./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor351627579 <...> mkdir("./file0", 0777) = 0 [pid 8868] set_robust_list(0x555556b565e0, 24 [pid 8865] <... ioctl resumed>) = 0 [pid 8868] <... set_robust_list resumed>) = 0 [pid 8865] close(3 [pid 8864] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8868] chdir("./216" [pid 8865] <... close resumed>) = 0 [pid 8868] <... chdir resumed>) = 0 [pid 8865] mkdir("./file0", 0777 [pid 8868] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8865] <... mkdir resumed>) = 0 [pid 8868] <... prctl resumed>) = 0 [ 229.163471][ T8864] loop1: detected capacity change from 0 to 8192 [ 229.171517][ T8865] loop2: detected capacity change from 0 to 8192 [ 229.181947][ T8864] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 229.196332][ T8864] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 229.205890][ T8867] loop0: detected capacity change from 0 to 8192 [pid 8865] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8868] setpgid(0, 0 [pid 8867] <... write resumed>) = 4194304 [pid 8867] munmap(0x7f38d9778000, 4194304) = 0 [pid 8867] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8867] ioctl(4, LOOP_SET_FD, 3 [pid 8868] <... setpgid resumed>) = 0 [pid 8867] <... ioctl resumed>) = 0 [pid 8867] close(3) = 0 [pid 8867] mkdir("./file0", 0777) = 0 [pid 8867] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8868] write(3, "1000", 4) = 4 [pid 8868] close(3) = 0 [pid 8868] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8868] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8868] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8868] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 8872 attached , parent_tid=[8872], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8872 [pid 8868] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8868] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8872] set_robust_list(0x7f38e1b989e0, 24) = 0 [ 229.206689][ T8864] REISERFS (device loop1): using ordered data mode [ 229.219418][ T8865] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 229.220635][ T8864] reiserfs: using flush barriers [ 229.232778][ T8865] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 229.246991][ T8867] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 8872] memfd_create("syzkaller", 0) = 3 [pid 8872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 229.247579][ T8865] REISERFS (device loop2): using ordered data mode [ 229.266520][ T8864] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 229.282969][ T8864] REISERFS (device loop1): checking transaction log (loop1) [ 229.290681][ T8867] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 229.300009][ T8867] REISERFS (device loop0): using ordered data mode [ 229.304281][ T8865] reiserfs: using flush barriers [pid 8872] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8864] <... mount resumed>) = 0 [ 229.311699][ T8864] REISERFS (device loop1): Using r5 hash to sort names [ 229.318752][ T8864] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 229.320677][ T8865] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 229.331442][ T8864] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 229.356686][ T8867] reiserfs: using flush barriers [pid 8864] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8864] chdir("./file0") = 0 [pid 8864] ioctl(4, LOOP_CLR_FD) = 0 [pid 8864] close(4) = 0 [ 229.357123][ T8865] REISERFS (device loop2): checking transaction log (loop2) [ 229.370193][ T8865] REISERFS (device loop2): Using r5 hash to sort names [ 229.377555][ T8865] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 229.386329][ T8867] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 8864] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8865] <... mount resumed>) = 0 [pid 8864] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8862] <... futex resumed>) = 0 [pid 8865] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8862] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8865] <... openat resumed>) = 3 [pid 8864] <... futex resumed>) = 0 [pid 8862] <... futex resumed>) = 1 [pid 8865] chdir("./file0" [pid 8864] mkdir("./file1", 000 [pid 8862] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8864] <... mkdir resumed>) = 0 [pid 8865] <... chdir resumed>) = 0 [pid 8864] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8865] ioctl(4, LOOP_CLR_FD [pid 8864] <... futex resumed>) = 1 [pid 8862] <... futex resumed>) = 0 [pid 8865] <... ioctl resumed>) = 0 [pid 8864] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8862] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8865] close(4 [pid 8864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8862] <... futex resumed>) = 0 [pid 8864] mkdir("./bus", 000 [pid 8865] <... close resumed>) = 0 [pid 8862] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8865] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8864] <... mkdir resumed>) = 0 [pid 8865] <... futex resumed>) = 1 [pid 8864] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8863] <... futex resumed>) = 0 [pid 8865] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8864] <... futex resumed>) = 1 [pid 8863] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8862] <... futex resumed>) = 0 [pid 8863] <... futex resumed>) = 0 [pid 8865] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8864] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8863] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8862] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8865] mkdir("./file1", 000 [pid 8864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8862] <... futex resumed>) = 0 [pid 8865] <... mkdir resumed>) = 0 [pid 8864] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 229.390511][ T8865] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 8862] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8865] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8872] <... write resumed>) = 4194304 [pid 8865] <... futex resumed>) = 1 [pid 8863] <... futex resumed>) = 0 [pid 8872] munmap(0x7f38d9778000, 4194304 [pid 8865] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8863] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8865] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8863] <... futex resumed>) = 0 [pid 8865] mkdir("./bus", 000 [pid 8863] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8865] <... mkdir resumed>) = 0 [pid 8865] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8863] <... futex resumed>) = 0 [pid 8865] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8863] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8865] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8863] <... futex resumed>) = 0 [pid 8865] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 229.435923][ T8864] overlayfs: upper fs needs to support d_type. [ 229.440629][ T8867] REISERFS (device loop0): checking transaction log (loop0) [ 229.442700][ T8864] overlayfs: upper fs does not support tmpfile. [ 229.451468][ T8867] REISERFS (device loop0): Using r5 hash to sort names [ 229.465586][ T8867] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 229.465864][ T8865] overlayfs: upper fs needs to support d_type. [pid 8863] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8872] <... munmap resumed>) = 0 [pid 8867] <... mount resumed>) = 0 [pid 8867] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8867] chdir("./file0") = 0 [pid 8867] ioctl(4, LOOP_CLR_FD) = 0 [pid 8867] close(4 [pid 8872] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 8862] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8867] <... close resumed>) = 0 [pid 8867] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8872] <... openat resumed>) = 4 [pid 8866] <... futex resumed>) = 0 [pid 8862] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8872] ioctl(4, LOOP_SET_FD, 3 [pid 8866] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8862] <... futex resumed>) = 0 [pid 8867] mkdir("./file1", 000) = 0 [pid 8867] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8867] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8866] <... futex resumed>) = 1 [pid 8863] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8862] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8866] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8863] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8867] <... futex resumed>) = 0 [pid 8866] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8863] <... futex resumed>) = 0 [pid 8862] <... mmap resumed>) = 0x7f38d9b57000 [pid 8866] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8862] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8866] <... futex resumed>) = 0 [pid 8867] mkdir("./bus", 000 [pid 8866] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8863] <... mmap resumed>) = 0x7f38d9b57000 [pid 8862] <... mprotect resumed>) = 0 [pid 8863] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8862] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8867] <... mkdir resumed>) = 0 [pid 8863] <... mprotect resumed>) = 0 [pid 8867] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8863] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8862] <... clone resumed>, parent_tid=[8873], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8873 [pid 8867] <... futex resumed>) = 1 [pid 8872] <... ioctl resumed>) = 0 [pid 8866] <... futex resumed>) = 0 [pid 8862] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8866] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8863] <... clone resumed>, parent_tid=[8874], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8874 [pid 8862] <... futex resumed>) = 0 [pid 8872] close(3 [ 229.479353][ T8867] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 229.485349][ T8864] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 229.503458][ T8865] overlayfs: upper fs does not support tmpfile. [ 229.511503][ T8872] loop5: detected capacity change from 0 to 8192 [ 229.515818][ T8865] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 229.529436][ T8864] overlayfs: failed to resolve './file0': -2 [pid 8867] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,"./strace-static-x86_64: Process 8874 attached ./strace-static-x86_64: Process 8873 attached [pid 8872] <... close resumed>) = 0 [pid 8866] <... futex resumed>) = 0 [pid 8863] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8862] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8863] <... futex resumed>) = 0 [pid 8863] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8866] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8872] mkdir("./file0", 0777) = 0 [pid 8872] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8874] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8874] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8874] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8873] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8873] mkdir(".", 0777) = -1 EEXIST (File exists) [ 229.532283][ T8865] overlayfs: failed to resolve './file0': -2 [ 229.542011][ T8867] overlayfs: upper fs needs to support d_type. [ 229.548839][ T8867] overlayfs: upper fs does not support tmpfile. [ 229.555739][ T8867] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 229.556188][ T8872] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 229.563742][ T8867] overlayfs: failed to resolve './file0': -2 [pid 8873] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8874] <... mount resumed>) = 0 [pid 8874] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8874] chdir("." [pid 8873] <... mount resumed>) = 0 [pid 8874] <... chdir resumed>) = 0 [pid 8873] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8874] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8873] <... openat resumed>) = 4 [pid 8874] <... futex resumed>) = 1 [pid 8873] chdir("." [pid 8863] <... futex resumed>) = 0 [pid 8874] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8873] <... chdir resumed>) = 0 [pid 8873] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8862] <... futex resumed>) = 0 [pid 8873] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8867] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8865] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8864] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8866] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8864] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8862] exit_group(0 [pid 8873] <... futex resumed>) = ? [pid 8866] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8864] <... futex resumed>) = ? [pid 8862] <... exit_group resumed>) = ? [pid 8873] +++ exited with 0 +++ [pid 8867] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8866] <... futex resumed>) = 0 [pid 8865] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8864] +++ exited with 0 +++ [pid 8863] exit_group(0 [pid 8862] +++ exited with 0 +++ [pid 8874] <... futex resumed>) = ? [pid 8867] <... futex resumed>) = 0 [pid 8866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8865] <... futex resumed>) = ? [pid 8863] <... exit_group resumed>) = ? [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8862, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 8874] +++ exited with 0 +++ [pid 8867] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8866] <... mmap resumed>) = 0x7f38d9b57000 [pid 8865] +++ exited with 0 +++ [pid 8866] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8863] +++ exited with 0 +++ [pid 8866] <... mprotect resumed>) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8863, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 8866] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 8866] <... clone resumed>, parent_tid=[8876], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8876 [pid 8866] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5000] umount2("./216", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./216", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8866] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./216", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] openat(AT_FDCWD, "./216", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 3 [pid 5000] fstat(3, [pid 4999] fstat(3, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 4999] getdents64(3, [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./216/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./216/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./216/binderfs", [pid 4999] lstat("./216/binderfs", [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 8876 attached [pid 5000] unlink("./216/binderfs" [pid 4999] unlink("./216/binderfs" [pid 5000] <... unlink resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 5000] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8876] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8876] mkdir(".", 0777) = -1 EEXIST (File exists) [ 229.582371][ T8872] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 229.592006][ T8872] REISERFS (device loop5): using ordered data mode [ 229.598589][ T8872] reiserfs: using flush barriers [ 229.604556][ T8872] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 229.621056][ T8872] REISERFS (device loop5): checking transaction log (loop5) [pid 8876] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 8876] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8876] chdir(".") = 0 [pid 8876] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8866] <... futex resumed>) = 0 [pid 8876] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8866] exit_group(0) = ? [pid 8867] <... futex resumed>) = ? [pid 8876] <... futex resumed>) = ? [pid 8867] +++ exited with 0 +++ [pid 8876] +++ exited with 0 +++ [pid 8866] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8866, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4998] umount2("./217", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./217", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./217/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./217/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./217/binderfs") = 0 [pid 4998] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8872] <... mount resumed>) = 0 [pid 8872] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8872] chdir("./file0") = 0 [pid 8872] ioctl(4, LOOP_CLR_FD) = 0 [pid 8872] close(4) = 0 [pid 8872] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8868] <... futex resumed>) = 0 [pid 8872] mkdir("./file1", 000 [pid 8868] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8872] <... mkdir resumed>) = 0 [pid 8868] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8872] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8868] <... futex resumed>) = 0 [pid 8872] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8868] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8868] <... futex resumed>) = 0 [pid 8872] mkdir("./bus", 000 [pid 8868] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8872] <... mkdir resumed>) = 0 [pid 8872] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8868] <... futex resumed>) = 0 [pid 8872] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8868] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8868] <... futex resumed>) = 0 [pid 8872] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 229.631729][ T8872] REISERFS (device loop5): Using r5 hash to sort names [ 229.640273][ T8872] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 229.653377][ T8872] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 8868] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... umount2 resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 4999] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./216/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./216/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] lstat("./216/file0", [pid 4999] getdents64(4, [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(4, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] openat(AT_FDCWD, "./216/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] close(4) = 0 [pid 4999] rmdir("./216/file0") = 0 [pid 5000] <... openat resumed>) = 4 [pid 5000] fstat(4, [pid 4999] getdents64(3, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 5000] getdents64(4, [pid 4999] close(3 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] <... close resumed>) = 0 [pid 5000] getdents64(4, [pid 4999] rmdir("./216" [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5000] close(4 [pid 4999] mkdir("./217", 0777 [pid 5000] <... close resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 5000] rmdir("./216/file0" [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5000] <... rmdir resumed>) = 0 [pid 4998] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 3 [pid 8868] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./217/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8868] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] getdents64(3, [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 8868] <... futex resumed>) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] openat(AT_FDCWD, "./217/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] close(3 [pid 4999] close(3 [pid 8868] <... mmap resumed>) = 0x7f38d9b57000 [pid 4999] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8868] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [ 229.697303][ T8872] overlayfs: upper fs needs to support d_type. [ 229.703497][ T8872] overlayfs: upper fs does not support tmpfile. [ 229.735555][ T8872] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5000] rmdir("./216" [pid 8868] <... mprotect resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... openat resumed>) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./217/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./217") = 0 [pid 4998] mkdir("./218", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8877 attached [pid 8868] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] mkdir("./217", 0777 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 8877 [pid 8877] set_robust_list(0x555556b565e0, 24 [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 8878 ./strace-static-x86_64: Process 8879 attached [pid 8868] <... clone resumed>, parent_tid=[8879], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8879 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8877] <... set_robust_list resumed>) = 0 [pid 8879] set_robust_list(0x7f38d9b779e0, 24 [pid 8868] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... openat resumed>) = 3 [pid 8877] chdir("./217") = 0 [pid 8877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8877] setpgid(0, 0) = 0 [pid 8877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 8878 attached [pid 8879] <... set_robust_list resumed>) = 0 [pid 8877] write(3, "1000", 4 [pid 8872] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8868] <... futex resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 8879] mkdir(".", 0777 [pid 8878] set_robust_list(0x555556b565e0, 24 [pid 8877] <... write resumed>) = 4 [pid 8872] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8868] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8879] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8878] <... set_robust_list resumed>) = 0 [pid 8877] close(3 [pid 8872] <... futex resumed>) = 0 [pid 8879] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8877] <... close resumed>) = 0 [pid 8872] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] close(3 [pid 8878] chdir("./218" [pid 8877] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5000] <... close resumed>) = 0 [pid 8877] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8877] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8877] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8877] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8880], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8880 ./strace-static-x86_64: Process 8881 attached ./strace-static-x86_64: Process 8880 attached [pid 8879] <... mount resumed>) = 0 [pid 8878] <... chdir resumed>) = 0 [pid 8877] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8881] set_robust_list(0x555556b565e0, 24 [pid 8880] set_robust_list(0x7f38e1b989e0, 24 [pid 8879] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8878] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8877] <... futex resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 8881 [pid 8881] <... set_robust_list resumed>) = 0 [pid 8880] <... set_robust_list resumed>) = 0 [pid 8879] <... openat resumed>) = 4 [pid 8878] <... prctl resumed>) = 0 [pid 8877] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8881] chdir("./217" [pid 8880] memfd_create("syzkaller", 0 [pid 8879] chdir("." [pid 8878] setpgid(0, 0 [pid 8881] <... chdir resumed>) = 0 [pid 8880] <... memfd_create resumed>) = 3 [pid 8879] <... chdir resumed>) = 0 [pid 8878] <... setpgid resumed>) = 0 [pid 8881] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8879] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8881] <... prctl resumed>) = 0 [pid 8879] <... futex resumed>) = 1 [pid 8868] <... futex resumed>) = 0 [pid 8878] <... openat resumed>) = 3 [pid 8868] exit_group(0 [pid 8879] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8881] setpgid(0, 0 [pid 8878] write(3, "1000", 4 [pid 8881] <... setpgid resumed>) = 0 [pid 8879] <... futex resumed>) = ? [pid 8878] <... write resumed>) = 4 [pid 8872] <... futex resumed>) = ? [pid 8868] <... exit_group resumed>) = ? [pid 8881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8872] +++ exited with 0 +++ [pid 8879] +++ exited with 0 +++ [pid 8880] <... mmap resumed>) = 0x7f38d9778000 [pid 8881] <... openat resumed>) = 3 [pid 8878] close(3 [pid 8868] +++ exited with 0 +++ [pid 8881] write(3, "1000", 4 [pid 8878] <... close resumed>) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8868, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 8881] <... write resumed>) = 4 [pid 8878] symlink("/dev/binderfs", "./binderfs" [pid 8881] close(3 [pid 8878] <... symlink resumed>) = 0 [pid 8881] <... close resumed>) = 0 [pid 8878] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./216", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8881] symlink("/dev/binderfs", "./binderfs" [pid 8878] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8881] <... symlink resumed>) = 0 [pid 8878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] openat(AT_FDCWD, "./216", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8881] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8878] <... mmap resumed>) = 0x7f38e1b78000 [pid 5003] <... openat resumed>) = 3 [pid 8881] <... futex resumed>) = 0 [pid 8878] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] fstat(3, [pid 8881] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8878] <... mprotect resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8881] <... mmap resumed>) = 0x7f38e1b78000 [pid 8878] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5003] getdents64(3, [pid 8881] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 8881] <... mprotect resumed>) = 0 [pid 8878] <... clone resumed>, parent_tid=[8882], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8882 [pid 5003] umount2("./216/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8881] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8878] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8878] <... futex resumed>) = 0 [pid 5003] lstat("./216/binderfs", [pid 8881] <... clone resumed>, parent_tid=[8883], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8883 [pid 8878] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 8881] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] unlink("./216/binderfs" [pid 8881] <... futex resumed>) = 0 [pid 5003] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 8882 attached [pid 8881] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8882] set_robust_list(0x7f38e1b989e0, 24./strace-static-x86_64: Process 8883 attached [pid 8883] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8883] memfd_create("syzkaller", 0) = 3 [ 229.752771][ T8872] overlayfs: failed to resolve './file0': -2 [pid 8883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8882] <... set_robust_list resumed>) = 0 [pid 8882] memfd_create("syzkaller", 0) = 3 [pid 8882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8883] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8880] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./216/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./216/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./216/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./216") = 0 [pid 5003] mkdir("./217", 0777) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5003] close(3) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8884 [pid 8883] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 8884 attached [pid 8884] set_robust_list(0x555556b565e0, 24) = 0 [pid 8884] chdir("./217") = 0 [pid 8884] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8883] munmap(0x7f38d9778000, 4194304 [pid 8884] <... prctl resumed>) = 0 [pid 8884] setpgid(0, 0) = 0 [pid 8884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8884] write(3, "1000", 4) = 4 [pid 8884] close(3) = 0 [pid 8880] <... write resumed>) = 4194304 [pid 8884] symlink("/dev/binderfs", "./binderfs" [pid 8883] <... munmap resumed>) = 0 [pid 8880] munmap(0x7f38d9778000, 4194304 [pid 8884] <... symlink resumed>) = 0 [pid 8884] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8884] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8884] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8883] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 8885 attached [pid 8884] <... clone resumed>, parent_tid=[8885], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8885 [pid 8884] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8883] <... openat resumed>) = 4 [pid 8884] <... futex resumed>) = 0 [pid 8883] ioctl(4, LOOP_SET_FD, 3 [pid 8884] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8885] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8885] memfd_create("syzkaller", 0) = 3 [pid 8885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8880] <... munmap resumed>) = 0 [pid 8880] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8883] <... ioctl resumed>) = 0 [pid 8882] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8880] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8883] close(3) = 0 [pid 8883] mkdir("./file0", 0777) = 0 [pid 8880] close(3) = 0 [pid 8880] mkdir("./file0", 0777) = 0 [pid 8883] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 229.916815][ T8883] loop2: detected capacity change from 0 to 8192 [ 229.927276][ T8880] loop1: detected capacity change from 0 to 8192 [ 229.948011][ T8880] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 8880] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8882] <... write resumed>) = 4194304 [pid 8882] munmap(0x7f38d9778000, 4194304) = 0 [pid 8885] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8882] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8882] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8882] close(3) = 0 [ 229.951009][ T8883] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 229.970600][ T8880] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 229.984857][ T8880] REISERFS (device loop1): using ordered data mode [ 229.991771][ T8880] reiserfs: using flush barriers [ 229.997113][ T8882] loop0: detected capacity change from 0 to 8192 [ 230.004390][ T8883] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 8882] mkdir("./file0", 0777) = 0 [pid 8882] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8885] <... write resumed>) = 4194304 [pid 8885] munmap(0x7f38d9778000, 4194304) = 0 [pid 8885] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 230.013994][ T8880] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 230.014850][ T8883] REISERFS (device loop2): using ordered data mode [ 230.036666][ T8883] reiserfs: using flush barriers [ 230.042920][ T8883] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 230.059457][ T8883] REISERFS (device loop2): checking transaction log (loop2) [pid 8885] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8885] close(3) = 0 [pid 8885] mkdir("./file0", 0777) = 0 [ 230.067485][ T8885] loop5: detected capacity change from 0 to 8192 [ 230.067887][ T8883] REISERFS (device loop2): Using r5 hash to sort names [ 230.073865][ T8882] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 230.080960][ T8883] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 230.097245][ T8880] REISERFS (device loop1): checking transaction log (loop1) [pid 8885] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8883] <... mount resumed>) = 0 [pid 8883] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8883] chdir("./file0") = 0 [pid 8883] ioctl(4, LOOP_CLR_FD) = 0 [pid 8883] close(4) = 0 [pid 8883] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8881] <... futex resumed>) = 0 [pid 8883] mkdir("./file1", 000 [pid 8881] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8883] <... mkdir resumed>) = 0 [pid 8881] <... futex resumed>) = 0 [pid 8883] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8881] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8883] <... futex resumed>) = 0 [pid 8881] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8883] mkdir("./bus", 000 [pid 8881] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8883] <... mkdir resumed>) = 0 [pid 8881] <... futex resumed>) = 0 [pid 8883] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8881] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8883] <... futex resumed>) = 0 [pid 8881] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8883] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8881] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 230.107651][ T8883] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 230.115253][ T8885] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 230.123475][ T8882] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 230.136678][ T8880] REISERFS (device loop1): Using r5 hash to sort names [ 230.152005][ T8882] REISERFS (device loop0): using ordered data mode [ 230.152017][ T8882] reiserfs: using flush barriers [ 230.161960][ T8883] overlayfs: upper fs needs to support d_type. [ 230.164016][ T8885] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 230.170535][ T8883] overlayfs: upper fs does not support tmpfile. [ 230.179562][ T8880] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 230.186539][ T8883] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 8881] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 8881] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8881] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8881] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8883] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8883] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8883] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8880] <... mount resumed>) = 0 [pid 8880] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8880] chdir("./file0") = 0 [pid 8880] ioctl(4, LOOP_CLR_FD) = 0 [pid 8880] close(4) = 0 [pid 8880] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8877] <... futex resumed>) = 0 [pid 8877] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8877] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8880] <... futex resumed>) = 1 [pid 8880] mkdir("./file1", 000) = 0 [pid 8880] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8877] <... futex resumed>) = 0 [pid 8877] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8877] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8880] <... futex resumed>) = 1 [pid 8880] mkdir("./bus", 000) = 0 [pid 8880] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8877] <... futex resumed>) = 0 [pid 8877] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8877] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8880] <... futex resumed>) = 1 [ 230.199040][ T8882] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 230.206354][ T8883] overlayfs: failed to resolve './file0': -2 [ 230.228673][ T8885] REISERFS (device loop5): using ordered data mode [ 230.235725][ T8885] reiserfs: using flush barriers [ 230.236422][ T8880] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 230.242028][ T8885] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 8880] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8881] <... mprotect resumed>) = 0 [pid 8881] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 8890 attached , parent_tid=[8890], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8890 [pid 8890] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8890] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8877] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8877] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 8877] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8877] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8877] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8877] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8891], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8891 [pid 8877] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8877] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8881] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8890] <... futex resumed>) = 0 [pid 8881] <... futex resumed>) = 1 [pid 8890] mkdir(".", 0777 [pid 8881] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8890] <... mkdir resumed>) = -1 EEXIST (File exists) [ 230.260500][ T8882] REISERFS (device loop0): checking transaction log (loop0) [ 230.274231][ T8880] overlayfs: upper fs needs to support d_type. [ 230.280948][ T8880] overlayfs: upper fs does not support tmpfile. [ 230.288375][ T8880] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 230.290191][ T8885] REISERFS (device loop5): checking transaction log (loop5) [ 230.296386][ T8880] overlayfs: failed to resolve './file0': -2 [ 230.303796][ T8885] REISERFS (device loop5): Using r5 hash to sort names [pid 8890] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, ""./strace-static-x86_64: Process 8891 attached [pid 8891] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8891] mkdir(".", 0777 [pid 8885] <... mount resumed>) = 0 [pid 8882] <... mount resumed>) = 0 [pid 8880] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8891] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8880] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8891] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8880] <... futex resumed>) = 0 [pid 8885] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8890] <... mount resumed>) = 0 [pid 8885] <... openat resumed>) = 3 [pid 8880] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8891] <... mount resumed>) = 0 [pid 8890] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8882] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8891] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8891] chdir(".") = 0 [pid 8891] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8877] <... futex resumed>) = 0 [pid 8877] exit_group(0) = ? [pid 8891] <... futex resumed>) = ? [pid 8891] +++ exited with 0 +++ [pid 8885] chdir("./file0") = 0 [pid 8885] ioctl(4, LOOP_CLR_FD) = 0 [pid 8882] <... openat resumed>) = 3 [pid 8885] close(4 [pid 8890] <... openat resumed>) = 4 [pid 8885] <... close resumed>) = 0 [pid 8882] chdir("./file0" [pid 8880] <... futex resumed>) = ? [pid 8890] chdir("." [pid 8880] +++ exited with 0 +++ [pid 8877] +++ exited with 0 +++ [pid 8890] <... chdir resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8877, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 8890] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8881] <... futex resumed>) = 0 [pid 8890] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8881] exit_group(0 [pid 8890] <... futex resumed>) = ? [pid 8883] <... futex resumed>) = ? [pid 8881] <... exit_group resumed>) = ? [pid 8890] +++ exited with 0 +++ [pid 8883] +++ exited with 0 +++ [pid 8881] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8881, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 4999] umount2("./217", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./217", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./217", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(3, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] openat(AT_FDCWD, "./217", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] umount2("./217/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8885] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8882] <... chdir resumed>) = 0 [pid 5000] fstat(3, [pid 4999] lstat("./217/binderfs", [pid 8885] <... futex resumed>) = 1 [pid 8884] <... futex resumed>) = 0 [pid 8882] ioctl(4, LOOP_CLR_FD [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 8885] mkdir("./file1", 000 [ 230.315547][ T8882] REISERFS (device loop0): Using r5 hash to sort names [ 230.315666][ T8885] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 230.333430][ T8882] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 230.335690][ T8885] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 230.350218][ T8882] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 8884] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8882] <... ioctl resumed>) = 0 [pid 5000] getdents64(3, [pid 4999] unlink("./217/binderfs" [pid 8885] <... mkdir resumed>) = 0 [pid 8884] <... futex resumed>) = 0 [pid 8882] close(4 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... unlink resumed>) = 0 [pid 8885] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8884] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8882] <... close resumed>) = 0 [pid 5000] umount2("./217/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8885] <... futex resumed>) = 0 [pid 8884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8882] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8885] mkdir("./bus", 000 [pid 8884] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8882] <... futex resumed>) = 1 [pid 5000] lstat("./217/binderfs", [pid 8885] <... mkdir resumed>) = 0 [pid 8884] <... futex resumed>) = 0 [pid 8882] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8878] <... futex resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 8885] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8884] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8878] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] unlink("./217/binderfs" [pid 8885] <... futex resumed>) = 0 [pid 8884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8882] <... futex resumed>) = 0 [pid 8878] <... futex resumed>) = 1 [pid 5000] <... unlink resumed>) = 0 [pid 8885] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8884] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8882] mkdir("./file1", 000 [pid 8878] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8884] <... futex resumed>) = 0 [pid 8882] <... mkdir resumed>) = 0 [pid 8885] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8884] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8882] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8882] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8878] <... futex resumed>) = 0 [pid 8878] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8882] <... futex resumed>) = 0 [pid 8878] <... futex resumed>) = 1 [pid 8882] mkdir("./bus", 000 [pid 8878] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8882] <... mkdir resumed>) = 0 [pid 8882] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8878] <... futex resumed>) = 0 [pid 8878] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8882] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8878] <... futex resumed>) = 0 [ 230.411274][ T8885] overlayfs: upper fs needs to support d_type. [ 230.418635][ T8885] overlayfs: upper fs does not support tmpfile. [ 230.427114][ T8885] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 230.438140][ T8882] overlayfs: upper fs needs to support d_type. [ 230.444340][ T8882] overlayfs: upper fs does not support tmpfile. [ 230.452925][ T8885] overlayfs: failed to resolve './file0': -2 [pid 8878] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8884] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8884] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8884] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8884] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8892], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8892 [pid 8884] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8884] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8892 attached [pid 8892] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8892] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8892] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 8892] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] <... umount2 resumed>) = 0 [pid 8892] <... openat resumed>) = 4 [pid 8892] chdir("." [pid 4999] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8892] <... chdir resumed>) = 0 [pid 8892] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8892] <... futex resumed>) = 1 [pid 8892] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8884] <... futex resumed>) = 0 [pid 4999] lstat("./217/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./217/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(4, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./217/file0", [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 5000] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8878] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] close(4 [pid 8878] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] openat(AT_FDCWD, "./217/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... close resumed>) = 0 [pid 8878] <... futex resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 4999] rmdir("./217/file0" [pid 8878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] fstat(4, [pid 8878] <... mmap resumed>) = 0x7f38d9b57000 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 8878] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5000] getdents64(4, [pid 4999] getdents64(3, [pid 8878] <... mprotect resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 8878] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] getdents64(4, [pid 4999] close(3 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] <... close resumed>) = 0 [pid 8878] <... clone resumed>, parent_tid=[8893], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8893 [pid 5000] close(4 [pid 4999] rmdir("./217" [pid 8878] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... close resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 8878] <... futex resumed>) = 0 [pid 5000] rmdir("./217/file0" [pid 4999] mkdir("./218", 0777 [pid 8878] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 4999] <... mkdir resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5000] close(3 [pid 4999] <... openat resumed>) = 3 ./strace-static-x86_64: Process 8893 attached [pid 5000] <... close resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5000] rmdir("./217" [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8893] set_robust_list(0x7f38d9b779e0, 24 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] close(3 [pid 8893] <... set_robust_list resumed>) = 0 [pid 5000] mkdir("./218", 0777 [pid 4999] <... close resumed>) = 0 [pid 8893] mkdir(".", 0777) = -1 EEXIST (File exists) [ 230.460041][ T8882] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 230.476556][ T8882] overlayfs: failed to resolve './file0': -2 [pid 8893] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 8885] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8882] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8885] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8884] exit_group(0 [pid 8882] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... mkdir resumed>) = 0 [pid 8892] <... futex resumed>) = ? [pid 8885] <... futex resumed>) = ? [pid 8884] <... exit_group resumed>) = ? [pid 8882] <... futex resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 8894 attached [pid 8893] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8892] +++ exited with 0 +++ [pid 8885] +++ exited with 0 +++ [pid 8884] +++ exited with 0 +++ [pid 8882] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] <... openat resumed>) = 3 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 8894 [pid 8894] set_robust_list(0x555556b565e0, 24 [pid 8893] <... openat resumed>) = 4 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8884, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5000] ioctl(3, LOOP_CLR_FD [pid 8893] chdir("." [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8894] <... set_robust_list resumed>) = 0 [pid 8893] <... chdir resumed>) = 0 [pid 5000] close(3 [pid 8893] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] umount2("./217", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 8895 [pid 8878] <... futex resumed>) = 0 [pid 8893] <... futex resumed>) = 1 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8893] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8878] exit_group(0 [pid 5003] openat(AT_FDCWD, "./217", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8893] <... futex resumed>) = ? [pid 8882] <... futex resumed>) = ? [pid 8878] <... exit_group resumed>) = ? [pid 5003] <... openat resumed>) = 3 [pid 5003] fstat(3, [pid 8882] +++ exited with 0 +++ [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./217/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8893] +++ exited with 0 +++ [pid 8878] +++ exited with 0 +++ [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./217/binderfs", [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8878, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 8894] chdir("./218" [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 8894] <... chdir resumed>) = 0 [pid 5003] unlink("./217/binderfs" [pid 8894] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] <... unlink resumed>) = 0 [pid 4998] umount2("./218", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 8895 attached [pid 8894] <... prctl resumed>) = 0 [pid 5003] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8894] setpgid(0, 0 [pid 4998] openat(AT_FDCWD, "./218", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8894] <... setpgid resumed>) = 0 [pid 8894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] <... openat resumed>) = 3 [pid 8894] <... openat resumed>) = 3 [pid 4998] fstat(3, [pid 8894] write(3, "1000", 4) = 4 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8894] close(3) = 0 [pid 4998] getdents64(3, [pid 8894] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 8894] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4998] umount2("./218/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8894] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8894] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8894] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8896], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8896 [pid 8894] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8894] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8895] set_robust_list(0x555556b565e0, 24) = 0 [pid 8895] chdir("./218") = 0 [pid 8895] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 8896 attached [pid 4998] lstat("./218/binderfs", [pid 8895] <... prctl resumed>) = 0 [pid 8895] setpgid(0, 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 8895] <... setpgid resumed>) = 0 [pid 4998] unlink("./218/binderfs" [pid 8895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] <... unlink resumed>) = 0 [pid 8895] write(3, "1000", 4 [pid 4998] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8895] <... write resumed>) = 4 [pid 8895] close(3) = 0 [pid 8895] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8895] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8895] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8895] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8895] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8897], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8897 [pid 8895] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8895] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8897 attached [pid 8897] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8897] memfd_create("syzkaller", 0) = 3 [pid 8897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8896] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8896] memfd_create("syzkaller", 0) = 3 [pid 8896] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8897] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./217/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./217/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./217/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./217") = 0 [pid 5003] mkdir("./218", 0777) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5003] close(3 [pid 8897] <... write resumed>) = 4194304 [pid 8896] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5003] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 8897] munmap(0x7f38d9778000, 4194304) = 0 [pid 8897] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8897] ioctl(4, LOOP_SET_FD, 3 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8897] <... ioctl resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 8898 [pid 4998] lstat("./218/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./218/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, [pid 8897] close(3 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./218/file0" [pid 8897] <... close resumed>) = 0 [pid 8897] mkdir("./file0", 0777 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 ./strace-static-x86_64: Process 8898 attached [pid 4998] rmdir("./218") = 0 [pid 8898] set_robust_list(0x555556b565e0, 24 [pid 4998] mkdir("./219", 0777) = 0 [pid 8898] <... set_robust_list resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 8898] chdir("./218" [pid 4998] ioctl(3, LOOP_CLR_FD [pid 8898] <... chdir resumed>) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8898] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4998] close(3 [pid 8898] <... prctl resumed>) = 0 [pid 8897] <... mkdir resumed>) = 0 [pid 8896] <... write resumed>) = 4194304 [pid 4998] <... close resumed>) = 0 [pid 8898] setpgid(0, 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8898] <... setpgid resumed>) = 0 [pid 8898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 8899 [pid 8898] <... openat resumed>) = 3 [pid 8898] write(3, "1000", 4) = 4 [pid 8898] close(3) = 0 [pid 8898] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8898] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8898] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8898] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8897] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8896] munmap(0x7f38d9778000, 4194304./strace-static-x86_64: Process 8899 attached [pid 8898] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8896] <... munmap resumed>) = 0 [pid 8898] <... clone resumed>, parent_tid=[8901], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8901 [pid 8899] set_robust_list(0x555556b565e0, 24 [pid 8898] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8898] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8901 attached [pid 8899] <... set_robust_list resumed>) = 0 [pid 8896] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8899] chdir("./219") = 0 [pid 8901] set_robust_list(0x7f38e1b989e0, 24 [pid 8899] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8896] <... openat resumed>) = 4 [pid 8901] <... set_robust_list resumed>) = 0 [pid 8899] <... prctl resumed>) = 0 [pid 8896] ioctl(4, LOOP_SET_FD, 3 [pid 8901] memfd_create("syzkaller", 0 [ 230.652968][ T8897] loop2: detected capacity change from 0 to 8192 [ 230.686778][ T8897] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 8899] setpgid(0, 0 [pid 8901] <... memfd_create resumed>) = 3 [pid 8899] <... setpgid resumed>) = 0 [pid 8901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8901] <... mmap resumed>) = 0x7f38d9778000 [pid 8899] <... openat resumed>) = 3 [pid 8899] write(3, "1000", 4) = 4 [pid 8899] close(3) = 0 [pid 8899] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8899] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8899] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8899] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8902], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8902 [pid 8899] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8899] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8902 attached [pid 8902] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8902] memfd_create("syzkaller", 0) = 3 [pid 8902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8896] <... ioctl resumed>) = 0 [ 230.687844][ T8896] loop1: detected capacity change from 0 to 8192 [ 230.700341][ T8897] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 230.715678][ T8897] REISERFS (device loop2): using ordered data mode [ 230.722997][ T8897] reiserfs: using flush barriers [ 230.729281][ T8897] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 230.746091][ T8897] REISERFS (device loop2): checking transaction log (loop2) [pid 8896] close(3) = 0 [pid 8896] mkdir("./file0", 0777) = 0 [pid 8896] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 230.755460][ T8897] REISERFS (device loop2): Using r5 hash to sort names [ 230.769892][ T8897] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 230.769944][ T8896] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 8901] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 8902] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8901] munmap(0x7f38d9778000, 4194304) = 0 [pid 8901] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 8897] <... mount resumed>) = 0 [pid 8897] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8897] chdir("./file0") = 0 [pid 8897] ioctl(4, LOOP_CLR_FD) = 0 [pid 8897] close(4) = 0 [pid 8897] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8897] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8901] <... openat resumed>) = 4 [pid 8895] <... futex resumed>) = 0 [pid 8901] ioctl(4, LOOP_SET_FD, 3 [ 230.798934][ T8896] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 230.808535][ T8896] REISERFS (device loop1): using ordered data mode [ 230.816663][ T8896] reiserfs: using flush barriers [ 230.820416][ T8897] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 230.822585][ T8896] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 8895] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8897] <... futex resumed>) = 0 [pid 8895] <... futex resumed>) = 1 [pid 8897] mkdir("./file1", 000) = 0 [pid 8897] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8897] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8902] <... write resumed>) = 4194304 [pid 8902] munmap(0x7f38d9778000, 4194304) = 0 [pid 8902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8902] ioctl(4, LOOP_SET_FD, 3 [pid 8901] <... ioctl resumed>) = 0 [pid 8895] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 8895] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8901] close(3 [pid 8897] <... futex resumed>) = 0 [pid 8895] <... futex resumed>) = 1 [pid 8901] <... close resumed>) = 0 [pid 8897] mkdir("./bus", 000 [pid 8895] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8901] mkdir("./file0", 0777 [pid 8897] <... mkdir resumed>) = 0 [pid 8897] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8895] <... futex resumed>) = 0 [pid 8897] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8902] <... ioctl resumed>) = 0 [pid 8902] close(3 [pid 8895] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8902] <... close resumed>) = 0 [pid 8902] mkdir("./file0", 0777 [pid 8897] <... futex resumed>) = 0 [pid 8895] <... futex resumed>) = 1 [pid 8897] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8895] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8901] <... mkdir resumed>) = 0 [pid 8902] <... mkdir resumed>) = 0 [ 230.858003][ T8901] loop5: detected capacity change from 0 to 8192 [ 230.865268][ T8902] loop0: detected capacity change from 0 to 8192 [ 230.877710][ T8897] overlayfs: upper fs needs to support d_type. [ 230.880154][ T8896] REISERFS (device loop1): checking transaction log (loop1) [ 230.883904][ T8897] overlayfs: upper fs does not support tmpfile. [ 230.892030][ T8896] REISERFS (device loop1): Using r5 hash to sort names [pid 8902] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 230.901373][ T8897] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 230.905324][ T8896] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 230.914030][ T8897] overlayfs: failed to resolve './file0': -2 [ 230.926022][ T8901] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 230.930921][ T8896] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 8901] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8895] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8896] <... mount resumed>) = 0 [pid 8896] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8896] chdir("./file0") = 0 [pid 8896] ioctl(4, LOOP_CLR_FD) = 0 [pid 8896] close(4) = 0 [pid 8896] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8896] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8897] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8895] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8894] <... futex resumed>) = 0 [pid 8897] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8894] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8895] <... futex resumed>) = 0 [pid 8896] <... futex resumed>) = 0 [pid 8894] <... futex resumed>) = 1 [pid 8897] <... futex resumed>) = 0 [pid 8896] mkdir("./file1", 000 [pid 8895] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8894] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8897] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8896] <... mkdir resumed>) = 0 [pid 8895] <... mmap resumed>) = 0x7f38d9b57000 [pid 8896] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8895] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8896] <... futex resumed>) = 