./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