resumed>) = 0 [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5676] <... close resumed>) = 0 [pid 5675] close(25 [pid 5045] rmdir("./101") = 0 [pid 5676] read(200, [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5674] +++ exited with 0 +++ [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] getdents64(3, [pid 5676] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5675] close(26 [pid 5045] mkdir("./102", 0777 [pid 5044] unlink("./99/binderfs" [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5676] symlink("/dev/binderfs", "./binderfs" [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5039] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5676] <... symlink resumed>) = 0 [pid 5675] close(27 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5044] umount2("./99/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5676] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] lstat("./89/binderfs", [pid 5676] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] close(28 [pid 5044] lstat("./99/cgroup.net", [pid 5043] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5677 attached [pid 5676] close(3 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] <... openat resumed>) = 3 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5039] unlink("./89/binderfs" [pid 5677] set_robust_list(0x555556f426e0, 24 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] close(29 [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 104 [pid 5044] unlink("./99/cgroup.net" [pid 5043] fstat(3, [pid 5039] <... unlink resumed>) = 0 [pid 5676] close(4 [pid 5675] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] umount2("./89/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] <... set_robust_list resumed>) = 0 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5043] getdents64(3, [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] chdir("./102" [pid 5676] close(5 [pid 5675] <... write resumed>) = 335 [pid 5044] umount2("./99/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] lstat("./89/cgroup.net", [pid 5677] <... chdir resumed>) = 0 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] exit_group(0 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] lstat("./99/cgroup.cpu", [pid 5677] <... prctl resumed>) = 0 [pid 5675] <... exit_group resumed>) = ? [pid 5676] close(6 [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5677] setpgid(0, 0 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5675] +++ exited with 0 +++ [pid 5044] unlink("./99/cgroup.cpu" [pid 5677] <... setpgid resumed>) = 0 [pid 5676] close(7 [pid 5044] <... unlink resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./89/cgroup.net" [pid 5677] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./99/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] lstat("./96/binderfs", [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5039] <... unlink resumed>) = 0 [pid 5677] <... symlink resumed>) = 0 [pid 5676] close(8 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5040] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] umount2("./89/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5044] lstat("./99/cgroup", [pid 5677] <... symlink resumed>) = 0 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] unlink("./96/binderfs" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5676] close(9 [pid 5043] <... unlink resumed>) = 0 [pid 5040] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] lstat("./89/cgroup.cpu", [pid 5677] <... symlink resumed>) = 0 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] unlink("./99/cgroup" [pid 5043] umount2("./96/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... openat resumed>) = 3 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5676] close(10 [pid 5044] <... unlink resumed>) = 0 [pid 5677] <... openat resumed>) = 3 [pid 5044] getdents64(3, [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] fstat(3, [pid 5039] unlink("./89/cgroup.cpu" [pid 5677] write(3, "1000", 4 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5677] <... write resumed>) = 4 [pid 5044] close(3 [pid 5043] lstat("./96/cgroup.net", [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5677] close(3 [pid 5676] close(11 [pid 5044] <... close resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5677] <... close resumed>) = 0 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] rmdir("./99" [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] getdents64(3, [pid 5677] read(200, [pid 5676] close(12 [pid 5044] <... rmdir resumed>) = 0 [pid 5039] umount2("./89/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] mkdir("./100", 0777 [pid 5043] unlink("./96/cgroup.net" [pid 5677] symlink("/dev/binderfs", "./binderfs" [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... mkdir resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] <... symlink resumed>) = 0 [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5678 attached [pid 5677] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5676] close(13 [pid 5043] <... unlink resumed>) = 0 [pid 5040] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] lstat("./89/cgroup", [pid 5678] set_robust_list(0x555556f426e0, 24 [pid 5677] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./96/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5678] <... set_robust_list resumed>) = 0 [pid 5677] close(3 [pid 5676] close(14 [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 102 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5678] chdir("./100" [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5678] <... chdir resumed>) = 0 [pid 5677] close(4 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./93/binderfs", [pid 5039] unlink("./89/cgroup" [pid 5678] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... prctl resumed>) = 0 [pid 5677] close(5 [pid 5678] setpgid(0, 0 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... setpgid resumed>) = 0 [pid 5677] close(6 [pid 5678] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(15 [pid 5043] lstat("./96/cgroup.cpu", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5678] <... symlink