1 [pid 8896] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8895] <... mprotect resumed>) = 0 [pid 8895] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8906], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8906 [pid 8895] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 230.944056][ T8902] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 230.955076][ T8901] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 230.976598][ T8902] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 230.986505][ T8902] REISERFS (device loop0): using ordered data mode [ 230.993022][ T8902] reiserfs: using flush barriers [ 230.997087][ T8901] REISERFS (device loop5): using ordered data mode [pid 8895] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8906 attached [pid 8894] <... futex resumed>) = 0 [pid 8906] set_robust_list(0x7f38d9b779e0, 24 [pid 8894] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8906] <... set_robust_list resumed>) = 0 [pid 8896] <... futex resumed>) = 0 [pid 8894] <... futex resumed>) = 1 [pid 8906] mkdir(".", 0777 [pid 8896] mkdir("./bus", 000 [pid 8894] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8906] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8896] <... mkdir resumed>) = 0 [pid 8906] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8896] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8894] <... futex resumed>) = 0 [pid 8896] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8894] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8906] <... mount resumed>) = 0 [pid 8906] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8906] chdir(".") = 0 [pid 8906] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8895] <... futex resumed>) = 0 [pid 8895] exit_group(0) = ? [pid 8906] <... futex resumed>) = ? [pid 8897] <... futex resumed>) = ? [pid 8894] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8897] +++ exited with 0 +++ [pid 8906] +++ exited with 0 +++ [pid 8895] +++ exited with 0 +++ [ 231.003131][ T8902] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 231.004609][ T8901] reiserfs: using flush barriers [ 231.021328][ T8902] REISERFS (device loop0): checking transaction log (loop0) [ 231.032319][ T8896] overlayfs: upper fs needs to support d_type. [ 231.039909][ T8896] overlayfs: upper fs does not support tmpfile. [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8895, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [ 231.041681][ T8901] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 231.047801][ T8896] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 231.063530][ T8901] REISERFS (device loop5): checking transaction log (loop5) [ 231.071761][ T8896] overlayfs: failed to resolve './file0': -2 [ 231.077461][ T8902] REISERFS (device loop0): Using r5 hash to sort names [ 231.084582][ T8901] REISERFS (device loop5): Using r5 hash to sort names [pid 8896] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8894] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8896] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8894] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8896] <... futex resumed>) = 0 [pid 8894] <... futex resumed>) = 0 [pid 5000] umount2("./218", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8896] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8894] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8894] <... mmap resumed>) = 0x7f38d9b57000 [pid 5000] openat(AT_FDCWD, "./218", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8894] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... openat resumed>) = 3 [pid 8894] <... mprotect resumed>) = 0 [pid 5000] fstat(3, [pid 8894] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 8894] <... clone resumed>, parent_tid=[8907], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8907 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 8894] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./218/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8894] <... futex resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8894] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] lstat("./218/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./218/binderfs") = 0 [pid 5000] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 8907 attached [pid 8902] <... mount resumed>) = 0 [pid 8907] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8907] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8907] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 8907] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8907] chdir(".") = 0 [pid 8907] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8894] <... futex resumed>) = 0 [pid 8907] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8902] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8894] exit_group(0 [pid 8901] <... mount resumed>) = 0 [pid 8901] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8901] chdir("./file0") = 0 [pid 8901] ioctl(4, LOOP_CLR_FD) = 0 [pid 8901] close(4 [pid 8896] <... futex resumed>) = ? [pid 8894] <... exit_group resumed>) = ? [pid 8896] +++ exited with 0 +++ [pid 8901] <... close resumed>) = 0 [pid 8901] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8898] <... futex resumed>) = 0 [pid 8898] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8898] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8901] <... futex resumed>) = 1 [pid 8901] mkdir("./file1", 000) = 0 [pid 8901] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8898] <... futex resumed>) = 0 [pid 8898] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8898] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8901] <... futex resumed>) = 1 [pid 8901] mkdir("./bus", 000) = 0 [pid 8901] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8898] <... futex resumed>) = 0 [pid 8898] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8898] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8901] <... futex resumed>) = 1 [pid 8901] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8907] <... futex resumed>) = ? [pid 8902] <... openat resumed>) = 3 [ 231.090308][ T8902] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 231.110140][ T8902] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 231.120593][ T8901] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 231.133669][ T8901] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 231.148562][ T8901] overlayfs: upper fs needs to support d_type. [pid 8907] +++ exited with 0 +++ [pid 8902] chdir("./file0" [pid 8894] +++ exited with 0 +++ [pid 8902] <... chdir resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8894, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 8902] ioctl(4, LOOP_CLR_FD [pid 4999] umount2("./218", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8902] <... ioctl resumed>) = 0 [pid 8902] close(4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./218", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8902] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 8902] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] fstat(3, [pid 8902] <... futex resumed>) = 1 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8899] <... futex resumed>) = 0 [pid 8902] mkdir("./file1", 000 [pid 8899] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] getdents64(3, [pid 8899] <... futex resumed>) = 0 [pid 8899] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 8902] <... mkdir resumed>) = 0 [pid 4999] umount2("./218/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8902] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8902] <... futex resumed>) = 1 [pid 8901] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8899] <... futex resumed>) = 0 [pid 4999] lstat("./218/binderfs", [pid 8902] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8901] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8899] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8901] <... futex resumed>) = 1 [pid 8899] <... futex resumed>) = 0 [pid 8898] <... futex resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 8902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8901] mkdir(".", 0777 [pid 8899] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8898] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8902] mkdir("./bus", 000 [pid 4999] unlink("./218/binderfs" [pid 8902] <... mkdir resumed>) = 0 [pid 8901] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8898] <... futex resumed>) = 0 [pid 8901] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8898] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... unlink resumed>) = 0 [pid 8902] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8899] <... futex resumed>) = 0 [pid 4999] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8902] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8899] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8899] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8901] <... mount resumed>) = 0 [pid 8901] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8901] chdir(".") = 0 [pid 8901] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8898] <... futex resumed>) = 0 [pid 8898] exit_group(0) = ? [pid 8901] +++ exited with 0 +++ [pid 8898] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8898, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5003] umount2("./218", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./218", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./218/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 231.155369][ T8901] overlayfs: upper fs does not support tmpfile. [ 231.162698][ T8901] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 231.173125][ T8901] overlayfs: failed to resolve './file0': -2 [ 231.193841][ T8902] overlayfs: upper fs needs to support d_type. [pid 5003] lstat("./218/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./218/binderfs" [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./218/file0", [pid 5003] <... unlink resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./218/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./218/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./218") = 0 [pid 5000] mkdir("./219", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8908 ./strace-static-x86_64: Process 8908 attached [pid 8899] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8899] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8908] set_robust_list(0x555556b565e0, 24 [pid 8899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8908] <... set_robust_list resumed>) = 0 [pid 8899] <... mmap resumed>) = 0x7f38d9b57000 [pid 8899] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8908] chdir("./219" [pid 8899] <... mprotect resumed>) = 0 [pid 8908] <... chdir resumed>) = 0 [pid 8899] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8908] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8899] <... clone resumed>, parent_tid=[8909], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8909 [pid 8899] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8899] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8908] <... prctl resumed>) = 0 [pid 8908] setpgid(0, 0) = 0 [pid 8908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8908] write(3, "1000", 4) = 4 [pid 8908] close(3) = 0 [pid 8908] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8908] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8908] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 8909 attached [pid 8909] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8909] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8909] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8908] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8910], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8910 [pid 8908] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 231.209484][ T8902] overlayfs: upper fs does not support tmpfile. [ 231.234957][ T8902] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 8908] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8909] <... mount resumed>) = 0 [pid 8909] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8909] chdir(".") = 0 [pid 8909] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8899] <... futex resumed>) = 0 [pid 8909] <... futex resumed>) = 1 ./strace-static-x86_64: Process 8910 attached [pid 8909] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8910] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8910] memfd_create("syzkaller", 0) = 3 [pid 8910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8902] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8902] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8902] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8899] exit_group(0 [pid 8909] <... futex resumed>) = ? [pid 8899] <... exit_group resumed>) = ? [pid 8909] +++ exited with 0 +++ [pid 8902] <... futex resumed>) = ? [pid 8902] +++ exited with 0 +++ [pid 8899] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8899, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./219", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./219", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] <... umount2 resumed>) = 0 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, [pid 4999] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./218/file0", [pid 4998] umount2("./219/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8910] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5003] <... umount2 resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./219/binderfs", [pid 4999] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./218/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 231.271846][ T8902] overlayfs: failed to resolve './file0': -2 [pid 4998] unlink("./219/binderfs" [pid 5003] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 4 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./218/file0", [pid 4998] <... unlink resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] fstat(4, [pid 5003] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./218/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] getdents64(4, [pid 5003] <... openat resumed>) = 4 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] fstat(4, [pid 4999] getdents64(4, [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] close(4 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] <... close resumed>) = 0 [pid 5003] close(4 [pid 4999] rmdir("./218/file0" [pid 5003] <... close resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5003] rmdir("./218/file0" [pid 4999] getdents64(3, [pid 5003] <... rmdir resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 5003] close(3) = 0 [pid 4999] <... close resumed>) = 0 [pid 5003] rmdir("./218" [pid 4999] rmdir("./218" [pid 5003] <... rmdir resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5003] mkdir("./219", 0777) = 0 [pid 4999] mkdir("./219", 0777 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 4999] <... mkdir resumed>) = 0 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... openat resumed>) = 3 [pid 5003] close(3) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 8911 [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8912 ./strace-static-x86_64: Process 8912 attached [pid 8912] set_robust_list(0x555556b565e0, 24) = 0 [pid 8912] chdir("./219") = 0 [pid 8912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8912] setpgid(0, 0./strace-static-x86_64: Process 8911 attached [pid 8911] set_robust_list(0x555556b565e0, 24 [pid 8912] <... setpgid resumed>) = 0 [pid 8912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8911] <... set_robust_list resumed>) = 0 [pid 8911] chdir("./219" [pid 8912] <... openat resumed>) = 3 [pid 8911] <... chdir resumed>) = 0 [pid 8912] write(3, "1000", 4 [pid 8911] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8912] <... write resumed>) = 4 [pid 8911] <... prctl resumed>) = 0 [pid 8911] setpgid(0, 0 [pid 8912] close(3) = 0 [pid 8912] symlink("/dev/binderfs", "./binderfs" [pid 8911] <... setpgid resumed>) = 0 [pid 8912] <... symlink resumed>) = 0 [pid 8911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8912] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8911] <... openat resumed>) = 3 [pid 8911] write(3, "1000", 4) = 4 [pid 8911] close(3 [pid 8912] <... mmap resumed>) = 0x7f38e1b78000 [pid 8911] <... close resumed>) = 0 [pid 8912] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8911] symlink("/dev/binderfs", "./binderfs" [pid 8912] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8911] <... symlink resumed>) = 0 [pid 8911] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8912] <... clone resumed>, parent_tid=[8913], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8913 [pid 8911] <... futex resumed>) = 0 [pid 8912] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8912] <... futex resumed>) = 0 [pid 8911] <... mmap resumed>) = 0x7f38e1b78000 [pid 8912] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8911] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8911] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8914], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8914 [pid 8911] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8911] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8914 attached [pid 8914] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8914] memfd_create("syzkaller", 0) = 3 [pid 8914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 8913 attached [pid 8913] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8913] memfd_create("syzkaller", 0) = 3 [pid 8913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8914] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8913] <... mmap resumed>) = 0x7f38d9778000 [pid 8910] <... write resumed>) = 4194304 [pid 8914] <... write resumed>) = 4194304 [pid 8914] munmap(0x7f38d9778000, 4194304 [pid 8910] munmap(0x7f38d9778000, 4194304) = 0 [pid 8910] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8910] ioctl(4, LOOP_SET_FD, 3 [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 8914] <... munmap resumed>) = 0 [pid 4998] lstat("./219/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./219/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8914] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4998] <... openat resumed>) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8914] ioctl(4, LOOP_SET_FD, 3 [pid 8913] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8910] <... ioctl resumed>) = 0 [pid 4998] getdents64(4, [pid 8910] close(3) = 0 [pid 8910] mkdir("./file0", 0777) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 8910] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 4998] rmdir("./219/file0" [pid 8914] <... ioctl resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 8914] close(3 [pid 4998] getdents64(3, [pid 8914] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 8914] mkdir("./file0", 0777) = 0 [pid 4998] close(3 [pid 8914] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8913] <... write resumed>) = 4194304 [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./219") = 0 [pid 4998] mkdir("./220", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8917 [pid 8913] munmap(0x7f38d9778000, 4194304) = 0 [pid 8913] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 231.437532][ T8910] loop2: detected capacity change from 0 to 8192 [ 231.441272][ T8914] loop5: detected capacity change from 0 to 8192 [ 231.452528][ T8910] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 231.466921][ T8910] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 8913] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 8917 attached ) = 0 [pid 8913] close(3) = 0 [pid 8913] mkdir("./file0", 0777) = 0 [pid 8913] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8917] set_robust_list(0x555556b565e0, 24) = 0 [ 231.482972][ T8913] loop1: detected capacity change from 0 to 8192 [ 231.486829][ T8910] REISERFS (device loop2): using ordered data mode [ 231.493877][ T8914] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 231.496680][ T8910] reiserfs: using flush barriers [ 231.510068][ T8914] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 8917] chdir("./220") = 0 [ 231.514781][ T8910] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 231.524241][ T8914] REISERFS (device loop5): using ordered data mode [ 231.540121][ T8910] REISERFS (device loop2): checking transaction log (loop2) [ 231.545835][ T8913] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 231.545857][ T8913] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 231.545925][ T8913] REISERFS (device loop1): using ordered data mode [ 231.554584][ T8910] REISERFS (device loop2): Using r5 hash to sort names [ 231.567269][ T8914] reiserfs: using flush barriers [ 231.575680][ T8910] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 231.583852][ T8913] reiserfs: using flush barriers [ 231.607447][ T8914] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 231.611746][ T8910] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 8917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8917] setpgid(0, 0) = 0 [pid 8910] <... mount resumed>) = 0 [pid 8910] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8910] <... openat resumed>) = 3 [pid 8910] chdir("./file0") = 0 [pid 8910] ioctl(4, LOOP_CLR_FD) = 0 [pid 8910] close(4 [pid 8917] <... openat resumed>) = 3 [pid 8910] <... close resumed>) = 0 [pid 8910] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8908] <... futex resumed>) = 0 [pid 8908] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8908] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8910] <... futex resumed>) = 1 [pid 8910] mkdir("./file1", 000) = 0 [pid 8910] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8908] <... futex resumed>) = 0 [pid 8908] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8908] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8910] <... futex resumed>) = 1 [pid 8910] mkdir("./bus", 000) = 0 [pid 8910] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8908] <... futex resumed>) = 0 [pid 8908] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8908] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8910] <... futex resumed>) = 1 [pid 8910] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 231.629049][ T8914] REISERFS (device loop5): checking transaction log (loop5) [ 231.647908][ T8913] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 231.658581][ T8914] REISERFS (device loop5): Using r5 hash to sort names [ 231.664628][ T8913] REISERFS (device loop1): checking transaction log (loop1) [pid 8917] write(3, "1000", 4) = 4 [pid 8917] close(3 [pid 8914] <... mount resumed>) = 0 [pid 8914] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8914] chdir("./file0") = 0 [pid 8914] ioctl(4, LOOP_CLR_FD) = 0 [pid 8914] close(4 [pid 8908] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8908] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 8917] <... close resumed>) = 0 [pid 8908] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8908] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8908] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8908] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8919], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8919 [pid 8908] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8908] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8914] <... close resumed>) = 0 [pid 8914] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8914] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 8919 attached [pid 8919] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8919] mkdir(".", 0777) = -1 EEXIST (File exists) [ 231.671265][ T8914] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 231.686401][ T8910] overlayfs: upper fs needs to support d_type. [ 231.691449][ T8914] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 231.700714][ T8913] REISERFS (device loop1): Using r5 hash to sort names [ 231.713661][ T8910] overlayfs: upper fs does not support tmpfile. [ 231.718678][ T8913] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 8919] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8917] symlink("/dev/binderfs", "./binderfs" [pid 8911] <... futex resumed>) = 0 [pid 8919] <... mount resumed>) = 0 [pid 8919] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8919] chdir(".") = 0 [pid 8919] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8908] <... futex resumed>) = 0 [pid 8919] <... futex resumed>) = 1 [pid 8919] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8917] <... symlink resumed>) = 0 [pid 8911] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8913] <... mount resumed>) = 0 [pid 8913] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8913] chdir("./file0") = 0 [pid 8913] ioctl(4, LOOP_CLR_FD) = 0 [pid 8913] close(4 [pid 8917] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8914] <... futex resumed>) = 0 [pid 8913] <... close resumed>) = 0 [pid 8911] <... futex resumed>) = 1 [pid 8914] mkdir("./file1", 000) = 0 [pid 8914] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8914] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8917] <... futex resumed>) = 0 [pid 8911] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 8917] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8911] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8917] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 8911] <... futex resumed>) = 1 [pid 8913] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8914] <... futex resumed>) = 0 [pid 8914] mkdir("./bus", 000) = 0 [pid 8914] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8914] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8917] <... mprotect resumed>) = 0 [pid 8911] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 8917] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8911] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8917] <... clone resumed>, parent_tid=[8920], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8920 [pid 8911] <... futex resumed>) = 1 [pid 8914] <... futex resumed>) = 0 [pid 8914] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,"./strace-static-x86_64: Process 8920 attached [pid 8917] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8913] <... futex resumed>) = 1 [pid 8912] <... futex resumed>) = 0 [pid 8911] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8917] <... futex resumed>) = 0 [pid 8913] mkdir("./file1", 000 [pid 8912] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8917] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8913] <... mkdir resumed>) = 0 [pid 8912] <... futex resumed>) = 0 [pid 8913] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8912] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8910] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8913] <... futex resumed>) = 0 [pid 8912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8910] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8913] mkdir("./bus", 000 [pid 8912] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8910] <... futex resumed>) = 0 [pid 8913] <... mkdir resumed>) = 0 [pid 8912] <... futex resumed>) = 0 [pid 8910] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8913] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8912] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8913] <... futex resumed>) = 0 [pid 8912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8913] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8912] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8912] <... futex resumed>) = 0 [pid 8913] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8912] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8908] exit_group(0 [pid 8920] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8920] memfd_create("syzkaller", 0) = 3 [pid 8920] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 231.732219][ T8910] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 231.736457][ T8913] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 231.741748][ T8910] overlayfs: failed to resolve './file0': -2 [ 231.772046][ T8914] overlayfs: upper fs needs to support d_type. [ 231.778474][ T8914] overlayfs: upper fs does not support tmpfile. [pid 8919] <... futex resumed>) = ? [pid 8910] <... futex resumed>) = ? [pid 8908] <... exit_group resumed>) = ? [pid 8919] +++ exited with 0 +++ [pid 8910] +++ exited with 0 +++ [pid 8908] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8908, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./219", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./219", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./219/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./219/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./219/binderfs") = 0 [pid 5000] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8911] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8911] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8911] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8911] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8921], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8921 [pid 8911] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8914] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8911] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8914] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8914] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8912] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8912] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8912] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8912] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8922], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8922 [ 231.785165][ T8914] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 231.793130][ T8913] overlayfs: upper fs needs to support d_type. [ 231.794056][ T8914] overlayfs: failed to resolve './file0': -2 [ 231.807659][ T8913] overlayfs: upper fs does not support tmpfile. [ 231.814319][ T8913] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 8912] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8912] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8921 attached [pid 8921] set_robust_list(0x7f38d9b779e0, 24./strace-static-x86_64: Process 8922 attached ) = 0 [pid 8922] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8921] mkdir(".", 0777 [pid 8922] mkdir(".", 0777 [pid 8921] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8922] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8921] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8922] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8920] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8922] <... mount resumed>) = 0 [pid 8921] <... mount resumed>) = 0 [pid 8922] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8921] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8922] <... openat resumed>) = 4 [pid 8921] <... openat resumed>) = 4 [pid 8922] chdir("." [pid 8921] chdir("." [pid 8922] <... chdir resumed>) = 0 [pid 8921] <... chdir resumed>) = 0 [pid 8922] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8921] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8922] <... futex resumed>) = 1 [pid 8921] <... futex resumed>) = 1 [pid 8922] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8921] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8912] <... futex resumed>) = 0 [pid 8911] <... futex resumed>) = 0 [pid 8911] exit_group(0 [pid 8921] <... futex resumed>) = ? [pid 8914] <... futex resumed>) = ? [pid 8911] <... exit_group resumed>) = ? [pid 8921] +++ exited with 0 +++ [pid 8914] +++ exited with 0 +++ [pid 8913] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8911] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8911, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 8913] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... restart_syscall resumed>) = 0 [pid 8913] <... futex resumed>) = 0 [pid 8912] exit_group(0 [pid 8922] <... futex resumed>) = ? [pid 8912] <... exit_group resumed>) = ? [pid 8922] +++ exited with 0 +++ [pid 8913] +++ exited with 0 +++ [pid 8912] +++ exited with 0 +++ [pid 5003] umount2("./219", MNT_DETACH|UMOUNT_NOFOLLOW [ 231.837502][ T8913] overlayfs: failed to resolve './file0': -2 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8912, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 5003] openat(AT_FDCWD, "./219", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... restart_syscall resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./219", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] getdents64(3, [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] openat(AT_FDCWD, "./219", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] umount2("./219/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 3 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] fstat(3, [pid 5003] lstat("./219/binderfs", [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(3, [pid 5003] unlink("./219/binderfs" [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./219/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... unlink resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] lstat("./219/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./219/binderfs") = 0 [pid 4999] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./219/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./219/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./219/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./219") = 0 [pid 5000] mkdir("./220", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8923 ./strace-static-x86_64: Process 8923 attached [pid 8923] set_robust_list(0x555556b565e0, 24) = 0 [pid 8923] chdir("./220") = 0 [pid 8923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8923] setpgid(0, 0) = 0 [pid 8923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8923] write(3, "1000", 4) = 4 [pid 8923] close(3) = 0 [pid 8923] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8923] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8923] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8923] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8924], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8924 [pid 8923] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8923] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8920] <... write resumed>) = 4194304 [pid 5003] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 8924 attached [pid 8920] munmap(0x7f38d9778000, 4194304 [pid 5003] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8924] set_robust_list(0x7f38e1b989e0, 24 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8924] <... set_robust_list resumed>) = 0 [pid 5003] lstat("./219/file0", [pid 8924] memfd_create("syzkaller", 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8924] <... memfd_create resumed>) = 3 [pid 8920] <... munmap resumed>) = 0 [pid 5003] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8924] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8920] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8924] <... mmap resumed>) = 0x7f38d9778000 [pid 5003] openat(AT_FDCWD, "./219/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8920] <... openat resumed>) = 4 [pid 8920] ioctl(4, LOOP_SET_FD, 3 [pid 5003] <... openat resumed>) = 4 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8920] <... ioctl resumed>) = 0 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./219/file0" [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... rmdir resumed>) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./219" [pid 4999] lstat("./219/file0", [pid 5003] <... rmdir resumed>) = 0 [pid 5003] mkdir("./220", 0777) = 0 [pid 8920] close(3 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 8920] <... close resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 8920] mkdir("./file0", 0777 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5003] close(3 [pid 8920] <... mkdir resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 8920] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8925 attached [pid 8924] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 8925 [pid 8925] set_robust_list(0x555556b565e0, 24 [pid 4999] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8925] <... set_robust_list resumed>) = 0 [pid 8925] chdir("./220" [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8925] <... chdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./219/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8925] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, [pid 8925] <... prctl resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 8925] setpgid(0, 0) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./219/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./219") = 0 [pid 4999] mkdir("./220", 0777 [pid 8925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 8925] <... openat resumed>) = 3 [pid 8925] write(3, "1000", 4) = 4 [pid 8925] close(3) = 0 [pid 8925] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8925] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8925] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8925] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8927], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8927 [pid 8925] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8925] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 231.967234][ T8920] loop0: detected capacity change from 0 to 8192 [ 231.995323][ T8920] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8928 attached ./strace-static-x86_64: Process 8927 attached [pid 8924] <... write resumed>) = 4194304 [pid 8927] set_robust_list(0x7f38e1b989e0, 24 [pid 8924] munmap(0x7f38d9778000, 4194304 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 8928 [pid 8927] <... set_robust_list resumed>) = 0 [pid 8924] <... munmap resumed>) = 0 [pid 8927] memfd_create("syzkaller", 0 [pid 8924] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8927] <... memfd_create resumed>) = 3 [pid 8924] <... openat resumed>) = 4 [pid 8927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8924] ioctl(4, LOOP_SET_FD, 3 [pid 8927] <... mmap resumed>) = 0x7f38d9778000 [pid 8928] set_robust_list(0x555556b565e0, 24) = 0 [pid 8927] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8924] <... ioctl resumed>) = 0 [pid 8924] close(3) = 0 [pid 8928] chdir("./220" [pid 8924] mkdir("./file0", 0777 [pid 8928] <... chdir resumed>) = 0 [pid 8928] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8924] <... mkdir resumed>) = 0 [pid 8928] <... prctl resumed>) = 0 [pid 8924] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8928] setpgid(0, 0) = 0 [pid 8928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8928] write(3, "1000", 4) = 4 [pid 8928] close(3) = 0 [pid 8928] symlink("/dev/binderfs", "./binderfs") = 0 [ 232.029360][ T8920] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 232.035763][ T8924] loop2: detected capacity change from 0 to 8192 [ 232.038863][ T8920] REISERFS (device loop0): using ordered data mode [ 232.051775][ T8920] reiserfs: using flush barriers [ 232.057809][ T8920] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 8928] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8928] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8928] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8930], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8930 [pid 8928] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8928] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8930 attached [pid 8930] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8930] memfd_create("syzkaller", 0) = 3 [pid 8930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8930] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8927] <... write resumed>) = 4194304 [pid 8927] munmap(0x7f38d9778000, 4194304) = 0 [pid 8927] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 232.082375][ T8924] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.099079][ T8920] REISERFS (device loop0): checking transaction log (loop0) [ 232.110722][ T8924] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 232.123938][ T8927] loop5: detected capacity change from 0 to 8192 [pid 8927] ioctl(4, LOOP_SET_FD, 3 [pid 8930] <... write resumed>) = 4194304 [pid 8927] <... ioctl resumed>) = 0 [pid 8930] munmap(0x7f38d9778000, 4194304 [pid 8927] close(3 [pid 8930] <... munmap resumed>) = 0 [pid 8927] <... close resumed>) = 0 [pid 8927] mkdir("./file0", 0777) = 0 [pid 8927] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8930] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 232.132102][ T8920] REISERFS (device loop0): Using r5 hash to sort names [ 232.140046][ T8924] REISERFS (device loop2): using ordered data mode [ 232.140683][ T8920] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.148154][ T8924] reiserfs: using flush barriers [ 232.161232][ T8920] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 232.172199][ T8930] loop1: detected capacity change from 0 to 8192 [pid 8930] ioctl(4, LOOP_SET_FD, 3 [pid 8920] <... mount resumed>) = 0 [pid 8920] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8920] chdir("./file0") = 0 [pid 8920] ioctl(4, LOOP_CLR_FD) = 0 [pid 8920] close(4) = 0 [pid 8920] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8917] <... futex resumed>) = 0 [pid 8917] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8917] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8920] <... futex resumed>) = 1 [pid 8920] mkdir("./file1", 000) = 0 [pid 8920] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8917] <... futex resumed>) = 0 [pid 8917] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8917] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8920] <... futex resumed>) = 1 [pid 8920] mkdir("./bus", 000) = 0 [pid 8920] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8917] <... futex resumed>) = 0 [pid 8917] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8917] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8920] <... futex resumed>) = 1 [pid 8920] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8930] <... ioctl resumed>) = 0 [ 232.184604][ T8924] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 232.200524][ T8920] overlayfs: upper fs needs to support d_type. [ 232.202069][ T8924] REISERFS (device loop2): checking transaction log (loop2) [ 232.214563][ T8927] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 8930] close(3) = 0 [pid 8917] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8917] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8917] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8917] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8917] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8932], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8932 [pid 8917] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8917] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8930] mkdir("./file0", 0777) = 0 [ 232.227877][ T8927] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 232.228071][ T8920] overlayfs: upper fs does not support tmpfile. [ 232.239077][ T8927] REISERFS (device loop5): using ordered data mode [ 232.250320][ T8927] reiserfs: using flush barriers [ 232.253416][ T8924] REISERFS (device loop2): Using r5 hash to sort names [ 232.256524][ T8920] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 232.263379][ T8930] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 8930] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 8932 attached [pid 8932] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8932] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8932] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 8932] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8932] chdir(".") = 0 [pid 8932] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8917] <... futex resumed>) = 0 [pid 8932] <... futex resumed>) = 1 [ 232.270231][ T8920] overlayfs: failed to resolve './file0': -2 [ 232.282095][ T8927] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 232.305173][ T8927] REISERFS (device loop5): checking transaction log (loop5) [ 232.309980][ T8924] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.313489][ T8927] REISERFS (device loop5): Using r5 hash to sort names [pid 8932] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8927] <... mount resumed>) = 0 [pid 8924] <... mount resumed>) = 0 [pid 8924] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8924] chdir("./file0") = 0 [pid 8924] ioctl(4, LOOP_CLR_FD) = 0 [pid 8924] close(4 [pid 8927] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8920] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8927] <... openat resumed>) = 3 [pid 8920] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8927] chdir("./file0" [pid 8920] <... futex resumed>) = 0 [pid 8927] <... chdir resumed>) = 0 [pid 8920] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8917] exit_group(0 [pid 8924] <... close resumed>) = 0 [pid 8932] <... futex resumed>) = ? [pid 8927] ioctl(4, LOOP_CLR_FD [pid 8924] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8920] <... futex resumed>) = ? [pid 8917] <... exit_group resumed>) = ? [pid 8932] +++ exited with 0 +++ [pid 8927] <... ioctl resumed>) = 0 [pid 8920] +++ exited with 0 +++ [pid 8917] +++ exited with 0 +++ [pid 8927] close(4) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8917, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 8927] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] umount2("./220", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8927] <... futex resumed>) = 1 [pid 8925] <... futex resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8927] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8925] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] openat(AT_FDCWD, "./220", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8925] <... futex resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 8927] mkdir("./file1", 000 [pid 8925] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] fstat(3, [pid 8927] <... mkdir resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8927] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] getdents64(3, [pid 8927] <... futex resumed>) = 1 [pid 8925] <... futex resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 8927] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8925] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] umount2("./220/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8925] <... futex resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8927] mkdir("./bus", 000 [pid 8925] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] lstat("./220/binderfs", [pid 8927] <... mkdir resumed>) = 0 [pid 8924] <... futex resumed>) = 1 [pid 8923] <... futex resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 8927] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] unlink("./220/binderfs" [pid 8927] <... futex resumed>) = 1 [pid 8925] <... futex resumed>) = 0 [pid 8924] mkdir("./file1", 000 [pid 8923] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... unlink resumed>) = 0 [ 232.326017][ T8930] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 232.340952][ T8927] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.342502][ T8924] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 232.354145][ T8927] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 232.354476][ T8930] REISERFS (device loop1): using ordered data mode [ 232.379408][ T8930] reiserfs: using flush barriers [pid 8927] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8925] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8924] <... mkdir resumed>) = 0 [pid 8923] <... futex resumed>) = 0 [pid 4998] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8925] <... futex resumed>) = 0 [pid 8924] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8923] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8927] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 232.400206][ T8930] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 232.419394][ T8927] overlayfs: upper fs needs to support d_type. [ 232.423984][ T8930] REISERFS (device loop1): checking transaction log (loop1) [ 232.425645][ T8927] overlayfs: upper fs does not support tmpfile. [ 232.440249][ T8930] REISERFS (device loop1): Using r5 hash to sort names [pid 8925] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8924] <... futex resumed>) = 0 [pid 8923] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8924] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8923] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8923] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8924] mkdir("./bus", 000) = 0 [pid 8924] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8923] <... futex resumed>) = 0 [pid 8924] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8923] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8923] <... futex resumed>) = 0 [pid 8924] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8923] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8925] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8925] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 232.441314][ T8927] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 232.447941][ T8930] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.457918][ T8927] overlayfs: failed to resolve './file0': -2 [ 232.475087][ T8930] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 232.477925][ T8924] overlayfs: upper fs needs to support d_type. [pid 8925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8925] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8925] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8934], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8934 [pid 8927] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8925] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8927] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8927] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8925] <... futex resumed>) = 0 ./strace-static-x86_64: Process 8934 attached [pid 8925] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8934] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8934] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8934] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8930] <... mount resumed>) = 0 [pid 8930] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8934] <... mount resumed>) = 0 [pid 8923] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8923] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8923] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8923] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8935], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8935 [pid 8923] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8923] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8934] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8934] chdir(".") = 0 [pid 8934] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8934] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8925] <... futex resumed>) = 0 [pid 8925] exit_group(0 [pid 8927] <... futex resumed>) = ? [pid 8925] <... exit_group resumed>) = ? [pid 8924] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8927] +++ exited with 0 +++ [pid 8934] <... futex resumed>) = ? [pid 8924] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8930] <... openat resumed>) = 3 [pid 8924] <... futex resumed>) = 0 [pid 8930] chdir("./file0" [pid 8924] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 8935 attached [pid 8930] <... chdir resumed>) = 0 [pid 8935] set_robust_list(0x7f38d9b779e0, 24 [pid 8930] ioctl(4, LOOP_CLR_FD [pid 8935] <... set_robust_list resumed>) = 0 [pid 8930] <... ioctl resumed>) = 0 [pid 8930] close(4 [pid 8935] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8934] +++ exited with 0 +++ [pid 8930] <... close resumed>) = 0 [pid 8925] +++ exited with 0 +++ [pid 4998] <... umount2 resumed>) = 0 [pid 8935] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8930] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8930] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8928] <... futex resumed>) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8925, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4998] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8928] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8930] <... futex resumed>) = 0 [pid 8928] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8930] mkdir("./file1", 000 [pid 5003] umount2("./220", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] lstat("./220/file0", [pid 8935] <... mount resumed>) = 0 [pid 8930] <... mkdir resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8935] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8930] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] openat(AT_FDCWD, "./220", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8935] <... openat resumed>) = 4 [pid 8930] <... futex resumed>) = 1 [pid 8928] <... futex resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 8935] chdir("." [pid 8930] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8928] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] fstat(3, [pid 8935] <... chdir resumed>) = 0 [pid 8930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8928] <... futex resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8935] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8930] mkdir("./bus", 000 [pid 8928] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] getdents64(3, [pid 8935] <... futex resumed>) = 1 [pid 8930] <... mkdir resumed>) = 0 [pid 8923] <... futex resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 8935] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8930] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8923] exit_group(0 [pid 5003] umount2("./220/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8935] <... futex resumed>) = ? [pid 8930] <... futex resumed>) = 1 [pid 8928] <... futex resumed>) = 0 [pid 8924] <... futex resumed>) = ? [pid 8923] <... exit_group resumed>) = ? [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8935] +++ exited with 0 +++ [pid 8930] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8928] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8924] +++ exited with 0 +++ [pid 4998] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 8923] +++ exited with 0 +++ [pid 4998] openat(AT_FDCWD, "./220/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] lstat("./220/binderfs", [pid 8930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8928] <... futex resumed>) = 0 [pid 8930] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8928] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8923, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 4998] <... openat resumed>) = 4 [pid 4998] fstat(4, [pid 5003] unlink("./220/binderfs" [pid 5000] umount2("./220", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [ 232.495361][ T8924] overlayfs: upper fs does not support tmpfile. [ 232.504197][ T8924] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 232.515397][ T8924] overlayfs: failed to resolve './file0': -2 [pid 4998] rmdir("./220/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./220") = 0 [pid 4998] mkdir("./221", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5003] <... unlink resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] openat(AT_FDCWD, "./220", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] close(3 [pid 5000] fstat(3, [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8936 ./strace-static-x86_64: Process 8936 attached [pid 8936] set_robust_list(0x555556b565e0, 24 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./220/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./220/binderfs", [pid 8936] <... set_robust_list resumed>) = 0 [pid 8936] chdir("./221") = 0 [pid 8936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8936] setpgid(0, 0) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./220/binderfs") = 0 [pid 5000] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8936] write(3, "1000", 4) = 4 [pid 8936] close(3) = 0 [pid 8936] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8936] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8936] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8936] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8937], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8937 [pid 8936] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8936] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8937 attached [pid 8937] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8937] memfd_create("syzkaller", 0) = 3 [pid 8937] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8928] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8928] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8928] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8928] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8938], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8938 [pid 8928] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8928] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8938 attached [pid 8938] set_robust_list(0x7f38d9b779e0, 24) = 0 [ 232.552044][ T8930] overlayfs: upper fs needs to support d_type. [ 232.585883][ T8930] overlayfs: upper fs does not support tmpfile. [pid 8938] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8938] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 8938] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8938] chdir(".") = 0 [pid 8938] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8928] <... futex resumed>) = 0 [pid 8938] <... futex resumed>) = 1 [pid 8938] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 8937] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5003] lstat("./220/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./220/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./220/file0" [pid 5000] <... umount2 resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] close(3 [pid 5000] lstat("./220/file0", [pid 5003] <... close resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] rmdir("./220" [pid 5000] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... rmdir resumed>) = 0 [pid 5003] mkdir("./221", 0777 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./220/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5000] <... openat resumed>) = 4 [pid 5003] <... openat resumed>) = 3 [pid 5000] fstat(4, [pid 5003] ioctl(3, LOOP_CLR_FD [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] getdents64(4, [pid 5003] close(3 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 8930] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] <... close resumed>) = 0 [pid 5000] getdents64(4, [pid 8930] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8928] exit_group(0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 8938] <... futex resumed>) = ? [pid 8930] <... futex resumed>) = ? [pid 8928] <... exit_group resumed>) = ? [pid 8938] +++ exited with 0 +++ [pid 5000] close(4./strace-static-x86_64: Process 8939 attached [pid 8930] +++ exited with 0 +++ [pid 8928] +++ exited with 0 +++ [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 8939 [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./220/file0") = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8928, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 8939] set_robust_list(0x555556b565e0, 24 [pid 5000] close(3) = 0 [pid 8939] <... set_robust_list resumed>) = 0 [pid 5000] rmdir("./220" [pid 4999] umount2("./220", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8939] chdir("./221" [pid 5000] <... rmdir resumed>) = 0 [pid 8939] <... chdir resumed>) = 0 [pid 5000] mkdir("./221", 0777 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8939] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./220", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8939] <... prctl resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8939] setpgid(0, 0 [pid 5000] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 3 [pid 8939] <... setpgid resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4999] fstat(3, [pid 8939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8939] <... openat resumed>) = 3 [pid 5000] close(3 