resumed>) = 0 [pid 5677] close(7 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] unlink("./93/binderfs" [pid 5039] getdents64(3, [pid 5678] <... symlink resumed>) = 0 [pid 5677] close(8 [pid 5676] close(16 [pid 5678] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./96/cgroup.cpu" [pid 5040] <... unlink resumed>) = 0 [pid 5678] <... symlink resumed>) = 0 [pid 5677] close(9 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... unlink resumed>) = 0 [pid 5040] umount2("./93/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5678] <... openat resumed>) = 3 [pid 5677] close(10 [pid 5676] close(17 [pid 5039] close(3 [pid 5678] write(3, "1000", 4 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... write resumed>) = 4 [pid 5677] close(11 [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./96/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... close resumed>) = 0 [pid 5678] close(3 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] close(18 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] lstat("./93/cgroup.net", [pid 5039] rmdir("./89" [pid 5678] <... close resumed>) = 0 [pid 5677] close(12 [pid 5678] read(200, [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./96/cgroup", [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... rmdir resumed>) = 0 [pid 5678] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5677] close(13 [pid 5676] close(19 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5678] symlink("/dev/binderfs", "./binderfs" [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./96/cgroup" [pid 5040] unlink("./93/cgroup.net" [pid 5039] mkdir("./90", 0777 [pid 5678] <... symlink resumed>) = 0 [pid 5677] close(14 [pid 5676] close(20 [pid 5043] <... unlink resumed>) = 0 [pid 5678] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5678] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(15 [pid 5676] close(21 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5678] close(3 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] close(3 [pid 5040] umount2("./93/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(16 [pid 5676] close(22 [pid 5043] <... close resumed>) = 0 [pid 5678] close(4 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] rmdir("./96" [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(17 [pid 5676] close(23 [pid 5043] <... rmdir resumed>) = 0 [pid 5040] lstat("./93/cgroup.cpu", ./strace-static-x86_64: Process 5679 attached [pid 5678] close(5 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] mkdir("./97", 0777 [pid 5679] set_robust_list(0x555556f426e0, 24 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(18 [pid 5676] close(24 [pid 5043] <... mkdir resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 92 [pid 5679] <... set_robust_list resumed>) = 0 [pid 5678] close(6 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5680 attached [pid 5679] chdir("./90" [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(19 [pid 5676] close(25 [pid 5040] unlink("./93/cgroup.cpu" [pid 5680] set_robust_list(0x555556f426e0, 24 [pid 5679] <... chdir resumed>) = 0 [pid 5678] close(7 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 99 [pid 5040] <... unlink resumed>) = 0 [pid 5680] <... set_robust_list resumed>) = 0 [pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(20 [pid 5676] close(26 [pid 5679] <... prctl resumed>) = 0 [pid 5678] close(8 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./93/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5680] chdir("./97" [pid 5679] setpgid(0, 0 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(21 [pid 5676] close(27 [pid 5680] <... chdir resumed>) = 0 [pid 5679] <... setpgid resumed>) = 0 [pid 5678] close(9 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5679] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(22 [pid 5676] close(28 [pid 5680] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5679] <... symlink resumed>) = 0 [pid 5678] close(10 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] lstat("./93/cgroup", [pid 5680] <... prctl resumed>) = 0 [pid 5679] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(23 [pid 5676] close(29write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5680] setpgid(0, 0 [pid 5679] <... symlink resumed>) = 0 [pid 5678] close(11 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5680] <... setpgid resumed>) = 0 [pid 5679] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(24 [pid 5676] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] unlink("./93/cgroup" [pid 5680] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5679] <... symlink resumed>) = 0 [pid 5678] close(12 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... write resumed>) = 335 [pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(25 [pid 5676] exit_group(0 [pid 5680] <... symlink resumed>) = 0 [pid 5679] <... openat resumed>) = 3 [pid 5678] close(13 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5676] <... exit_group resumed>) = ? [pid 5040] <... unlink resumed>) = 0 [pid 5680] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5679] write(3, "1000", 4 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(26 [pid 5676] +++ exited with 0 +++ [pid 5040] getdents64(3, [pid 5680] <... symlink resumed>) = 0 [pid 5679] <... write resumed>) = 4 [pid 5678] close(14 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5680] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5679] close(3 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(27 [pid 5042] restart_syscall(<... resuming interrupted clone ...> [pid 5680] <... symlink resumed>) = 0 [pid 5679] <... close resumed>) = 0 [pid 5678] close(15 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] close(3 [pid 5680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5679] read(200, [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(28 [pid 5042] <... restart_syscall resumed>) = 0 [pid 5680] <... openat resumed>) = 3 [pid 5679] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5678] close(16 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... close resumed>) = 0 [pid 5680] write(3, "1000", 4 [pid 5040] rmdir("./93" [pid 5680] <... write resumed>) = 4 [pid 5679] symlink("/dev/binderfs", "./binderfs" [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] close(29 [pid 5040] <... rmdir resumed>) = 0 [pid 5680] close(3 [pid 5040] mkdir("./94", 0777 [pid 5680] <... close resumed>) = 0 [pid 5679] <... symlink resumed>) = 0 [pid 5678] close(17 [pid 5677] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOWwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5040] <... mkdir resumed>) = 0 [pid 5680] read(200, [pid 5679] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5677] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5681 attached [pid 5680] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5679] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] close(18 [pid 5677] <... write resumed>) = 335 [pid 5042] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5680] symlink("/dev/binderfs", "./binderfs" [pid 5681] set_robust_list(0x555556f426e0, 24 [pid 5680] <... symlink resumed>) = 0 [pid 5679] close(3 [pid 5677] exit_group(0 [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 96 [pid 5681] <... set_robust_list resumed>) = 0 [pid 5680] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5681] chdir("./94" [pid 5680] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] close(19 [pid 5677] <... exit_group resumed>) = ? [pid 5042] fstat(3, [pid 5681] <... chdir resumed>) = 0 [pid 5680] close(3 [pid 5679] close(4 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5680] close(4 [pid 5042] getdents64(3, [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5680] close(5 [pid 5042] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] close(20 [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5681] <... prctl resumed>) = 0 [pid 5680] close(6 [pid 5679] close(5 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./95/binderfs", [pid 5681] setpgid(0, 0 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] close(21 [pid 5677] +++ exited with 0 +++ [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5681] <... setpgid resumed>) = 0 [pid 5680] close(7 [pid 5679] close(6 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5042] unlink("./95/binderfs" [pid 5681] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] close(22 [pid 5042] <... unlink resumed>) = 0 [pid 5680] close(8 [pid 5679] close(7 [pid 5042] umount2("./95/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5681] <... symlink resumed>) = 0 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5681] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5680] close(9 [pid 5679] close(8 [pid 5042] lstat("./95/cgroup.net", [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] close(23 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5681] <... symlink resumed>) = 0 [pid 5680] close(10 [pid 5679] close(9 [pid 5042] unlink("./95/cgroup.net" [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5681] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5680] close(11 [pid 5679] close(10 [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] umount2("./95/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5681] <... symlink resumed>) = 0 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5678] close(24 [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5680] close(12 [pid 5679] close(11 [pid 5045] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] lstat("./95/cgroup.cpu", [pid 5681] <... openat resumed>) = 3 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5681] write(3, "1000", 4 [pid 5680] close(13 [pid 5679] close(12 [pid 5678] close(25 [pid 5045] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] unlink("./95/cgroup.cpu" [pid 5681] <... write resumed>) = 4 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5042] <... unlink resumed>) = 0 [pid 5681] close(3 [pid 5680] close(14 [pid 5679] close(13 [pid 5678] close(26 [pid 5045] fstat(3, [pid 5042] umount2("./95/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5681] <... close resumed>) = 0 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5681] read(200, [pid 5680] close(15 [pid 5679] close(14 [pid 5678] close(27 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] lstat("./95/cgroup", [pid 5681] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5680] close(16 [pid 5679] close(15 [pid 5678] close(28 [pid 5045] getdents64(3, [pid 5042] unlink("./95/cgroup" [pid 5681] symlink("/dev/binderfs", "./binderfs" [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] <... unlink resumed>) = 0 [pid 5681] <... symlink resumed>) = 0 [pid 5680] close(17 [pid 5679] close(16 [pid 5678] close(29write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5045] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] getdents64(3, [pid 5681] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5681] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(18 [pid 5679] close(17 [pid 5678] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] lstat("./102/binderfs", [pid 5042] close(3 [pid 5681] close(3 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... write resumed>) = 335 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] <... close resumed>) = 0 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(19 [pid 5679] close(18 [pid 5678] exit_group(0 [pid 5045] unlink("./102/binderfs" [pid 5042] rmdir("./95" [pid 5681] close(4 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5678] <... exit_group resumed>) = ? [pid 5045] <... unlink resumed>) = 0 [pid 5042] <... rmdir resumed>) = 0 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(20 [pid 5679] close(19 [pid 5678] +++ exited with 0 +++ [pid 5045] umount2("./102/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] mkdir("./96", 0777 [pid 5681] close(5 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] <... mkdir resumed>) = 0 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(21 [pid 5679] close(20 [pid 5045] lstat("./102/cgroup.net", [pid 5044] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5682 attached [pid 5681] close(6 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5680] close(22 [pid 5679] close(21 [pid 