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8939] write(3, "1000", 4 [pid 5000] <... close resumed>) = 0 [pid 8939] <... write resumed>) = 4 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] getdents64(3, [pid 8939] close(3) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 8940 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 8939] symlink("/dev/binderfs", "./binderfs" [pid 4999] umount2("./220/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8939] <... symlink resumed>) = 0 [pid 8939] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8939] <... futex resumed>) = 0 [pid 4999] lstat("./220/binderfs", [pid 8939] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 8939] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4999] unlink("./220/binderfs" [pid 8939] <... mprotect resumed>) = 0 [ 232.621984][ T8930] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 232.648778][ T8930] overlayfs: failed to resolve './file0': -2 [pid 8939] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 4999] <... unlink resumed>) = 0 [pid 8939] <... clone resumed>, parent_tid=[8941], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8941 [pid 4999] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8939] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8939] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8937] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 8941 attached ./strace-static-x86_64: Process 8940 attached [pid 8937] munmap(0x7f38d9778000, 4194304 [pid 8941] set_robust_list(0x7f38e1b989e0, 24 [pid 8940] set_robust_list(0x555556b565e0, 24 [pid 8941] <... set_robust_list resumed>) = 0 [pid 8941] memfd_create("syzkaller", 0 [pid 8940] <... set_robust_list resumed>) = 0 [pid 8937] <... munmap resumed>) = 0 [pid 8941] <... memfd_create resumed>) = 3 [pid 8940] chdir("./221" [pid 8937] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8940] <... chdir resumed>) = 0 [pid 8937] <... openat resumed>) = 4 [pid 8940] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8937] ioctl(4, LOOP_SET_FD, 3 [pid 8941] <... mmap resumed>) = 0x7f38d9778000 [pid 8937] <... ioctl resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 8940] <... prctl resumed>) = 0 [pid 8940] setpgid(0, 0 [pid 8937] close(3 [pid 8940] <... setpgid resumed>) = 0 [pid 8940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8937] <... close resumed>) = 0 [pid 8940] <... openat resumed>) = 3 [pid 8937] mkdir("./file0", 0777 [pid 4999] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8940] write(3, "1000", 4 [pid 8937] <... mkdir resumed>) = 0 [pid 8940] <... write resumed>) = 4 [pid 8937] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8940] close(3) = 0 [pid 8940] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4999] lstat("./220/file0", [pid 8940] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8940] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8940] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8943], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8943 [pid 4999] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8940] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8940] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8943 attached [pid 8941] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8943] set_robust_list(0x7f38e1b989e0, 24 [pid 4999] openat(AT_FDCWD, "./220/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8943] <... set_robust_list resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 8943] memfd_create("syzkaller", 0 [pid 4999] fstat(4, [pid 8943] <... memfd_create resumed>) = 3 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8943] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] getdents64(4, [pid 8943] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./220/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./220") = 0 [pid 4999] mkdir("./221", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8944 [ 232.718516][ T8937] loop0: detected capacity change from 0 to 8192 [ 232.745046][ T8937] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.758743][ T8937] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal ./strace-static-x86_64: Process 8944 attached [pid 8944] set_robust_list(0x555556b565e0, 24) = 0 [pid 8944] chdir("./221") = 0 [pid 8944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8944] setpgid(0, 0) = 0 [pid 8943] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8944] write(3, "1000", 4) = 4 [pid 8944] close(3) = 0 [pid 8944] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8944] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8944] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8941] <... write resumed>) = 4194304 [pid 8944] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8941] munmap(0x7f38d9778000, 4194304) = 0 [pid 8944] <... clone resumed>, parent_tid=[8945], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8945 [pid 8941] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 8944] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8941] <... openat resumed>) = 4 [ 232.785109][ T8937] REISERFS (device loop0): using ordered data mode [ 232.798995][ T8937] reiserfs: using flush barriers [ 232.807051][ T8937] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 8944] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8941] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 8945 attached [pid 8945] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8945] memfd_create("syzkaller", 0) = 3 [pid 8945] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8943] <... write resumed>) = 4194304 [pid 8945] <... mmap resumed>) = 0x7f38d9778000 [pid 8943] munmap(0x7f38d9778000, 4194304 [pid 8941] <... ioctl resumed>) = 0 [pid 8943] <... munmap resumed>) = 0 [pid 8943] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8943] ioctl(4, LOOP_SET_FD, 3 [pid 8941] close(3) = 0 [pid 8941] mkdir("./file0", 0777) = 0 [pid 8941] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8943] <... ioctl resumed>) = 0 [pid 8943] close(3) = 0 [pid 8943] mkdir("./file0", 0777) = 0 [pid 8943] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 232.831516][ T8937] REISERFS (device loop0): checking transaction log (loop0) [ 232.839711][ T8941] loop5: detected capacity change from 0 to 8192 [ 232.848150][ T8937] REISERFS (device loop0): Using r5 hash to sort names [ 232.860471][ T8943] loop2: detected capacity change from 0 to 8192 [ 232.870116][ T8937] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 8945] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 8945] munmap(0x7f38d9778000, 4194304) = 0 [pid 8945] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 232.884109][ T8941] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.897407][ T8941] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 232.907331][ T8943] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.907410][ T8937] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 232.922886][ T8945] loop1: detected capacity change from 0 to 8192 [pid 8945] ioctl(4, LOOP_SET_FD, 3 [pid 8937] <... mount resumed>) = 0 [pid 8937] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8945] <... ioctl resumed>) = 0 [pid 8945] close(3) = 0 [pid 8945] mkdir("./file0", 0777) = 0 [pid 8945] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8937] <... openat resumed>) = 3 [pid 8937] chdir("./file0") = 0 [pid 8937] ioctl(4, LOOP_CLR_FD) = 0 [pid 8937] close(4) = 0 [pid 8937] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8937] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8936] <... futex resumed>) = 0 [pid 8936] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8937] <... futex resumed>) = 0 [pid 8936] <... futex resumed>) = 1 [pid 8937] mkdir("./file1", 000 [pid 8936] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8937] <... mkdir resumed>) = 0 [pid 8937] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8936] <... futex resumed>) = 0 [pid 8937] mkdir("./bus", 000 [pid 8936] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8937] <... mkdir resumed>) = 0 [pid 8936] <... futex resumed>) = 0 [pid 8937] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8936] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8937] <... futex resumed>) = 0 [pid 8936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8937] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8936] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 232.930067][ T8943] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 232.937618][ T8941] REISERFS (device loop5): using ordered data mode [ 232.945252][ T8943] REISERFS (device loop2): using ordered data mode [ 232.957086][ T8941] reiserfs: using flush barriers [ 232.958586][ T8943] reiserfs: using flush barriers [ 232.976463][ T8937] overlayfs: upper fs needs to support d_type. [ 232.982731][ T8945] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.987717][ T8943] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 232.995838][ T8941] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 233.011968][ T8937] overlayfs: upper fs does not support tmpfile. [pid 8936] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 8936] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8936] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8936] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8949], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8949 [pid 8936] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8936] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8949 attached [pid 8949] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8949] mkdir(".", 0777) = -1 EEXIST (File exists) [ 233.029724][ T8941] REISERFS (device loop5): checking transaction log (loop5) [ 233.043040][ T8943] REISERFS (device loop2): checking transaction log (loop2) [ 233.045575][ T8945] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 233.051315][ T8943] REISERFS (device loop2): Using r5 hash to sort names [ 233.066753][ T8943] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.067902][ T8941] REISERFS (device loop5): Using r5 hash to sort names [pid 8949] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 8949] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8949] chdir(".") = 0 [pid 8949] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8936] <... futex resumed>) = 0 [pid 8949] <... futex resumed>) = 1 [pid 8949] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8943] <... mount resumed>) = 0 [pid 8943] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8943] chdir("./file0") = 0 [pid 8943] ioctl(4, LOOP_CLR_FD) = 0 [pid 8943] close(4) = 0 [pid 8943] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8940] <... futex resumed>) = 0 [pid 8943] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8940] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8943] <... futex resumed>) = 0 [pid 8940] <... futex resumed>) = 1 [pid 8943] mkdir("./file1", 000 [pid 8940] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8943] <... mkdir resumed>) = 0 [pid 8943] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8940] <... futex resumed>) = 0 [pid 8943] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8940] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8943] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8940] <... futex resumed>) = 0 [pid 8943] mkdir("./bus", 000 [pid 8940] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8937] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8943] <... mkdir resumed>) = 0 [pid 8937] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8943] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8937] <... futex resumed>) = 0 [pid 8936] exit_group(0 [pid 8949] <... futex resumed>) = ? [pid 8949] +++ exited with 0 +++ [pid 8936] <... exit_group resumed>) = ? [ 233.079453][ T8943] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 233.096012][ T8937] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 233.104648][ T8937] overlayfs: failed to resolve './file0': -2 [ 233.119542][ T8945] REISERFS (device loop1): using ordered data mode [ 233.126768][ T8945] reiserfs: using flush barriers [pid 8943] <... futex resumed>) = 1 [pid 8940] <... futex resumed>) = 0 [pid 8940] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8940] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8943] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8937] +++ exited with 0 +++ [pid 8936] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8936, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 4998] umount2("./221", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./221", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./221/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./221/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./221/binderfs") = 0 [ 233.132625][ T8945] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 233.149474][ T8941] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.163585][ T8945] REISERFS (device loop1): checking transaction log (loop1) [ 233.164455][ T8941] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 233.177827][ T8945] REISERFS (device loop1): Using r5 hash to sort names [pid 4998] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8940] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8940] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8940] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8940] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8950], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8950 [pid 8940] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8940] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8941] <... mount resumed>) = 0 [pid 8941] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 8950 attached [pid 8950] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8941] <... openat resumed>) = 3 [pid 8941] chdir("./file0") = 0 [pid 8941] ioctl(4, LOOP_CLR_FD) = 0 [pid 8941] close(4) = 0 [pid 8941] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 233.180289][ T8943] overlayfs: upper fs needs to support d_type. [ 233.187849][ T8945] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.193275][ T8943] overlayfs: upper fs does not support tmpfile. [ 233.212926][ T8943] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 233.221814][ T8943] overlayfs: failed to resolve './file0': -2 [ 233.228333][ T8945] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 8939] <... futex resumed>) = 0 [pid 8941] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8939] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8943] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8939] <... futex resumed>) = 0 [pid 8941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8943] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8941] mkdir("./file1", 000 [pid 8939] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8943] <... futex resumed>) = 0 [pid 8943] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8941] <... mkdir resumed>) = 0 [pid 8950] mkdir(".", 0777 [pid 8945] <... mount resumed>) = 0 [pid 8941] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8950] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8945] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8941] <... futex resumed>) = 1 [pid 8939] <... futex resumed>) = 0 [pid 8941] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8939] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8945] <... openat resumed>) = 3 [pid 8941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8939] <... futex resumed>) = 0 [pid 8941] mkdir("./bus", 000 [pid 8939] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8941] <... mkdir resumed>) = 0 [pid 8941] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8939] <... futex resumed>) = 0 [pid 8941] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8939] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8939] <... futex resumed>) = 0 [pid 8941] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8939] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8950] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8945] chdir("./file0") = 0 [pid 8945] ioctl(4, LOOP_CLR_FD) = 0 [pid 8945] close(4) = 0 [pid 8945] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8944] <... futex resumed>) = 0 [pid 8944] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8944] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8945] <... futex resumed>) = 1 [pid 8945] mkdir("./file1", 000) = 0 [pid 8945] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8944] <... futex resumed>) = 0 [pid 8945] <... futex resumed>) = 1 [pid 8944] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8945] mkdir("./bus", 000 [pid 8944] <... futex resumed>) = 0 [pid 8945] <... mkdir resumed>) = 0 [pid 8944] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8945] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8944] <... futex resumed>) = 0 [pid 8950] <... mount resumed>) = 0 [pid 8945] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8944] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8950] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8944] <... futex resumed>) = 0 [pid 8950] <... openat resumed>) = 4 [pid 8944] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8950] chdir("." [pid 4998] <... umount2 resumed>) = 0 [pid 8950] <... chdir resumed>) = 0 [pid 8950] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8940] <... futex resumed>) = 0 [pid 8950] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8940] exit_group(0 [pid 8950] <... futex resumed>) = ? [pid 8940] <... exit_group resumed>) = ? [pid 8950] +++ exited with 0 +++ [pid 8943] <... futex resumed>) = ? [pid 8943] +++ exited with 0 +++ [pid 8940] +++ exited with 0 +++ [pid 8939] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4998] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8939] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8940, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 8939] <... futex resumed>) = 0 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8939] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... restart_syscall resumed>) = 0 [pid 8939] <... mmap resumed>) = 0x7f38d9b57000 [ 233.243846][ T8941] overlayfs: upper fs needs to support d_type. [ 233.262356][ T8941] overlayfs: upper fs does not support tmpfile. [ 233.270673][ T8945] overlayfs: upper fs needs to support d_type. [ 233.285789][ T8941] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 4998] lstat("./221/file0", [pid 8939] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8939] <... mprotect resumed>) = 0 [pid 4998] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8939] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] umount2("./221", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./221/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8939] <... clone resumed>, parent_tid=[8951], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8951 [pid 5000] openat(AT_FDCWD, "./221", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... openat resumed>) = 4 [pid 8939] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... openat resumed>) = 3 [pid 4998] fstat(4, [pid 8939] <... futex resumed>) = 0 [pid 5000] fstat(3, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8939] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, [pid 5000] getdents64(3, [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] getdents64(4, [pid 5000] umount2("./221/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] close(4 [pid 5000] lstat("./221/binderfs", [pid 4998] <... close resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] rmdir("./221/file0" [pid 5000] unlink("./221/binderfs" [pid 4998] <... rmdir resumed>) = 0 [pid 5000] <... unlink resumed>) = 0 [pid 4998] getdents64(3, [pid 5000] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./221") = 0 [pid 4998] mkdir("./222", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8952 ./strace-static-x86_64: Process 8951 attached ./strace-static-x86_64: Process 8952 attached [pid 8952] set_robust_list(0x555556b565e0, 24) = 0 [pid 8952] chdir("./222") = 0 [pid 8952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8952] setpgid(0, 0 [pid 8951] set_robust_list(0x7f38d9b779e0, 24 [pid 8944] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8951] <... set_robust_list resumed>) = 0 [pid 8944] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8951] mkdir(".", 0777 [pid 8944] <... futex resumed>) = 0 [pid 8952] <... setpgid resumed>) = 0 [pid 8952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8952] write(3, "1000", 4) = 4 [pid 8952] close(3 [pid 8951] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8951] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8952] <... close resumed>) = 0 [pid 8944] <... mmap resumed>) = 0x7f38d9b57000 [pid 8952] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8952] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8952] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8944] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8952] <... mmap resumed>) = 0x7f38e1b78000 [pid 8952] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8952] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8944] <... mprotect resumed>) = 0 [pid 8952] <... clone resumed>, parent_tid=[8953], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8953 [pid 8944] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8952] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8952] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8953 attached [pid 8953] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8944] <... clone resumed>, parent_tid=[8954], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8954 [pid 8944] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8944] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8951] <... mount resumed>) = 0 [pid 8951] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8953] memfd_create("syzkaller", 0) = 3 [pid 8953] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8951] <... openat resumed>) = 4 [pid 8951] chdir(".") = 0 [pid 8951] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8941] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8941] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8941] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8953] <... mmap resumed>) = 0x7f38d9778000 [pid 8939] <... futex resumed>) = 0 [pid 8951] <... futex resumed>) = 1 [pid 8939] exit_group(0 [pid 8941] <... futex resumed>) = ? [pid 8939] <... exit_group resumed>) = ? [pid 8941] +++ exited with 0 +++ [pid 8951] +++ exited with 0 +++ [pid 8939] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8939, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5003] umount2("./221", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./221", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./221/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./221/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./221/binderfs") = 0 [pid 5003] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 8954 attached [pid 8954] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8954] mkdir(".", 0777) = -1 EEXIST (File exists) [ 233.296153][ T8941] overlayfs: failed to resolve './file0': -2 [ 233.301266][ T8945] overlayfs: upper fs does not support tmpfile. [ 233.318454][ T8945] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 8954] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 8954] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8954] chdir(".") = 0 [pid 8954] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8944] <... futex resumed>) = 0 [pid 8954] <... futex resumed>) = 1 [pid 8954] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] <... umount2 resumed>) = 0 [pid 8945] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8945] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8944] exit_group(0 [pid 8945] <... futex resumed>) = 0 [pid 8954] <... futex resumed>) = ? [pid 8944] <... exit_group resumed>) = ? [pid 8954] +++ exited with 0 +++ [pid 8945] +++ exited with 0 +++ [pid 8944] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8944, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 4999] umount2("./221", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./221", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./221/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./221/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./221/binderfs") = 0 [pid 4999] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./221/file0", [pid 5003] <... umount2 resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 233.351292][ T8945] overlayfs: failed to resolve './file0': -2 [pid 5003] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./221/file0", [pid 5000] openat(AT_FDCWD, "./221/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] fstat(4, [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] openat(AT_FDCWD, "./221/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] getdents64(4, [pid 8953] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5003] <... openat resumed>) = 4 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] fstat(4, [pid 5000] getdents64(4, [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] getdents64(4, [pid 5000] close(4 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... close resumed>) = 0 [pid 5003] getdents64(4, [pid 5000] rmdir("./221/file0" [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5003] close(4 [pid 5000] getdents64(3, [pid 5003] <... close resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] rmdir("./221/file0" [pid 5000] close(3 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 5003] getdents64(3, [pid 5000] rmdir("./221" [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5003] close(3 [pid 5000] mkdir("./222", 0777 [pid 5003] <... close resumed>) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 5003] rmdir("./221" [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5003] <... rmdir resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5003] mkdir("./222", 0777 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 5003] <... mkdir resumed>) = 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5000] close(3 [pid 5003] <... openat resumed>) = 3 [pid 5000] <... close resumed>) = 0 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] close(3 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 8955 [pid 5003] <... close resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8956 ./strace-static-x86_64: Process 8956 attached [pid 8956] set_robust_list(0x555556b565e0, 24) = 0 [pid 8956] chdir("./222") = 0 [pid 8956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8956] setpgid(0, 0) = 0 [pid 8956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8956] write(3, "1000", 4) = 4 [pid 8956] close(3) = 0 [pid 8956] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8956] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8956] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8956] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8957], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8957 [pid 8956] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8956] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8955 attached ./strace-static-x86_64: Process 8957 attached [pid 8955] set_robust_list(0x555556b565e0, 24 [pid 8957] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8955] <... set_robust_list resumed>) = 0 [pid 8957] memfd_create("syzkaller", 0 [pid 8955] chdir("./222") = 0 [pid 8957] <... memfd_create resumed>) = 3 [pid 8955] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8957] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8955] <... prctl resumed>) = 0 [pid 8955] setpgid(0, 0 [pid 8957] <... mmap resumed>) = 0x7f38d9778000 [pid 8955] <... setpgid resumed>) = 0 [pid 8955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8955] write(3, "1000", 4) = 4 [pid 8955] close(3) = 0 [pid 8955] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8955] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8955] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8955] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8955] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8958], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8958 [pid 8955] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8955] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8958 attached [pid 4999] <... umount2 resumed>) = 0 [pid 8958] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8958] memfd_create("syzkaller", 0 [pid 4999] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8958] <... memfd_create resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8958] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] lstat("./221/file0", [pid 8958] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8958] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8957] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8953] <... write resumed>) = 4194304 [pid 8953] munmap(0x7f38d9778000, 4194304) = 0 [pid 4999] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8953] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8953] ioctl(4, LOOP_SET_FD, 3 [pid 4999] openat(AT_FDCWD, "./221/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./221/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./221") = 0 [pid 8953] <... ioctl resumed>) = 0 [pid 8953] close(3) = 0 [pid 8953] mkdir("./file0", 0777 [pid 4999] mkdir("./222", 0777 [pid 8953] <... mkdir resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 8953] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8960 ./strace-static-x86_64: Process 8960 attached [pid 8958] <... write resumed>) = 4194304 [pid 8960] set_robust_list(0x555556b565e0, 24 [ 233.507005][ T8953] loop0: detected capacity change from 0 to 8192 [ 233.538214][ T8953] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 8958] munmap(0x7f38d9778000, 4194304 [pid 8960] <... set_robust_list resumed>) = 0 [pid 8958] <... munmap resumed>) = 0 [pid 8960] chdir("./222") = 0 [pid 8960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8960] setpgid(0, 0) = 0 [pid 8960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8960] write(3, "1000", 4) = 4 [pid 8960] close(3) = 0 [pid 8960] symlink("/dev/binderfs", "./binderfs" [pid 8958] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8960] <... symlink resumed>) = 0 [pid 8958] <... openat resumed>) = 4 [pid 8960] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8958] ioctl(4, LOOP_SET_FD, 3 [pid 8960] <... futex resumed>) = 0 [pid 8957] <... write resumed>) = 4194304 [pid 8957] munmap(0x7f38d9778000, 4194304) = 0 [pid 8957] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 8957] ioctl(4, LOOP_SET_FD, 3 [pid 8960] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8958] <... ioctl resumed>) = 0 [pid 8960] <... mmap resumed>) = 0x7f38e1b78000 [pid 8960] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8960] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8961], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8961 [pid 8960] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8960] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8958] close(3) = 0 [pid 8958] mkdir("./file0", 0777) = 0 [pid 8958] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 8961 attached [pid 8961] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8961] memfd_create("syzkaller", 0) = 3 [pid 8961] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8957] <... ioctl resumed>) = 0 [pid 8957] close(3) = 0 [pid 8957] mkdir("./file0", 0777) = 0 [ 233.551620][ T8953] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 233.561774][ T8953] REISERFS (device loop0): using ordered data mode [ 233.562661][ T8958] loop2: detected capacity change from 0 to 8192 [ 233.568562][ T8953] reiserfs: using flush barriers [ 233.573975][ T8957] loop5: detected capacity change from 0 to 8192 [ 233.579696][ T8958] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 8957] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 233.580123][ T8953] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 233.595428][ T8958] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 233.599693][ T8953] REISERFS (device loop0): checking transaction log (loop0) [ 233.624786][ T8957] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 233.644722][ T8958] REISERFS (device loop2): using ordered data mode [ 233.644734][ T8958] reiserfs: using flush barriers [ 233.656990][ T8957] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 233.666707][ T8953] REISERFS (device loop0): Using r5 hash to sort names [ 233.667047][ T8957] REISERFS (device loop5): using ordered data mode [ 233.680540][ T8953] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.680984][ T8957] reiserfs: using flush barriers [ 233.693243][ T8953] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 8961] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 8953] <... mount resumed>) = 0 [pid 8953] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8953] chdir("./file0") = 0 [pid 8953] ioctl(4, LOOP_CLR_FD) = 0 [pid 8953] close(4) = 0 [pid 8953] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8953] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8961] munmap(0x7f38d9778000, 4194304) = 0 [pid 8961] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8961] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8961] close(3) = 0 [pid 8952] <... futex resumed>) = 0 [pid 8952] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8961] mkdir("./file0", 0777) = 0 [ 233.700455][ T8958] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 233.723539][ T8961] loop1: detected capacity change from 0 to 8192 [ 233.731738][ T8957] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 233.742099][ T8958] REISERFS (device loop2): checking transaction log (loop2) [pid 8961] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8953] <... futex resumed>) = 0 [pid 8952] <... futex resumed>) = 1 [pid 8953] mkdir("./file1", 000) = 0 [pid 8953] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8953] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8952] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 8952] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8953] <... futex resumed>) = 0 [pid 8952] <... futex resumed>) = 1 [pid 8953] mkdir("./bus", 000 [pid 8952] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8953] <... mkdir resumed>) = 0 [pid 8953] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8952] <... futex resumed>) = 0 [pid 8953] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8952] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 233.753287][ T8957] REISERFS (device loop5): checking transaction log (loop5) [ 233.756213][ T8958] REISERFS (device loop2): Using r5 hash to sort names [ 233.769883][ T8961] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 233.770005][ T8958] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.784933][ T8961] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 8952] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8958] <... mount resumed>) = 0 [pid 8952] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8952] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8952] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8952] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8952] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8965], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8965 [pid 8952] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8952] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 233.796150][ T8958] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 233.805533][ T8953] overlayfs: upper fs needs to support d_type. [ 233.834086][ T8961] REISERFS (device loop1): using ordered data mode [ 233.846295][ T8961] reiserfs: using flush barriers [ 233.846306][ T8957] REISERFS (device loop5): Using r5 hash to sort names [pid 8958] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 8965 attached [pid 8965] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8965] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8965] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8958] <... openat resumed>) = 3 [ 233.851933][ T8961] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 233.863355][ T8957] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.874581][ T8961] REISERFS (device loop1): checking transaction log (loop1) [ 233.888877][ T8953] overlayfs: upper fs does not support tmpfile. [ 233.894823][ T8961] REISERFS (device loop1): Using r5 hash to sort names [pid 8958] chdir("./file0") = 0 [pid 8958] ioctl(4, LOOP_CLR_FD) = 0 [pid 8965] <... mount resumed>) = 0 [pid 8965] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8965] chdir(".") = 0 [pid 8965] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8952] <... futex resumed>) = 0 [pid 8965] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8958] close(4 [pid 8957] <... mount resumed>) = 0 [pid 8957] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8957] chdir("./file0") = 0 [pid 8957] ioctl(4, LOOP_CLR_FD) = 0 [pid 8957] close(4) = 0 [pid 8957] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8956] <... futex resumed>) = 0 [pid 8956] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8956] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8958] <... close resumed>) = 0 [pid 8957] <... futex resumed>) = 1 [pid 8957] mkdir("./file1", 000) = 0 [pid 8957] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8956] <... futex resumed>) = 0 [pid 8956] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8956] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8957] <... futex resumed>) = 1 [ 233.902676][ T8957] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 233.917156][ T8961] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.924586][ T8953] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 233.929961][ T8961] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 8957] mkdir("./bus", 000) = 0 [pid 8961] <... mount resumed>) = 0 [pid 8958] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8955] <... futex resumed>) = 0 [pid 8958] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8955] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8955] <... futex resumed>) = 0 [pid 8958] mkdir("./file1", 000 [pid 8955] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8958] <... mkdir resumed>) = 0 [pid 8957] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8958] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8957] <... futex resumed>) = 1 [pid 8956] <... futex resumed>) = 0 [pid 8958] <... futex resumed>) = 1 [pid 8955] <... futex resumed>) = 0 [pid 8957] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8956] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8958] mkdir("./bus", 000 [pid 8955] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8956] <... futex resumed>) = 0 [pid 8956] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8955] <... futex resumed>) = 0 [pid 8958] <... mkdir resumed>) = 0 [pid 8955] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8958] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8953] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8958] <... futex resumed>) = 1 [pid 8955] <... futex resumed>) = 0 [pid 8958] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8955] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8953] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8955] <... futex resumed>) = 0 [pid 8958] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8955] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8952] exit_group(0 [pid 8965] <... futex resumed>) = ? [pid 8952] <... exit_group resumed>) = ? [pid 8965] +++ exited with 0 +++ [pid 8961] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8961] chdir("./file0") = 0 [pid 8961] ioctl(4, LOOP_CLR_FD) = 0 [pid 8961] close(4) = 0 [pid 8961] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8961] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8960] <... futex resumed>) = 0 [pid 8953] <... futex resumed>) = ? [pid 8960] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8953] +++ exited with 0 +++ [pid 8952] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8952, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 4998] umount2("./222", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./222", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, [pid 8961] <... futex resumed>) = 0 [pid 8960] <... futex resumed>) = 1 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8961] mkdir("./file1", 000) = 0 [pid 8960] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8961] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8960] <... futex resumed>) = 0 [pid 8960] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8961] mkdir("./bus", 000 [pid 8960] <... futex resumed>) = 0 [pid 8961] <... mkdir resumed>) = 0 [pid 8960] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8961] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8961] <... futex resumed>) = 0 [pid 8960] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8961] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8960] <... futex resumed>) = 0 [ 233.955782][ T8953] overlayfs: failed to resolve './file0': -2 [ 233.969519][ T8957] overlayfs: upper fs needs to support d_type. [ 233.978371][ T8958] overlayfs: upper fs needs to support d_type. [ 233.980880][ T8957] overlayfs: upper fs does not support tmpfile. [ 233.984896][ T8958] overlayfs: upper fs does not support tmpfile. [ 233.992540][ T8957] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 8960] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8956] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8956] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 8956] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8956] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8956] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8966], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8966 [pid 8956] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8956] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./222/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./222/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./222/binderfs") = 0 [pid 4998] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 8966 attached [pid 8966] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8955] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8966] mkdir(".", 0777 [ 234.012224][ T8961] overlayfs: upper fs needs to support d_type. [ 234.036821][ T8958] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 234.037822][ T8957] overlayfs: failed to resolve './file0': -2 [ 234.045368][ T8958] overlayfs: failed to resolve './file0': -2 [pid 8955] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8966] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8955] <... futex resumed>) = 0 [pid 8966] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8955] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8955] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8955] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8967], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8967 [pid 8955] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8955] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8967 attached [pid 8960] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8967] set_robust_list(0x7f38d9b779e0, 24 [pid 8966] <... mount resumed>) = 0 [pid 8960] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8967] <... set_robust_list resumed>) = 0 [pid 8966] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8960] <... futex resumed>) = 0 [pid 8967] mkdir(".", 0777 [pid 8966] <... openat resumed>) = 4 [pid 8960] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8966] chdir("." [pid 8960] <... mmap resumed>) = 0x7f38d9b57000 [pid 8967] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8966] <... chdir resumed>) = 0 [pid 8967] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8966] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8960] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8966] <... futex resumed>) = 1 [pid 8960] <... mprotect resumed>) = 0 [pid 8956] <... futex resumed>) = 0 [pid 8966] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8960] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 8968 attached [pid 8967] <... mount resumed>) = 0 [pid 8968] set_robust_list(0x7f38d9b779e0, 24 [pid 8967] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8960] <... clone resumed>, parent_tid=[8968], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8968 [pid 8968] <... set_robust_list resumed>) = 0 [pid 8967] <... openat resumed>) = 4 [pid 8960] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8968] mkdir(".", 0777 [pid 8967] chdir("." [pid 8960] <... futex resumed>) = 0 [pid 8958] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8968] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8967] <... chdir resumed>) = 0 [pid 8960] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8958] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8968] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8967] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8958] <... futex resumed>) = 0 [pid 8968] <... mount resumed>) = 0 [pid 8967] <... futex resumed>) = 1 [pid 8958] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8955] <... futex resumed>) = 0 [pid 8968] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8967] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8968] <... openat resumed>) = 4 [pid 8955] exit_group(0 [pid 8968] chdir("." [pid 8967] <... futex resumed>) = ? [pid 8961] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8958] <... futex resumed>) = ? [pid 8955] <... exit_group resumed>) = ? [pid 8968] <... chdir resumed>) = 0 [pid 8967] +++ exited with 0 +++ [pid 8958] +++ exited with 0 +++ [pid 8957] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8961] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8957] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8961] <... futex resumed>) = 0 [pid 8957] <... futex resumed>) = 0 [pid 8961] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8957] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8968] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8956] exit_group(0 [pid 8955] +++ exited with 0 +++ [pid 8968] <... futex resumed>) = 1 [pid 8966] <... futex resumed>) = ? [pid 8960] <... futex resumed>) = 0 [pid 8957] <... futex resumed>) = ? [pid 8956] <... exit_group resumed>) = ? [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8955, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 8966] +++ exited with 0 +++ [pid 8960] exit_group(0 [pid 8957] +++ exited with 0 +++ [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 8956] +++ exited with 0 +++ [pid 8961] <... futex resumed>) = ? [pid 8960] <... exit_group resumed>) = ? [pid 5000] umount2("./222", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8968] +++ exited with 0 +++ [pid 8961] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8956, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 5000] openat(AT_FDCWD, "./222", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... restart_syscall resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./222", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(3, [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] openat(AT_FDCWD, "./222", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] umount2("./222/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... openat resumed>) = 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8960] +++ exited with 0 +++ [pid 5003] fstat(3, [pid 5000] lstat("./222/binderfs", [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8960, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5003] getdents64(3, [pid 5000] unlink("./222/binderfs" [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] <... unlink resumed>) = 0 [pid 5003] umount2("./222/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./222/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./222/binderfs" [pid 4999] umount2("./222", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... unlink resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] openat(AT_FDCWD, "./222", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./222/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./222/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./222/binderfs") = 0 [pid 4999] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [ 234.051563][ T8961] overlayfs: upper fs does not support tmpfile. [ 234.074957][ T8961] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 234.084240][ T8961] overlayfs: failed to resolve './file0': -2 [pid 4998] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./222/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./222/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./222/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./222/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./222/file0") = 0 [pid 5000] getdents64(3, [pid 4998] <... openat resumed>) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./222/file0" [pid 5000] <... close resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./222" [pid 5000] rmdir("./222" [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./223", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./223", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 8969 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 8970 ./strace-static-x86_64: Process 8969 attached [pid 8969] set_robust_list(0x555556b565e0, 24) = 0 [pid 8969] chdir("./223") = 0 [pid 8969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8969] setpgid(0, 0) = 0 [pid 8969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 8970 attached [pid 8970] set_robust_list(0x555556b565e0, 24) = 0 [pid 8970] chdir("./223" [pid 5003] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 8970] <... chdir resumed>) = 0 [pid 5003] lstat("./222/file0", [pid 8970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8970] setpgid(0, 0 [pid 5003] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 8970] <... setpgid resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./222/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 8970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8970] <... openat resumed>) = 3 [pid 8970] write(3, "1000", 4 [pid 5003] getdents64(4, [pid 8970] <... write resumed>) = 4 [pid 8970] close(3 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 8969] <... openat resumed>) = 3 [pid 8970] <... close resumed>) = 0 [pid 5003] getdents64(4, [pid 8970] symlink("/dev/binderfs", "./binderfs" [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 8970] <... symlink resumed>) = 0 [pid 5003] rmdir("./222/file0" [pid 8970] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8969] write(3, "1000", 4 [pid 5003] <... rmdir resumed>) = 0 [pid 8970] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] getdents64(3, [pid 8970] <... mmap resumed>) = 0x7f38e1b78000 [pid 8970] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 8970] <... mprotect resumed>) = 0 [pid 8969] <... write resumed>) = 4 [pid 5003] close(3 [pid 8970] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8969] close(3 [pid 5003] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 8969] <... close resumed>) = 0 [pid 5003] rmdir("./222"./strace-static-x86_64: Process 8971 attached [pid 8970] <... clone resumed>, parent_tid=[8971], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8971 [pid 8969] symlink("/dev/binderfs", "./binderfs" [pid 5003] <... rmdir resumed>) = 0 [pid 4999] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8970] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8969] <... symlink resumed>) = 0 [pid 5003] mkdir("./223", 0777 [pid 8970] <... futex resumed>) = 0 [pid 8969] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... mkdir resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8970] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8969] <... futex resumed>) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] lstat("./222/file0", [pid 8969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... openat resumed>) = 3 [pid 8969] <... mmap resumed>) = 0x7f38e1b78000 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 8969] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8969] <... mprotect resumed>) = 0 [pid 5003] close(3 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 8971] set_robust_list(0x7f38e1b989e0, 24 [pid 5003] <... close resumed>) = 0 [pid 4999] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8971] <... set_robust_list resumed>) = 0 [pid 8969] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 8971] memfd_create("syzkaller", 0 [pid 4999] openat(AT_FDCWD, "./222/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8971] <... memfd_create resumed>) = 3 [pid 8969] <... clone resumed>, parent_tid=[8973], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8973 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 8972 [pid 4999] <... openat resumed>) = 4 [pid 8971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8969] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] fstat(4, [pid 8971] <... mmap resumed>) = 0x7f38d9778000 [pid 8969] <... futex resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 8973 attached ./strace-static-x86_64: Process 8972 attached [pid 8969] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] getdents64(4, [pid 8973] set_robust_list(0x7f38e1b989e0, 24 [pid 8972] set_robust_list(0x555556b565e0, 24 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 8973] <... set_robust_list resumed>) = 0 [pid 8972] <... set_robust_list resumed>) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 8973] memfd_create("syzkaller", 0 [pid 8972] chdir("./223" [pid 4999] close(4 [pid 8973] <... memfd_create resumed>) = 3 [pid 8972] <... chdir resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 8973] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8972] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] rmdir("./222/file0" [pid 8973] <... mmap resumed>) = 0x7f38d9778000 [pid 8972] <... prctl resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./222") = 0 [pid 4999] mkdir("./223", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8972] setpgid(0, 0 [pid 4999] <... openat resumed>) = 3 [pid 8972] <... setpgid resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 8972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8972] <... openat resumed>) = 3 [pid 4999] close(3 [pid 8972] write(3, "1000", 4 [pid 4999] <... close resumed>) = 0 [pid 8972] <... write resumed>) = 4 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8972] close(3) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 8974 [pid 8972] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8972] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8972] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8972] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8972] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8975], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8975 [pid 8972] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8972] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8974 attached [pid 8974] set_robust_list(0x555556b565e0, 24) = 0 [pid 8974] chdir("./223" [pid 8971] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8974] <... chdir resumed>) = 0 [pid 8974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 8975 attached [pid 8974] setpgid(0, 0 [pid 8975] set_robust_list(0x7f38e1b989e0, 24 [pid 8974] <... setpgid resumed>) = 0 [pid 8975] <... set_robust_list resumed>) = 0 [pid 8974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8975] memfd_create("syzkaller", 0 [pid 8974] write(3, "1000", 4 [pid 8975] <... memfd_create resumed>) = 3 [pid 8974] <... write resumed>) = 4 [pid 8975] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8974] close(3 [pid 8975] <... mmap resumed>) = 0x7f38d9778000 [pid 8974] <... close resumed>) = 0 [pid 8974] symlink("/dev/binderfs", "./binderfs") = 0 [pid 8974] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 8974] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8974] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8976], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8976 [pid 8974] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8973] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8974] <... futex resumed>) = 0 [pid 8974] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8976 attached [pid 8976] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8976] memfd_create("syzkaller", 0) = 3 [pid 8976] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 8976] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8975] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8971] <... write resumed>) = 4194304 [pid 8971] munmap(0x7f38d9778000, 4194304) = 0 [pid 8971] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8971] ioctl(4, LOOP_SET_FD, 3 [pid 8973] <... write resumed>) = 4194304 [pid 8973] munmap(0x7f38d9778000, 4194304 [pid 8976] <... write resumed>) = 4194304 [pid 8976] munmap(0x7f38d9778000, 4194304 [pid 8973] <... munmap resumed>) = 0 [pid 8973] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8973] ioctl(4, LOOP_SET_FD, 3 [pid 8976] <... munmap resumed>) = 0 [pid 8976] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8976] ioctl(4, LOOP_SET_FD, 3 [pid 8973] <... ioctl resumed>) = 0 [pid 8973] close(3 [pid 8971] <... ioctl resumed>) = 0 [pid 8973] <... close resumed>) = 0 [pid 8973] mkdir("./file0", 0777 [pid 8971] close(3 [pid 8973] <... mkdir resumed>) = 0 [pid 8971] <... close resumed>) = 0 [pid 8973] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8971] mkdir("./file0", 0777 [pid 8976] <... ioctl resumed>) = 0 [pid 8976] close(3 [pid 8971] <... mkdir resumed>) = 0 [pid 8971] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8976] <... close resumed>) = 0 [pid 8976] mkdir("./file0", 0777) = 0 [pid 8976] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8975] <... write resumed>) = 4194304 [pid 8975] munmap(0x7f38d9778000, 4194304) = 0 [pid 8975] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 234.352917][ T8971] loop2: detected capacity change from 0 to 8192 [ 234.367566][ T8973] loop0: detected capacity change from 0 to 8192 [ 234.372633][ T8976] loop1: detected capacity change from 0 to 8192 [ 234.389635][ T8971] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 8975] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8975] close(3) = 0 [pid 8975] mkdir("./file0", 0777) = 0 [ 234.396154][ T8975] loop5: detected capacity change from 0 to 8192 [ 234.402702][ T8973] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 234.414071][ T8971] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 234.422373][ T8973] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 234.432725][ T8971] REISERFS (device loop2): using ordered data mode [ 234.440580][ T8973] REISERFS (device loop0): using ordered data mode [ 234.446991][ T8971] reiserfs: using flush barriers [ 234.447725][ T8971] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 234.453591][ T8976] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 234.458708][ T8971] REISERFS (device loop2): checking transaction log (loop2) [ 234.475445][ T8973] reiserfs: using flush barriers [ 234.500639][ T8971] REISERFS (device loop2): Using r5 hash to sort names [ 234.500899][ T8975] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 234.507648][ T8971] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 234.521422][ T8976] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 234.533292][ T8971] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 8975] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8971] <... mount resumed>) = 0 [ 234.543126][ T8975] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 234.552234][ T8973] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 234.561208][ T8976] REISERFS (device loop1): using ordered data mode [ 234.577340][ T8973] REISERFS (device loop0): checking transaction log (loop0) [ 234.583978][ T8975] REISERFS (device loop5): using ordered data mode [ 234.591609][ T8973] REISERFS (device loop0): Using r5 hash to sort names [pid 8971] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8971] chdir("./file0") = 0 [pid 8971] ioctl(4, LOOP_CLR_FD) = 0 [pid 8971] close(4) = 0 [pid 8971] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8970] <... futex resumed>) = 0 [pid 8971] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8970] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8970] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8971] mkdir("./file1", 000) = 0 [ 234.597847][ T8975] reiserfs: using flush barriers [ 234.604587][ T8973] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 234.609594][ T8976] reiserfs: using flush barriers [ 234.629385][ T8975] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 8971] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8970] <... futex resumed>) = 0 [pid 8970] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8970] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8973] <... mount resumed>) = 0 [pid 8971] mkdir("./bus", 000 [pid 8973] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8973] chdir("./file0") = 0 [pid 8973] ioctl(4, LOOP_CLR_FD) = 0 [pid 8973] close(4) = 0 [pid 8973] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8969] <... futex resumed>) = 0 [pid 8973] mkdir("./file1", 000 [pid 8969] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8973] <... mkdir resumed>) = 0 [pid 8969] <... futex resumed>) = 0 [pid 8973] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8969] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8973] <... futex resumed>) = 0 [pid 8969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8973] mkdir("./bus", 000 [pid 8969] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8973] <... mkdir resumed>) = 0 [pid 8969] <... futex resumed>) = 0 [pid 8973] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8969] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8973] <... futex resumed>) = 0 [pid 8969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8973] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8969] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8971] <... mkdir resumed>) = 0 [pid 8969] <... futex resumed>) = 0 [ 234.648842][ T8976] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 234.658531][ T8973] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 234.666569][ T8975] REISERFS (device loop5): checking transaction log (loop5) [ 234.675464][ T8976] REISERFS (device loop1): checking transaction log (loop1) [ 234.691230][ T8973] overlayfs: upper fs needs to support d_type. [pid 8969] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8971] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8970] <... futex resumed>) = 0 [pid 8971] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8970] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 234.699074][ T8975] REISERFS (device loop5): Using r5 hash to sort names [ 234.699483][ T8973] overlayfs: upper fs does not support tmpfile. [ 234.712713][ T8976] REISERFS (device loop1): Using r5 hash to sort names [ 234.720849][ T8975] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 234.720870][ T8971] overlayfs: upper fs needs to support d_type. [ 234.739416][ T8975] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 8970] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8969] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8969] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8969] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8970] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8969] <... mprotect resumed>) = 0 [pid 8970] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 8969] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8970] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8970] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8969] <... clone resumed>, parent_tid=[8981], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8981 [pid 8970] <... futex resumed>) = 0 [pid 8969] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8970] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8969] <... futex resumed>) = 0 [pid 8970] <... mmap resumed>) = 0x7f38d9b57000 [pid 8969] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8970] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8970] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8982], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8982 [pid 8970] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8970] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8982 attached [pid 8982] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8982] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8982] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, ""./strace-static-x86_64: Process 8981 attached [pid 8981] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8981] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8981] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8982] <... mount resumed>) = 0 [pid 8982] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8981] <... mount resumed>) = 0 [pid 8982] chdir("." [pid 8976] <... mount resumed>) = 0 [pid 8975] <... mount resumed>) = 0 [pid 8982] <... chdir resumed>) = 0 [pid 8981] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8975] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8982] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8981] <... openat resumed>) = 4 [pid 8975] <... openat resumed>) = 3 [pid 8982] <... futex resumed>) = 1 [pid 8981] chdir("." [pid 8975] chdir("./file0" [pid 8970] <... futex resumed>) = 0 [pid 8982] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8981] <... chdir resumed>) = 0 [pid 8975] <... chdir resumed>) = 0 [ 234.740250][ T8976] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 234.762302][ T8973] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 234.770413][ T8971] overlayfs: upper fs does not support tmpfile. [ 234.779333][ T8973] overlayfs: failed to resolve './file0': -2 [ 234.786486][ T8971] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 234.786742][ T8976] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 8981] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8975] ioctl(4, LOOP_CLR_FD [pid 8981] <... futex resumed>) = 1 [pid 8975] <... ioctl resumed>) = 0 [pid 8969] <... futex resumed>) = 0 [pid 8981] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8975] close(4) = 0 [pid 8975] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8972] <... futex resumed>) = 0 [pid 8975] mkdir("./file1", 000 [pid 8972] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8975] <... mkdir resumed>) = 0 [pid 8972] <... futex resumed>) = 0 [pid 8975] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8972] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8975] <... futex resumed>) = 0 [pid 8972] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8975] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8972] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8972] <... futex resumed>) = 0 [pid 8975] mkdir("./bus", 000 [pid 8972] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8975] <... mkdir resumed>) = 0 [pid 8975] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8972] <... futex resumed>) = 0 [pid 8975] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8972] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8972] <... futex resumed>) = 0 [pid 8975] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8972] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8976] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8976] chdir("./file0") = 0 [pid 8976] ioctl(4, LOOP_CLR_FD) = 0 [pid 8976] close(4 [pid 8973] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8973] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8973] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8976] <... close resumed>) = 0 [pid 8976] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8974] <... futex resumed>) = 0 [pid 8974] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8974] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8976] <... futex resumed>) = 1 [pid 8976] mkdir("./file1", 000) = 0 [pid 8976] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8974] <... futex resumed>) = 0 [pid 8974] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8974] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8976] <... futex resumed>) = 1 [pid 8976] mkdir("./bus", 000) = 0 [pid 8976] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8974] <... futex resumed>) = 0 [pid 8974] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8974] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8976] <... futex resumed>) = 1 [pid 8976] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8969] exit_group(0 [pid 8981] <... futex resumed>) = ? [pid 8973] <... futex resumed>) = ? [pid 8969] <... exit_group resumed>) = ? [pid 8981] +++ exited with 0 +++ [pid 8973] +++ exited with 0 +++ [pid 8969] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8969, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 8971] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8971] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8970] exit_group(0) = ? [pid 8982] <... futex resumed>) = ? [ 234.794375][ T8971] overlayfs: failed to resolve './file0': -2 [ 234.816242][ T8975] overlayfs: upper fs needs to support d_type. [ 234.824471][ T8975] overlayfs: upper fs does not support tmpfile. [ 234.836000][ T8976] overlayfs: upper fs needs to support d_type. [ 234.843350][ T8976] overlayfs: upper fs does not support tmpfile. [pid 8982] +++ exited with 0 +++ [pid 8971] +++ exited with 0 +++ [pid 8970] +++ exited with 0 +++ [pid 8972] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8970, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4998] umount2("./223", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... restart_syscall resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./223", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] umount2("./223", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] fstat(3, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] openat(AT_FDCWD, "./223", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] getdents64(3, [pid 5000] <... openat resumed>) = 3 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] fstat(3, [pid 4998] umount2("./223/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] getdents64(3, [pid 4998] lstat("./223/binderfs", [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] umount2("./223/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] unlink("./223/binderfs" [pid 8972] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... unlink resumed>) = 0 [pid 8972] <... futex resumed>) = 0 [pid 8972] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8972] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8972] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8983], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8983 [pid 8972] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8972] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8983 attached [pid 8983] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8983] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8983] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8974] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8974] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8974] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8974] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] lstat("./223/binderfs", [pid 4998] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8974] <... clone resumed>, parent_tid=[8984], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8984 [pid 8974] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8974] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./223/binderfs") = 0 [pid 5000] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8983] <... mount resumed>) = 0 [pid 8983] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8983] chdir(".") = 0 [pid 8983] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8972] <... futex resumed>) = 0 [pid 8983] <... futex resumed>) = 1 [pid 8983] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 8984 attached [pid 8984] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8984] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8984] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 8984] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8984] chdir(".") = 0 [pid 8984] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8974] <... futex resumed>) = 0 [pid 8984] <... futex resumed>) = 1 [pid 8984] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8976] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8976] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8974] exit_group(0) = ? [pid 8976] +++ exited with 0 +++ [pid 8984] <... futex resumed>) = ? [pid 8984] +++ exited with 0 +++ [pid 8974] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8974, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./223", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./223", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./223/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./223/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./223/binderfs") = 0 [pid 4999] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8975] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8975] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8975] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8972] exit_group(0 [pid 8983] <... futex resumed>) = ? [pid 8972] <... exit_group resumed>) = ? [pid 8983] +++ exited with 0 +++ [ 234.852395][ T8975] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 234.853827][ T8976] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 234.863039][ T8975] overlayfs: failed to resolve './file0': -2 [ 234.868043][ T8976] overlayfs: failed to resolve './file0': -2 [pid 8975] <... futex resumed>) = ? [pid 8975] +++ exited with 0 +++ [pid 8972] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8972, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5003] umount2("./223", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./223", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./223/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./223/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./223/binderfs") = 0 [pid 5003] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./223/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./223/file0", [pid 5000] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./223/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... openat resumed>) = 4 [pid 4999] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] openat(AT_FDCWD, "./223/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] getdents64(4, [pid 5000] close(4 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./223/file0") = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./223/file0" [pid 4998] <... umount2 resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 4998] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 4999] getdents64(3, [pid 5000] rmdir("./223" [pid 5003] <... umount2 resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] lstat("./223/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./223/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./223/file0" [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] mkdir("./224", 0777 [pid 4998] <... rmdir resumed>) = 0 [pid 4999] close(3 [pid 5003] lstat("./223/file0", [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... close resumed>) = 0 [pid 5003] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] rmdir("./223" [pid 5003] openat(AT_FDCWD, "./223/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... openat resumed>) = 3 [pid 4998] rmdir("./223" [pid 5003] <... openat resumed>) = 4 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4999] <... rmdir resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5003] fstat(4, [pid 4998] mkdir("./224", 0777 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] mkdir("./224", 0777 [pid 4998] <... mkdir resumed>) = 0 [pid 5003] getdents64(4, [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] <... mkdir resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] close(3 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4998] close(3 [pid 5003] getdents64(4, [pid 5000] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5003] close(4) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] rmdir("./223/file0") = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 8985 [pid 4999] close(3 [pid 5003] getdents64(3, [pid 4999] <... close resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] close(3) = 0 [pid 5003] rmdir("./223" [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 8986 [pid 5003] <... rmdir resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 5003] mkdir("./224", 0777 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] <... mkdir resumed>) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5003] close(3) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 8987 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 8988 ./strace-static-x86_64: Process 8986 attached [pid 8986] set_robust_list(0x555556b565e0, 24./strace-static-x86_64: Process 8987 attached ./strace-static-x86_64: Process 8985 attached [pid 8987] set_robust_list(0x555556b565e0, 24 [pid 8986] <... set_robust_list resumed>) = 0 [pid 8987] <... set_robust_list resumed>) = 0 [pid 8985] set_robust_list(0x555556b565e0, 24 [pid 8986] chdir("./224"./strace-static-x86_64: Process 8988 attached [pid 8987] chdir("./224" [pid 8986] <... chdir resumed>) = 0 [pid 8985] <... set_robust_list resumed>) = 0 [pid 8987] <... chdir resumed>) = 0 [pid 8986] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8985] chdir("./224" [pid 8988] set_robust_list(0x555556b565e0, 24 [pid 8987] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8986] <... prctl resumed>) = 0 [pid 8985] <... chdir resumed>) = 0 [pid 8987] <... prctl resumed>) = 0 [pid 8985] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8988] <... set_robust_list resumed>) = 0 [pid 8987] setpgid(0, 0 [pid 8985] <... prctl resumed>) = 0 [pid 8987] <... setpgid resumed>) = 0 [pid 8988] chdir("./224" [pid 8987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8986] setpgid(0, 0 [pid 8985] setpgid(0, 0 [pid 8988] <... chdir resumed>) = 0 [pid 8987] <... openat resumed>) = 3 [pid 8986] <... setpgid resumed>) = 0 [pid 8985] <... setpgid resumed>) = 0 [pid 8988] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8987] write(3, "1000", 4 [pid 8986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8988] <... prctl resumed>) = 0 [pid 8987] <... write resumed>) = 4 [pid 8986] <... openat resumed>) = 3 [pid 8985] <... openat resumed>) = 3 [pid 8988] setpgid(0, 0 [pid 8987] close(3 [pid 8986] write(3, "1000", 4 [pid 8985] write(3, "1000", 4 [pid 8988] <... setpgid resumed>) = 0 [pid 8987] <... close resumed>) = 0 [pid 8986] <... write resumed>) = 4 [pid 8985] <... write resumed>) = 4 [pid 8988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8987] symlink("/dev/binderfs", "./binderfs" [pid 8986] close(3 [pid 8985] close(3 [pid 8988] <... openat resumed>) = 3 [pid 8987] <... symlink resumed>) = 0 [pid 8986] <... close resumed>) = 0 [pid 8985] <... close resumed>) = 0 [pid 8988] write(3, "1000", 4 [pid 8987] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8986] symlink("/dev/binderfs", "./binderfs" [pid 8985] symlink("/dev/binderfs", "./binderfs" [pid 8988] <... write resumed>) = 4 [pid 8987] <... futex resumed>) = 0 [pid 8986] <... symlink resumed>) = 0 [pid 8985] <... symlink resumed>) = 0 [pid 8988] close(3 [pid 8987] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8986] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8985] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8988] <... close resumed>) = 0 [pid 8987] <... mmap resumed>) = 0x7f38e1b78000 [pid 8986] <... futex resumed>) = 0 [pid 8985] <... futex resumed>) = 0 [pid 8988] symlink("/dev/binderfs", "./binderfs" [pid 8987] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 8986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8985] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8988] <... symlink resumed>) = 0 [pid 8987] <... mprotect resumed>) = 0 [pid 8986] <... mmap resumed>) = 0x7f38e1b78000 [pid 8985] <... mmap resumed>) = 0x7f38e1b78000 [pid 8988] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8987] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8986] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 8985] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 8988] <... futex resumed>) = 0 [pid 8986] <... mprotect resumed>) = 0 [pid 8985] <... mprotect resumed>) = 0 [pid 8988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8987] <... clone resumed>, parent_tid=[8989], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8989 [pid 8986] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8985] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8988] <... mmap resumed>) = 0x7f38e1b78000 [pid 8987] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8988] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 8987] <... futex resumed>) = 0 [pid 8986] <... clone resumed>, parent_tid=[8990], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8990 [pid 8985] <... clone resumed>, parent_tid=[8991], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8991 [pid 8988] <... mprotect resumed>) = 0 [pid 8987] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8986] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8985] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8988] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8986] <... futex resumed>) = 0 [pid 8985] <... futex resumed>) = 0 [pid 8986] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8990 attached [pid 8990] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 8990] memfd_create("syzkaller", 0 [pid 8988] <... clone resumed>, parent_tid=[8992], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 8992 [pid 8985] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8988] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8988] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8990] <... memfd_create resumed>) = 3 [pid 8990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 8992 attached ./strace-static-x86_64: Process 8991 attached ./strace-static-x86_64: Process 8989 attached [pid 8992] set_robust_list(0x7f38e1b989e0, 24 [pid 8991] set_robust_list(0x7f38e1b989e0, 24 [pid 8989] set_robust_list(0x7f38e1b989e0, 24 [pid 8992] <... set_robust_list resumed>) = 0 [pid 8991] <... set_robust_list resumed>) = 0 [pid 8989] <... set_robust_list resumed>) = 0 [pid 8992] memfd_create("syzkaller", 0 [pid 8991] memfd_create("syzkaller", 0 [pid 8989] memfd_create("syzkaller", 0 [pid 8992] <... memfd_create resumed>) = 3 [pid 8991] <... memfd_create resumed>) = 3 [pid 8989] <... memfd_create resumed>) = 3 [pid 8992] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8991] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8989] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8992] <... mmap resumed>) = 0x7f38d9778000 [pid 8991] <... mmap resumed>) = 0x7f38d9778000 [pid 8989] <... mmap resumed>) = 0x7f38d9778000 [pid 8990] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8991] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8992] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8989] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 8990] <... write resumed>) = 4194304 [pid 8990] munmap(0x7f38d9778000, 4194304) = 0 [pid 8990] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8991] <... write resumed>) = 4194304 [pid 8990] <... openat resumed>) = 4 [pid 8991] munmap(0x7f38d9778000, 4194304 [pid 8990] ioctl(4, LOOP_SET_FD, 3 [pid 8992] <... write resumed>) = 4194304 [pid 8991] <... munmap resumed>) = 0 [pid 8992] munmap(0x7f38d9778000, 4194304 [pid 8991] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8990] <... ioctl resumed>) = 0 [pid 8990] close(3 [pid 8992] <... munmap resumed>) = 0 [pid 8991] <... openat resumed>) = 4 [pid 8992] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8991] ioctl(4, LOOP_SET_FD, 3 [pid 8992] <... openat resumed>) = 4 [pid 8990] <... close resumed>) = 0 [pid 8990] mkdir("./file0", 0777) = 0 [pid 8990] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8992] ioctl(4, LOOP_SET_FD, 3 [pid 8991] <... ioctl resumed>) = 0 [pid 8991] close(3 [pid 8992] <... ioctl resumed>) = 0 [pid 8989] <... write resumed>) = 4194304 [pid 8991] <... close resumed>) = 0 [pid 8991] mkdir("./file0", 0777) = 0 [pid 8991] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8992] close(3) = 0 [pid 8992] mkdir("./file0", 0777) = 0 [pid 8992] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 8989] munmap(0x7f38d9778000, 4194304) = 0 [pid 8989] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 8989] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8989] close(3) = 0 [pid 8989] mkdir("./file0", 0777) = 0 [ 235.145003][ T8990] loop1: detected capacity change from 0 to 8192 [ 235.154972][ T8991] loop2: detected capacity change from 0 to 8192 [ 235.161978][ T8992] loop0: detected capacity change from 0 to 8192 [ 235.168913][ T8990] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 235.182217][ T8989] loop5: detected capacity change from 0 to 8192 [ 235.182646][ T8990] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 235.194550][ T8991] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 235.198025][ T8992] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 235.211282][ T8989] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 235.237234][ T8991] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 235.246635][ T8991] REISERFS (device loop2): using ordered data mode [ 235.246681][ T8990] REISERFS (device loop1): using ordered data mode [ 235.253168][ T8991] reiserfs: using flush barriers [ 235.265474][ T8992] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 235.265936][ T8989] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 235.275773][ T8990] reiserfs: using flush barriers [ 235.283808][ T8991] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 235.289601][ T8992] REISERFS (device loop0): using ordered data mode [ 235.304923][ T8989] REISERFS (device loop5): using ordered data mode [ 235.313088][ T8990] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 235.318185][ T8991] REISERFS (device loop2): checking transaction log (loop2) [ 235.334948][ T8992] reiserfs: using flush barriers [ 235.341399][ T8989] reiserfs: using flush barriers [ 235.347433][ T8990] REISERFS (device loop1): checking transaction log (loop1) [ 235.353583][ T8989] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 235.359056][ T8992] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 235.375650][ T8989] REISERFS (device loop5): checking transaction log (loop5) [ 235.399340][ T8992] REISERFS (device loop0): checking transaction log (loop0) [ 235.400217][ T8989] REISERFS (device loop5): Using r5 hash to sort names [ 235.406938][ T8990] REISERFS (device loop1): Using r5 hash to sort names [ 235.414375][ T8989] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 235.420622][ T8991] REISERFS (device loop2): Using r5 hash to sort names [pid 8989] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "") = 0 [pid 8989] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8989] chdir("./file0") = 0 [pid 8989] ioctl(4, LOOP_CLR_FD) = 0 [pid 8989] close(4) = 0 [pid 8989] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8989] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8987] <... futex resumed>) = 0 [pid 8987] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8987] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8989] <... futex resumed>) = 0 [pid 8989] mkdir("./file1", 000) = 0 [pid 8989] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8987] <... futex resumed>) = 0 [pid 8987] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8989] mkdir("./bus", 000 [pid 8987] <... futex resumed>) = 0 [pid 8989] <... mkdir resumed>) = 0 [pid 8987] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8989] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 235.434058][ T8989] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 235.441112][ T8992] REISERFS (device loop0): Using r5 hash to sort names [ 235.457851][ T8990] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 235.476125][ T8991] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 8989] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8987] <... futex resumed>) = 0 [pid 8990] <... mount resumed>) = 0 [pid 8990] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 8990] chdir("./file0") = 0 [pid 8990] ioctl(4, LOOP_CLR_FD) = 0 [pid 8990] close(4) = 0 [pid 8990] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8986] <... futex resumed>) = 0 [pid 8986] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8986] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8990] <... futex resumed>) = 1 [pid 8990] mkdir("./file1", 000) = 0 [pid 8990] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8986] <... futex resumed>) = 0 [pid 8986] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8986] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8990] <... futex resumed>) = 1 [pid 8987] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8990] mkdir("./bus", 000) = 0 [pid 8990] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8986] <... futex resumed>) = 0 [pid 8986] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8986] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8990] <... futex resumed>) = 1 [pid 8990] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8989] <... futex resumed>) = 0 [pid 8987] <... futex resumed>) = 1 [pid 8989] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8987] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8991] <... mount resumed>) = 0 [ 235.477387][ T8990] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 235.489454][ T8992] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 235.518475][ T8991] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 235.518657][ T8989] overlayfs: upper fs needs to support d_type. [ 235.535301][ T8989] overlayfs: upper fs does not support tmpfile. [pid 8992] <... mount resumed>) = 0 [pid 8991] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8992] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 8991] <... openat resumed>) = 3 [pid 8986] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8986] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 8986] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8986] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[8997], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8997 [pid 8986] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8986] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8992] <... openat resumed>) = 3 [pid 8991] chdir("./file0" [pid 8992] chdir("./file0" [pid 8991] <... chdir resumed>) = 0 [pid 8992] <... chdir resumed>) = 0 [pid 8991] ioctl(4, LOOP_CLR_FD [pid 8987] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8992] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 8997 attached [pid 8997] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8997] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8997] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8991] <... ioctl resumed>) = 0 [pid 8987] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8992] <... ioctl resumed>) = 0 [pid 8991] close(4 [pid 8987] <... futex resumed>) = 0 [pid 8992] close(4 [pid 8991] <... close resumed>) = 0 [ 235.542038][ T8990] overlayfs: upper fs needs to support d_type. [ 235.542284][ T8992] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 235.549269][ T8990] overlayfs: upper fs does not support tmpfile. [ 235.558360][ T8989] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 235.565200][ T8990] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 235.571992][ T8989] overlayfs: failed to resolve './file0': -2 [pid 8992] <... close resumed>) = 0 [pid 8991] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8987] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8992] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8991] <... futex resumed>) = 1 [pid 8985] <... futex resumed>) = 0 [pid 8992] <... futex resumed>) = 1 [pid 8991] mkdir("./file1", 000 [pid 8988] <... futex resumed>) = 0 [pid 8987] <... mmap resumed>) = 0x7f38d9b57000 [pid 8985] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8992] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 8991] <... mkdir resumed>) = 0 [pid 8988] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8987] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8985] <... futex resumed>) = 0 [pid 8992] mkdir("./file1", 000 [pid 8991] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8988] <... futex resumed>) = 0 [pid 8987] <... mprotect resumed>) = 0 [pid 8985] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8988] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8997] <... mount resumed>) = 0 [pid 8992] <... mkdir resumed>) = 0 [pid 8991] <... futex resumed>) = 0 [pid 8987] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8992] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8991] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8997] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8992] <... futex resumed>) = 1 [pid 8991] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8988] <... futex resumed>) = 0 [pid 8985] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8997] <... openat resumed>) = 4 [pid 8992] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8991] mkdir("./bus", 000 [pid 8988] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8987] <... clone resumed>, parent_tid=[8998], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8998 [pid 8985] <... futex resumed>) = 0 [pid 8992] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8997] chdir("." [pid 8992] mkdir("./bus", 000 [pid 8991] <... mkdir resumed>) = 0 [pid 8988] <... futex resumed>) = 0 [pid 8987] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8985] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8997] <... chdir resumed>) = 0 [pid 8992] <... mkdir resumed>) = 0 [pid 8991] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8988] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8987] <... futex resumed>) = 0 [pid 8985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8997] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8992] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8991] <... futex resumed>) = 0 [pid 8988] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8987] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8985] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8997] <... futex resumed>) = 1 [pid 8992] <... futex resumed>) = 0 [pid 8991] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8988] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8986] <... futex resumed>) = 0 [pid 8985] <... futex resumed>) = 0 [pid 8997] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8992] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 8988] <... futex resumed>) = 0 [pid 8985] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8998 attached [pid 8998] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8998] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8998] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 8988] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8990] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8989] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8989] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 8990] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8990] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8989] <... futex resumed>) = 0 [pid 8989] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8986] exit_group(0 [pid 8997] <... futex resumed>) = ? [pid 8990] <... futex resumed>) = ? [pid 8986] <... exit_group resumed>) = ? [pid 8998] <... mount resumed>) = 0 [pid 8997] +++ exited with 0 +++ [pid 8990] +++ exited with 0 +++ [pid 8986] +++ exited with 0 +++ [pid 8998] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 8998] chdir(".") = 0 [pid 8998] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8987] <... futex resumed>) = 0 [pid 8998] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8987] exit_group(0 [pid 8998] <... futex resumed>) = ? [pid 8987] <... exit_group resumed>) = ? [pid 8998] +++ exited with 0 +++ [pid 8989] <... futex resumed>) = ? [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8986, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./224", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8989] +++ exited with 0 +++ [pid 8987] +++ exited with 0 +++ [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./224", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8987, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 4999] <... openat resumed>) = 3 [pid 4999] fstat(3, [pid 5003] umount2("./224", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] getdents64(3, [pid 5003] openat(AT_FDCWD, "./224", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] <... openat resumed>) = 3 [pid 4999] umount2("./224/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] fstat(3, [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./224/binderfs", [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] getdents64(3, [pid 4999] unlink("./224/binderfs" [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... unlink resumed>) = 0 [pid 5003] umount2("./224/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 235.592506][ T8990] overlayfs: failed to resolve './file0': -2 [ 235.609843][ T8991] overlayfs: upper fs needs to support d_type. [ 235.617047][ T8992] overlayfs: upper fs needs to support d_type. [ 235.623326][ T8992] overlayfs: upper fs does not support tmpfile. [ 235.639414][ T8991] overlayfs: upper fs does not support tmpfile. [pid 5003] lstat("./224/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./224/binderfs") = 0 [pid 5003] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 8988] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8985] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8988] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8985] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8988] <... futex resumed>) = 0 [pid 8985] <... futex resumed>) = 0 [pid 8988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8985] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8988] <... mmap resumed>) = 0x7f38d9b57000 [pid 8988] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8985] <... mmap resumed>) = 0x7f38d9b57000 [pid 8988] <... mprotect resumed>) = 0 [pid 8985] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 8988] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8985] <... mprotect resumed>) = 0 [pid 8985] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 8988] <... clone resumed>, parent_tid=[8999], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 8999 [pid 8988] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8985] <... clone resumed>, parent_tid=[9000], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9000 [pid 8988] <... futex resumed>) = 0 [pid 8985] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 8988] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8985] <... futex resumed>) = 0 [pid 8985] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9000 attached [pid 9000] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9000] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9000] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9000] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9000] chdir(".") = 0 [pid 9000] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 8985] <... futex resumed>) = 0 [pid 9000] <... futex resumed>) = 1 [pid 9000] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 8999 attached [pid 8999] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 8999] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 8999] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [ 235.647702][ T8992] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 235.664073][ T8991] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 235.667549][ T8992] overlayfs: failed to resolve './file0': -2 [pid 8999] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 8992] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8999] <... openat resumed>) = 4 [pid 8999] chdir(".") = 0 [pid 8999] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8988] <... futex resumed>) = 0 [pid 8999] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8992] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8988] exit_group(0 [pid 8999] <... futex resumed>) = ? [pid 8988] <... exit_group resumed>) = ? [pid 8999] +++ exited with 0 +++ [pid 8992] +++ exited with 0 +++ [pid 8988] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8988, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./224", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./224", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./224/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./224/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./224/binderfs") = 0 [pid 4998] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./224/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./224/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 8991] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 8991] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 8991] <... futex resumed>) = 0 [pid 8991] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8985] exit_group(0 [pid 5003] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./224/file0", [pid 9000] <... futex resumed>) = ? [pid 8991] <... futex resumed>) = ? [pid 8985] <... exit_group resumed>) = ? [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9000] +++ exited with 0 +++ [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 5003] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] openat(AT_FDCWD, "./224/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] getdents64(4, [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4 [pid 8991] +++ exited with 0 +++ [pid 8985] +++ exited with 0 +++ [pid 5003] getdents64(4, [pid 4999] <... close resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] rmdir("./224/file0" [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8985, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5003] getdents64(4, [pid 4999] <... rmdir resumed>) = 0 [pid 5000] umount2("./224", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] close(4 [pid 5000] openat(AT_FDCWD, "./224", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... close resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5003] rmdir("./224/file0" [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, [pid 5000] getdents64(3, [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./224" [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... rmdir resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] umount2("./224/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] rmdir("./224" [pid 5000] lstat("./224/binderfs", [pid 5003] <... rmdir resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./224/binderfs" [pid 4999] mkdir("./225", 0777 [pid 5000] <... unlink resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 5003] mkdir("./225", 0777 [pid 5000] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] <... openat resumed>) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5003] close(3) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9001 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9002 ./strace-static-x86_64: Process 9002 attached [pid 9002] set_robust_list(0x555556b565e0, 24) = 0 [pid 9002] chdir("./225") = 0 [pid 9002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 9001 attached [ 235.728034][ T8991] overlayfs: failed to resolve './file0': -2 [pid 9002] setpgid(0, 0) = 0 [pid 9002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9002] write(3, "1000", 4) = 4 [pid 9002] close(3) = 0 [pid 9002] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9002] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9002] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9002] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9002] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9003], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9003 [pid 9002] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9002] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9003 attached [pid 9001] set_robust_list(0x555556b565e0, 24) = 0 [pid 9003] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9003] memfd_create("syzkaller", 0) = 3 [pid 9003] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9001] chdir("./225") = 0 [pid 9001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9001] setpgid(0, 0) = 0 [pid 9001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9001] write(3, "1000", 4) = 4 [pid 9001] close(3) = 0 [pid 9001] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9001] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9001] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9001] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9004], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9004 [pid 9001] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9001] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9004 attached [pid 9004] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9004] memfd_create("syzkaller", 0) = 3 [pid 9004] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./224/file0", [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] lstat("./224/file0", [pid 5000] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] openat(AT_FDCWD, "./224/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 4 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] fstat(4, [pid 4998] openat(AT_FDCWD, "./224/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... openat resumed>) = 4 [pid 5000] getdents64(4, [pid 4998] fstat(4, [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, [pid 4998] getdents64(4, [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./224/file0" [pid 4998] getdents64(4, [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] getdents64(3, [pid 4998] close(4 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... close resumed>) = 0 [pid 5000] close(3) = 0 [pid 4998] rmdir("./224/file0" [pid 5000] rmdir("./224" [pid 4998] <... rmdir resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, [pid 5000] mkdir("./225", 0777 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 4998] close(3 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4998] <... close resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4998] rmdir("./224" [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] <... rmdir resumed>) = 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] mkdir("./225", 0777 [pid 5000] close(3) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9005 [pid 4998] <... openat resumed>) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9006 [pid 9003] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304./strace-static-x86_64: Process 9005 attached [pid 9005] set_robust_list(0x555556b565e0, 24) = 0 [pid 9005] chdir("./225") = 0 [pid 9005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9005] setpgid(0, 0) = 0 [pid 9005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 9006 attached [pid 9006] set_robust_list(0x555556b565e0, 24 [pid 9005] <... openat resumed>) = 3 [pid 9006] <... set_robust_list resumed>) = 0 [pid 9006] chdir("./225" [pid 9005] write(3, "1000", 4) = 4 [pid 9006] <... chdir resumed>) = 0 [pid 9005] close(3 [pid 9004] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9006] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9005] <... close resumed>) = 0 [pid 9006] <... prctl resumed>) = 0 [pid 9005] symlink("/dev/binderfs", "./binderfs" [pid 9006] setpgid(0, 0 [pid 9005] <... symlink resumed>) = 0 [pid 9006] <... setpgid resumed>) = 0 [pid 9005] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9005] <... futex resumed>) = 0 [pid 9006] <... openat resumed>) = 3 [pid 9005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9006] write(3, "1000", 4 [pid 9005] <... mmap resumed>) = 0x7f38e1b78000 [pid 9006] <... write resumed>) = 4 [pid 9005] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9006] close(3 [pid 9005] <... mprotect resumed>) = 0 [pid 9006] <... close resumed>) = 0 [pid 9005] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9006] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9005] <... clone resumed>, parent_tid=[9007], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9007 [pid 9006] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9005] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9006] <... futex resumed>) = 0 [pid 9005] <... futex resumed>) = 0 [pid 9006] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9005] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9006] <... mmap resumed>) = 0x7f38e1b78000 ./strace-static-x86_64: Process 9007 attached [pid 9006] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9007] set_robust_list(0x7f38e1b989e0, 24 [pid 9006] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9007] <... set_robust_list resumed>) = 0 [pid 9007] memfd_create("syzkaller", 0 [pid 9006] <... clone resumed>, parent_tid=[9008], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9008 [pid 9007] <... memfd_create resumed>) = 3 [pid 9006] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9007] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9006] <... futex resumed>) = 0 [pid 9007] <... mmap resumed>) = 0x7f38d9778000 [pid 9006] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9008 attached [pid 9008] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9008] memfd_create("syzkaller", 0) = 3 [pid 9008] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9003] <... write resumed>) = 4194304 [pid 9003] munmap(0x7f38d9778000, 4194304) = 0 [pid 9003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9003] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9003] close(3) = 0 [pid 9003] mkdir("./file0", 0777) = 0 [pid 9003] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9007] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9004] <... write resumed>) = 4194304 [pid 9008] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9004] munmap(0x7f38d9778000, 4194304) = 0 [pid 9004] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 235.947894][ T9003] loop5: detected capacity change from 0 to 8192 [ 235.961649][ T9003] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9004] ioctl(4, LOOP_SET_FD, 3 [pid 9007] <... write resumed>) = 4194304 [pid 9007] munmap(0x7f38d9778000, 4194304) = 0 [pid 9004] <... ioctl resumed>) = 0 [pid 9007] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9004] close(3 [pid 9007] ioctl(4, LOOP_SET_FD, 3 [pid 9004] <... close resumed>) = 0 [pid 9007] <... ioctl resumed>) = 0 [pid 9007] close(3 [pid 9004] mkdir("./file0", 0777 [pid 9007] <... close resumed>) = 0 [pid 9004] <... mkdir resumed>) = 0 [ 235.992044][ T9003] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 235.996730][ T9004] loop1: detected capacity change from 0 to 8192 [ 236.013065][ T9003] REISERFS (device loop5): using ordered data mode [ 236.020538][ T9003] reiserfs: using flush barriers [ 236.028565][ T9007] loop2: detected capacity change from 0 to 8192 [pid 9008] <... write resumed>) = 4194304 [pid 9007] mkdir("./file0", 0777 [pid 9004] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9007] <... mkdir resumed>) = 0 [pid 9007] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9008] munmap(0x7f38d9778000, 4194304) = 0 [pid 9008] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9008] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9008] close(3) = 0 [pid 9008] mkdir("./file0", 0777) = 0 [ 236.037260][ T9003] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 236.047121][ T9008] loop0: detected capacity change from 0 to 8192 [ 236.054693][ T9003] REISERFS (device loop5): checking transaction log (loop5) [ 236.060594][ T9007] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.074104][ T9004] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.095994][ T9007] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 236.096433][ T9008] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.105559][ T9007] REISERFS (device loop2): using ordered data mode [ 236.119484][ T9003] REISERFS (device loop5): Using r5 hash to sort names [ 236.124965][ T9007] reiserfs: using flush barriers [ 236.132801][ T9003] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.138039][ T9004] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 236.150820][ T9008] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 236.158765][ T9007] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 236.169415][ T9003] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 236.184249][ T9004] REISERFS (device loop1): using ordered data mode [ 236.194635][ T9008] REISERFS (device loop0): using ordered data mode [ 236.199920][ T9004] reiserfs: using flush barriers [ 236.212700][ T9004] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 236.229208][ T9004] REISERFS (device loop1): checking transaction log (loop1) [ 236.230160][ T9007] REISERFS (device loop2): checking transaction log (loop2) [pid 9008] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9003] <... mount resumed>) = 0 [pid 9003] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9003] chdir("./file0") = 0 [pid 9003] ioctl(4, LOOP_CLR_FD) = 0 [pid 9003] close(4) = 0 [pid 9003] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9002] <... futex resumed>) = 0 [pid 9002] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9002] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9003] <... futex resumed>) = 1 [pid 9003] mkdir("./file1", 000) = 0 [pid 9003] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9002] <... futex resumed>) = 0 [pid 9002] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9002] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9003] <... futex resumed>) = 1 [pid 9003] mkdir("./bus", 000) = 0 [pid 9003] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9002] <... futex resumed>) = 0 [pid 9002] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9002] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9003] <... futex resumed>) = 1 [ 236.237259][ T9004] REISERFS (device loop1): Using r5 hash to sort names [ 236.244999][ T9008] reiserfs: using flush barriers [ 236.250925][ T9004] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.276367][ T9003] overlayfs: upper fs needs to support d_type. [ 236.279184][ T9004] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 236.284477][ T9007] REISERFS (device loop2): Using r5 hash to sort names [pid 9003] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9004] <... mount resumed>) = 0 [pid 9002] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9002] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9002] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9002] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9002] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9013], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9013 [pid 9002] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9002] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9013 attached [ 236.299420][ T9008] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 236.301801][ T9003] overlayfs: upper fs does not support tmpfile. [ 236.316792][ T9007] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.322740][ T9003] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 236.340382][ T9008] REISERFS (device loop0): checking transaction log (loop0) [pid 9004] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9013] set_robust_list(0x7f38d9b779e0, 24 [pid 9004] <... openat resumed>) = 3 [pid 9013] <... set_robust_list resumed>) = 0 [pid 9007] <... mount resumed>) = 0 [pid 9004] chdir("./file0" [pid 9013] mkdir(".", 0777 [pid 9004] <... chdir resumed>) = 0 [pid 9013] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9004] ioctl(4, LOOP_CLR_FD [pid 9013] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9004] <... ioctl resumed>) = 0 [pid 9004] close(4) = 0 [pid 9004] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9001] <... futex resumed>) = 0 [pid 9004] mkdir("./file1", 000 [pid 9001] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9004] <... mkdir resumed>) = 0 [pid 9001] <... futex resumed>) = 0 [pid 9004] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9001] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9004] <... futex resumed>) = 0 [pid 9001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9004] mkdir("./bus", 000 [pid 9001] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9004] <... mkdir resumed>) = 0 [pid 9001] <... futex resumed>) = 0 [pid 9004] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9003] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9001] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9004] <... futex resumed>) = 0 [pid 9003] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9004] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9003] <... futex resumed>) = 0 [pid 9001] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9004] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9003] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9001] <... futex resumed>) = 0 [ 236.343919][ T9003] overlayfs: failed to resolve './file0': -2 [ 236.351181][ T9008] REISERFS (device loop0): Using r5 hash to sort names [ 236.356755][ T9007] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 236.363821][ T9008] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.388653][ T9004] overlayfs: upper fs needs to support d_type. [pid 9004] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9001] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9013] <... mount resumed>) = 0 [pid 9008] <... mount resumed>) = 0 [pid 9007] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9013] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9013] chdir(".") = 0 [pid 9013] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9002] <... futex resumed>) = 0 [pid 9013] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9002] exit_group(0 [pid 9013] <... futex resumed>) = ? [pid 9002] <... exit_group resumed>) = ? [pid 9013] +++ exited with 0 +++ [pid 9008] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9007] <... openat resumed>) = 3 [pid 9008] chdir("./file0" [pid 9007] chdir("./file0" [pid 9008] <... chdir resumed>) = 0 [pid 9007] <... chdir resumed>) = 0 [pid 9008] ioctl(4, LOOP_CLR_FD [pid 9007] ioctl(4, LOOP_CLR_FD [pid 9008] <... ioctl resumed>) = 0 [pid 9007] <... ioctl resumed>) = 0 [pid 9008] close(4 [pid 9007] close(4 [pid 9008] <... close resumed>) = 0 [pid 9007] <... close resumed>) = 0 [pid 9007] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9008] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9005] <... futex resumed>) = 0 [pid 9005] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9005] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9007] <... futex resumed>) = 1 [pid 9006] <... futex resumed>) = 0 [pid 9006] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9006] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9008] <... futex resumed>) = 1 [pid 9007] mkdir("./file1", 000 [pid 9003] <... futex resumed>) = ? [pid 9008] mkdir("./file1", 000 [pid 9007] <... mkdir resumed>) = 0 [pid 9008] <... mkdir resumed>) = 0 [pid 9007] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9008] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9007] <... futex resumed>) = 1 [pid 9005] <... futex resumed>) = 0 [pid 9008] <... futex resumed>) = 1 [pid 9007] mkdir("./bus", 000 [pid 9006] <... futex resumed>) = 0 [pid 9005] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9003] +++ exited with 0 +++ [pid 9002] +++ exited with 0 +++ [pid 9008] mkdir("./bus", 000 [pid 9007] <... mkdir resumed>) = 0 [pid 9006] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9005] <... futex resumed>) = 0 [pid 9008] <... mkdir resumed>) = 0 [pid 9007] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9006] <... futex resumed>) = 0 [pid 9005] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9002, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 9008] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9007] <... futex resumed>) = 0 [pid 9006] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9005] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9008] <... futex resumed>) = 0 [pid 9007] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9006] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9005] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9008] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9006] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9005] <... futex resumed>) = 0 [ 236.388692][ T9008] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 236.394828][ T9004] overlayfs: upper fs does not support tmpfile. [ 236.395158][ T9004] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 236.427584][ T9008] overlayfs: upper fs needs to support d_type. [ 236.433583][ T9004] overlayfs: failed to resolve './file0': -2 [ 236.433804][ T9008] overlayfs: upper fs does not support tmpfile. [pid 9007] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9006] <... futex resumed>) = 0 [pid 9005] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9004] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9006] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9004] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9001] <... futex resumed>) = 0 [pid 9004] mkdir(".", 0777 [pid 9001] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9004] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9001] <... futex resumed>) = 0 [pid 9004] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9001] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] umount2("./225", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./225", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9004] <... mount resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 9004] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5003] fstat(3, [pid 9004] <... openat resumed>) = 4 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9004] chdir("." [pid 5003] getdents64(3, [pid 9004] <... chdir resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9004] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./225/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9004] <... futex resumed>) = 1 [pid 9001] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9004] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9001] exit_group(0 [pid 5003] lstat("./225/binderfs", [pid 9004] <... futex resumed>) = ? [pid 9001] <... exit_group resumed>) = ? [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9004] +++ exited with 0 +++ [pid 9001] +++ exited with 0 +++ [pid 5003] unlink("./225/binderfs") = 0 [pid 5003] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9001, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./225", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./225", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./225/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./225/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./225/binderfs") = 0 [pid 4999] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9008] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9008] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9008] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9006] <... futex resumed>) = 0 [pid 9006] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9008] <... futex resumed>) = 0 [pid 9006] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9008] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9008] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9008] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9008] chdir(".") = 0 [pid 9008] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9008] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9006] <... futex resumed>) = 0 [pid 9006] exit_group(0 [pid 9005] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9006] <... exit_group resumed>) = ? [pid 9005] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9008] <... futex resumed>) = ? [pid 9005] <... futex resumed>) = 0 [pid 9005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9008] +++ exited with 0 +++ [pid 9006] +++ exited with 0 +++ [pid 9005] <... mmap resumed>) = 0x7f38d9b57000 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9006, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./225", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./225", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./225/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./225/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./225/binderfs") = 0 [pid 4998] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 236.447736][ T9007] overlayfs: upper fs needs to support d_type. [ 236.453143][ T9008] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 236.469078][ T9007] overlayfs: upper fs does not support tmpfile. [ 236.478915][ T9007] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 236.483712][ T9008] overlayfs: failed to resolve './file0': -2 [ 236.488123][ T9007] overlayfs: failed to resolve './file0': -2 [pid 9005] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9005] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9014], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9014 [pid 9005] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9005] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./225/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./225/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9007] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9007] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9007] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9014 attached [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4 [pid 9014] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./225/file0" [pid 9014] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9014] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./225") = 0 [pid 4999] mkdir("./226", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9015 ./strace-static-x86_64: Process 9015 attached [pid 9015] set_robust_list(0x555556b565e0, 24) = 0 [pid 9015] chdir("./226") = 0 [pid 9015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9015] setpgid(0, 0) = 0 [pid 9015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9015] write(3, "1000", 4) = 4 [pid 9015] close(3) = 0 [pid 9015] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9015] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9015] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9015] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9016], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9016 [pid 9015] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9015] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9014] <... mount resumed>) = 0 ./strace-static-x86_64: Process 9016 attached [pid 9016] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9014] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9014] chdir("." [pid 9016] memfd_create("syzkaller", 0 [pid 9014] <... chdir resumed>) = 0 [pid 9016] <... memfd_create resumed>) = 3 [pid 9016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9014] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9005] <... futex resumed>) = 0 [pid 9014] <... futex resumed>) = 1 [pid 9014] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9005] exit_group(0 [pid 9014] <... futex resumed>) = ? [pid 9007] <... futex resumed>) = ? [pid 9005] <... exit_group resumed>) = ? [pid 9007] +++ exited with 0 +++ [pid 9016] <... mmap resumed>) = 0x7f38d9778000 [pid 9014] +++ exited with 0 +++ [pid 9005] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9005, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5000] umount2("./225", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./225", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./225/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./225/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./225/binderfs") = 0 [pid 5000] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./225/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./225/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./225/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./225") = 0 [pid 5003] mkdir("./226", 0777) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] lstat("./225/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./225/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] <... openat resumed>) = 3 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./225/file0" [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 5003] close(3 [pid 4998] rmdir("./225") = 0 [pid 4998] mkdir("./226", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] <... close resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9018 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9017 ./strace-static-x86_64: Process 9018 attached [pid 9018] set_robust_list(0x555556b565e0, 24) = 0 [pid 9018] chdir("./226") = 0 [pid 9018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9018] setpgid(0, 0) = 0 [pid 9018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9018] write(3, "1000", 4) = 4 [pid 9018] close(3) = 0 [pid 9018] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 9017 attached [pid 9017] set_robust_list(0x555556b565e0, 24 [pid 9018] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9017] <... set_robust_list resumed>) = 0 [pid 9018] <... futex resumed>) = 0 [pid 9017] chdir("./226" [pid 9018] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9017] <... chdir resumed>) = 0 [pid 9017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9018] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9017] setpgid(0, 0 [pid 9018] <... mprotect resumed>) = 0 [pid 9017] <... setpgid resumed>) = 0 [pid 9017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9018] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9017] <... openat resumed>) = 3 [pid 9017] write(3, "1000", 4) = 4 [pid 9017] close(3) = 0 [pid 9017] symlink("/dev/binderfs", "./binderfs" [pid 9018] <... clone resumed>, parent_tid=[9019], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9019 [pid 9017] <... symlink resumed>) = 0 [pid 9018] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9018] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9017] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9017] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9017] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9017] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9020], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9020 [pid 9017] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9017] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9019 attached [pid 9019] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9019] memfd_create("syzkaller", 0 [pid 9016] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9019] <... memfd_create resumed>) = 3 [pid 9019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 9020 attached ) = 0x7f38d9778000 [pid 9020] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9020] memfd_create("syzkaller", 0) = 3 [pid 9020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./225/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./225/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./225/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./225" [pid 9020] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./226", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9016] <... write resumed>) = 4194304 [pid 9016] munmap(0x7f38d9778000, 4194304 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9021 [pid 9016] <... munmap resumed>) = 0 [pid 9016] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9016] ioctl(4, LOOP_SET_FD, 3 [pid 9019] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304./strace-static-x86_64: Process 9021 attached [pid 9021] set_robust_list(0x555556b565e0, 24) = 0 [pid 9021] chdir("./226") = 0 [pid 9021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9021] setpgid(0, 0) = 0 [pid 9021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9021] write(3, "1000", 4) = 4 [pid 9021] close(3) = 0 [pid 9021] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9021] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9021] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9021] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9022], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9022 [pid 9021] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9021] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9016] <... ioctl resumed>) = 0 [pid 9016] close(3) = 0 [pid 9016] mkdir("./file0", 0777) = 0 [pid 9016] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9022 attached [pid 9022] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9022] memfd_create("syzkaller", 0) = 3 [pid 9022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9020] <... write resumed>) = 4194304 [ 236.731638][ T9016] loop1: detected capacity change from 0 to 8192 [pid 9019] <... write resumed>) = 4194304 [pid 9020] munmap(0x7f38d9778000, 4194304 [pid 9019] munmap(0x7f38d9778000, 4194304 [pid 9022] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9020] <... munmap resumed>) = 0 [pid 9019] <... munmap resumed>) = 0 [pid 9020] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9019] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9020] <... openat resumed>) = 4 [pid 9019] <... openat resumed>) = 4 [pid 9020] ioctl(4, LOOP_SET_FD, 3 [pid 9019] ioctl(4, LOOP_SET_FD, 3 [pid 9020] <... ioctl resumed>) = 0 [pid 9020] close(3) = 0 [pid 9020] mkdir("./file0", 0777) = 0 [ 236.770007][ T9016] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.785254][ T9016] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 236.793250][ T9020] loop0: detected capacity change from 0 to 8192 [ 236.795292][ T9016] REISERFS (device loop1): using ordered data mode [ 236.801047][ T9019] loop5: detected capacity change from 0 to 8192 [ 236.807733][ T9016] reiserfs: using flush barriers [pid 9020] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9019] <... ioctl resumed>) = 0 [pid 9019] close(3) = 0 [pid 9019] mkdir("./file0", 0777 [pid 9022] <... write resumed>) = 4194304 [pid 9019] <... mkdir resumed>) = 0 [ 236.820830][ T9016] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 236.822481][ T9020] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.850430][ T9020] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 236.860598][ T9016] REISERFS (device loop1): checking transaction log (loop1) [ 236.867561][ T9020] REISERFS (device loop0): using ordered data mode [ 236.869998][ T9016] REISERFS (device loop1): Using r5 hash to sort names [pid 9022] munmap(0x7f38d9778000, 4194304 [pid 9019] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9022] <... munmap resumed>) = 0 [pid 9022] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 236.875972][ T9020] reiserfs: using flush barriers [ 236.883205][ T9016] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.890509][ T9020] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 236.900549][ T9016] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 236.916510][ T9020] REISERFS (device loop0): checking transaction log (loop0) [pid 9022] ioctl(4, LOOP_SET_FD, 3 [pid 9016] <... mount resumed>) = 0 [pid 9016] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9016] chdir("./file0") = 0 [pid 9016] ioctl(4, LOOP_CLR_FD) = 0 [ 236.927085][ T9022] loop2: detected capacity change from 0 to 8192 [ 236.933428][ T9020] REISERFS (device loop0): Using r5 hash to sort names [ 236.946650][ T9020] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.953394][ T9019] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.972464][ T9019] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 9016] close(4) = 0 [pid 9016] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9015] <... futex resumed>) = 0 [pid 9015] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9015] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9016] <... futex resumed>) = 1 [pid 9016] mkdir("./file1", 000) = 0 [pid 9016] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9015] <... futex resumed>) = 0 [pid 9015] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9015] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9016] <... futex resumed>) = 1 [pid 9016] mkdir("./bus", 000) = 0 [pid 9016] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9015] <... futex resumed>) = 0 [pid 9015] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9015] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9016] <... futex resumed>) = 1 [pid 9016] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9022] <... ioctl resumed>) = 0 [pid 9022] close(3) = 0 [pid 9022] mkdir("./file0", 0777) = 0 [ 236.982003][ T9019] REISERFS (device loop5): using ordered data mode [ 236.985640][ T9016] overlayfs: upper fs needs to support d_type. [ 236.988603][ T9019] reiserfs: using flush barriers [ 237.000697][ T9019] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 237.006210][ T9016] overlayfs: upper fs does not support tmpfile. [ 237.016930][ T9020] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9022] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9015] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9015] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9015] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9015] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9026], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9026 [pid 9015] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9020] <... mount resumed>) = 0 [pid 9015] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9020] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 9026 attached [ 237.032461][ T9019] REISERFS (device loop5): checking transaction log (loop5) [ 237.040997][ T9016] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 237.041021][ T9022] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 237.049307][ T9016] overlayfs: failed to resolve './file0': -2 [ 237.063430][ T9019] REISERFS (device loop5): Using r5 hash to sort names [ 237.067744][ T9022] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 9020] chdir("./file0" [pid 9026] set_robust_list(0x7f38d9b779e0, 24 [pid 9020] <... chdir resumed>) = 0 [pid 9016] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9026] <... set_robust_list resumed>) = 0 [pid 9020] ioctl(4, LOOP_CLR_FD [pid 9016] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9026] mkdir(".", 0777 [pid 9020] <... ioctl resumed>) = 0 [pid 9016] <... futex resumed>) = 0 [pid 9026] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9020] close(4 [pid 9016] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9026] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9020] <... close resumed>) = 0 [pid 9020] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9019] <... mount resumed>) = 0 [pid 9020] <... futex resumed>) = 1 [pid 9017] <... futex resumed>) = 0 [pid 9020] mkdir("./file1", 000 [pid 9017] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9020] <... mkdir resumed>) = 0 [pid 9017] <... futex resumed>) = 0 [pid 9020] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9017] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9020] <... futex resumed>) = 0 [pid 9017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9020] mkdir("./bus", 000 [pid 9017] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9020] <... mkdir resumed>) = 0 [pid 9017] <... futex resumed>) = 0 [pid 9020] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9017] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9026] <... mount resumed>) = 0 [pid 9020] <... futex resumed>) = 0 [pid 9017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 237.075944][ T9019] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 237.084422][ T9022] REISERFS (device loop2): using ordered data mode [ 237.103330][ T9022] reiserfs: using flush barriers [ 237.109482][ T9019] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9026] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9020] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9017] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9026] <... openat resumed>) = 4 [pid 9019] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9017] <... futex resumed>) = 0 [pid 9026] chdir("." [pid 9017] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9026] <... chdir resumed>) = 0 [pid 9026] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9015] <... futex resumed>) = 0 [pid 9026] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9015] exit_group(0 [pid 9026] <... futex resumed>) = ? [pid 9016] <... futex resumed>) = ? [pid 9015] <... exit_group resumed>) = ? [pid 9026] +++ exited with 0 +++ [pid 9019] <... openat resumed>) = 3 [pid 9016] +++ exited with 0 +++ [pid 9015] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9015, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 4999] umount2("./226", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./226", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9019] chdir("./file0" [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./226/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9019] <... chdir resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9019] ioctl(4, LOOP_CLR_FD [pid 4999] lstat("./226/binderfs", [pid 9019] <... ioctl resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9019] close(4) = 0 [pid 9019] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9019] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9018] <... futex resumed>) = 0 [ 237.119237][ T9022] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 237.128693][ T9020] overlayfs: upper fs needs to support d_type. [ 237.135779][ T9022] REISERFS (device loop2): checking transaction log (loop2) [ 237.149091][ T9020] overlayfs: upper fs does not support tmpfile. [ 237.155760][ T9020] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 237.163912][ T9020] overlayfs: failed to resolve './file0': -2 [ 237.165131][ T9022] REISERFS (device loop2): Using r5 hash to sort names [pid 9018] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] unlink("./226/binderfs" [pid 9019] <... futex resumed>) = 0 [pid 9018] <... futex resumed>) = 1 [pid 9019] mkdir("./file1", 000 [pid 9018] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9019] <... mkdir resumed>) = 0 [pid 9019] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9018] <... futex resumed>) = 0 [pid 9019] mkdir("./bus", 000 [pid 9018] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9019] <... mkdir resumed>) = 0 [pid 9018] <... futex resumed>) = 0 [pid 9019] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9018] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... unlink resumed>) = 0 [pid 9019] <... futex resumed>) = 0 [pid 9018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9019] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9018] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9017] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9017] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9017] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9017] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9017] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9028], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9028 [pid 9017] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9017] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9018] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9020] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9020] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9020] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9028 attached [pid 9028] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9028] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9028] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9019] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9019] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9018] <... futex resumed>) = 0 [pid 9019] mkdir(".", 0777 [pid 9018] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9019] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9018] <... futex resumed>) = 0 [pid 9019] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9018] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9019] <... mount resumed>) = 0 [pid 9019] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9028] <... mount resumed>) = 0 [pid 9019] <... openat resumed>) = 4 [pid 9019] chdir(".") = 0 [pid 9028] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9019] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9028] <... openat resumed>) = 4 [pid 9019] <... futex resumed>) = 1 [pid 9018] <... futex resumed>) = 0 [pid 9028] chdir("." [pid 9022] <... mount resumed>) = 0 [pid 9019] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9018] exit_group(0 [pid 9028] <... chdir resumed>) = 0 [pid 9022] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9019] <... futex resumed>) = ? [pid 9018] <... exit_group resumed>) = ? [pid 9028] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9017] <... futex resumed>) = 0 [pid 9028] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9017] exit_group(0 [pid 9028] <... futex resumed>) = ? [pid 9020] <... futex resumed>) = ? [pid 9019] +++ exited with 0 +++ [pid 9017] <... exit_group resumed>) = ? [pid 9028] +++ exited with 0 +++ [pid 9022] <... openat resumed>) = 3 [pid 9020] +++ exited with 0 +++ [pid 9018] +++ exited with 0 +++ [pid 9017] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9018, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9017, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 9022] chdir("./file0") = 0 [pid 4998] umount2("./226", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9022] ioctl(4, LOOP_CLR_FD [pid 4998] openat(AT_FDCWD, "./226", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9022] <... ioctl resumed>) = 0 [pid 4998] fstat(3, [pid 9022] close(4 [pid 5003] umount2("./226", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9022] <... close resumed>) = 0 [pid 9022] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 237.178219][ T9022] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 237.193970][ T9019] overlayfs: upper fs needs to support d_type. [ 237.201038][ T9019] overlayfs: upper fs does not support tmpfile. [ 237.208558][ T9019] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 237.216762][ T9019] overlayfs: failed to resolve './file0': -2 [ 237.223250][ T9022] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9022] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9021] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] getdents64(3, [pid 9021] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] openat(AT_FDCWD, "./226", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9022] <... futex resumed>) = 0 [pid 9021] <... futex resumed>) = 1 [pid 5003] <... openat resumed>) = 3 [pid 4998] umount2("./226/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9022] mkdir("./file1", 000 [pid 9021] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] fstat(3, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9022] <... mkdir resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] lstat("./226/binderfs", [pid 9022] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] getdents64(3, [pid 4999] <... umount2 resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9022] <... futex resumed>) = 1 [pid 9021] <... futex resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] unlink("./226/binderfs" [pid 9022] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9021] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./226/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... unlink resumed>) = 0 [pid 9022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9021] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9022] mkdir("./bus", 000 [pid 9021] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] lstat("./226/binderfs", [pid 9022] <... mkdir resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9022] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] unlink("./226/binderfs" [pid 9022] <... futex resumed>) = 1 [pid 9021] <... futex resumed>) = 0 [pid 5003] <... unlink resumed>) = 0 [pid 9022] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9021] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9021] <... futex resumed>) = 0 [pid 9022] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9021] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./226/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./226/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./226/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./226") = 0 [pid 4999] mkdir("./227", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9029 [pid 9021] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9021] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9021] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9021] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9030], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9030 [pid 9021] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 237.279042][ T9022] overlayfs: upper fs needs to support d_type. [ 237.285383][ T9022] overlayfs: upper fs does not support tmpfile. [pid 9021] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9029 attached [pid 4998] <... umount2 resumed>) = 0 [pid 9029] set_robust_list(0x555556b565e0, 24) = 0 [pid 9029] chdir("./227") = 0 [pid 9029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9029] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 9030 attached [pid 9030] set_robust_list(0x7f38d9b779e0, 24 [pid 9029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9030] <... set_robust_list resumed>) = 0 [pid 9030] mkdir(".", 0777 [pid 9029] <... openat resumed>) = 3 [pid 9029] write(3, "1000", 4) = 4 [pid 9030] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9030] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9029] close(3) = 0 [pid 9029] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9029] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9029] <... futex resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 4998] lstat("./226/file0", [pid 9029] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] <... umount2 resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9030] <... mount resumed>) = 0 [pid 9030] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9030] chdir(".") = 0 [pid 9029] <... mprotect resumed>) = 0 [pid 4998] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9030] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9030] <... futex resumed>) = 1 [pid 9029] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9021] <... futex resumed>) = 0 [pid 9030] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] lstat("./226/file0", [pid 4998] openat(AT_FDCWD, "./226/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 9031 attached [pid 9031] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9031] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] <... openat resumed>) = 4 [pid 9029] <... clone resumed>, parent_tid=[9031], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9031 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9029] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] fstat(4, [pid 9029] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9029] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] openat(AT_FDCWD, "./226/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... openat resumed>) = 4 [pid 4998] getdents64(4, [pid 5003] fstat(4, [pid 9031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, [pid 5003] getdents64(4, [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] close(4 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] <... close resumed>) = 0 [pid 5003] close(4 [pid 4998] rmdir("./226/file0" [pid 5003] <... close resumed>) = 0 [pid 9031] memfd_create("syzkaller", 0 [pid 5003] rmdir("./226/file0" [pid 4998] <... rmdir resumed>) = 0 [pid 9031] <... memfd_create resumed>) = 3 [pid 9031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5003] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, [pid 5003] getdents64(3, [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 9031] <... mmap resumed>) = 0x7f38d9778000 [pid 5003] close(3 [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./226") = 0 [pid 4998] mkdir("./227", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5003] <... close resumed>) = 0 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5003] rmdir("./226" [pid 4998] close(3) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] mkdir("./227", 0777./strace-static-x86_64: Process 9032 attached ) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9032 [pid 9031] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5003] <... openat resumed>) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 9032] set_robust_list(0x555556b565e0, 24 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] close(3) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9033 ./strace-static-x86_64: Process 9033 attached [pid 9033] set_robust_list(0x555556b565e0, 24) = 0 [pid 9033] chdir("./227" [pid 9022] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9033] <... chdir resumed>) = 0 [pid 9033] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9022] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9033] <... prctl resumed>) = 0 [pid 9032] <... set_robust_list resumed>) = 0 [pid 9022] <... futex resumed>) = 0 [pid 9033] setpgid(0, 0 [pid 9022] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9021] exit_group(0 [pid 9033] <... setpgid resumed>) = 0 [pid 9030] <... futex resumed>) = ? [pid 9022] <... futex resumed>) = ? [pid 9021] <... exit_group resumed>) = ? [pid 9033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9032] chdir("./227" [pid 9030] +++ exited with 0 +++ [pid 9022] +++ exited with 0 +++ [pid 9021] +++ exited with 0 +++ [ 237.335406][ T9022] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 237.366306][ T9022] overlayfs: failed to resolve './file0': -2 [pid 9033] <... openat resumed>) = 3 [pid 9032] <... chdir resumed>) = 0 [pid 9032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9021, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 9033] write(3, "1000", 4 [pid 9032] <... prctl resumed>) = 0 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 9033] <... write resumed>) = 4 [pid 9032] setpgid(0, 0 [pid 5000] <... restart_syscall resumed>) = 0 [pid 9032] <... setpgid resumed>) = 0 [pid 9033] close(3 [pid 9032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9033] <... close resumed>) = 0 [pid 9032] <... openat resumed>) = 3 [pid 5000] umount2("./226", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9032] write(3, "1000", 4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9033] symlink("/dev/binderfs", "./binderfs" [pid 9032] <... write resumed>) = 4 [pid 5000] openat(AT_FDCWD, "./226", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9032] close(3 [pid 5000] <... openat resumed>) = 3 [pid 9032] <... close resumed>) = 0 [pid 5000] fstat(3, [pid 9033] <... symlink resumed>) = 0 [pid 9032] symlink("/dev/binderfs", "./binderfs" [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9033] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] getdents64(3, [pid 9033] <... futex resumed>) = 0 [pid 9033] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9033] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9033] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9034], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9034 [pid 9033] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9033] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9034 attached [pid 9034] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9034] memfd_create("syzkaller", 0) = 3 [pid 9034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9031] <... write resumed>) = 4194304 [pid 9034] <... mmap resumed>) = 0x7f38d9778000 [pid 9031] munmap(0x7f38d9778000, 4194304) = 0 [pid 9031] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9031] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9031] close(3) = 0 [pid 9031] mkdir("./file0", 0777 [pid 9032] <... symlink resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9032] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./226/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9032] <... futex resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] lstat("./226/binderfs", [pid 9032] <... mmap resumed>) = 0x7f38e1b78000 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9032] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] unlink("./226/binderfs" [pid 9032] <... mprotect resumed>) = 0 [pid 5000] <... unlink resumed>) = 0 [pid 9032] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9032] <... clone resumed>, parent_tid=[9035], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9035 [pid 9032] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9032] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9031] <... mkdir resumed>) = 0 [pid 9031] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9035 attached [pid 9035] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9035] memfd_create("syzkaller", 0) = 3 [pid 9035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9034] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./226/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./226/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./226/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./226") = 0 [pid 5000] mkdir("./227", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 237.436993][ T9031] loop1: detected capacity change from 0 to 8192 [ 237.466881][ T9031] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9037 [pid 9035] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304./strace-static-x86_64: Process 9037 attached [pid 9037] set_robust_list(0x555556b565e0, 24 [pid 9034] <... write resumed>) = 4194304 [pid 9037] <... set_robust_list resumed>) = 0 [pid 9037] chdir("./227") = 0 [pid 9037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9037] setpgid(0, 0 [pid 9034] munmap(0x7f38d9778000, 4194304 [pid 9037] <... setpgid resumed>) = 0 [pid 9037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9037] write(3, "1000", 4) = 4 [pid 9037] close(3) = 0 [pid 9037] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9037] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9037] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9034] <... munmap resumed>) = 0 [pid 9037] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9034] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9037] <... clone resumed>, parent_tid=[9038], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9038 [pid 9034] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9038 attached [pid 9037] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9035] <... write resumed>) = 4194304 [pid 9037] <... futex resumed>) = 0 [pid 9038] set_robust_list(0x7f38e1b989e0, 24 [pid 9037] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9035] munmap(0x7f38d9778000, 4194304 [pid 9038] <... set_robust_list resumed>) = 0 [ 237.503473][ T9031] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 9035] <... munmap resumed>) = 0 [pid 9038] memfd_create("syzkaller", 0 [pid 9035] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9038] <... memfd_create resumed>) = 3 [pid 9035] <... openat resumed>) = 4 [pid 9038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9035] ioctl(4, LOOP_SET_FD, 3 [pid 9034] <... ioctl resumed>) = 0 [pid 9034] close(3 [pid 9038] <... mmap resumed>) = 0x7f38d9778000 [pid 9034] <... close resumed>) = 0 [pid 9034] mkdir("./file0", 0777) = 0 [pid 9034] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9035] <... ioctl resumed>) = 0 [pid 9035] close(3) = 0 [pid 9035] mkdir("./file0", 0777) = 0 [ 237.549247][ T9034] loop5: detected capacity change from 0 to 8192 [ 237.551129][ T9031] REISERFS (device loop1): using ordered data mode [ 237.562283][ T9031] reiserfs: using flush barriers [ 237.568731][ T9035] loop0: detected capacity change from 0 to 8192 [ 237.570120][ T9031] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 237.591404][ T9031] REISERFS (device loop1): checking transaction log (loop1) [pid 9035] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 237.599440][ T9034] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 237.599751][ T9035] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 237.615100][ T9034] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 237.627716][ T9035] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 237.644424][ T9031] REISERFS (device loop1): Using r5 hash to sort names [ 237.645123][ T9035] REISERFS (device loop0): using ordered data mode [ 237.656236][ T9031] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 237.660454][ T9035] reiserfs: using flush barriers [ 237.676173][ T9034] REISERFS (device loop5): using ordered data mode [ 237.682693][ T9034] reiserfs: using flush barriers [pid 9038] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 9038] munmap(0x7f38d9778000, 4194304 [pid 9031] <... mount resumed>) = 0 [pid 9038] <... munmap resumed>) = 0 [pid 9038] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9038] ioctl(4, LOOP_SET_FD, 3 [pid 9031] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9031] chdir("./file0") = 0 [pid 9038] <... ioctl resumed>) = 0 [pid 9038] close(3) = 0 [pid 9038] mkdir("./file0", 0777) = 0 [ 237.688934][ T9034] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 237.689692][ T9031] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 237.706364][ T9035] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 237.730414][ T9034] REISERFS (device loop5): checking transaction log (loop5) [ 237.734891][ T9038] loop2: detected capacity change from 0 to 8192 [pid 9038] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9031] ioctl(4, LOOP_CLR_FD) = 0 [pid 9031] close(4) = 0 [pid 9031] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9031] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9034] <... mount resumed>) = 0 [pid 9029] <... futex resumed>) = 0 [pid 9029] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9029] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9034] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9034] chdir("./file0") = 0 [pid 9034] ioctl(4, LOOP_CLR_FD) = 0 [pid 9034] close(4) = 0 [pid 9034] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9033] <... futex resumed>) = 0 [pid 9033] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9033] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9034] <... futex resumed>) = 1 [pid 9034] mkdir("./file1", 000) = 0 [pid 9034] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9033] <... futex resumed>) = 0 [pid 9033] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9033] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9034] <... futex resumed>) = 1 [pid 9034] mkdir("./bus", 000) = 0 [pid 9034] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9033] <... futex resumed>) = 0 [pid 9033] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9033] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9034] <... futex resumed>) = 1 [ 237.745363][ T9034] REISERFS (device loop5): Using r5 hash to sort names [ 237.750705][ T9035] REISERFS (device loop0): checking transaction log (loop0) [ 237.752686][ T9034] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 237.772496][ T9034] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 237.772983][ T9038] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 237.792821][ T9034] overlayfs: upper fs needs to support d_type. [pid 9034] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9031] <... futex resumed>) = 0 [pid 9031] mkdir("./file1", 000) = 0 [pid 9029] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 237.795375][ T9038] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 237.809292][ T9034] overlayfs: upper fs does not support tmpfile. [ 237.812679][ T9035] REISERFS (device loop0): Using r5 hash to sort names [ 237.817550][ T9034] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 237.831084][ T9034] overlayfs: failed to resolve './file0': -2 [ 237.837536][ T9038] REISERFS (device loop2): using ordered data mode [pid 9034] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9033] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9029] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9034] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9033] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9031] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9029] <... futex resumed>) = 0 [pid 9034] <... futex resumed>) = 0 [pid 9033] <... futex resumed>) = 0 [pid 9031] <... futex resumed>) = 0 [pid 9029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9035] <... mount resumed>) = 0 [pid 9034] mkdir(".", 0777 [pid 9033] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9031] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9029] <... mmap resumed>) = 0x7f38d9b57000 [pid 9035] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9034] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9029] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9035] <... openat resumed>) = 3 [pid 9034] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9029] <... mprotect resumed>) = 0 [pid 9035] chdir("./file0" [pid 9029] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9035] <... chdir resumed>) = 0 [pid 9034] <... mount resumed>) = 0 [pid 9035] ioctl(4, LOOP_CLR_FD [pid 9034] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9034] chdir(".") = 0 [pid 9034] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9034] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9042 attached [pid 9042] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9042] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9029] <... clone resumed>, parent_tid=[9042], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9042 [pid 9035] <... ioctl resumed>) = 0 [ 237.840501][ T9035] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 237.844320][ T9038] reiserfs: using flush barriers [ 237.865236][ T9038] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 237.868105][ T9035] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9035] close(4 [pid 9033] <... futex resumed>) = 0 [pid 9029] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9035] <... close resumed>) = 0 [pid 9033] exit_group(0 [pid 9029] <... futex resumed>) = 1 [pid 9035] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9033] <... exit_group resumed>) = ? [pid 9029] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9035] <... futex resumed>) = 1 [pid 9035] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9042] <... futex resumed>) = 0 [pid 9034] <... futex resumed>) = ? [pid 9032] <... futex resumed>) = 0 [pid 9032] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9042] mkdir("./bus", 000 [pid 9034] +++ exited with 0 +++ [pid 9033] +++ exited with 0 +++ [pid 9032] <... futex resumed>) = 1 [pid 9042] <... mkdir resumed>) = 0 [pid 9032] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9042] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9033, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9042] <... futex resumed>) = 1 [pid 9029] <... futex resumed>) = 0 [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 9042] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9029] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... restart_syscall resumed>) = 0 [pid 9031] <... futex resumed>) = 0 [pid 9029] <... futex resumed>) = 1 [pid 9031] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9029] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] umount2("./227", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./227", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [ 237.897994][ T9038] REISERFS (device loop2): checking transaction log (loop2) [ 237.907111][ T9038] REISERFS (device loop2): Using r5 hash to sort names [ 237.914233][ T9038] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 237.929114][ T9038] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 237.939182][ T9031] overlayfs: upper fs needs to support d_type. [pid 5003] umount2("./227/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9038] <... mount resumed>) = 0 [pid 9035] <... futex resumed>) = 0 [pid 9035] mkdir("./file1", 000) = 0 [pid 9035] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9035] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9038] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9038] chdir("./file0") = 0 [pid 9038] ioctl(4, LOOP_CLR_FD) = 0 [pid 9038] close(4 [pid 9032] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9032] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] lstat("./227/binderfs", [pid 9038] <... close resumed>) = 0 [pid 9038] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9038] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9035] <... futex resumed>) = 0 [pid 9032] <... futex resumed>) = 1 [pid 9035] mkdir("./bus", 000 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9037] <... futex resumed>) = 0 [pid 9037] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9035] <... mkdir resumed>) = 0 [pid 9032] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] unlink("./227/binderfs" [pid 9035] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9035] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9038] <... futex resumed>) = 0 [pid 9037] <... futex resumed>) = 1 [pid 9038] mkdir("./file1", 000) = 0 [pid 9037] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9032] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] <... unlink resumed>) = 0 [pid 9038] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9038] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9032] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9037] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9032] <... futex resumed>) = 1 [pid 9035] <... futex resumed>) = 0 [pid 9037] <... futex resumed>) = 1 [pid 9032] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9038] <... futex resumed>) = 0 [pid 9035] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9038] mkdir("./bus", 000 [pid 9037] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9038] <... mkdir resumed>) = 0 [pid 9038] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9037] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9038] <... futex resumed>) = 0 [pid 9038] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9037] <... futex resumed>) = 0 [ 237.945393][ T9031] overlayfs: upper fs does not support tmpfile. [ 237.952921][ T9031] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 237.962337][ T9031] overlayfs: failed to resolve './file0': -2 [ 237.974111][ T9035] overlayfs: upper fs needs to support d_type. [ 237.982422][ T9038] overlayfs: upper fs needs to support d_type. [ 237.982661][ T9035] overlayfs: upper fs does not support tmpfile. [ 237.991699][ T9038] overlayfs: upper fs does not support tmpfile. [pid 9037] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9031] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9029] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9031] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9029] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9032] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9031] <... futex resumed>) = 0 [pid 9029] <... futex resumed>) = 0 [pid 9032] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9031] mkdir(".", 0777 [pid 9029] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9032] <... futex resumed>) = 0 [pid 9031] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9031] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9032] <... mmap resumed>) = 0x7f38d9b57000 [pid 9031] <... mount resumed>) = 0 [pid 9032] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9031] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9032] <... mprotect resumed>) = 0 [pid 9031] <... openat resumed>) = 4 [pid 9032] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9031] chdir(".") = 0 [pid 9032] <... clone resumed>, parent_tid=[9043], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9043 [pid 9031] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9032] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9031] <... futex resumed>) = 1 [pid 9029] <... futex resumed>) = 0 [pid 9032] <... futex resumed>) = 0 [pid 9031] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9029] exit_group(0./strace-static-x86_64: Process 9043 attached [pid 9037] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9035] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9042] <... futex resumed>) = ? [pid 9032] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9029] <... exit_group resumed>) = ? [pid 5003] <... umount2 resumed>) = 0 [pid 9031] <... futex resumed>) = ? [pid 9043] set_robust_list(0x7f38d9b779e0, 24 [pid 9042] +++ exited with 0 +++ [pid 9037] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9035] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9043] <... set_robust_list resumed>) = 0 [pid 5003] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9043] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9043] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9037] <... futex resumed>) = 0 [pid 9035] <... futex resumed>) = 0 [pid 9031] +++ exited with 0 +++ [pid 9029] +++ exited with 0 +++ [pid 9038] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9035] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9029, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 9043] <... mount resumed>) = 0 [pid 9038] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] lstat("./227/file0", [pid 9043] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9038] <... futex resumed>) = 0 [pid 9037] <... mmap resumed>) = 0x7f38d9b57000 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 9043] chdir("." [pid 9038] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9037] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9043] <... chdir resumed>) = 0 [pid 5003] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... restart_syscall resumed>) = 0 [pid 9043] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9037] <... mprotect resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9032] <... futex resumed>) = 0 [pid 9043] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9037] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9032] exit_group(0 [pid 5003] openat(AT_FDCWD, "./227/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9035] <... futex resumed>) = ? [pid 9032] <... exit_group resumed>) = ? [pid 5003] <... openat resumed>) = 4 [pid 9035] +++ exited with 0 +++ [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9043] <... futex resumed>) = ? [pid 9037] <... clone resumed>, parent_tid=[9044], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9044 [pid 5003] getdents64(4, [pid 4999] umount2("./227", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./227/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9043] +++ exited with 0 +++ [pid 9032] +++ exited with 0 +++ [pid 5003] close(3 [pid 9037] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9032, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 9037] <... futex resumed>) = 0 [pid 5003] rmdir("./227"./strace-static-x86_64: Process 9044 attached [pid 9037] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... rmdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./227", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9044] set_robust_list(0x7f38d9b779e0, 24 [pid 5003] mkdir("./228", 0777 [pid 9044] <... set_robust_list resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 9044] mkdir(".", 0777 [pid 5003] <... mkdir resumed>) = 0 [pid 4999] fstat(3, [pid 4998] umount2("./227", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9044] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... openat resumed>) = 3 [pid 4999] getdents64(3, [pid 4998] openat(AT_FDCWD, "./227", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9044] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... openat resumed>) = 3 [pid 4999] umount2("./227/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] close(3 [pid 4998] fstat(3, [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] lstat("./227/binderfs", [pid 4998] getdents64(3, [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] unlink("./227/binderfs" [pid 4998] umount2("./227/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... unlink resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] lstat("./227/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./227/binderfs") = 0 [ 237.996756][ T9035] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 238.007643][ T9038] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 238.010107][ T9035] overlayfs: failed to resolve './file0': -2 [ 238.032582][ T9038] overlayfs: failed to resolve './file0': -2 [pid 4998] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... close resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9045 ./strace-static-x86_64: Process 9045 attached [pid 9045] set_robust_list(0x555556b565e0, 24) = 0 [pid 9045] chdir("./228") = 0 [pid 9045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9045] setpgid(0, 0) = 0 [pid 9045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9045] write(3, "1000", 4 [pid 9044] <... mount resumed>) = 0 [pid 9045] <... write resumed>) = 4 [pid 9044] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9045] close(3 [pid 9044] <... openat resumed>) = 4 [pid 9044] chdir(".") = 0 [pid 9044] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9045] <... close resumed>) = 0 [pid 9044] <... futex resumed>) = 1 [pid 9037] <... futex resumed>) = 0 [pid 9037] exit_group(0 [pid 9038] <... futex resumed>) = ? [pid 9037] <... exit_group resumed>) = ? [pid 9038] +++ exited with 0 +++ [pid 9045] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9044] +++ exited with 0 +++ [pid 9037] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9037, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./227", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./227", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9045] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] fstat(3, [pid 9045] <... futex resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] getdents64(3, [pid 9045] <... mmap resumed>) = 0x7f38e1b78000 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9045] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] umount2("./227/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9045] <... mprotect resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9045] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] lstat("./227/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9045] <... clone resumed>, parent_tid=[9046], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9046 [pid 5000] unlink("./227/binderfs" [pid 9045] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... unlink resumed>) = 0 [pid 9045] <... futex resumed>) = 0 [pid 5000] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9045] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9046 attached [pid 9046] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9046] memfd_create("syzkaller", 0) = 3 [pid 9046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9046] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 9046] munmap(0x7f38d9778000, 4194304) = 0 [pid 9046] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9046] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9046] close(3) = 0 [pid 9046] mkdir("./file0", 0777) = 0 [pid 9046] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4999] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./227/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./227/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./227/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./227") = 0 [pid 4998] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./227/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./227/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] mkdir("./228", 0777) = 0 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./227/file0") = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4998] getdents64(3, [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9048 ./strace-static-x86_64: Process 9048 attached [pid 5000] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] close(3) = 0 [pid 4998] rmdir("./227") = 0 [pid 4998] mkdir("./228", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 238.172759][ T9046] loop5: detected capacity change from 0 to 8192 [ 238.191741][ T9046] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 238.205174][ T9046] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 238.215504][ T9046] REISERFS (device loop5): using ordered data mode [pid 4998] <... close resumed>) = 0 [pid 5000] lstat("./227/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9049 attached [pid 9048] set_robust_list(0x555556b565e0, 24 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./227/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9049] set_robust_list(0x555556b565e0, 24 [pid 5000] <... openat resumed>) = 4 [pid 9049] <... set_robust_list resumed>) = 0 [pid 9048] <... set_robust_list resumed>) = 0 [pid 5000] fstat(4, [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9049 [pid 9049] chdir("./228" [pid 9048] chdir("./228" [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9049] <... chdir resumed>) = 0 [pid 9048] <... chdir resumed>) = 0 [pid 5000] getdents64(4, [pid 9049] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9049] <... prctl resumed>) = 0 [pid 9048] <... prctl resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./227/file0" [pid 9049] setpgid(0, 0 [pid 9048] setpgid(0, 0 [pid 5000] <... rmdir resumed>) = 0 [pid 9049] <... setpgid resumed>) = 0 [pid 9048] <... setpgid resumed>) = 0 [pid 9049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] getdents64(3, [pid 9049] <... openat resumed>) = 3 [pid 9048] <... openat resumed>) = 3 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9049] write(3, "1000", 4 [pid 9048] write(3, "1000", 4 [pid 5000] close(3 [pid 9049] <... write resumed>) = 4 [pid 9048] <... write resumed>) = 4 [pid 5000] <... close resumed>) = 0 [pid 9049] close(3 [pid 9048] close(3 [pid 5000] rmdir("./227" [pid 9049] <... close resumed>) = 0 [pid 9048] <... close resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 9049] symlink("/dev/binderfs", "./binderfs" [pid 9048] symlink("/dev/binderfs", "./binderfs" [pid 5000] mkdir("./228", 0777 [pid 9049] <... symlink resumed>) = 0 [pid 9048] <... symlink resumed>) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 9049] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9048] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9049] <... futex resumed>) = 0 [pid 9048] <... futex resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 9049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9049] <... mmap resumed>) = 0x7f38e1b78000 [pid 9048] <... mmap resumed>) = 0x7f38e1b78000 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9049] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9048] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] close(3 [pid 9049] <... mprotect resumed>) = 0 [pid 9048] <... mprotect resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 9049] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9048] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9049] <... clone resumed>, parent_tid=[9050], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9050 [pid 9048] <... clone resumed>, parent_tid=[9051], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9051 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9052 ./strace-static-x86_64: Process 9052 attached ./strace-static-x86_64: Process 9051 attached ./strace-static-x86_64: Process 9050 attached [pid 9049] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9052] set_robust_list(0x555556b565e0, 24 [pid 9051] set_robust_list(0x7f38e1b989e0, 24 [pid 9050] set_robust_list(0x7f38e1b989e0, 24 [pid 9052] <... set_robust_list resumed>) = 0 [pid 9051] <... set_robust_list resumed>) = 0 [pid 9050] <... set_robust_list resumed>) = 0 [pid 9052] chdir("./228" [pid 9051] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9050] memfd_create("syzkaller", 0 [pid 9052] <... chdir resumed>) = 0 [pid 9050] <... memfd_create resumed>) = 3 [pid 9052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9052] <... prctl resumed>) = 0 [pid 9050] <... mmap resumed>) = 0x7f38d9778000 [pid 9052] setpgid(0, 0 [pid 9049] <... futex resumed>) = 0 [pid 9048] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9052] <... setpgid resumed>) = 0 [pid 9051] <... futex resumed>) = 0 [pid 9049] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9048] <... futex resumed>) = 1 [pid 9052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9051] memfd_create("syzkaller", 0 [pid 9048] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9052] <... openat resumed>) = 3 [pid 9051] <... memfd_create resumed>) = 3 [pid 9052] write(3, "1000", 4 [ 238.222337][ T9046] reiserfs: using flush barriers [ 238.236166][ T9046] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 238.252734][ T9046] REISERFS (device loop5): checking transaction log (loop5) [ 238.263636][ T9046] REISERFS (device loop5): Using r5 hash to sort names [pid 9051] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9052] <... write resumed>) = 4 [pid 9051] <... mmap resumed>) = 0x7f38d9778000 [pid 9052] close(3 [pid 9050] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9052] <... close resumed>) = 0 [pid 9052] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9052] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9052] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9052] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9053], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9053 [pid 9052] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9052] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9053 attached [pid 9053] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9053] memfd_create("syzkaller", 0) = 3 [pid 9053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9050] <... write resumed>) = 4194304 [pid 9051] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9050] munmap(0x7f38d9778000, 4194304 [pid 9046] <... mount resumed>) = 0 [pid 9050] <... munmap resumed>) = 0 [pid 9046] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9050] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9046] <... openat resumed>) = 3 [pid 9050] ioctl(4, LOOP_SET_FD, 3 [ 238.280673][ T9046] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.314478][ T9046] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9046] chdir("./file0" [pid 9050] <... ioctl resumed>) = 0 [pid 9046] <... chdir resumed>) = 0 [pid 9050] close(3 [pid 9046] ioctl(4, LOOP_CLR_FD [pid 9050] <... close resumed>) = 0 [pid 9046] <... ioctl resumed>) = 0 [pid 9050] mkdir("./file0", 0777 [pid 9046] close(4 [pid 9050] <... mkdir resumed>) = 0 [pid 9046] <... close resumed>) = 0 [pid 9046] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9050] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9053] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9046] <... futex resumed>) = 1 [pid 9045] <... futex resumed>) = 0 [pid 9045] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9045] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9046] mkdir("./file1", 000) = 0 [pid 9046] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9045] <... futex resumed>) = 0 [pid 9046] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9045] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9045] <... futex resumed>) = 0 [pid 9046] mkdir("./bus", 000 [ 238.329038][ T9050] loop0: detected capacity change from 0 to 8192 [pid 9045] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9046] <... mkdir resumed>) = 0 [pid 9046] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9045] <... futex resumed>) = 0 [pid 9046] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9045] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9045] <... futex resumed>) = 0 [pid 9046] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9045] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9053] <... write resumed>) = 4194304 [pid 9053] munmap(0x7f38d9778000, 4194304) = 0 [pid 9053] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9053] ioctl(4, LOOP_SET_FD, 3 [pid 9051] <... write resumed>) = 4194304 [pid 9053] <... ioctl resumed>) = 0 [pid 9053] close(3) = 0 [pid 9053] mkdir("./file0", 0777) = 0 [pid 9053] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 238.377140][ T9046] overlayfs: upper fs needs to support d_type. [ 238.383363][ T9046] overlayfs: upper fs does not support tmpfile. [ 238.390055][ T9050] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 238.404270][ T9053] loop2: detected capacity change from 0 to 8192 [ 238.406831][ T9046] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 238.418093][ T9050] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9051] munmap(0x7f38d9778000, 4194304) = 0 [pid 9045] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9045] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9051] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9045] <... futex resumed>) = 0 [pid 9051] <... openat resumed>) = 4 [pid 9051] ioctl(4, LOOP_SET_FD, 3 [pid 9045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9046] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9045] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9046] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9046] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9045] <... mprotect resumed>) = 0 [pid 9051] <... ioctl resumed>) = 0 [pid 9051] close(3) = 0 [pid 9045] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9051] mkdir("./file0", 0777 [pid 9045] <... clone resumed>, parent_tid=[9056], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9056 [pid 9051] <... mkdir resumed>) = 0 [ 238.421604][ T9046] overlayfs: failed to resolve './file0': -2 [ 238.428897][ T9050] REISERFS (device loop0): using ordered data mode [ 238.435332][ T9053] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 238.440742][ T9051] loop1: detected capacity change from 0 to 8192 [ 238.453609][ T9053] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 238.460042][ T9050] reiserfs: using flush barriers [pid 9051] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9045] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9056 attached [pid 9056] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9056] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9056] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9045] <... futex resumed>) = 0 [ 238.477424][ T9053] REISERFS (device loop2): using ordered data mode [ 238.481520][ T9051] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 238.484237][ T9053] reiserfs: using flush barriers [ 238.498817][ T9051] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 238.502365][ T9050] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 9045] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 238.512534][ T9051] REISERFS (device loop1): using ordered data mode [ 238.532260][ T9053] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 238.536185][ T9051] reiserfs: using flush barriers [ 238.553403][ T9050] REISERFS (device loop0): checking transaction log (loop0) [ 238.558654][ T9053] REISERFS (device loop2): checking transaction log (loop2) [pid 9056] <... mount resumed>) = 0 [pid 9056] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9056] chdir(".") = 0 [pid 9056] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9045] <... futex resumed>) = 0 [pid 9056] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9045] exit_group(0 [pid 9056] <... futex resumed>) = ? [pid 9046] <... futex resumed>) = ? [pid 9045] <... exit_group resumed>) = ? [pid 9056] +++ exited with 0 +++ [pid 9046] +++ exited with 0 +++ [pid 9045] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9045, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5003] umount2("./228", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./228", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./228/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./228/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./228/binderfs") = 0 [ 238.572266][ T9051] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 238.572415][ T9050] REISERFS (device loop0): Using r5 hash to sort names [ 238.596324][ T9051] REISERFS (device loop1): checking transaction log (loop1) [ 238.597013][ T9050] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.604785][ T9051] REISERFS (device loop1): Using r5 hash to sort names [ 238.617979][ T9053] REISERFS (device loop2): Using r5 hash to sort names [ 238.623432][ T9051] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.631961][ T9053] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.643417][ T9051] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 238.657410][ T9050] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5003] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9051] <... mount resumed>) = 0 [pid 9050] <... mount resumed>) = 0 [pid 9053] <... mount resumed>) = 0 [pid 9051] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9050] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9051] <... openat resumed>) = 3 [pid 9051] chdir("./file0") = 0 [pid 9051] ioctl(4, LOOP_CLR_FD) = 0 [pid 9051] close(4) = 0 [pid 9051] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9051] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9053] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9050] <... openat resumed>) = 3 [pid 9053] <... openat resumed>) = 3 [pid 9050] chdir("./file0" [pid 9053] chdir("./file0" [pid 9050] <... chdir resumed>) = 0 [pid 9053] <... chdir resumed>) = 0 [pid 9050] ioctl(4, LOOP_CLR_FD [pid 9053] ioctl(4, LOOP_CLR_FD [pid 9050] <... ioctl resumed>) = 0 [pid 9053] <... ioctl resumed>) = 0 [pid 9050] close(4) = 0 [pid 9053] close(4 [pid 9050] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9049] <... futex resumed>) = 0 [pid 9048] <... futex resumed>) = 0 [pid 9049] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9048] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9051] <... futex resumed>) = 0 [pid 9049] <... futex resumed>) = 0 [pid 9048] <... futex resumed>) = 1 [pid 9051] mkdir("./file1", 000 [pid 9049] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9048] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9051] <... mkdir resumed>) = 0 [pid 9051] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9048] <... futex resumed>) = 0 [pid 9051] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9048] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9051] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9048] <... futex resumed>) = 0 [pid 9051] mkdir("./bus", 000 [pid 9048] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9051] <... mkdir resumed>) = 0 [pid 9051] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9053] <... close resumed>) = 0 [pid 9051] <... futex resumed>) = 1 [pid 9050] mkdir("./file1", 000 [pid 9048] <... futex resumed>) = 0 [pid 9053] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9051] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9050] <... mkdir resumed>) = 0 [pid 9048] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9053] <... futex resumed>) = 1 [pid 9052] <... futex resumed>) = 0 [pid 9051] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9050] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9048] <... futex resumed>) = 0 [pid 9052] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9051] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9048] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9052] <... futex resumed>) = 0 [pid 9053] mkdir("./file1", 000 [pid 9050] <... futex resumed>) = 1 [pid 9053] <... mkdir resumed>) = 0 [pid 9052] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9050] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9049] <... futex resumed>) = 0 [ 238.665559][ T9053] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9053] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9053] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9052] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9049] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9052] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9049] <... futex resumed>) = 1 [pid 9053] <... futex resumed>) = 0 [pid 9052] <... futex resumed>) = 1 [pid 9050] <... futex resumed>) = 0 [pid 9049] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9053] mkdir("./bus", 000 [pid 9050] mkdir("./bus", 000 [pid 9053] <... mkdir resumed>) = 0 [pid 9052] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9050] <... mkdir resumed>) = 0 [pid 9053] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9052] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9050] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9053] <... futex resumed>) = 0 [pid 9052] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9050] <... futex resumed>) = 1 [pid 9049] <... futex resumed>) = 0 [pid 9053] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9052] <... futex resumed>) = 0 [pid 9050] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9049] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9049] <... futex resumed>) = 0 [pid 9050] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9049] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 238.705035][ T9051] overlayfs: upper fs needs to support d_type. [ 238.728780][ T9053] overlayfs: upper fs needs to support d_type. [ 238.735155][ T9053] overlayfs: upper fs does not support tmpfile. [ 238.736367][ T9051] overlayfs: upper fs does not support tmpfile. [ 238.744085][ T9050] overlayfs: upper fs needs to support d_type. [pid 9052] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9048] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5003] <... umount2 resumed>) = 0 [pid 9048] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9048] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9048] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5003] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9048] <... clone resumed>, parent_tid=[9058], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9058 [pid 9048] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9048] <... futex resumed>) = 0 [pid 9048] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] lstat("./228/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./228/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 9058 attached [pid 9058] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9058] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9058] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 5003] <... openat resumed>) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9049] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9049] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] close(4 [pid 9049] <... futex resumed>) = 0 [pid 9049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 5003] <... close resumed>) = 0 [pid 9049] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5003] rmdir("./228/file0" [pid 9049] <... mprotect resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5003] getdents64(3, [pid 9049] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9049] <... clone resumed>, parent_tid=[9059], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9059 [pid 5003] close(3 [pid 9058] <... mount resumed>) = 0 [pid 9049] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... close resumed>) = 0 [pid 9058] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9049] <... futex resumed>) = 0 [pid 5003] rmdir("./228" [pid 9058] <... openat resumed>) = 4 [pid 9049] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9058] chdir(".") = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 9058] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] mkdir("./229", 0777 [pid 9058] <... futex resumed>) = 1 [pid 9048] <... futex resumed>) = 0 [pid 9058] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... mkdir resumed>) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5003] close(3 [pid 9052] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 238.754813][ T9050] overlayfs: upper fs does not support tmpfile. [ 238.765637][ T9053] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 238.773439][ T9051] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 238.776161][ T9050] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9052] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... close resumed>) = 0 ./strace-static-x86_64: Process 9059 attached [pid 9052] <... futex resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9059] set_robust_list(0x7f38d9b779e0, 24 [pid 9052] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9059] <... set_robust_list resumed>) = 0 [pid 9052] <... mprotect resumed>) = 0 [pid 9059] mkdir(".", 0777 [pid 9052] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9059] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9059] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9052] <... clone resumed>, parent_tid=[9060], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9060 [pid 9052] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9061 [pid 9052] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9060 attached [pid 9060] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9060] mkdir(".", 0777 [pid 9059] <... mount resumed>) = 0 [pid 9060] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9060] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9059] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9059] chdir(".") = 0 [pid 9059] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9049] <... futex resumed>) = 0 [pid 9059] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9053] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9053] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9053] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9061 attached [pid 9061] set_robust_list(0x555556b565e0, 24) = 0 [pid 9061] chdir("./229") = 0 [pid 9060] <... mount resumed>) = 0 [pid 9061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9061] setpgid(0, 0 [pid 9060] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9061] <... setpgid resumed>) = 0 [pid 9061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9060] <... openat resumed>) = 4 [pid 9061] <... openat resumed>) = 3 [pid 9061] write(3, "1000", 4 [pid 9060] chdir("." [pid 9061] <... write resumed>) = 4 [pid 9061] close(3) = 0 [pid 9061] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9061] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9061] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [ 238.805640][ T9053] overlayfs: failed to resolve './file0': -2 [ 238.837227][ T9050] overlayfs: failed to resolve './file0': -2 [pid 9061] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9062], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9062 [pid 9061] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9061] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9060] <... chdir resumed>) = 0 [pid 9060] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9062 attached [pid 9062] set_robust_list(0x7f38e1b989e0, 24 [pid 9052] <... futex resumed>) = 0 [pid 9060] <... futex resumed>) = 1 [pid 9060] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9052] exit_group(0 [pid 9060] <... futex resumed>) = ? [pid 9053] <... futex resumed>) = ? [pid 9052] <... exit_group resumed>) = ? [pid 9060] +++ exited with 0 +++ [pid 9053] +++ exited with 0 +++ [pid 9062] <... set_robust_list resumed>) = 0 [pid 9062] memfd_create("syzkaller", 0 [pid 9052] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9052, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 9062] <... memfd_create resumed>) = 3 [pid 9062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5000] umount2("./228", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./228", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./228/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./228/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./228/binderfs") = 0 [pid 5000] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 238.851097][ T9051] overlayfs: failed to resolve './file0': -2 [pid 9062] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9051] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9050] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9051] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9050] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9049] exit_group(0 [pid 9048] exit_group(0 [pid 9059] <... futex resumed>) = ? [pid 9058] <... futex resumed>) = ? [pid 9051] <... futex resumed>) = ? [pid 9050] <... futex resumed>) = ? [pid 9049] <... exit_group resumed>) = ? [pid 9048] <... exit_group resumed>) = ? [pid 9059] +++ exited with 0 +++ [pid 9058] +++ exited with 0 +++ [pid 9051] +++ exited with 0 +++ [pid 9050] +++ exited with 0 +++ [pid 9049] +++ exited with 0 +++ [pid 9048] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9049, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./228", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./228", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9048, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=26 /* 0.26 s */} --- [pid 4998] getdents64(3, [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./228/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./228/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./228/binderfs") = 0 [pid 4998] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... restart_syscall resumed>) = 0 [pid 4999] umount2("./228", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./228", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./228/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./228/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./228/binderfs") = 0 [pid 4999] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9062] <... write resumed>) = 4194304 [pid 9062] munmap(0x7f38d9778000, 4194304) = 0 [pid 9062] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9062] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... umount2 resumed>) = 0 [pid 9062] <... ioctl resumed>) = 0 [pid 9062] close(3) = 0 [pid 9062] mkdir("./file0", 0777) = 0 [pid 9062] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5000] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./228/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./228/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./228/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./228") = 0 [pid 5000] mkdir("./229", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./228/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./228/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./228/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./228") = 0 [pid 4998] mkdir("./229", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] lstat("./228/file0", [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9065 ./strace-static-x86_64: Process 9065 attached [pid 9065] set_robust_list(0x555556b565e0, 24 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9064 [pid 4999] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9065] <... set_robust_list resumed>) = 0 [pid 9065] chdir("./229") = 0 [pid 9065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./228/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 9064 attached ) = 4 [pid 4999] fstat(4, [pid 9064] set_robust_list(0x555556b565e0, 24 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9064] <... set_robust_list resumed>) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9064] chdir("./229" [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9064] <... chdir resumed>) = 0 [pid 4999] close(4 [pid 9064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] <... close resumed>) = 0 [pid 9064] <... prctl resumed>) = 0 [pid 4999] rmdir("./228/file0" [pid 9064] setpgid(0, 0) = 0 [pid 4999] <... rmdir resumed>) = 0 [ 238.953551][ T9062] loop5: detected capacity change from 0 to 8192 [ 238.978924][ T9062] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9064] <... openat resumed>) = 3 [pid 4999] close(3) = 0 [pid 9064] write(3, "1000", 4 [pid 4999] rmdir("./228" [pid 9064] <... write resumed>) = 4 [pid 9065] <... prctl resumed>) = 0 [pid 9064] close(3 [pid 4999] <... rmdir resumed>) = 0 [pid 4999] mkdir("./229", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9064] <... close resumed>) = 0 [pid 9064] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9064] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9066 [pid 9064] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9064] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9065] setpgid(0, 0 [pid 9064] <... clone resumed>, parent_tid=[9067], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9067 ./strace-static-x86_64: Process 9066 attached [pid 9066] set_robust_list(0x555556b565e0, 24) = 0 [pid 9066] chdir("./229") = 0 [pid 9064] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9064] <... futex resumed>) = 0 [pid 9066] setpgid(0, 0 [pid 9065] <... setpgid resumed>) = 0 [pid 9064] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9066] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 9067 attached [pid 9066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9067] set_robust_list(0x7f38e1b989e0, 24 [pid 9066] <... openat resumed>) = 3 [pid 9067] <... set_robust_list resumed>) = 0 [pid 9066] write(3, "1000", 4 [pid 9067] memfd_create("syzkaller", 0 [pid 9066] <... write resumed>) = 4 [pid 9067] <... memfd_create resumed>) = 3 [pid 9066] close(3 [pid 9067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9066] <... close resumed>) = 0 [pid 9067] <... mmap resumed>) = 0x7f38d9778000 [pid 9066] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9066] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9066] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9066] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9068], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9068 [pid 9066] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9066] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9065] <... openat resumed>) = 3 [pid 9065] write(3, "1000", 4) = 4 [pid 9065] close(3) = 0 [pid 9065] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9065] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9065] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9065] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9069], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9069 [pid 9065] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9065] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9069 attached [pid 9069] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9069] memfd_create("syzkaller", 0) = 3 [pid 9069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9068 attached [pid 9068] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9068] memfd_create("syzkaller", 0) = 3 [pid 9068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 239.036495][ T9062] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 239.046341][ T9062] REISERFS (device loop5): using ordered data mode [ 239.052976][ T9062] reiserfs: using flush barriers [ 239.060228][ T9062] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 9067] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9067] <... write resumed>) = 4194304 [pid 9067] munmap(0x7f38d9778000, 4194304) = 0 [pid 9067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 239.103678][ T9062] REISERFS (device loop5): checking transaction log (loop5) [ 239.120199][ T9062] REISERFS (device loop5): Using r5 hash to sort names [ 239.138405][ T9062] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9067] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9067] close(3) = 0 [pid 9067] mkdir("./file0", 0777) = 0 [pid 9067] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9062] <... mount resumed>) = 0 [pid 9062] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9062] chdir("./file0") = 0 [ 239.152843][ T9067] loop2: detected capacity change from 0 to 8192 [ 239.163395][ T9067] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.173314][ T9062] REISERFS (device loop5): reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.176461][ T9067] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 239.197659][ T9067] REISERFS (device loop2): using ordered data mode [pid 9062] ioctl(4, LOOP_CLR_FD) = 0 [pid 9062] close(4) = 0 [pid 9062] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9062] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9061] <... futex resumed>) = 0 [pid 9061] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9068] <... write resumed>) = 4194304 [pid 9062] <... futex resumed>) = 0 [pid 9061] <... futex resumed>) = 1 [ 239.204223][ T9067] reiserfs: using flush barriers [ 239.210020][ T9067] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 239.226575][ T9067] REISERFS (device loop2): checking transaction log (loop2) [ 239.234620][ T9067] REISERFS (device loop2): Using r5 hash to sort names [ 239.241715][ T9067] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9062] mkdir("./file1", 000) = 0 [pid 9062] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9062] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9068] munmap(0x7f38d9778000, 4194304) = 0 [pid 9068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9061] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9067] <... mount resumed>) = 0 [pid 9061] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9068] <... openat resumed>) = 4 [pid 9067] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9061] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9068] ioctl(4, LOOP_SET_FD, 3 [pid 9067] <... openat resumed>) = 3 [pid 9062] <... futex resumed>) = 0 [pid 9061] <... futex resumed>) = 1 [pid 9069] <... write resumed>) = 4194304 [pid 9067] chdir("./file0" [pid 9061] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9069] munmap(0x7f38d9778000, 4194304 [pid 9067] <... chdir resumed>) = 0 [pid 9069] <... munmap resumed>) = 0 [pid 9067] ioctl(4, LOOP_CLR_FD) = 0 [pid 9067] close(4) = 0 [pid 9067] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9067] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9069] ioctl(4, LOOP_SET_FD, 3 [pid 9064] <... futex resumed>) = 0 [pid 9062] mkdir("./bus", 000 [pid 9069] <... ioctl resumed>) = 0 [pid 9069] close(3) = 0 [pid 9069] mkdir("./file0", 0777 [pid 9062] <... mkdir resumed>) = 0 [pid 9064] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9062] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9064] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9067] <... futex resumed>) = 0 [pid 9062] <... futex resumed>) = 1 [pid 9061] <... futex resumed>) = 0 [pid 9067] mkdir("./file1", 000 [pid 9061] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9067] <... mkdir resumed>) = 0 [pid 9061] <... futex resumed>) = 0 [pid 9067] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9061] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9067] <... futex resumed>) = 1 [pid 9067] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9064] <... futex resumed>) = 0 [pid 9062] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9064] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9067] mkdir("./bus", 000) = 0 [pid 9064] <... futex resumed>) = 0 [pid 9067] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9067] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9069] <... mkdir resumed>) = 0 [pid 9069] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9068] <... ioctl resumed>) = 0 [pid 9068] close(3) = 0 [pid 9068] mkdir("./file0", 0777) = 0 [pid 9068] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9064] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9064] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9067] <... futex resumed>) = 0 [pid 9067] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 239.254463][ T9067] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 239.268468][ T9068] loop1: detected capacity change from 0 to 8192 [ 239.272673][ T9069] loop0: detected capacity change from 0 to 8192 [ 239.284453][ T9062] overlayfs: upper fs needs to support d_type. [ 239.291719][ T9062] overlayfs: upper fs does not support tmpfile. [ 239.292718][ T9067] overlayfs: upper fs needs to support d_type. [pid 9064] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9061] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9061] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9062] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9061] <... mmap resumed>) = 0x7f38d9b57000 [pid 9062] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9061] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9062] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9061] <... mprotect resumed>) = 0 [pid 9061] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9073], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9073 [pid 9061] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 239.298780][ T9062] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 239.305026][ T9069] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.322246][ T9062] overlayfs: failed to resolve './file0': -2 [ 239.324634][ T9068] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.330510][ T9067] overlayfs: upper fs does not support tmpfile. [pid 9061] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9073 attached [pid 9064] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9064] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9064] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9064] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9074], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9074 [pid 9064] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9064] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9074 attached [pid 9074] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9074] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9074] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9073] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9073] mkdir(".", 0777 [pid 9074] <... mount resumed>) = 0 [pid 9074] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9074] chdir(".") = 0 [pid 9074] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9064] <... futex resumed>) = 0 [pid 9074] <... futex resumed>) = 1 [pid 9074] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9073] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9073] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9067] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9067] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 239.350879][ T9067] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 239.358305][ T9069] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 239.359822][ T9067] overlayfs: failed to resolve './file0': -2 [ 239.374549][ T9068] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 239.380177][ T9069] REISERFS (device loop0): using ordered data mode [ 239.390826][ T9068] REISERFS (device loop1): using ordered data mode [ 239.391518][ T9069] reiserfs: using flush barriers [pid 9067] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9073] <... mount resumed>) = 0 [pid 9073] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9073] chdir(".") = 0 [pid 9073] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9061] <... futex resumed>) = 0 [pid 9061] exit_group(0) = ? [pid 9073] <... futex resumed>) = ? [pid 9073] +++ exited with 0 +++ [pid 9064] exit_group(0 [pid 9074] <... futex resumed>) = ? [pid 9067] <... futex resumed>) = ? [pid 9074] +++ exited with 0 +++ [pid 9067] +++ exited with 0 +++ [pid 9064] <... exit_group resumed>) = ? [pid 9064] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9064, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./229", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./229", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./229/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./229/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./229/binderfs") = 0 [pid 5000] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9062] <... futex resumed>) = ? [pid 9062] +++ exited with 0 +++ [pid 9061] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9061, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [ 239.397612][ T9068] reiserfs: using flush barriers [ 239.409130][ T9068] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 239.424735][ T9069] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 239.426628][ T9068] REISERFS (device loop1): checking transaction log (loop1) [pid 5003] umount2("./229", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./229", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./229/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./229/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./229/binderfs") = 0 [pid 5003] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9068] <... mount resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 239.452048][ T9068] REISERFS (device loop1): Using r5 hash to sort names [ 239.459162][ T9069] REISERFS (device loop0): checking transaction log (loop0) [ 239.467212][ T9068] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 239.480483][ T9068] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 239.489893][ T9069] REISERFS (device loop0): Using r5 hash to sort names [pid 5000] lstat("./229/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./229/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./229/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./229") = 0 [pid 5000] mkdir("./230", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 9068] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9075 ./strace-static-x86_64: Process 9075 attached [pid 9075] set_robust_list(0x555556b565e0, 24) = 0 [pid 9075] chdir("./230") = 0 [pid 9075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9075] setpgid(0, 0) = 0 [pid 9075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9075] write(3, "1000", 4) = 4 [pid 9075] close(3) = 0 [pid 9075] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9075] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9075] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9068] <... openat resumed>) = 3 [pid 9068] chdir("./file0") = 0 [pid 9068] ioctl(4, LOOP_CLR_FD) = 0 [pid 9068] close(4) = 0 [pid 9068] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9066] <... futex resumed>) = 0 [pid 9068] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9066] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9066] <... futex resumed>) = 0 [pid 9068] mkdir("./file1", 000 [pid 9066] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9068] <... mkdir resumed>) = 0 [pid 9068] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9066] <... futex resumed>) = 0 [pid 9068] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9066] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9066] <... futex resumed>) = 0 [pid 9068] mkdir("./bus", 000 [pid 9066] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9068] <... mkdir resumed>) = 0 [pid 9068] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9066] <... futex resumed>) = 0 [pid 9068] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9066] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9066] <... futex resumed>) = 0 [pid 9068] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9066] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9075] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9075] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9076], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9076 [pid 9075] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9075] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9076 attached [pid 9076] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9076] memfd_create("syzkaller", 0) = 3 [pid 9076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = 0 [ 239.516321][ T9069] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 239.553266][ T9068] overlayfs: upper fs needs to support d_type. [pid 5003] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./229/file0", [pid 9076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9066] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9066] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9066] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9066] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5003] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./229/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9066] <... clone resumed>, parent_tid=[9077], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9077 [pid 5003] <... openat resumed>) = 4 [pid 9069] <... mount resumed>) = 0 [pid 9066] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] fstat(4, [pid 9066] <... futex resumed>) = 0 [pid 9066] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9069] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5003] getdents64(4, ./strace-static-x86_64: Process 9077 attached [pid 9077] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9077] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9077] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9069] chdir("./file0" [pid 5003] getdents64(4, [pid 9069] <... chdir resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9069] ioctl(4, LOOP_CLR_FD [pid 5003] close(4 [pid 9069] <... ioctl resumed>) = 0 [pid 9068] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] <... close resumed>) = 0 [pid 9069] close(4 [pid 9068] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] rmdir("./229/file0" [pid 9069] <... close resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 9077] <... mount resumed>) = 0 [pid 9077] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9077] chdir(".") = 0 [pid 9077] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9066] <... futex resumed>) = 0 [pid 9066] exit_group(0) = ? [pid 9077] <... futex resumed>) = ? [pid 9077] +++ exited with 0 +++ [pid 9069] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9068] <... futex resumed>) = ? [pid 5003] getdents64(3, [pid 9069] <... futex resumed>) = 1 [pid 9065] <... futex resumed>) = 0 [pid 9069] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9065] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9065] <... futex resumed>) = 0 [pid 5003] close(3 [pid 9069] mkdir("./file1", 000 [pid 9065] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... close resumed>) = 0 [pid 9069] <... mkdir resumed>) = 0 [pid 5003] rmdir("./229" [pid 9069] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9065] <... futex resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 9069] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9065] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] mkdir("./230", 0777 [pid 9069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9068] +++ exited with 0 +++ [pid 9066] +++ exited with 0 +++ [pid 9065] <... futex resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9066, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 4999] umount2("./229", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./229", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9069] mkdir("./bus", 000 [pid 9065] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... openat resumed>) = 3 [pid 9069] <... mkdir resumed>) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 4999] fstat(3, [pid 9069] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9069] <... futex resumed>) = 1 [pid 9065] <... futex resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 4999] getdents64(3, [pid 9069] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9065] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9065] <... futex resumed>) = 0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] umount2("./229/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9069] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9065] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] close(3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./229/binderfs", [pid 5003] <... close resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./229/binderfs") = 0 [pid 4999] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 239.572792][ T9068] overlayfs: upper fs does not support tmpfile. [ 239.592336][ T9069] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 239.602764][ T9068] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 239.611691][ T9068] overlayfs: failed to resolve './file0': -2 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9078 ./strace-static-x86_64: Process 9078 attached [pid 9078] set_robust_list(0x555556b565e0, 24) = 0 [pid 9078] chdir("./230") = 0 [pid 9078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9078] setpgid(0, 0) = 0 [pid 9078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9078] write(3, "1000", 4) = 4 [pid 9065] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9078] close(3 [pid 9065] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9078] <... close resumed>) = 0 [pid 9065] <... futex resumed>) = 0 [pid 9078] symlink("/dev/binderfs", "./binderfs" [pid 9065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9065] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9078] <... symlink resumed>) = 0 [pid 9065] <... mprotect resumed>) = 0 [pid 9078] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9065] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9078] <... futex resumed>) = 0 [pid 9078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9065] <... clone resumed>, parent_tid=[9079], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9079 [pid 9065] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9078] <... mmap resumed>) = 0x7f38e1b78000 [pid 9065] <... futex resumed>) = 0 [pid 9078] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9065] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9078] <... mprotect resumed>) = 0 [pid 9078] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9080], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9080 [pid 9078] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 239.651203][ T9069] overlayfs: upper fs needs to support d_type. [ 239.667685][ T9069] overlayfs: upper fs does not support tmpfile. [ 239.681413][ T9069] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9078] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9076] <... write resumed>) = 4194304 [pid 9076] munmap(0x7f38d9778000, 4194304./strace-static-x86_64: Process 9079 attached [pid 9079] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9079] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9079] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9076] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 9080 attached [pid 9076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9076] ioctl(4, LOOP_SET_FD, 3 [pid 9080] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9080] memfd_create("syzkaller", 0 [pid 9076] <... ioctl resumed>) = 0 [pid 9080] <... memfd_create resumed>) = 3 [pid 9069] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9076] close(3 [pid 9069] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9080] <... mmap resumed>) = 0x7f38d9778000 [pid 9079] <... mount resumed>) = 0 [pid 9076] <... close resumed>) = 0 [pid 9069] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9079] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9079] chdir(".") = 0 [pid 9079] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9065] <... futex resumed>) = 0 [pid 9079] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9065] exit_group(0 [pid 9079] <... futex resumed>) = ? [pid 9065] <... exit_group resumed>) = ? [pid 9079] +++ exited with 0 +++ [pid 9076] mkdir("./file0", 0777) = 0 [pid 9076] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 239.708951][ T9069] overlayfs: failed to resolve './file0': -2 [ 239.724341][ T9076] loop2: detected capacity change from 0 to 8192 [ 239.740161][ T9076] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9069] +++ exited with 0 +++ [pid 9065] +++ exited with 0 +++ [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./229/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./229/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./229/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./229") = 0 [pid 4999] mkdir("./230", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9065, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9082 [pid 4998] umount2("./229", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./229", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, ./strace-static-x86_64: Process 9082 attached 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./229/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./229/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9082] set_robust_list(0x555556b565e0, 24 [pid 4998] unlink("./229/binderfs") = 0 [pid 4998] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9082] <... set_robust_list resumed>) = 0 [pid 9082] chdir("./230") = 0 [pid 9082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9082] setpgid(0, 0) = 0 [pid 9082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9082] write(3, "1000", 4) = 4 [pid 9082] close(3) = 0 [pid 9082] symlink("/dev/binderfs", "./binderfs") = 0 [ 239.753495][ T9076] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 239.771381][ T9076] REISERFS (device loop2): using ordered data mode [ 239.778514][ T9076] reiserfs: using flush barriers [ 239.785449][ T9076] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 9082] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9082] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9082] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9083], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9083 [pid 9082] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9082] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9083 attached [pid 9083] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9083] memfd_create("syzkaller", 0) = 3 [pid 9083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9080] <... write resumed>) = 4194304 [pid 9080] munmap(0x7f38d9778000, 4194304 [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./229/file0", [pid 9080] <... munmap resumed>) = 0 [pid 9080] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 239.803063][ T9076] REISERFS (device loop2): checking transaction log (loop2) [ 239.816757][ T9076] REISERFS (device loop2): Using r5 hash to sort names [ 239.824033][ T9076] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9080] ioctl(4, LOOP_SET_FD, 3 [pid 9076] <... mount resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9076] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9076] <... openat resumed>) = 3 [pid 9076] chdir("./file0" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9076] <... chdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "./229/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9076] ioctl(4, LOOP_CLR_FD [pid 4998] <... openat resumed>) = 4 [pid 9076] <... ioctl resumed>) = 0 [pid 4998] fstat(4, [pid 9076] close(4 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9080] <... ioctl resumed>) = 0 [pid 9076] <... close resumed>) = 0 [pid 4998] getdents64(4, [pid 9080] close(3 [pid 9076] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9080] <... close resumed>) = 0 [pid 9076] <... futex resumed>) = 1 [pid 9075] <... futex resumed>) = 0 [pid 4998] getdents64(4, [pid 9080] mkdir("./file0", 0777 [pid 9076] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9075] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9080] <... mkdir resumed>) = 0 [pid 9076] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4998] close(4 [pid 9080] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9076] mkdir("./file1", 000 [pid 9075] <... futex resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 9076] <... mkdir resumed>) = 0 [pid 4998] rmdir("./229/file0" [pid 9076] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9075] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... rmdir resumed>) = 0 [pid 9076] <... futex resumed>) = 0 [pid 4998] getdents64(3, [pid 9076] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 9075] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./229" [pid 9076] <... futex resumed>) = 0 [pid 9075] <... futex resumed>) = 1 [pid 4998] <... rmdir resumed>) = 0 [pid 9076] mkdir("./bus", 000 [pid 4998] mkdir("./230", 0777 [pid 9076] <... mkdir resumed>) = 0 [pid 9075] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... mkdir resumed>) = 0 [pid 9076] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9076] <... futex resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9076] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4998] ioctl(3, LOOP_CLR_FD [pid 9075] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 239.854182][ T9076] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 239.857500][ T9080] loop5: detected capacity change from 0 to 8192 [pid 9076] <... futex resumed>) = 0 [pid 9075] <... futex resumed>) = 1 [pid 4998] close(3 [pid 9076] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9075] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9085 [pid 9083] <... write resumed>) = 4194304 [pid 9083] munmap(0x7f38d9778000, 4194304) = 0 [pid 9083] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9083] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9083] close(3) = 0 [pid 9083] mkdir("./file0", 0777) = 0 [pid 9083] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9085 attached [pid 9085] set_robust_list(0x555556b565e0, 24) = 0 [pid 9085] chdir("./230") = 0 [pid 9085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9085] setpgid(0, 0) = 0 [pid 9085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9085] write(3, "1000", 4) = 4 [pid 9085] close(3) = 0 [pid 9085] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9085] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9085] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9085] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9087], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9087 [pid 9085] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9085] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9087 attached [pid 9087] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9087] memfd_create("syzkaller", 0) = 3 [pid 9087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 239.914091][ T9083] loop1: detected capacity change from 0 to 8192 [ 239.916316][ T9080] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.935456][ T9076] overlayfs: upper fs needs to support d_type. [ 239.941858][ T9076] overlayfs: upper fs does not support tmpfile. [ 239.949020][ T9083] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9075] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9075] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9075] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9075] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9075] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9075] <... clone resumed>, parent_tid=[9088], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9088 [pid 9075] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9075] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9088 attached [pid 9088] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9088] mkdir(".", 0777) = -1 EEXIST (File exists) [ 239.949172][ T9076] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 239.969483][ T9080] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 239.972828][ T9083] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 239.992353][ T9083] REISERFS (device loop1): using ordered data mode [ 239.997311][ T9080] REISERFS (device loop5): using ordered data mode [ 240.005564][ T9080] reiserfs: using flush barriers [pid 9088] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9088] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9088] chdir(".") = 0 [pid 9088] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9075] <... futex resumed>) = 0 [pid 9088] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9087] <... write resumed>) = 4194304 [pid 9087] munmap(0x7f38d9778000, 4194304) = 0 [pid 9087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 240.013170][ T9083] reiserfs: using flush barriers [ 240.019732][ T9083] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 240.021267][ T9080] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 240.041507][ T9083] REISERFS (device loop1): checking transaction log (loop1) [ 240.053402][ T9076] overlayfs: failed to resolve './file0': -2 [ 240.059785][ T9080] REISERFS (device loop5): checking transaction log (loop5) [ 240.069595][ T9087] loop0: detected capacity change from 0 to 8192 [ 240.074067][ T9083] REISERFS (device loop1): Using r5 hash to sort names [ 240.086497][ T9080] REISERFS (device loop5): Using r5 hash to sort names [ 240.087055][ T9083] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9087] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9087] close(3 [pid 9076] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9087] <... close resumed>) = 0 [pid 9076] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9087] mkdir("./file0", 0777 [pid 9083] <... mount resumed>) = 0 [pid 9083] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9075] exit_group(0) = ? [pid 9087] <... mkdir resumed>) = 0 [pid 9088] <... futex resumed>) = ? [pid 9076] <... futex resumed>) = ? [pid 9087] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9088] +++ exited with 0 +++ [pid 9083] <... openat resumed>) = 3 [pid 9083] chdir("./file0") = 0 [pid 9083] ioctl(4, LOOP_CLR_FD) = 0 [pid 9083] close(4 [pid 9076] +++ exited with 0 +++ [pid 9075] +++ exited with 0 +++ [pid 9083] <... close resumed>) = 0 [pid 9083] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9082] <... futex resumed>) = 0 [pid 9082] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9082] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9083] <... futex resumed>) = 1 [pid 9083] mkdir("./file1", 000) = 0 [pid 9083] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9082] <... futex resumed>) = 0 [pid 9082] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9082] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9083] <... futex resumed>) = 1 [pid 9083] mkdir("./bus", 000 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9075, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 9083] <... mkdir resumed>) = 0 [pid 9083] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9082] <... futex resumed>) = 0 [pid 9082] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9082] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9083] <... futex resumed>) = 1 [pid 9083] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 5000] umount2("./230", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 240.093578][ T9080] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 240.106802][ T9083] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 240.132981][ T9080] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 240.146007][ T9083] overlayfs: upper fs needs to support d_type. [ 240.146135][ T9087] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] openat(AT_FDCWD, "./230", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./230/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./230/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./230/binderfs") = 0 [pid 5000] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9082] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9082] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9083] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9082] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 9083] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9082] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9080] <... mount resumed>) = 0 [pid 9083] <... futex resumed>) = 0 [pid 9083] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9082] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9083] <... futex resumed>) = 0 [pid 9082] <... futex resumed>) = 1 [pid 9083] mkdir(".", 0777 [pid 9082] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9083] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9083] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9083] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9083] chdir(".") = 0 [pid 9083] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9082] <... futex resumed>) = 0 [pid 9083] <... futex resumed>) = 1 [pid 9082] exit_group(0) = ? [pid 9083] +++ exited with 0 +++ [pid 9082] +++ exited with 0 +++ [pid 9080] <... openat resumed>) = 3 [pid 9080] chdir("./file0") = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9082, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 9080] ioctl(4, LOOP_CLR_FD [pid 4999] umount2("./230", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9080] <... ioctl resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 240.152667][ T9083] overlayfs: upper fs does not support tmpfile. [ 240.173243][ T9083] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 240.181540][ T9083] overlayfs: failed to resolve './file0': -2 [ 240.195249][ T9087] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 240.204553][ T9087] REISERFS (device loop0): using ordered data mode [pid 9080] close(4 [pid 4999] openat(AT_FDCWD, "./230", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9080] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 9080] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] fstat(3, [pid 9080] <... futex resumed>) = 1 [pid 9078] <... futex resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9080] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9078] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] getdents64(3, [pid 9080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9078] <... futex resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9080] mkdir("./file1", 000 [pid 9078] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] umount2("./230/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9080] <... mkdir resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9080] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] lstat("./230/binderfs", [pid 9080] <... futex resumed>) = 1 [pid 9078] <... futex resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9078] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9080] mkdir("./bus", 000 [pid 9078] <... futex resumed>) = 0 [pid 4999] unlink("./230/binderfs" [pid 9080] <... mkdir resumed>) = 0 [pid 9078] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9080] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... unlink resumed>) = 0 [pid 9080] <... futex resumed>) = 1 [pid 9078] <... futex resumed>) = 0 [pid 4999] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9080] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9078] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9078] <... futex resumed>) = 0 [pid 9080] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9078] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./230/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./230/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./230/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./230") = 0 [pid 5000] mkdir("./231", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9090 ./strace-static-x86_64: Process 9090 attached [pid 9090] set_robust_list(0x555556b565e0, 24) = 0 [ 240.211101][ T9087] reiserfs: using flush barriers [ 240.232724][ T9087] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 240.250165][ T9080] overlayfs: upper fs needs to support d_type. [ 240.250285][ T9087] REISERFS (device loop0): checking transaction log (loop0) [pid 9090] chdir("./231") = 0 [pid 9090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9090] setpgid(0, 0) = 0 [pid 9090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9090] write(3, "1000", 4) = 4 [pid 9090] close(3) = 0 [pid 9090] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9090] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9090] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9090] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9091], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9091 [pid 9090] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9090] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9091 attached [pid 9091] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9091] memfd_create("syzkaller", 0) = 3 [pid 9091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9080] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9078] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9078] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9080] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9080] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9078] <... futex resumed>) = 0 [pid 9078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9078] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9078] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9092], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9092 [pid 9078] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9078] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9092 attached [pid 9092] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9092] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9092] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9092] <... mount resumed>) = 0 [pid 9092] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9092] chdir(".") = 0 [pid 9092] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9078] <... futex resumed>) = 0 [pid 9092] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9078] exit_group(0 [pid 9092] <... futex resumed>) = ? [pid 9080] <... futex resumed>) = ? [pid 9078] <... exit_group resumed>) = ? [pid 9080] +++ exited with 0 +++ [pid 9092] +++ exited with 0 +++ [pid 9078] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9078, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5003] umount2("./230", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./230", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./230/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 240.266177][ T9080] overlayfs: upper fs does not support tmpfile. [ 240.273019][ T9080] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 240.278297][ T9087] REISERFS (device loop0): Using r5 hash to sort names [ 240.281612][ T9080] overlayfs: failed to resolve './file0': -2 [ 240.292847][ T9087] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5003] lstat("./230/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./230/binderfs") = 0 [pid 5003] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9091] <... write resumed>) = 4194304 [pid 9087] <... mount resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9091] munmap(0x7f38d9778000, 4194304 [pid 9087] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9087] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9087] chdir("./file0" [pid 4999] lstat("./230/file0", [pid 9087] <... chdir resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9087] ioctl(4, LOOP_CLR_FD [pid 4999] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9087] <... ioctl resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9087] close(4 [pid 4999] openat(AT_FDCWD, "./230/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9091] <... munmap resumed>) = 0 [pid 9091] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9087] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 9087] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] fstat(4, [pid 9087] <... futex resumed>) = 1 [pid 9085] <... futex resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9087] mkdir("./file1", 000 [pid 9085] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9087] <... mkdir resumed>) = 0 [pid 9085] <... futex resumed>) = 0 [pid 4999] getdents64(4, [pid 9087] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9085] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9087] <... futex resumed>) = 0 [pid 9085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9087] mkdir("./bus", 000 [pid 9085] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] getdents64(4, [pid 9087] <... mkdir resumed>) = 0 [pid 9085] <... futex resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9087] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9085] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] close(4 [pid 9087] <... futex resumed>) = 0 [pid 9085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] <... close resumed>) = 0 [pid 9087] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9085] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] rmdir("./230/file0" [pid 9087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9085] <... futex resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 9087] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9085] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] getdents64(3, [pid 9091] <... openat resumed>) = 4 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9091] ioctl(4, LOOP_SET_FD, 3 [pid 4999] close(3) = 0 [pid 4999] rmdir("./230") = 0 [pid 4999] mkdir("./231", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9093 ./strace-static-x86_64: Process 9093 attached [ 240.359927][ T9087] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 240.393822][ T9087] overlayfs: upper fs needs to support d_type. [ 240.401904][ T9091] loop2: detected capacity change from 0 to 8192 [pid 9093] set_robust_list(0x555556b565e0, 24 [pid 5003] <... umount2 resumed>) = 0 [pid 9093] <... set_robust_list resumed>) = 0 [pid 5003] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9093] chdir("./231" [pid 5003] lstat("./230/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9093] <... chdir resumed>) = 0 [pid 9093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9093] <... prctl resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./230/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9093] setpgid(0, 0) = 0 [pid 9093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] <... openat resumed>) = 4 [pid 5003] fstat(4, [pid 9091] <... ioctl resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9093] <... openat resumed>) = 3 [pid 9091] close(3 [pid 5003] getdents64(4, [pid 9093] write(3, "1000", 4) = 4 [pid 9093] close(3) = 0 [pid 9091] <... close resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9093] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9091] mkdir("./file0", 0777 [pid 5003] getdents64(4, [pid 9093] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9091] <... mkdir resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9091] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5003] close(4 [pid 9093] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5003] <... close resumed>) = 0 [pid 9093] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5003] rmdir("./230/file0") = 0 [pid 9093] <... clone resumed>, parent_tid=[9095], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9095 [pid 9093] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9093] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9095 attached [pid 9095] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9095] memfd_create("syzkaller", 0) = 3 [pid 9095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 240.405777][ T9087] overlayfs: upper fs does not support tmpfile. [ 240.429514][ T9087] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 240.434116][ T9091] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 240.449359][ T9087] overlayfs: failed to resolve './file0': -2 [pid 5003] getdents64(3, [pid 9085] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9085] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9085] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9085] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9096], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9096 [pid 9085] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9085] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9096 attached [pid 9096] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9096] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9096] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./230" [pid 9095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5003] <... rmdir resumed>) = 0 [pid 9087] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9087] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] mkdir("./231", 0777 [pid 9096] <... mount resumed>) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 9096] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9096] chdir(".") = 0 [pid 9096] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9085] <... futex resumed>) = 0 [pid 9096] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9085] exit_group(0 [pid 9096] <... futex resumed>) = ? [pid 9085] <... exit_group resumed>) = ? [pid 9096] +++ exited with 0 +++ [pid 9087] <... futex resumed>) = ? [pid 9087] +++ exited with 0 +++ [pid 9085] +++ exited with 0 +++ [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9085, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4998] umount2("./230", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] close(3 [pid 4998] openat(AT_FDCWD, "./230", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... close resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] fstat(3, [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9097 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./230/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./230/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./230/binderfs") = 0 [ 240.453413][ T9091] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 240.466756][ T9091] REISERFS (device loop2): using ordered data mode [ 240.473877][ T9091] reiserfs: using flush barriers [ 240.482236][ T9091] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 240.499109][ T9091] REISERFS (device loop2): checking transaction log (loop2) [pid 4998] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9097 attached [pid 9097] set_robust_list(0x555556b565e0, 24) = 0 [pid 9097] chdir("./231") = 0 [pid 9097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9097] setpgid(0, 0) = 0 [pid 9097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9097] write(3, "1000", 4 [pid 9091] <... mount resumed>) = 0 [pid 9097] <... write resumed>) = 4 [pid 9091] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9097] close(3 [pid 9091] <... openat resumed>) = 3 [pid 9097] <... close resumed>) = 0 [pid 9091] chdir("./file0" [pid 9097] symlink("/dev/binderfs", "./binderfs" [pid 9091] <... chdir resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 9097] <... symlink resumed>) = 0 [pid 9091] ioctl(4, LOOP_CLR_FD [pid 4998] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9097] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9091] <... ioctl resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9097] <... futex resumed>) = 0 [pid 9095] <... write resumed>) = 4194304 [pid 9091] close(4 [pid 4998] lstat("./230/file0", [pid 9097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9095] munmap(0x7f38d9778000, 4194304 [pid 9091] <... close resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9097] <... mmap resumed>) = 0x7f38e1b78000 [pid 9095] <... munmap resumed>) = 0 [pid 9091] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9097] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9091] <... futex resumed>) = 1 [pid 9090] <... futex resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9097] <... mprotect resumed>) = 0 [pid 9091] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9090] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] openat(AT_FDCWD, "./230/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9097] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9091] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9090] <... futex resumed>) = 0 [pid 9095] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9091] mkdir("./file1", 000 [pid 9090] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... openat resumed>) = 4 [pid 9097] <... clone resumed>, parent_tid=[9098], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9098 [pid 9095] <... openat resumed>) = 4 [pid 9091] <... mkdir resumed>) = 0 [pid 4998] fstat(4, [pid 9097] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9095] ioctl(4, LOOP_SET_FD, 3 [pid 9091] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9098 attached [pid 9097] <... futex resumed>) = 0 [pid 9091] <... futex resumed>) = 1 [pid 9090] <... futex resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9098] set_robust_list(0x7f38e1b989e0, 24 [pid 9097] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9091] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9090] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] getdents64(4, [pid 9098] <... set_robust_list resumed>) = 0 [pid 9091] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9090] <... futex resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9098] memfd_create("syzkaller", 0 [pid 9091] mkdir("./bus", 000 [pid 9090] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] getdents64(4, [pid 9098] <... memfd_create resumed>) = 3 [pid 9091] <... mkdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9091] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] close(4 [pid 9098] <... mmap resumed>) = 0x7f38d9778000 [pid 9095] <... ioctl resumed>) = 0 [pid 9091] <... futex resumed>) = 1 [pid 9090] <... futex resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 9095] close(3 [pid 9091] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9090] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] rmdir("./230/file0" [pid 9095] <... close resumed>) = 0 [pid 9091] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9090] <... futex resumed>) = 0 [ 240.514295][ T9091] REISERFS (device loop2): Using r5 hash to sort names [ 240.523533][ T9091] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 240.536669][ T9091] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9095] mkdir("./file0", 0777 [pid 4998] <... rmdir resumed>) = 0 [pid 9095] <... mkdir resumed>) = 0 [pid 4998] getdents64(3, [pid 9091] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9095] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9090] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./230" [ 240.579664][ T9095] loop1: detected capacity change from 0 to 8192 [ 240.597721][ T9091] overlayfs: upper fs needs to support d_type. [ 240.603925][ T9091] overlayfs: upper fs does not support tmpfile. [ 240.615010][ T9095] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./231", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9100 attached [pid 9100] set_robust_list(0x555556b565e0, 24) = 0 [pid 9100] chdir("./231") = 0 [pid 9100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9100] setpgid(0, 0) = 0 [pid 9100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9090] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9100 [pid 9090] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9090] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9100] write(3, "1000", 4 [pid 9090] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9100] <... write resumed>) = 4 [pid 9100] close(3) = 0 [pid 9090] <... clone resumed>, parent_tid=[9101], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9101 [pid 9100] symlink("/dev/binderfs", "./binderfs" [pid 9090] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9090] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9100] <... symlink resumed>) = 0 [ 240.615921][ T9091] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 240.629192][ T9095] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 240.647608][ T9095] REISERFS (device loop1): using ordered data mode [ 240.655025][ T9095] reiserfs: using flush barriers [ 240.656831][ T9091] overlayfs: failed to resolve './file0': -2 [pid 9100] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9101 attached [pid 9098] <... write resumed>) = 4194304 [pid 9100] <... futex resumed>) = 0 [pid 9100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9101] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9100] <... mmap resumed>) = 0x7f38e1b78000 [pid 9098] munmap(0x7f38d9778000, 4194304) = 0 [pid 9098] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9098] ioctl(4, LOOP_SET_FD, 3 [pid 9101] mkdir(".", 0777 [pid 9100] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9098] <... ioctl resumed>) = 0 [pid 9098] close(3) = 0 [pid 9098] mkdir("./file0", 0777) = 0 [pid 9098] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9101] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9101] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9100] <... mprotect resumed>) = 0 [pid 9100] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9102], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9102 [pid 9100] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9102 attached [pid 9091] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9091] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9100] <... futex resumed>) = 0 [pid 9102] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9102] memfd_create("syzkaller", 0) = 3 [pid 9102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9091] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9102] <... mmap resumed>) = 0x7f38d9778000 [pid 9100] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9101] <... mount resumed>) = 0 [pid 9101] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [ 240.669638][ T9095] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 240.691315][ T9098] loop5: detected capacity change from 0 to 8192 [ 240.695486][ T9095] REISERFS (device loop1): checking transaction log (loop1) [ 240.708693][ T9095] REISERFS (device loop1): Using r5 hash to sort names [ 240.716728][ T9095] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9101] chdir(".") = 0 [pid 9101] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9090] <... futex resumed>) = 0 [pid 9101] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9090] exit_group(0 [pid 9101] <... futex resumed>) = ? [pid 9091] <... futex resumed>) = ? [pid 9090] <... exit_group resumed>) = ? [pid 9101] +++ exited with 0 +++ [pid 9091] +++ exited with 0 +++ [pid 9090] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9090, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5000] umount2("./231", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./231", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./231/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./231/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./231/binderfs") = 0 [ 240.727493][ T9098] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 240.729797][ T9095] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 240.742305][ T9098] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 240.742389][ T9098] REISERFS (device loop5): using ordered data mode [ 240.767282][ T9098] reiserfs: using flush barriers [pid 5000] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9102] <... write resumed>) = 4194304 [pid 9095] <... mount resumed>) = 0 [pid 9095] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9095] chdir("./file0") = 0 [pid 9095] ioctl(4, LOOP_CLR_FD) = 0 [pid 9095] close(4) = 0 [pid 9095] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9095] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9102] munmap(0x7f38d9778000, 4194304 [pid 9093] <... futex resumed>) = 0 [pid 9093] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9102] <... munmap resumed>) = 0 [pid 9102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9102] ioctl(4, LOOP_SET_FD, 3 [pid 9095] <... futex resumed>) = 0 [pid 9093] <... futex resumed>) = 1 [pid 9102] <... ioctl resumed>) = 0 [pid 9102] close(3) = 0 [pid 9102] mkdir("./file0", 0777 [pid 9095] mkdir("./file1", 000 [pid 9093] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9102] <... mkdir resumed>) = 0 [pid 9102] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9095] <... mkdir resumed>) = 0 [pid 9095] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9093] <... futex resumed>) = 0 [pid 9093] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9095] mkdir("./bus", 000 [pid 9093] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9095] <... mkdir resumed>) = 0 [pid 9095] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9093] <... futex resumed>) = 0 [pid 9093] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9093] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 240.773634][ T9098] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 240.800825][ T9098] REISERFS (device loop5): checking transaction log (loop5) [ 240.804479][ T9102] loop0: detected capacity change from 0 to 8192 [ 240.820499][ T9098] REISERFS (device loop5): Using r5 hash to sort names [pid 9095] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./231/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./231/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./231/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./231") = 0 [ 240.830066][ T9095] overlayfs: upper fs needs to support d_type. [ 240.840841][ T9095] overlayfs: upper fs does not support tmpfile. [ 240.855460][ T9102] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] mkdir("./232", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9105 ./strace-static-x86_64: Process 9105 attached [pid 9105] set_robust_list(0x555556b565e0, 24) = 0 [pid 9105] chdir("./232") = 0 [pid 9105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9105] setpgid(0, 0) = 0 [pid 9105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9105] write(3, "1000", 4) = 4 [pid 9105] close(3) = 0 [pid 9105] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9105] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9105] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9105] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9106], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9106 [pid 9105] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9105] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9093] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 9106 attached [pid 9106] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9106] memfd_create("syzkaller", 0) = 3 [pid 9106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9093] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9093] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9093] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9107], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9107 [pid 9093] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9093] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9107 attached [pid 9107] set_robust_list(0x7f38d9b779e0, 24) = 0 [ 240.856489][ T9098] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 240.883291][ T9102] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 240.884359][ T9095] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 240.902014][ T9102] REISERFS (device loop0): using ordered data mode [ 240.903020][ T9095] overlayfs: failed to resolve './file0': -2 [ 240.916341][ T9098] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 240.920783][ T9102] reiserfs: using flush barriers [pid 9107] mkdir(".", 0777 [pid 9106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9098] <... mount resumed>) = 0 [pid 9095] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9095] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9095] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9107] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9107] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9098] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9098] chdir("./file0") = 0 [pid 9098] ioctl(4, LOOP_CLR_FD) = 0 [pid 9098] close(4 [pid 9106] <... write resumed>) = 4194304 [pid 9098] <... close resumed>) = 0 [pid 9107] <... mount resumed>) = 0 [pid 9106] munmap(0x7f38d9778000, 4194304 [pid 9098] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9097] <... futex resumed>) = 0 [pid 9098] mkdir("./file1", 000 [pid 9097] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9098] <... mkdir resumed>) = 0 [pid 9097] <... futex resumed>) = 0 [pid 9098] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9097] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9098] <... futex resumed>) = 0 [pid 9097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9098] mkdir("./bus", 000 [pid 9097] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9098] <... mkdir resumed>) = 0 [pid 9097] <... futex resumed>) = 0 [pid 9098] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9097] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9098] <... futex resumed>) = 0 [pid 9097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9098] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9097] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9097] <... futex resumed>) = 0 [pid 9098] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9097] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9107] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9107] chdir(".") = 0 [ 240.932045][ T9102] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 240.949106][ T9102] REISERFS (device loop0): checking transaction log (loop0) [ 240.967000][ T9102] REISERFS (device loop0): Using r5 hash to sort names [ 240.973489][ T9098] overlayfs: upper fs needs to support d_type. [pid 9107] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9093] <... futex resumed>) = 0 [pid 9107] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9093] exit_group(0 [pid 9107] <... futex resumed>) = ? [pid 9095] <... futex resumed>) = ? [pid 9093] <... exit_group resumed>) = ? [pid 9107] +++ exited with 0 +++ [pid 9095] +++ exited with 0 +++ [pid 9093] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9093, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4999] umount2("./231", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./231", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9106] <... munmap resumed>) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./231/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./231/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9102] <... mount resumed>) = 0 [pid 4999] unlink("./231/binderfs") = 0 [pid 4999] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9106] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9106] ioctl(4, LOOP_SET_FD, 3 [pid 9102] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9097] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9102] <... openat resumed>) = 3 [pid 9097] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9102] chdir("./file0" [pid 9097] <... futex resumed>) = 0 [pid 9102] <... chdir resumed>) = 0 [pid 9097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9102] ioctl(4, LOOP_CLR_FD [pid 9097] <... mmap resumed>) = 0x7f38d9b57000 [pid 9102] <... ioctl resumed>) = 0 [pid 9097] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9102] close(4 [pid 9097] <... mprotect resumed>) = 0 [pid 9102] <... close resumed>) = 0 [pid 9097] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9108], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9108 [pid 9097] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9102] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9097] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9102] <... futex resumed>) = 1 [pid 9100] <... futex resumed>) = 0 [pid 9102] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9100] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9100] <... futex resumed>) = 0 [pid 9102] mkdir("./file1", 000 [pid 9100] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9108 attached [pid 9102] <... mkdir resumed>) = 0 [pid 9102] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9098] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9102] <... futex resumed>) = 1 [pid 9100] <... futex resumed>) = 0 [pid 9098] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9108] set_robust_list(0x7f38d9b779e0, 24 [pid 9102] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9100] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9098] <... futex resumed>) = 0 [ 240.974536][ T9102] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 240.993414][ T9102] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 241.003410][ T9098] overlayfs: upper fs does not support tmpfile. [ 241.007063][ T9106] loop2: detected capacity change from 0 to 8192 [ 241.010643][ T9098] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 241.024567][ T9098] overlayfs: failed to resolve './file0': -2 [pid 9108] <... set_robust_list resumed>) = 0 [pid 9102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9100] <... futex resumed>) = 0 [pid 9098] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9108] mkdir(".", 0777 [pid 9106] <... ioctl resumed>) = 0 [pid 9102] mkdir("./bus", 000 [pid 9100] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9108] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9106] close(3 [pid 9108] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9106] <... close resumed>) = 0 [pid 9102] <... mkdir resumed>) = 0 [pid 9106] mkdir("./file0", 0777 [pid 9102] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9106] <... mkdir resumed>) = 0 [pid 9106] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9102] <... futex resumed>) = 1 [pid 9100] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9102] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9100] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9100] <... futex resumed>) = 0 [pid 9108] <... mount resumed>) = 0 [pid 9108] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9108] chdir(".") = 0 [pid 9108] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9097] <... futex resumed>) = 0 [pid 9108] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9102] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9100] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9097] exit_group(0 [pid 9108] <... futex resumed>) = ? [pid 9098] <... futex resumed>) = ? [pid 9097] <... exit_group resumed>) = ? [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9108] +++ exited with 0 +++ [pid 9098] +++ exited with 0 +++ [pid 9097] +++ exited with 0 +++ [pid 4999] lstat("./231/file0", [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9097, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5003] umount2("./231", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./231", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./231/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./231/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./231/binderfs") = 0 [pid 5003] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9100] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9100] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 241.077644][ T9102] overlayfs: upper fs needs to support d_type. [ 241.078838][ T9106] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 241.084242][ T9102] overlayfs: upper fs does not support tmpfile. [ 241.098326][ T9106] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 241.105827][ T9102] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 241.119116][ T9106] REISERFS (device loop2): using ordered data mode [pid 9100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] openat(AT_FDCWD, "./231/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9100] <... mmap resumed>) = 0x7f38d9b57000 [pid 4999] <... openat resumed>) = 4 [pid 9100] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4999] fstat(4, [pid 9100] <... mprotect resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9100] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9100] <... clone resumed>, parent_tid=[9110], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9110 [pid 4999] getdents64(4, [pid 9100] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9100] <... futex resumed>) = 0 [pid 4999] close(4 [pid 9100] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./231/file0") = 0 ./strace-static-x86_64: Process 9110 attached [pid 4999] getdents64(3, [pid 9102] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9102] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9102] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9110] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9110] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9110] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./231") = 0 [pid 4999] mkdir("./232", 0777 [pid 9110] <... mount resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9110] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] <... openat resumed>) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 9110] <... openat resumed>) = 4 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] close(3 [pid 9110] chdir("." [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9110] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 9111 attached [pid 9110] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9111 [pid 9111] set_robust_list(0x555556b565e0, 24 [pid 9110] <... futex resumed>) = 1 [pid 9100] <... futex resumed>) = 0 [pid 9100] exit_group(0) = ? [pid 9111] <... set_robust_list resumed>) = 0 [pid 9102] <... futex resumed>) = ? [pid 9111] chdir("./232" [pid 9110] +++ exited with 0 +++ [ 241.121446][ T9102] overlayfs: failed to resolve './file0': -2 [ 241.142180][ T9106] reiserfs: using flush barriers [pid 9111] <... chdir resumed>) = 0 [pid 9102] +++ exited with 0 +++ [pid 9100] +++ exited with 0 +++ [pid 5003] <... umount2 resumed>) = 0 [pid 9111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9111] setpgid(0, 0) = 0 [pid 9111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9111] write(3, "1000", 4) = 4 [pid 9111] close(3) = 0 [pid 9111] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9111] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 5003] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9100, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 9111] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9111] <... mprotect resumed>) = 0 [pid 5003] lstat("./231/file0", [pid 9111] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9112], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9112 [pid 9111] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9111] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] umount2("./231", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./231", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./231/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./231/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./231/binderfs") = 0 [pid 4998] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./231/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./231/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./231") = 0 [pid 5003] mkdir("./232", 0777./strace-static-x86_64: Process 9112 attached ) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 9112] set_robust_list(0x7f38e1b989e0, 24 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 9112] <... set_robust_list resumed>) = 0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] close(3 [pid 9112] memfd_create("syzkaller", 0 [pid 5003] <... close resumed>) = 0 [ 241.171170][ T9106] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 241.188824][ T9106] REISERFS (device loop2): checking transaction log (loop2) [ 241.208409][ T9106] REISERFS (device loop2): Using r5 hash to sort names [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9113 ./strace-static-x86_64: Process 9113 attached [pid 9113] set_robust_list(0x555556b565e0, 24) = 0 [pid 9113] chdir("./232") = 0 [pid 9113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9113] setpgid(0, 0) = 0 [pid 9113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9112] <... memfd_create resumed>) = 3 [pid 9112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9113] <... openat resumed>) = 3 [pid 9113] write(3, "1000", 4) = 4 [pid 9113] close(3) = 0 [pid 9113] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9113] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9113] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9113] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9113] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9114], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9114 [pid 9113] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9113] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9114 attached [pid 9114] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9114] memfd_create("syzkaller", 0 [pid 4998] <... umount2 resumed>) = 0 [pid 9114] <... memfd_create resumed>) = 3 [pid 9114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 241.216982][ T9106] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 4998] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./231/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./231/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./231/file0" [pid 9112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./231") = 0 [pid 4998] mkdir("./232", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9106] <... mount resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9106] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] ioctl(3, LOOP_CLR_FD [pid 9106] <... openat resumed>) = 3 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 9106] chdir("./file0" [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9106] <... chdir resumed>) = 0 [pid 9106] ioctl(4, LOOP_CLR_FD) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9115 [pid 9106] close(4) = 0 [pid 9106] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9105] <... futex resumed>) = 0 [pid 9106] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9105] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9105] <... futex resumed>) = 0 [pid 9106] mkdir("./file1", 000 [pid 9105] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9106] <... mkdir resumed>) = 0 [pid 9106] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9105] <... futex resumed>) = 0 [pid 9106] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9105] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9105] <... futex resumed>) = 0 [pid 9106] mkdir("./bus", 000 [pid 9105] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9106] <... mkdir resumed>) = 0 [pid 9106] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9105] <... futex resumed>) = 0 [pid 9106] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9105] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9105] <... futex resumed>) = 0 [pid 9106] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9105] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9115 attached [ 241.262477][ T9106] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9115] set_robust_list(0x555556b565e0, 24) = 0 [pid 9115] chdir("./232") = 0 [pid 9115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9115] setpgid(0, 0) = 0 [pid 9115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9115] write(3, "1000", 4) = 4 [pid 9115] close(3) = 0 [pid 9115] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9115] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9115] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9115] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9116], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9116 [pid 9115] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9115] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9116 attached [pid 9116] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9116] memfd_create("syzkaller", 0) = 3 [pid 9116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9112] <... write resumed>) = 4194304 [pid 9112] munmap(0x7f38d9778000, 4194304) = 0 [pid 9105] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9112] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9105] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9112] <... openat resumed>) = 4 [pid 9105] <... futex resumed>) = 0 [ 241.314332][ T9106] overlayfs: upper fs needs to support d_type. [ 241.332232][ T9106] overlayfs: upper fs does not support tmpfile. [ 241.352707][ T9106] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9112] ioctl(4, LOOP_SET_FD, 3 [pid 9105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9105] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9105] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9112] <... ioctl resumed>) = 0 [pid 9105] <... clone resumed>, parent_tid=[9117], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9117 [pid 9112] close(3 [pid 9105] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 9117 attached [pid 9105] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9112] <... close resumed>) = 0 [pid 9112] mkdir("./file0", 0777) = 0 [pid 9112] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9106] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9117] set_robust_list(0x7f38d9b779e0, 24 [pid 9114] <... write resumed>) = 4194304 [pid 9114] munmap(0x7f38d9778000, 4194304 [pid 9116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9114] <... munmap resumed>) = 0 [pid 9114] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9117] <... set_robust_list resumed>) = 0 [pid 9106] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9114] <... openat resumed>) = 4 [ 241.367292][ T9106] overlayfs: failed to resolve './file0': -2 [ 241.374643][ T9112] loop1: detected capacity change from 0 to 8192 [ 241.390318][ T9112] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 241.403439][ T9112] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 9114] ioctl(4, LOOP_SET_FD, 3 [pid 9117] mkdir(".", 0777 [pid 9106] <... futex resumed>) = 0 [pid 9117] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9106] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9117] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9117] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9114] <... ioctl resumed>) = 0 [pid 9114] close(3) = 0 [pid 9114] mkdir("./file0", 0777) = 0 [pid 9114] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9117] chdir(".") = 0 [pid 9117] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9105] <... futex resumed>) = 0 [pid 9117] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9105] exit_group(0) = ? [pid 9117] <... futex resumed>) = ? [pid 9106] <... futex resumed>) = ? [pid 9117] +++ exited with 0 +++ [pid 9106] +++ exited with 0 +++ [pid 9105] +++ exited with 0 +++ [ 241.406587][ T9114] loop5: detected capacity change from 0 to 8192 [ 241.412747][ T9112] REISERFS (device loop1): using ordered data mode [ 241.425558][ T9112] reiserfs: using flush barriers [ 241.435330][ T9112] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 241.451912][ T9112] REISERFS (device loop1): checking transaction log (loop1) [pid 9116] <... write resumed>) = 4194304 [pid 9116] munmap(0x7f38d9778000, 4194304) = 0 [pid 9116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9116] ioctl(4, LOOP_SET_FD, 3 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9105, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 9116] <... ioctl resumed>) = 0 [pid 9116] close(3) = 0 [pid 9116] mkdir("./file0", 0777) = 0 [pid 9116] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./232", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./232", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 241.462499][ T9114] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 241.465271][ T9116] loop0: detected capacity change from 0 to 8192 [ 241.476525][ T9114] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 241.484722][ T9116] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 241.505022][ T9112] REISERFS (device loop1): Using r5 hash to sort names [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9112] <... mount resumed>) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./232/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./232/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./232/binderfs") = 0 [pid 5000] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9112] chdir("./file0") = 0 [pid 9112] ioctl(4, LOOP_CLR_FD) = 0 [ 241.512534][ T9112] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 241.526105][ T9114] REISERFS (device loop5): using ordered data mode [ 241.532696][ T9114] reiserfs: using flush barriers [ 241.533757][ T9116] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 241.538106][ T9112] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 241.547958][ T9116] REISERFS (device loop0): using ordered data mode [ 241.563086][ T9116] reiserfs: using flush barriers [pid 9112] close(4) = 0 [pid 9112] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9112] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9111] <... futex resumed>) = 0 [ 241.566298][ T9114] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 241.569136][ T9116] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 241.590214][ T9114] REISERFS (device loop5): checking transaction log (loop5) [ 241.601484][ T9116] REISERFS (device loop0): checking transaction log (loop0) [pid 9111] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9112] <... futex resumed>) = 0 [pid 9111] <... futex resumed>) = 1 [pid 9112] mkdir("./file1", 000) = 0 [pid 9111] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9112] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9112] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9111] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9112] <... futex resumed>) = 0 [pid 9111] <... futex resumed>) = 1 [pid 9112] mkdir("./bus", 000 [pid 9111] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9112] <... mkdir resumed>) = 0 [pid 9112] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9111] <... futex resumed>) = 0 [pid 9112] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9111] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9112] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9111] <... futex resumed>) = 0 [pid 9112] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 241.617738][ T9116] REISERFS (device loop0): Using r5 hash to sort names [ 241.625740][ T9114] REISERFS (device loop5): Using r5 hash to sort names [ 241.627630][ T9112] overlayfs: upper fs needs to support d_type. [ 241.633127][ T9116] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 241.651700][ T9114] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9111] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9114] <... mount resumed>) = 0 [pid 9116] <... mount resumed>) = 0 [pid 9114] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9116] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9114] <... openat resumed>) = 3 [pid 9116] <... openat resumed>) = 3 [pid 9114] chdir("./file0" [pid 9116] chdir("./file0" [pid 9114] <... chdir resumed>) = 0 [pid 9114] ioctl(4, LOOP_CLR_FD [pid 9116] <... chdir resumed>) = 0 [pid 9114] <... ioctl resumed>) = 0 [pid 9116] ioctl(4, LOOP_CLR_FD [pid 9114] close(4 [pid 9116] <... ioctl resumed>) = 0 [pid 9114] <... close resumed>) = 0 [pid 9111] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9111] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9116] close(4 [pid 9111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9114] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9116] <... close resumed>) = 0 [pid 9116] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9114] <... futex resumed>) = 1 [pid 9116] <... futex resumed>) = 1 [pid 9115] <... futex resumed>) = 0 [pid 9113] <... futex resumed>) = 0 [pid 9111] <... mmap resumed>) = 0x7f38d9b57000 [pid 9115] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9113] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9115] <... futex resumed>) = 0 [pid 9113] <... futex resumed>) = 0 [pid 9111] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9115] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9113] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9111] <... mprotect resumed>) = 0 [pid 9111] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9121], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9121 [pid 9111] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9111] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9121 attached [pid 9116] mkdir("./file1", 000 [pid 9114] mkdir("./file1", 000 [pid 9112] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9121] set_robust_list(0x7f38d9b779e0, 24 [pid 9116] <... mkdir resumed>) = 0 [pid 9114] <... mkdir resumed>) = 0 [pid 9112] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9116] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9114] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9116] <... futex resumed>) = 1 [pid 9115] <... futex resumed>) = 0 [pid 9114] <... futex resumed>) = 1 [pid 9113] <... futex resumed>) = 0 [pid 9112] <... futex resumed>) = 0 [pid 9116] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9115] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9114] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9113] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9112] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9121] <... set_robust_list resumed>) = 0 [pid 9116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9115] <... futex resumed>) = 0 [pid 9114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9113] <... futex resumed>) = 0 [pid 9121] mkdir(".", 0777 [pid 9116] mkdir("./bus", 000 [pid 9115] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9114] mkdir("./bus", 000 [pid 9113] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9121] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9116] <... mkdir resumed>) = 0 [pid 9114] <... mkdir resumed>) = 0 [pid 9121] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9116] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9114] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9116] <... futex resumed>) = 1 [pid 9115] <... futex resumed>) = 0 [pid 9114] <... futex resumed>) = 1 [pid 9113] <... futex resumed>) = 0 [pid 9116] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9115] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9114] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9113] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9115] <... futex resumed>) = 0 [pid 9114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9113] <... futex resumed>) = 0 [pid 9116] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9115] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9114] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 241.658001][ T9112] overlayfs: upper fs does not support tmpfile. [ 241.670740][ T9114] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 241.673986][ T9112] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 241.687111][ T9116] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 241.701066][ T9112] overlayfs: failed to resolve './file0': -2 [pid 9113] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9121] <... mount resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./232/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./232/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9121] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9121] chdir(".") = 0 [pid 9121] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9111] <... futex resumed>) = 0 [pid 9121] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9111] exit_group(0 [pid 9121] <... futex resumed>) = ? [pid 9112] <... futex resumed>) = ? [pid 9111] <... exit_group resumed>) = ? [pid 9121] +++ exited with 0 +++ [pid 9112] +++ exited with 0 +++ [pid 5000] <... openat resumed>) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9111] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9111, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5000] getdents64(4, [pid 