5045] unlink("./102/cgroup.net" [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 98 [pid 5682] set_robust_list(0x555556f426e0, 24 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5682] <... set_robust_list resumed>) = 0 [pid 5681] close(7 [pid 5680] close(23 [pid 5679] close(22 [pid 5045] umount2("./102/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5682] chdir("./96" [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5682] <... chdir resumed>) = 0 [pid 5681] close(8 [pid 5680] close(24 [pid 5679] close(23 [pid 5045] lstat("./102/cgroup.cpu", [pid 5044] <... openat resumed>) = 3 [pid 5682] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5044] fstat(3, [pid 5682] <... prctl resumed>) = 0 [pid 5681] close(9 [pid 5680] close(25 [pid 5679] close(24 [pid 5045] unlink("./102/cgroup.cpu" [pid 5044] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5682] setpgid(0, 0 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... unlink resumed>) = 0 [pid 5044] getdents64(3, [pid 5682] <... setpgid resumed>) = 0 [pid 5681] close(10 [pid 5680] close(26 [pid 5679] close(25 [pid 5045] umount2("./102/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5682] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5044] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5682] <... symlink resumed>) = 0 [pid 5681] close(11 [pid 5680] close(27 [pid 5679] close(26 [pid 5045] lstat("./102/cgroup", [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5682] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... symlink resumed>) = 0 [pid 5681] close(12 [pid 5680] close(28 [pid 5679] close(27 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5044] lstat("./100/binderfs", [pid 5682] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... symlink resumed>) = 0 [pid 5681] close(13 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./102/cgroup" [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] close(29 [pid 5679] close(28 [pid 5045] <... unlink resumed>) = 0 [pid 5044] unlink("./100/binderfs" [pid 5682] <... openat resumed>) = 3 [pid 5681] close(14 [pid 5680] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5044] <... unlink resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5682] write(3, "1000", 4 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5682] <... write resumed>) = 4 [pid 5681] close(15 [pid 5680] <... write resumed>) = 335 [pid 5679] close(29 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5044] umount2("./100/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5682] close(3 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5680] exit_group(0 [pid 5679] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(3 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5682] <... close resumed>) = 0 [pid 5681] close(16 [pid 5680] <... exit_group resumed>) = ? [pid 5679] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] <... close resumed>) = 0 [pid 5044] lstat("./100/cgroup.net", [pid 5682] read(200, [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5682] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5681] close(17 [pid 5682] symlink("/dev/binderfs", "./binderfs" [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5679] <... write resumed>) = 335 [pid 5045] rmdir("./102" [pid 5682] <... symlink resumed>) = 0 [pid 5681] close(18 [pid 5680] +++ exited with 0 +++ [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5679] exit_group(0 [pid 5682] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... rmdir resumed>) = 0 [pid 5679] <... exit_group resumed>) = ? [pid 5044] unlink("./100/cgroup.net" [pid 5043] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5682] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(19 [pid 5045] mkdir("./103", 0777 [pid 5682] close(3 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(20 [pid 5682] close(4 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... mkdir resumed>) = 0 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(21 [pid 5679] +++ exited with 0 +++ [pid 5044] <... unlink resumed>) = 0 [pid 5682] close(5 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(22./strace-static-x86_64: Process 5683 attached [pid 5682] close(6 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./100/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5683] set_robust_list(0x555556f426e0, 24 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(23 [pid 5039] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5683] <... set_robust_list resumed>) = 0 [pid 5682] close(7 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5683] chdir("./103" [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(24 [pid 5039] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5683] <... chdir resumed>) = 0 [pid 5682] close(8 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... clone resumed>, child_tidptr=0x555556f426d0) = 105 [pid 5044] lstat("./100/cgroup.cpu", [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... openat resumed>) = 3 [pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(25 [pid 5039] fstat(3, [pid 5683] <... prctl resumed>) = 0 [pid 5682] close(9 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5043] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5039] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5683] setpgid(0, 0 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(26 [pid 5044] unlink("./100/cgroup.cpu" [pid 5043] <... openat resumed>) = 3 [pid 5039] getdents64(3, [pid 5683] <... setpgid resumed>) = 0 [pid 5682] close(10 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... unlink resumed>) = 0 [pid 5043] fstat(3, [pid 5039] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5683] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(27 [pid 5039] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5683] <... symlink resumed>) = 0 [pid 5682] close(11 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] umount2("./100/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5683] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(28 [pid 5044] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] getdents64(3, [pid 5039] lstat("./90/binderfs", [pid 5683] <... symlink resumed>) = 0 [pid 5682] close(12 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5683] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] close(29 [pid 5044] lstat("./100/cgroup", [pid 5043] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] unlink("./90/binderfs" [pid 5683] <... symlink resumed>) = 0 [pid 5682] close(13 [pid 5681] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5043] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECwrite to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5039] umount2("./90/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5683] <... openat resumed>) = 3 [pid 5682] close(14 [pid 5681] <... write resumed>) = 335 [pid 5044] unlink("./100/cgroup" [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5683] write(3, "1000", 4 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5681] exit_group(0 [pid 5044] <... unlink resumed>) = 0 [pid 5043] lstat("./97/binderfs", [pid 5039] lstat("./90/cgroup.net", [pid 5683] <... write resumed>) = 4 [pid 5682] close(15 [pid 5681] <... exit_group resumed>) = ? [pid 5044] getdents64(3, [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5683] close(3 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5683] <... close resumed>) = 0 [pid 5682] close(16 [pid 5044] close(3 [pid 5043] unlink("./97/binderfs" [pid 5039] unlink("./90/cgroup.net" [pid 5683] read(200, [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... close resumed>) = 0 [pid 5043] <... unlink resumed>) = 0 [pid 5683] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5682] close(17 [pid 5681] +++ exited with 0 +++ [pid 5044] rmdir("./100" [pid 5043] umount2("./97/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] <... unlink resumed>) = 0 [pid 5683] symlink("/dev/binderfs", "./binderfs" [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... rmdir resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] umount2("./90/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5683] <... symlink resumed>) = 0 [pid 5682] close(18 [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5683] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] mkdir("./101", 0777 [pid 5043] lstat("./97/cgroup.net", [pid 5039] lstat("./90/cgroup.cpu", [pid 5683] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] close(19 [pid 5044] <... mkdir resumed>) = 0 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5683] close(3 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5043] unlink("./97/cgroup.net" [pid 5040] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5684 attached [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] close(20 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] unlink("./90/cgroup.cpu" [pid 5684] set_robust_list(0x555556f426e0, 24 [pid 5683] close(4 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... clone resumed>, child_tidptr=0x555556f426d0) = 103 [pid 5043] umount2("./97/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5684] <... set_robust_list resumed>) = 0 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... openat resumed>) = 3 [pid 5684] chdir("./101" [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./97/cgroup.cpu", [pid 5040] fstat(3, [pid 5684] <... chdir resumed>) = 0 [pid 5683] close(5 [pid 5682] close(21 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5040] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5684] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./97/cgroup.cpu" [pid 5040] getdents64(3, [pid 5684] <... prctl resumed>) = 0 [pid 5683] close(6 [pid 5682] close(22 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5039] umount2("./90/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5684] setpgid(0, 0 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] umount2("./97/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5040] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5684] <... setpgid resumed>) = 0 [pid 5683] close(7 [pid 5682] close(23 [pid 5043] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5684] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] lstat("./97/cgroup", [pid 5040] lstat("./94/binderfs", [pid 5684] <... symlink resumed>) = 0 [pid 5683] close(8 [pid 5682] close(24 [pid 5043] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5039] lstat("./90/cgroup", [pid 5684] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] unlink("./97/cgroup" [pid 5040] unlink("./94/binderfs" [pid 5684] <... symlink resumed>) = 0 [pid 5683] close(9 [pid 5682] close(25 [pid 5043] <... unlink resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5684] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] getdents64(3, [pid 5040] umount2("./94/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5684] <... symlink resumed>) = 0 [pid 5683] close(10 [pid 5682] close(26 [pid 5043] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] close(3 [pid 5040] lstat("./94/cgroup.net", [pid 5684] <... openat resumed>) = 3 [pid 5683] close(11 [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... close resumed>) = 0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] unlink("./90/cgroup" [pid 5684] write(3, "1000", 4 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] rmdir("./97" [pid 5040] unlink("./94/cgroup.net" [pid 5684] <... write resumed>) = 4 [pid 5683] close(12 [pid 5682] close(27 [pid 5043] <... rmdir resumed>) = 0 [pid 5040] <... unlink resumed>) = 0 [pid 5039] <... unlink resumed>) = 0 [pid 5684] close(3 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] mkdir("./98", 0777 [pid 5040] umount2("./94/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5039] getdents64(3, [pid 5684] <... close resumed>) = 0 [pid 5683] close(13 [pid 5682] close(28 [pid 5043] <... mkdir resumed>) = 0 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5684] read(200, [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5040] lstat("./94/cgroup.cpu", [pid 5039] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5685 attached [pid 5684] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5683] close(14 [pid 5682] close(29 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5039] close(3 [pid 5685] set_robust_list(0x555556f426e0, 24 [pid 5684] symlink("/dev/binderfs", "./binderfs" [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5043] <... clone resumed>, child_tidptr=0x555556f426d0) = 100 [pid 5040] unlink("./94/cgroup.cpu" [pid 5685] <... set_robust_list resumed>) = 0 [pid 5684] <... symlink resumed>) = 0 [pid 5683] close(15 [pid 5040] <... unlink resumed>) = 0 [pid 5685] chdir("./98" [pid 5684] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] umount2("./94/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5685] <... chdir resumed>) = 0 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5684] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(16 [pid 5682] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5040] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5039] <... close resumed>) = 0 [pid 5685] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5684] close(3 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... write resumed>) = 335 [pid 5040] lstat("./94/cgroup", [pid 5039] rmdir("./90" [pid 5685] <... prctl resumed>) = 0 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(17 [pid 5682] exit_group(0 [pid 5040] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5685] setpgid(0, 0 [pid 5684] close(4 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5682] <... exit_group resumed>) = ? [pid 5040] unlink("./94/cgroup" [pid 5039] <... rmdir resumed>) = 0 [pid 5685] <... setpgid resumed>) = 0 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(18 [pid 5040] <... unlink resumed>) = 0 [pid 5685] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5684] close(5 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] getdents64(3, [pid 5685] <... symlink resumed>) = 0 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(19 [pid 5682] +++ exited with 0 +++ [pid 5040] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5039] mkdir("./91", 0777 [pid 5685] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5684] close(6 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5040] close(3 [pid 5685] <... symlink resumed>) = 0 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(20 [pid 5040] <... close resumed>) = 0 [pid 5039] <... mkdir resumed>) = 0 [pid 5685] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5684] close(7 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] rmdir("./94" [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5686 attached [pid 5685] <... symlink resumed>) = 0 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(21 [pid 5040] <... rmdir resumed>) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555556f426d0) = 93 [pid 5685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5686] set_robust_list(0x555556f426e0, 24 [pid 5684] close(8 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] mkdir("./95", 0777 [pid 5685] <... openat resumed>) = 3 [pid 5686] <... set_robust_list resumed>) = 0 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(22 [pid 5042] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5040] <... mkdir resumed>) = 0 [pid 5686] chdir("./91" [pid 5684] close(9 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5683] close(23 [pid 5686] <... chdir resumed>) = 0 [pid 5685] write(3, "1000", 4 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5040] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5684] close(10 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... openat resumed>) = 3 [pid 5686] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5685] <... write resumed>) = 4 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] close(24 [pid 5042] fstat(3, ./strace-static-x86_64: Process 5687 attached [pid 5686] <... prctl resumed>) = 0 [pid 5685] close(3 [pid 5684] close(11 [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5687] set_robust_list(0x555556f426e0, 24 [pid 5686] setpgid(0, 0 [pid 5685] <... close resumed>) = 0 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5687] <... set_robust_list resumed>) = 0 [pid 5686] <... setpgid resumed>) = 0 [pid 5685] read(200, [pid 5684] close(12 [pid 5683] close(25 [pid 5042] getdents64(3, [pid 5040] <... clone resumed>, child_tidptr=0x555556f426d0) = 97 [pid 5687] chdir("./95" [pid 5686] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5685] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5687] <... chdir resumed>) = 0 [pid 5686] <... symlink resumed>) = 0 [pid 5685] symlink("/dev/binderfs", "./binderfs" [pid 5684] close(13 [pid 5683] close(26 [pid 5042] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5686] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5685] <... symlink resumed>) = 0 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5687] <... prctl resumed>) = 0 [pid 5686] <... symlink resumed>) = 0 [pid 5685] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5684] close(14 [pid 5683] close(27 [pid 5042] lstat("./96/binderfs", [pid 5687] setpgid(0, 0 [pid 5686] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5685] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5687] <... setpgid resumed>) = 0 [pid 5686] <... symlink resumed>) = 0 [pid 5685] close(3 [pid 5684] close(15 [pid 5683] close(28 [pid 5042] unlink("./96/binderfs" [pid 5687] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... unlink resumed>) = 0 [pid 5687] <... symlink resumed>) = 0 [pid 5686] <... openat resumed>) = 3 [pid 5685] close(4 [pid 5684] close(16 [pid 5683] close(29 [pid 5042] umount2("./96/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5687] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5686] write(3, "1000", 4 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5687] <... symlink resumed>) = 0 [pid 5686] <... write resumed>) = 4 [pid 5685] close(5 [pid 5684] close(17 [pid 5683] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5042] lstat("./96/cgroup.net", [pid 5687] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5686] close(3 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... write resumed>) = 335 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5687] <... symlink resumed>) = 0 [pid 5686] <... close resumed>) = 0 [pid 5685] close(6 [pid 5684] close(18 [pid 5683] exit_group(0 [pid 5042] unlink("./96/cgroup.net" [pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5686] read(200, [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] <... exit_group resumed>) = ? [pid 5042] <... unlink resumed>) = 0 [pid 5687] <... openat resumed>) = 3 [pid 5686] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5685] close(7 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5683] +++ exited with 0 +++ [pid 5042] umount2("./96/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5687] write(3, "1000", 4 [pid 5686] symlink("/dev/binderfs", "./binderfs" [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(19 [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5687] <... write resumed>) = 4 [pid 5686] <... symlink resumed>) = 0 [pid 5685] close(8 [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=105, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] lstat("./96/cgroup.cpu", [pid 5687] close(3 [pid 5686] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(20 [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5687] <... close resumed>) = 0 [pid 5686] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(9 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] unlink("./96/cgroup.cpu" [pid 5687] read(200, [pid 5686] close(3 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(21 [pid 5045] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... unlink resumed>) = 0 [pid 5687] <... read resumed>0x7f5e14cfb8b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(10 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] umount2("./96/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5687] symlink("/dev/binderfs", "./binderfs" [pid 5686] close(4 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] close(22 [pid 5045] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5687] <... symlink resumed>) = 0 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(11 [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... openat resumed>) = 3 [pid 5042] lstat("./96/cgroup", [pid 5686] close(5 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] fstat(3, [pid 5042] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 5687] fallocate(-1, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 672267775 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(12 [pid 5684] close(23 [pid 5045] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}) = 0 [pid 5042] unlink("./96/cgroup" [pid 5687] <... fallocate resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] close(6 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] getdents64(3, [pid 5042] <... unlink resumed>) = 0 [pid 5687] close(3 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(13 [pid 5684] close(24 [pid 5045] <... getdents64 resumed>0x555556f44850 /* 6 entries */, 32768) = 176 [pid 5042] getdents64(3, [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] close(7 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... getdents64 resumed>0x555556f44850 /* 0 entries */, 32768) = 0 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(14 [pid 5684] close(25 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] close(3 [pid 5686] close(8 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./103/binderfs", [pid 5042] <... close resumed>) = 0 [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(15 [pid 5684] close(26 [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] rmdir("./96" [pid 5687] close(4 [pid 5686] close(9 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] unlink("./103/binderfs" [pid 5042] <... rmdir resumed>) = 0 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(16 [pid 5684] close(27 [pid 5045] <... unlink resumed>) = 0 [pid 5042] mkdir("./97", 0777 [pid 5687] close(5 [pid 5686] close(10 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] umount2("./103/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] <... mkdir resumed>) = 0 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(17 [pid 5684] close(28 [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5042] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5687] close(6 [pid 5686] close(11 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] lstat("./103/cgroup.net", ./strace-static-x86_64: Process 5688 attached [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(18 [pid 5684] close(29 [pid 5688] set_robust_list(0x555556f426e0, 24 [pid 5687] close(7 [pid 5686] close(12 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 5042] <... clone resumed>, child_tidptr=0x555556f426d0) = 99 [pid 5688] <... set_robust_list resumed>) = 0 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(19 [pid 5684] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335 [pid 5045] unlink("./103/cgroup.net" [pid 5688] chdir("./97" [pid 5687] close(8 [pid 5686] close(13 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... write resumed>) = 335 [pid 5045] <... unlink resumed>) = 0 [pid 5688] <... chdir resumed>) = 0 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(20 [pid 5684] exit_group(0 [pid 5045] umount2("./103/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5687] close(9 [pid 5686] close(14 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] <... exit_group resumed>) = ? [pid 5045] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5688] <... prctl resumed>) = 0 [pid 5687] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5686] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5685] close(21 [pid 5045] lstat("./103/cgroup.cpu", [pid 5688] setpgid(0, 0 [pid 5687] close(10) = -1 EBADF (Bad file descriptor) [pid 5687] close(11) = -1 EBADF (Bad file descriptor) [pid 5687] close(12) = -1 EBADF (Bad file descriptor) [pid 5687] close(13) = -1 EBADF (Bad file descriptor) [pid 5687] close(14) = -1 EBADF (Bad file descriptor) [pid 5687] close(15) = -1 EBADF (Bad file descriptor) [pid 5687] close(16) = -1 EBADF (Bad file descriptor) [pid 5687] close(17) = -1 EBADF (Bad file descriptor) [pid 5687] close(18) = -1 EBADF (Bad file descriptor) [pid 5687] close(19) = -1 EBADF (Bad file descriptor) [pid 5687] close(20) = -1 EBADF (Bad file descriptor) [pid 5687] close(21) = -1 EBADF (Bad file descriptor) [pid 5687] close(22) = -1 EBADF (Bad file descriptor) [pid 5687] close(23) = -1 EBADF (Bad file descriptor) [pid 5687] close(24) = -1 EBADF (Bad file descriptor) [ 283.516498][ T1013] ===================================================== [ 283.523774][ T1013] BUG: KMSAN: uninit-value in preempt_count_add+0x1b8/0x320 [ 283.531417][ T1013] preempt_count_add+0x1b8/0x320 [ 283.536714][ T1013] sysvec_reschedule_ipi+0x20/0x120 [ 283.542231][ T1013] asm_sysvec_reschedule_ipi+0x1f/0x30 [ 283.548190][ T1013] kmsan_get_metadata+0x22e/0x2c0 [ 283.553563][ T1013] kmsan_get_shadow_origin_ptr+0x38/0xa0 [ 283.559442][ T1013] __msan_metadata_ptr_for_load_4+0x24/0x40 [pid 5687] close(25) = -1 EBADF (Bad file descriptor) [pid 5687] close(26) = -1 EBADF (Bad file descriptor) [pid 5687] close(27) = -1 EBADF (Bad file descriptor) [pid 5687] close(28write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory ) = -1 EBADF (Bad file descriptor) [pid 5687] close(29) = -1 EBADF (Bad file descriptor) [pid 5687] write(1, "write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory\nwrite to /"..., 335) = 335 [pid 5687] exit_group(0) = ? [ 283.565581][ T1013] ip_fast_csum+0x2ce/0x5f0 [ 283.570423][ T1013] nsim_dev_trap_report_work+0x920/0x11f0 [ 283.576399][ T1013] process_one_work+0xe73/0x18d0 [ 283.581583][ T1013] worker_thread+0x10fc/0x2230 [ 283.586577][ T1013] kthread+0x3c7/0x500 [ 283.591024][ T1013] ret_from_fork+0x1f/0x30 [ 283.595659][ T1013] [ 283.598082][ T1013] Uninit was created at: [ 283.602569][ T1013] slab_post_alloc_hook+0x271/0xf70 [ 283.607961][ T1013] __kmem_cache_alloc_node+0x68c/0xac0 [pid 5687] +++ exited with 0 +++ [pid 5688] <... setpgid resumed>) = 0 [pid 5686] close(15 [ 283.613626][ T1013] __kmalloc_node_track_caller+0x3df/0x710 [ 283.619651][ T1013] __alloc_skb+0x56e/0xad0 [ 283.624316][ T1013] nsim_dev_trap_report_work+0x420/0x11f0 [ 283.630334][ T1013] process_one_work+0xe73/0x18d0 [ 283.635510][ T1013] worker_thread+0x10fc/0x2230 [ 283.640604][ T1013] kthread+0x3c7/0x500 [ 283.644879][ T1013] ret_from_fork+0x1f/0x30 [ 283.649506][ T1013] [ 283.652014][ T1013] CPU: 0 PID: 1013 Comm: kworker/0:2 Not tainted 6.2.0-rc7-syzkaller-80760-g8c89ecf5c13b #0 [pid 5685] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5684] +++ exited with 0 +++ [pid 5045] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [ 283.662277][ T1013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 283.672512][ T1013] Workqueue: events nsim_dev_trap_report_work [ 283.678911][ T1013] ===================================================== [ 283.685983][ T1013] Disabling lock debugging due to kernel taint [ 283.692266][ T1013] Kernel panic - not syncing: kmsan.panic set ... [ 283.698845][ T1013] CPU: 0 PID: 1013 Comm: kworker/0:2 Tainted: G B 6.2.0-rc7-syzkaller-80760-g8c89ecf5c13b #0 [ 283.710606][ T1013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 283.720940][ T1013] Workqueue: events nsim_dev_trap_report_work [ 283.727238][ T1013] Call Trace: [ 283.730624][ T1013] [ 283.733680][ T1013] dump_stack_lvl+0x200/0x290 [ 283.738597][ T1013] dump_stack+0x29/0x30 [ 283.742975][ T1013] panic+0x4fd/0xc70 [ 283.747109][ T1013] ? add_taint+0x185/0x210 [ 283.751726][ T1013] kmsan_report+0x2d0/0x2d0 [ 283.756495][ T1013] ? __msan_warning+0x96/0x110 [ 283.761492][ T1013] ? preempt_count_add+0x1b8/0x320 [ 283.766896][ T1013] ? sysvec_reschedule_ipi+0x20/0x120 [ 283.772517][ T1013] ? asm_sysvec_reschedule_ipi+0x1f/0x30 [ 283.778394][ T1013] ? kmsan_get_metadata+0x22e/0x2c0 [ 283.783819][ T1013] ? kmsan_get_shadow_origin_ptr+0x38/0xa0 [ 283.789886][ T1013] ? __msan_metadata_ptr_for_load_4+0x24/0x40 [ 283.796200][ T1013] ? ip_fast_csum+0x2ce/0x5f0 [ 283.801123][ T1013] ? nsim_dev_trap_report_work+0x920/0x11f0 [ 283.807234][ T1013] ? process_one_work+0xe73/0x18d0 [ 283.812599][ T1013] ? worker_thread+0x10fc/0x2230 [ 283.817783][ T1013] ? kthread+0x3c7/0x500 [ 283.822229][ T1013] ? ret_from_fork+0x1f/0x30 [ 283.827060][ T1013] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 283.833175][ T1013] ? kmsan_internal_memmove_metadata+0x9a/0x360 [ 283.839690][ T1013] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 283.846278][ T1013] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 283.852347][ T1013] __msan_warning+0x96/0x110 [ 283.857165][ T1013] preempt_count_add+0x1b8/0x320 [ 283.862365][ T1013] sysvec_reschedule_ipi+0x20/0x120 [ 283.867809][ T1013] asm_sysvec_reschedule_ipi+0x1f/0x30 [ 283.873526][ T1013] RIP: 0010:kmsan_get_metadata+0x22e/0x2c0 [ 283.879568][ T1013] Code: b9 00 00 00 80 7f 77 00 00 48 01 c1 48 c1 e9 0c 48 89 c8 48 c1 e0 04 48 8d 14 80 48 b8 00 00 00 00 00 16 00 00 48 39 c2 74 7a <48> ba 00 00 00 00 00 ea ff ff 48 8d 34 89 48 c1 e6 04 48 8b 4c 32 [ 283.899396][ T1013] RSP: 0018:ffff88810e087a50 EFLAGS: 00000283 [ 283.905654][ T1013] RAX: 0000160000000000 RBX: ffff88811af7b014 RCX: 000000000011af7b [ 283.913808][ T1013] RDX: 000000000586d670 RSI: 0000000000000230 RDI: ffffea000000000f [ 283.921953][ T1013] RBP: ffff88810e087a68 R08: ffffffff8695d667 R09: ffffffff8d5fa689 [ 283.930101][ T1013] R10: 0000000000000003 R11: ffff88810bef2080 R12: 0000000000000001 [ 283.938242][ T1013] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 283.946394][ T1013] ? in_aton+0x759/0x8d0 [ 283.950911][ T1013] ? ip_fast_csum+0x337/0x5f0 [ 283.955860][ T1013] kmsan_get_shadow_origin_ptr+0x38/0xa0 [ 283.961756][ T1013] __msan_metadata_ptr_for_load_4+0x24/0x40 [ 283.967904][ T1013] ip_fast_csum+0x2ce/0x5f0 [ 283.972670][ T1013] nsim_dev_trap_report_work+0x920/0x11f0 [ 283.978682][ T1013] ? nsim_dev_rate_parent_read+0x1c0/0x1c0 [ 283.984741][ T1013] process_one_work+0xe73/0x18d0 [ 283.989996][ T1013] worker_thread+0x10fc/0x2230 [ 283.995073][ T1013] kthread+0x3c7/0x500 [ 283.999360][ T1013] ? worker_clr_flags+0x3a0/0x3a0 [ 284.004637][ T1013] ? kthread_blkcg+0x120/0x120 [ 284.009615][ T1013] ret_from_fork+0x1f/0x30 [ 284.014256][ T1013] [ 284.017676][ T1013] Kernel Offset: disabled [ 284.022107][ T1013] Rebooting in 86400 seconds..