4999] umount2("./232", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./232/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./232" [pid 9115] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9115] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9113] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9115] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9113] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9115] <... mprotect resumed>) = 0 [pid 9113] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9115] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9113] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 4999] openat(AT_FDCWD, "./232", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9115] <... clone resumed>, parent_tid=[9122], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9122 [pid 9113] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9115] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9113] <... mprotect resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 9115] <... futex resumed>) = 0 [pid 9113] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 4999] fstat(3, [pid 9115] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9113] <... clone resumed>, parent_tid=[9123], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9123 [pid 9113] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9113] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./233", 0777) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9116] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] getdents64(3, [pid 9116] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9116] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] umount2("./232/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./232/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./232/binderfs" [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] <... unlink resumed>) = 0 [pid 4999] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 3 [ 241.737636][ T9114] overlayfs: upper fs needs to support d_type. [ 241.737636][ T9116] overlayfs: upper fs needs to support d_type. [ 241.737666][ T9116] overlayfs: upper fs does not support tmpfile. [ 241.743846][ T9114] overlayfs: upper fs does not support tmpfile. [ 241.744182][ T9114] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 241.751747][ T9116] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 241.781379][ T9116] overlayfs: failed to resolve './file0': -2 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9123 attached [pid 9123] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9123] mkdir(".", 0777 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9124 [pid 9123] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9123] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, ""./strace-static-x86_64: Process 9124 attached [pid 9124] set_robust_list(0x555556b565e0, 24) = 0 [pid 9124] chdir("./233") = 0 [pid 9124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9124] setpgid(0, 0./strace-static-x86_64: Process 9122 attached [pid 9122] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9122] mkdir(".", 0777 [pid 9124] <... setpgid resumed>) = 0 [pid 9122] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9122] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9123] <... mount resumed>) = 0 [pid 9124] write(3, "1000", 4 [pid 9123] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9124] <... write resumed>) = 4 [pid 9123] <... openat resumed>) = 4 [pid 9124] close(3 [pid 9123] chdir("." [pid 9124] <... close resumed>) = 0 [pid 9123] <... chdir resumed>) = 0 [pid 9124] symlink("/dev/binderfs", "./binderfs" [pid 9123] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9122] <... mount resumed>) = 0 [pid 9124] <... symlink resumed>) = 0 [pid 9123] <... futex resumed>) = 1 [pid 9113] <... futex resumed>) = 0 [pid 9122] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9124] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9123] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9124] <... futex resumed>) = 0 [pid 9122] <... openat resumed>) = 4 [pid 9124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9122] chdir("." [pid 9124] <... mmap resumed>) = 0x7f38e1b78000 [pid 9122] <... chdir resumed>) = 0 [pid 9124] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9122] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9124] <... mprotect resumed>) = 0 [pid 9122] <... futex resumed>) = 1 [pid 9115] <... futex resumed>) = 0 [pid 9124] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9115] exit_group(0 [pid 9124] <... clone resumed>, parent_tid=[9125], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9125 [pid 9116] <... futex resumed>) = ? [pid 9115] <... exit_group resumed>) = ? [pid 9124] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9122] +++ exited with 0 +++ [pid 9116] +++ exited with 0 +++ [pid 9115] +++ exited with 0 +++ [pid 9124] <... futex resumed>) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9115, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 9124] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9125 attached [pid 9125] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 4998] umount2("./232", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9125] memfd_create("syzkaller", 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./232", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9125] <... memfd_create resumed>) = 3 [ 241.789479][ T9114] overlayfs: failed to resolve './file0': -2 [pid 4998] <... openat resumed>) = 3 [pid 9125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] fstat(3, [pid 9125] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... umount2 resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] getdents64(3, [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] lstat("./232/file0", [pid 4998] umount2("./232/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./232/binderfs", [pid 4999] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] unlink("./232/binderfs" [pid 4999] openat(AT_FDCWD, "./232/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... unlink resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 4998] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4 [pid 9114] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9114] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... close resumed>) = 0 [pid 9113] exit_group(0 [pid 9123] <... futex resumed>) = ? [pid 9114] <... futex resumed>) = ? [pid 9113] <... exit_group resumed>) = ? [pid 4999] rmdir("./232/file0" [pid 9123] +++ exited with 0 +++ [pid 9114] +++ exited with 0 +++ [pid 9113] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9113, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 5003] umount2("./232", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] rmdir("./232" [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./232", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... rmdir resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 4999] mkdir("./233", 0777 [pid 5003] fstat(3, [pid 4999] <... mkdir resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5003] getdents64(3, [pid 4999] <... openat resumed>) = 3 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5003] umount2("./232/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(3 [pid 5003] lstat("./232/binderfs", [pid 4999] <... close resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] unlink("./232/binderfs") = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9126 [pid 5003] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9126 attached [pid 9126] set_robust_list(0x555556b565e0, 24 [pid 9125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9126] <... set_robust_list resumed>) = 0 [pid 9126] chdir("./233") = 0 [pid 9126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9126] setpgid(0, 0) = 0 [pid 9126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9126] write(3, "1000", 4) = 4 [pid 9126] close(3) = 0 [pid 9126] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9126] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9126] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9126] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9127], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9127 [pid 9126] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9126] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9127 attached [pid 9127] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9127] memfd_create("syzkaller", 0) = 3 [pid 9127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 4998] <... umount2 resumed>) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] lstat("./232/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./232/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] lstat("./232/file0", [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./232/file0" [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 4998] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9125] <... write resumed>) = 4194304 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./232/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9125] munmap(0x7f38d9778000, 4194304 [pid 5003] getdents64(3, [pid 4998] fstat(4, [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] rmdir("./232" [pid 4998] getdents64(4, [pid 5003] <... rmdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] mkdir("./233", 0777 [pid 4998] getdents64(4, [pid 5003] <... mkdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 4998] close(4 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] <... close resumed>) = 0 [pid 5003] close(3) = 0 [pid 4998] rmdir("./232/file0" [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... rmdir resumed>) = 0 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9128 [pid 4998] getdents64(3, [pid 9125] <... munmap resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9125] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4998] close(3 [pid 9125] <... openat resumed>) = 4 [pid 4998] <... close resumed>) = 0 [pid 9125] ioctl(4, LOOP_SET_FD, 3 [pid 4998] rmdir("./232") = 0 [pid 4998] mkdir("./233", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9129 ./strace-static-x86_64: Process 9129 attached [pid 9129] set_robust_list(0x555556b565e0, 24) = 0 [pid 9125] <... ioctl resumed>) = 0 [pid 9125] close(3) = 0 [pid 9129] chdir("./233" [pid 9125] mkdir("./file0", 0777) = 0 [pid 9129] <... chdir resumed>) = 0 [pid 9129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9125] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9129] <... prctl resumed>) = 0 [pid 9129] setpgid(0, 0) = 0 [pid 9129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 9128 attached [pid 9129] write(3, "1000", 4) = 4 [pid 9128] set_robust_list(0x555556b565e0, 24 [pid 9129] close(3 [pid 9128] <... set_robust_list resumed>) = 0 [pid 9129] <... close resumed>) = 0 [pid 9128] chdir("./233" [pid 9129] symlink("/dev/binderfs", "./binderfs" [pid 9128] <... chdir resumed>) = 0 [pid 9129] <... symlink resumed>) = 0 [pid 9128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9129] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9128] <... prctl resumed>) = 0 [pid 9129] <... futex resumed>) = 0 [pid 9128] setpgid(0, 0 [pid 9129] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9128] <... setpgid resumed>) = 0 [pid 9129] <... mmap resumed>) = 0x7f38e1b78000 [pid 9128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9129] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9128] <... openat resumed>) = 3 [pid 9129] <... mprotect resumed>) = 0 [pid 9128] write(3, "1000", 4 [pid 9129] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9128] <... write resumed>) = 4 [pid 9128] close(3 [pid 9129] <... clone resumed>, parent_tid=[9131], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9131 [pid 9128] <... close resumed>) = 0 [pid 9129] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9128] symlink("/dev/binderfs", "./binderfs" [pid 9129] <... futex resumed>) = 0 [pid 9128] <... symlink resumed>) = 0 [pid 9129] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9128] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9128] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9128] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9132], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9132 [pid 9128] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9128] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9131 attached [pid 9131] set_robust_list(0x7f38e1b989e0, 24./strace-static-x86_64: Process 9132 attached ) = 0 [pid 9131] memfd_create("syzkaller", 0 [pid 9132] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9132] memfd_create("syzkaller", 0 [pid 9131] <... memfd_create resumed>) = 3 [pid 9131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 241.980759][ T9125] loop2: detected capacity change from 0 to 8192 [ 242.000786][ T9125] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9132] <... memfd_create resumed>) = 3 [pid 9127] <... write resumed>) = 4194304 [pid 9132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9127] munmap(0x7f38d9778000, 4194304) = 0 [pid 9127] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9127] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9127] close(3) = 0 [pid 9132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9127] mkdir("./file0", 0777) = 0 [ 242.029725][ T9125] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 242.039387][ T9125] REISERFS (device loop2): using ordered data mode [ 242.046537][ T9125] reiserfs: using flush barriers [ 242.055148][ T9127] loop1: detected capacity change from 0 to 8192 [ 242.062803][ T9125] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 242.080215][ T9127] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 242.080264][ T9125] REISERFS (device loop2): checking transaction log (loop2) [ 242.101254][ T9127] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 242.101867][ T9125] REISERFS (device loop2): Using r5 hash to sort names [ 242.110618][ T9127] REISERFS (device loop1): using ordered data mode [ 242.124182][ T9127] reiserfs: using flush barriers [pid 9127] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9125] <... mount resumed>) = 0 [pid 9125] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9125] chdir("./file0") = 0 [pid 9125] ioctl(4, LOOP_CLR_FD) = 0 [pid 9125] close(4) = 0 [pid 9125] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9124] <... futex resumed>) = 0 [pid 9124] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9125] <... futex resumed>) = 1 [pid 9124] <... futex resumed>) = 0 [pid 9125] mkdir("./file1", 000 [pid 9124] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9125] <... mkdir resumed>) = 0 [pid 9125] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9124] <... futex resumed>) = 0 [pid 9124] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9125] mkdir("./bus", 000 [pid 9124] <... futex resumed>) = 0 [pid 9125] <... mkdir resumed>) = 0 [pid 9124] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9125] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9124] <... futex resumed>) = 0 [pid 9124] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9125] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 242.131154][ T9125] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 242.132175][ T9127] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 242.143956][ T9125] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9124] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9132] <... write resumed>) = 4194304 [pid 9132] munmap(0x7f38d9778000, 4194304) = 0 [pid 9132] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 242.184494][ T9125] overlayfs: upper fs needs to support d_type. [ 242.189337][ T9127] REISERFS (device loop1): checking transaction log (loop1) [ 242.202218][ T9125] overlayfs: upper fs does not support tmpfile. [ 242.203717][ T9127] REISERFS (device loop1): Using r5 hash to sort names [ 242.209814][ T9125] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 242.223818][ T9125] overlayfs: failed to resolve './file0': -2 [pid 9132] ioctl(4, LOOP_SET_FD, 3 [pid 9124] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9124] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9132] <... ioctl resumed>) = 0 [pid 9132] close(3 [pid 9124] <... futex resumed>) = 0 [pid 9132] <... close resumed>) = 0 [pid 9131] <... write resumed>) = 4194304 [pid 9124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9132] mkdir("./file0", 0777 [pid 9124] <... mmap resumed>) = 0x7f38d9b57000 [pid 9132] <... mkdir resumed>) = 0 [pid 9124] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9132] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9124] <... mprotect resumed>) = 0 [pid 9124] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9134], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9134 [pid 9124] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9125] <... mount resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 9134 attached [pid 9124] <... futex resumed>) = 0 [pid 9124] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9131] munmap(0x7f38d9778000, 4194304) = 0 [pid 9131] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9131] ioctl(4, LOOP_SET_FD, 3 [pid 9134] set_robust_list(0x7f38d9b779e0, 24 [pid 9127] <... mount resumed>) = 0 [pid 9125] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9134] <... set_robust_list resumed>) = 0 [pid 9125] <... futex resumed>) = 0 [pid 9134] mkdir(".", 0777 [pid 9125] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9134] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9134] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9134] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9134] chdir(".") = 0 [pid 9134] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9134] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9127] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9127] chdir("./file0") = 0 [ 242.230619][ T9132] loop5: detected capacity change from 0 to 8192 [ 242.245353][ T9127] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 242.258724][ T9127] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 242.264765][ T9131] loop0: detected capacity change from 0 to 8192 [pid 9127] ioctl(4, LOOP_CLR_FD [pid 9131] <... ioctl resumed>) = 0 [pid 9124] <... futex resumed>) = 0 [pid 9131] close(3 [pid 9127] <... ioctl resumed>) = 0 [pid 9124] exit_group(0 [pid 9134] <... futex resumed>) = ? [pid 9131] <... close resumed>) = 0 [pid 9125] <... futex resumed>) = ? [pid 9124] <... exit_group resumed>) = ? [pid 9134] +++ exited with 0 +++ [pid 9131] mkdir("./file0", 0777 [pid 9125] +++ exited with 0 +++ [pid 9124] +++ exited with 0 +++ [pid 9131] <... mkdir resumed>) = 0 [pid 9127] close(4 [pid 9131] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9127] <... close resumed>) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9124, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 9127] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 9127] <... futex resumed>) = 1 [pid 5000] <... restart_syscall resumed>) = 0 [pid 9127] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] umount2("./233", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9126] <... futex resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./233", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9126] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... openat resumed>) = 3 [pid 9126] <... futex resumed>) = 1 [pid 9127] <... futex resumed>) = 0 [pid 5000] fstat(3, [pid 9127] mkdir("./file1", 000 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9127] <... mkdir resumed>) = 0 [pid 9126] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] getdents64(3, [pid 9127] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9127] <... futex resumed>) = 0 [pid 5000] umount2("./233/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9127] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./233/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./233/binderfs") = 0 [pid 9126] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9127] <... futex resumed>) = 0 [ 242.275108][ T9132] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 242.288315][ T9132] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 242.299713][ T9132] REISERFS (device loop5): using ordered data mode [ 242.299806][ T9131] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 242.306523][ T9132] reiserfs: using flush barriers [pid 9126] <... futex resumed>) = 1 [pid 9127] mkdir("./bus", 000) = 0 [pid 9127] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9127] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9126] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9126] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9127] <... futex resumed>) = 0 [pid 9126] <... futex resumed>) = 1 [pid 9127] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 242.328950][ T9131] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 242.338802][ T9131] REISERFS (device loop0): using ordered data mode [ 242.345316][ T9131] reiserfs: using flush barriers [ 242.352854][ T9132] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 242.353948][ T9127] overlayfs: upper fs needs to support d_type. [ 242.369477][ T9132] REISERFS (device loop5): checking transaction log (loop5) [pid 9126] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9132] <... mount resumed>) = 0 [ 242.381401][ T9131] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 242.399180][ T9132] REISERFS (device loop5): Using r5 hash to sort names [ 242.406361][ T9132] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 242.419343][ T9132] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 242.423106][ T9127] overlayfs: upper fs does not support tmpfile. [pid 9126] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9126] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9126] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9126] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9137], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9137 [pid 9126] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9126] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9132] chdir("./file0") = 0 [pid 9132] ioctl(4, LOOP_CLR_FD) = 0 [pid 9132] close(4) = 0 [pid 9132] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9137 attached [pid 9137] set_robust_list(0x7f38d9b779e0, 24 [pid 9132] <... futex resumed>) = 1 [pid 9132] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9128] <... futex resumed>) = 0 [pid 9128] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9137] <... set_robust_list resumed>) = 0 [pid 9128] <... futex resumed>) = 1 [pid 9132] <... futex resumed>) = 0 [pid 9128] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9132] mkdir("./file1", 000 [pid 9137] mkdir(".", 0777 [pid 9132] <... mkdir resumed>) = 0 [pid 9137] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9132] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9137] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9132] <... futex resumed>) = 1 [pid 9128] <... futex resumed>) = 0 [ 242.429116][ T9131] REISERFS (device loop0): checking transaction log (loop0) [ 242.443991][ T9131] REISERFS (device loop0): Using r5 hash to sort names [ 242.451669][ T9127] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 242.459219][ T9131] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 242.479232][ T9127] overlayfs: failed to resolve './file0': -2 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9132] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9128] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9128] <... futex resumed>) = 0 [pid 9132] mkdir("./bus", 000 [pid 9128] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9127] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9132] <... mkdir resumed>) = 0 [pid 9127] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9137] <... mount resumed>) = 0 [pid 9137] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9132] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9131] <... mount resumed>) = 0 [pid 9127] <... futex resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9132] <... futex resumed>) = 1 [pid 9128] <... futex resumed>) = 0 [pid 9127] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9137] <... openat resumed>) = 4 [pid 9132] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9128] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9128] <... futex resumed>) = 0 [pid 9132] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9128] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9137] chdir("." [pid 9131] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] lstat("./233/file0", [pid 9137] <... chdir resumed>) = 0 [pid 9137] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9126] <... futex resumed>) = 0 [pid 9137] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9126] exit_group(0 [pid 9137] <... futex resumed>) = ? [pid 9126] <... exit_group resumed>) = ? [pid 9137] +++ exited with 0 +++ [pid 9131] <... openat resumed>) = 3 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9131] chdir("./file0") = 0 [pid 5000] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9131] ioctl(4, LOOP_CLR_FD) = 0 [pid 5000] openat(AT_FDCWD, "./233/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9131] close(4 [pid 5000] <... openat resumed>) = 4 [pid 9131] <... close resumed>) = 0 [pid 9127] <... futex resumed>) = ? [pid 5000] fstat(4, [pid 9131] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9131] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./233/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./233") = 0 [pid 5000] mkdir("./234", 0777 [pid 9129] <... futex resumed>) = 0 [pid 9127] +++ exited with 0 +++ [pid 9126] +++ exited with 0 +++ [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9126, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5000] <... openat resumed>) = 3 [pid 9129] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9131] <... futex resumed>) = 0 [pid 9129] <... futex resumed>) = 1 [ 242.488353][ T9131] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 242.502346][ T9132] overlayfs: upper fs needs to support d_type. [ 242.509757][ T9132] overlayfs: upper fs does not support tmpfile. [ 242.525947][ T9132] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9131] mkdir("./file1", 000 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9131] <... mkdir resumed>) = 0 [pid 5000] close(3 [pid 9131] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9129] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] <... close resumed>) = 0 [pid 4999] umount2("./233", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9132] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9131] <... futex resumed>) = 0 [pid 9129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9132] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9131] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9129] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9128] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] openat(AT_FDCWD, "./233", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9132] <... futex resumed>) = 0 [pid 9131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9129] <... futex resumed>) = 0 [pid 9128] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9138 [pid 4999] <... openat resumed>) = 3 [pid 9132] mkdir(".", 0777 [pid 9131] mkdir("./bus", 000 [pid 9129] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9128] <... futex resumed>) = 0 [pid 4999] fstat(3, ./strace-static-x86_64: Process 9138 attached [pid 9132] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9131] <... mkdir resumed>) = 0 [pid 9128] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9138] set_robust_list(0x555556b565e0, 24 [pid 9132] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9131] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9138] <... set_robust_list resumed>) = 0 [pid 9131] <... futex resumed>) = 1 [pid 9129] <... futex resumed>) = 0 [pid 4999] getdents64(3, [pid 9131] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9129] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./233/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9131] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9129] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9138] chdir("./234" [pid 9132] <... mount resumed>) = 0 [ 242.537506][ T9132] overlayfs: failed to resolve './file0': -2 [pid 9129] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9138] <... chdir resumed>) = 0 [pid 9132] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9132] <... openat resumed>) = 4 [pid 9138] <... prctl resumed>) = 0 [pid 9132] chdir("." [pid 9138] setpgid(0, 0 [pid 9132] <... chdir resumed>) = 0 [pid 9138] <... setpgid resumed>) = 0 [pid 9132] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9132] <... futex resumed>) = 1 [pid 9128] <... futex resumed>) = 0 [pid 9138] <... openat resumed>) = 3 [pid 9132] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9128] exit_group(0 [pid 9138] write(3, "1000", 4 [pid 9132] <... futex resumed>) = ? [pid 9128] <... exit_group resumed>) = ? [pid 9138] <... write resumed>) = 4 [pid 9132] +++ exited with 0 +++ [pid 9128] +++ exited with 0 +++ [pid 9138] close(3) = 0 [pid 9138] symlink("/dev/binderfs", "./binderfs" [pid 4999] lstat("./233/binderfs", [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9128, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9138] <... symlink resumed>) = 0 [pid 4999] unlink("./233/binderfs" [pid 9138] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9138] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9138] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9139], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9139 [pid 9138] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9138] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] umount2("./233", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./233", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./233/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./233/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./233/binderfs"./strace-static-x86_64: Process 9139 attached ) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 5003] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9139] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9139] memfd_create("syzkaller", 0) = 3 [pid 9139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 4999] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9129] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9129] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9129] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9129] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [ 242.560061][ T9131] overlayfs: upper fs needs to support d_type. [ 242.566717][ T9131] overlayfs: upper fs does not support tmpfile. [ 242.573861][ T9131] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9129] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9140], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9140 [pid 9129] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9129] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9140 attached [pid 9140] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9140] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9140] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 4999] <... umount2 resumed>) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 4999] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./233/file0", [pid 5003] lstat("./233/file0", [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./233/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] openat(AT_FDCWD, "./233/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... openat resumed>) = 4 [pid 5003] <... openat resumed>) = 4 [pid 4999] fstat(4, [pid 5003] fstat(4, [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 5003] getdents64(4, [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, [pid 5003] getdents64(4, [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4 [pid 5003] close(4 [pid 4999] <... close resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 4999] rmdir("./233/file0" [pid 5003] rmdir("./233/file0" [pid 9131] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] <... rmdir resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 9131] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] getdents64(3, [pid 4999] getdents64(3, [pid 9131] <... futex resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9131] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] close(3 [pid 4999] close(3 [pid 5003] <... close resumed>) = 0 [pid 9139] <... write resumed>) = 4194304 [pid 5003] rmdir("./233" [pid 4999] <... close resumed>) = 0 [pid 9139] munmap(0x7f38d9778000, 4194304 [pid 5003] <... rmdir resumed>) = 0 [pid 4999] rmdir("./233" [pid 9140] <... mount resumed>) = 0 [pid 5003] mkdir("./234", 0777 [pid 9140] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9139] <... munmap resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 9139] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5003] <... mkdir resumed>) = 0 [pid 4999] mkdir("./234", 0777 [pid 9139] <... openat resumed>) = 4 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9140] <... openat resumed>) = 4 [pid 4999] <... mkdir resumed>) = 0 [pid 9139] ioctl(4, LOOP_SET_FD, 3 [pid 5003] <... openat resumed>) = 3 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [ 242.618880][ T9131] overlayfs: failed to resolve './file0': -2 [pid 9140] chdir("." [pid 5003] ioctl(3, LOOP_CLR_FD [pid 9140] <... chdir resumed>) = 0 [pid 9140] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9129] <... futex resumed>) = 0 [pid 9140] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9129] exit_group(0 [pid 9140] <... futex resumed>) = ? [pid 9129] <... exit_group resumed>) = ? [pid 9140] +++ exited with 0 +++ [pid 4999] <... openat resumed>) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9131] <... futex resumed>) = ? [pid 4999] close(3 [pid 9139] <... ioctl resumed>) = 0 [pid 9131] +++ exited with 0 +++ [pid 9129] +++ exited with 0 +++ [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... close resumed>) = 0 [pid 9139] close(3 [pid 5003] close(3 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9129, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 9139] <... close resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9139] mkdir("./file0", 0777 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9139] <... mkdir resumed>) = 0 [pid 4998] umount2("./233", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9139] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9142 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9141 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./233", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./233/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./233/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./233/binderfs") = 0 [pid 4998] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9142 attached [pid 9142] set_robust_list(0x555556b565e0, 24) = 0 [pid 9142] chdir("./234") = 0 [pid 9142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9142] setpgid(0, 0) = 0 [pid 9142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9142] write(3, "1000", 4) = 4 [pid 9142] close(3) = 0 [pid 9142] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9142] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 9141 attached ) = 0x7f38e1b78000 [pid 9142] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9142] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9144], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9144 [pid 9142] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9142] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9141] set_robust_list(0x555556b565e0, 24) = 0 [pid 9141] chdir("./234") = 0 [pid 9141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9141] setpgid(0, 0) = 0 [pid 9141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9141] write(3, "1000", 4) = 4 [pid 9141] close(3) = 0 [pid 9141] symlink("/dev/binderfs", "./binderfs") = 0 [ 242.666768][ T9139] loop2: detected capacity change from 0 to 8192 [ 242.686157][ T9139] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 242.701777][ T9139] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 9141] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9144 attached [pid 4998] <... umount2 resumed>) = 0 [pid 9144] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9144] memfd_create("syzkaller", 0 [pid 9141] <... futex resumed>) = 0 [pid 9144] <... memfd_create resumed>) = 3 [pid 9144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 4998] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./233/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./233/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./233/file0" [pid 9141] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./233" [pid 9141] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 4998] <... rmdir resumed>) = 0 [pid 9141] <... clone resumed>, parent_tid=[9145], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9145 [pid 9141] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] mkdir("./234", 0777 [pid 9141] <... futex resumed>) = 0 [pid 9141] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... mkdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9145 attached ./strace-static-x86_64: Process 9146 attached [pid 9145] set_robust_list(0x7f38e1b989e0, 24 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9146 [pid 9145] <... set_robust_list resumed>) = 0 [ 242.711608][ T9139] REISERFS (device loop2): using ordered data mode [ 242.718501][ T9139] reiserfs: using flush barriers [ 242.724849][ T9139] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 242.743391][ T9139] REISERFS (device loop2): checking transaction log (loop2) [ 242.756023][ T9139] REISERFS (device loop2): Using r5 hash to sort names [pid 9145] memfd_create("syzkaller", 0 [pid 9146] set_robust_list(0x555556b565e0, 24 [pid 9145] <... memfd_create resumed>) = 3 [pid 9146] <... set_robust_list resumed>) = 0 [pid 9145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9146] chdir("./234" [pid 9145] <... mmap resumed>) = 0x7f38d9778000 [pid 9146] <... chdir resumed>) = 0 [pid 9146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9146] setpgid(0, 0) = 0 [pid 9146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9139] <... mount resumed>) = 0 [pid 9146] <... openat resumed>) = 3 [pid 9139] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9146] write(3, "1000", 4 [pid 9144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9139] <... openat resumed>) = 3 [pid 9139] chdir("./file0") = 0 [pid 9139] ioctl(4, LOOP_CLR_FD) = 0 [pid 9139] close(4 [pid 9146] <... write resumed>) = 4 [pid 9139] <... close resumed>) = 0 [pid 9139] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9146] close(3 [pid 9139] <... futex resumed>) = 1 [pid 9146] <... close resumed>) = 0 [pid 9139] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9138] <... futex resumed>) = 0 [pid 9138] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9146] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9139] <... futex resumed>) = 0 [pid 9138] <... futex resumed>) = 1 [pid 9146] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9139] mkdir("./file1", 000 [pid 9138] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9146] <... futex resumed>) = 0 [pid 9145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9139] <... mkdir resumed>) = 0 [pid 9146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9139] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9146] <... mmap resumed>) = 0x7f38e1b78000 [pid 9139] <... futex resumed>) = 1 [pid 9138] <... futex resumed>) = 0 [pid 9146] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9139] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9138] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9146] <... mprotect resumed>) = 0 [pid 9139] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9138] <... futex resumed>) = 0 [pid 9146] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9139] mkdir("./bus", 000 [pid 9138] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9139] <... mkdir resumed>) = 0 [pid 9146] <... clone resumed>, parent_tid=[9147], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9147 [pid 9139] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9146] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9139] <... futex resumed>) = 1 [pid 9138] <... futex resumed>) = 0 [pid 9146] <... futex resumed>) = 0 [pid 9139] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9138] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9146] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9139] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9138] <... futex resumed>) = 0 [ 242.765261][ T9139] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 242.778123][ T9139] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9139] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9138] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9147 attached [pid 9147] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9147] memfd_create("syzkaller", 0) = 3 [pid 9147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9145] <... write resumed>) = 4194304 [pid 9144] <... write resumed>) = 4194304 [pid 9145] munmap(0x7f38d9778000, 4194304 [pid 9144] munmap(0x7f38d9778000, 4194304) = 0 [pid 9144] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9144] ioctl(4, LOOP_SET_FD, 3 [pid 9145] <... munmap resumed>) = 0 [pid 9145] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 242.827668][ T9139] overlayfs: upper fs needs to support d_type. [ 242.833885][ T9139] overlayfs: upper fs does not support tmpfile. [ 242.856260][ T9139] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 242.869601][ T9144] loop5: detected capacity change from 0 to 8192 [pid 9145] ioctl(4, LOOP_SET_FD, 3 [pid 9144] <... ioctl resumed>) = 0 [pid 9144] close(3) = 0 [pid 9144] mkdir("./file0", 0777) = 0 [pid 9144] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9145] <... ioctl resumed>) = 0 [pid 9145] close(3 [pid 9138] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9145] <... close resumed>) = 0 [pid 9138] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9145] mkdir("./file0", 0777 [pid 9138] <... futex resumed>) = 0 [pid 9145] <... mkdir resumed>) = 0 [pid 9138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9145] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9138] <... mmap resumed>) = 0x7f38d9b57000 [pid 9138] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9138] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9150], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9150 [pid 9138] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9138] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9150 attached [pid 9150] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9150] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9150] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9139] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9139] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 242.871723][ T9145] loop1: detected capacity change from 0 to 8192 [ 242.885104][ T9139] overlayfs: failed to resolve './file0': -2 [ 242.891584][ T9144] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 242.904762][ T9144] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 242.912413][ T9145] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9139] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9150] <... mount resumed>) = 0 [pid 9150] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9150] chdir(".") = 0 [pid 9150] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9138] <... futex resumed>) = 0 [pid 9138] exit_group(0 [pid 9139] <... futex resumed>) = ? [pid 9138] <... exit_group resumed>) = ? [pid 9139] +++ exited with 0 +++ [pid 9150] <... futex resumed>) = ? [pid 9150] +++ exited with 0 +++ [pid 9138] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9138, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 9147] <... write resumed>) = 4194304 [pid 5000] umount2("./234", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9147] munmap(0x7f38d9778000, 4194304 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9147] <... munmap resumed>) = 0 [pid 9147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9147] ioctl(4, LOOP_SET_FD, 3 [ 242.914050][ T9144] REISERFS (device loop5): using ordered data mode [ 242.933674][ T9144] reiserfs: using flush barriers [ 242.939637][ T9145] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 242.948871][ T9144] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 242.948975][ T9145] REISERFS (device loop1): using ordered data mode [pid 5000] openat(AT_FDCWD, "./234", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./234/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./234/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./234/binderfs") = 0 [pid 5000] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9147] <... ioctl resumed>) = 0 [pid 9147] close(3) = 0 [pid 9147] mkdir("./file0", 0777) = 0 [ 242.974142][ T9145] reiserfs: using flush barriers [ 242.975860][ T9147] loop0: detected capacity change from 0 to 8192 [ 242.980602][ T9145] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 242.990439][ T9144] REISERFS (device loop5): checking transaction log (loop5) [ 243.002133][ T9145] REISERFS (device loop1): checking transaction log (loop1) [pid 9147] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9145] <... mount resumed>) = 0 [ 243.017059][ T9147] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.022753][ T9145] REISERFS (device loop1): Using r5 hash to sort names [ 243.031207][ T9144] REISERFS (device loop5): Using r5 hash to sort names [ 243.037298][ T9145] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 243.048119][ T9144] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 243.056676][ T9145] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9145] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9145] chdir("./file0") = 0 [pid 9145] ioctl(4, LOOP_CLR_FD [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./234/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./234/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9145] <... ioctl resumed>) = 0 [pid 9145] close(4 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./234/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./234") = 0 [pid 5000] mkdir("./235", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 243.079069][ T9147] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 243.097286][ T9147] REISERFS (device loop0): using ordered data mode [ 243.103936][ T9147] reiserfs: using flush barriers [ 243.109940][ T9144] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5000] close(3 [pid 9145] <... close resumed>) = 0 [pid 9145] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9144] <... mount resumed>) = 0 [pid 9141] <... futex resumed>) = 0 [pid 9145] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9141] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9145] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9141] <... futex resumed>) = 0 [pid 9145] mkdir("./file1", 000) = 0 [pid 9144] <... openat resumed>) = 3 [pid 9141] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9145] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9144] chdir("./file0" [pid 9141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9141] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9145] <... futex resumed>) = 0 [pid 9144] <... chdir resumed>) = 0 [pid 9141] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9152 [pid 9145] mkdir("./bus", 000 [pid 9144] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 9152 attached [pid 9152] set_robust_list(0x555556b565e0, 24) = 0 [pid 9152] chdir("./235") = 0 [pid 9152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9152] setpgid(0, 0) = 0 [pid 9152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9152] write(3, "1000", 4 [pid 9147] <... mount resumed>) = 0 [pid 9145] <... mkdir resumed>) = 0 [pid 9144] <... ioctl resumed>) = 0 [pid 9147] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9145] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9144] close(4 [pid 9147] <... openat resumed>) = 3 [pid 9145] <... futex resumed>) = 1 [pid 9144] <... close resumed>) = 0 [pid 9147] chdir("./file0" [pid 9145] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9144] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9147] <... chdir resumed>) = 0 [pid 9144] <... futex resumed>) = 1 [pid 9142] <... futex resumed>) = 0 [pid 9141] <... futex resumed>) = 0 [pid 9147] ioctl(4, LOOP_CLR_FD [pid 9144] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9147] <... ioctl resumed>) = 0 [pid 9142] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9141] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9147] close(4) = 0 [pid 9147] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9146] <... futex resumed>) = 0 [pid 9147] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9146] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9145] <... futex resumed>) = 0 [pid 9144] <... futex resumed>) = 0 [pid 9142] <... futex resumed>) = 1 [pid 9141] <... futex resumed>) = 1 [pid 9147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9146] <... futex resumed>) = 0 [pid 9145] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 243.119952][ T9147] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 243.138104][ T9147] REISERFS (device loop0): checking transaction log (loop0) [ 243.147081][ T9147] REISERFS (device loop0): Using r5 hash to sort names [ 243.154290][ T9147] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 243.167515][ T9147] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9144] mkdir("./file1", 000 [pid 9142] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9141] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9152] <... write resumed>) = 4 [pid 9147] mkdir("./file1", 000 [pid 9146] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9144] <... mkdir resumed>) = 0 [pid 9152] close(3 [pid 9147] <... mkdir resumed>) = 0 [pid 9144] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9147] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9144] <... futex resumed>) = 1 [pid 9142] <... futex resumed>) = 0 [pid 9152] <... close resumed>) = 0 [pid 9147] <... futex resumed>) = 1 [pid 9146] <... futex resumed>) = 0 [pid 9144] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9142] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9147] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9146] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9142] <... futex resumed>) = 0 [pid 9152] symlink("/dev/binderfs", "./binderfs" [pid 9147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9146] <... futex resumed>) = 0 [pid 9144] mkdir("./bus", 000 [pid 9142] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9152] <... symlink resumed>) = 0 [pid 9147] mkdir("./bus", 000 [pid 9146] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9144] <... mkdir resumed>) = 0 [pid 9152] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9147] <... mkdir resumed>) = 0 [pid 9144] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9147] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9144] <... futex resumed>) = 1 [pid 9142] <... futex resumed>) = 0 [pid 9152] <... futex resumed>) = 0 [pid 9147] <... futex resumed>) = 1 [pid 9146] <... futex resumed>) = 0 [pid 9144] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9142] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9147] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9146] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9142] <... futex resumed>) = 0 [pid 9147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9146] <... futex resumed>) = 0 [pid 9144] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9142] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9152] <... mmap resumed>) = 0x7f38e1b78000 [pid 9147] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9146] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 243.183073][ T9145] overlayfs: upper fs needs to support d_type. [ 243.191853][ T9145] overlayfs: upper fs does not support tmpfile. [ 243.205720][ T9144] overlayfs: upper fs needs to support d_type. [ 243.212911][ T9144] overlayfs: upper fs does not support tmpfile. [ 243.219625][ T9147] overlayfs: upper fs needs to support d_type. [ 243.225806][ T9147] overlayfs: upper fs does not support tmpfile. [pid 9152] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9141] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9152] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9141] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9152] <... clone resumed>, parent_tid=[9153], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9153 [pid 9141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9142] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9142] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9142] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9146] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9142] <... mprotect resumed>) = 0 [pid 9146] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9142] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9146] <... futex resumed>) = 0 [pid 9146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9142] <... clone resumed>, parent_tid=[9154], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9154 [pid 9146] <... mmap resumed>) = 0x7f38d9b57000 [pid 9142] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9146] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9142] <... futex resumed>) = 0 [pid 9146] <... mprotect resumed>) = 0 [pid 9142] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9146] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9155], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9155 [pid 9146] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9146] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9153 attached [pid 9153] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9153] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9154 attached [pid 9154] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9154] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9154] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9141] <... mmap resumed>) = 0x7f38d9b57000 [pid 9141] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9141] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9152] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9141] <... clone resumed>, parent_tid=[9156], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9156 [pid 9141] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9152] <... futex resumed>) = 1 ./strace-static-x86_64: Process 9155 attached [pid 9152] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9155] set_robust_list(0x7f38d9b779e0, 24 [pid 9141] <... futex resumed>) = 0 [pid 9141] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9153] <... futex resumed>) = 0 [pid 9153] memfd_create("syzkaller", 0) = 3 [pid 9153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9155] <... set_robust_list resumed>) = 0 [pid 9155] mkdir(".", 0777 [pid 9144] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9155] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9144] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9155] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, ""./strace-static-x86_64: Process 9156 attached [pid 9144] <... futex resumed>) = 0 [pid 9144] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9156] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9156] mkdir(".", 0777 [pid 9155] <... mount resumed>) = 0 [pid 9155] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9155] chdir(".") = 0 [ 243.233726][ T9145] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 243.241690][ T9147] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 243.242229][ T9144] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 243.249936][ T9145] overlayfs: failed to resolve './file0': -2 [ 243.257750][ T9144] overlayfs: failed to resolve './file0': -2 [pid 9155] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9154] <... mount resumed>) = 0 [pid 9154] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9154] chdir(".") = 0 [pid 9154] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9142] <... futex resumed>) = 0 [pid 9142] exit_group(0) = ? [pid 9154] <... futex resumed>) = ? [pid 9154] +++ exited with 0 +++ [pid 9156] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9156] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9155] <... futex resumed>) = 1 [pid 9146] <... futex resumed>) = 0 [pid 9144] <... futex resumed>) = ? [pid 9155] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9156] <... mount resumed>) = 0 [pid 9156] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9144] +++ exited with 0 +++ [pid 9142] +++ exited with 0 +++ [pid 9147] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9142, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 9147] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9147] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9146] exit_group(0 [pid 5003] umount2("./234", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9155] <... futex resumed>) = ? [pid 9147] <... futex resumed>) = ? [pid 9146] <... exit_group resumed>) = ? [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9155] +++ exited with 0 +++ [pid 9147] +++ exited with 0 +++ [pid 9146] +++ exited with 0 +++ [pid 5003] openat(AT_FDCWD, "./234", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9146, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9145] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9145] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] umount2("./234", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9145] <... futex resumed>) = 0 [pid 5003] umount2("./234/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9145] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./234", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] lstat("./234/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5003] unlink("./234/binderfs" [pid 4998] fstat(3, [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9156] <... openat resumed>) = 4 [pid 9153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./234/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9156] chdir("." [pid 4998] lstat("./234/binderfs", [pid 9156] <... chdir resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9156] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] unlink("./234/binderfs" [pid 9156] <... futex resumed>) = 1 [pid 9141] <... futex resumed>) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 9156] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [ 243.282948][ T9147] overlayfs: failed to resolve './file0': -2 [pid 4998] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9141] exit_group(0 [pid 9156] <... futex resumed>) = ? [pid 9145] <... futex resumed>) = ? [pid 9141] <... exit_group resumed>) = ? [pid 9156] +++ exited with 0 +++ [pid 9145] +++ exited with 0 +++ [pid 9141] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9141, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./234", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./234", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./234/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./234/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./234/binderfs") = 0 [pid 4999] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./234/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./234/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4 [pid 4998] <... umount2 resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 4998] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] rmdir("./234/file0" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... rmdir resumed>) = 0 [pid 4998] lstat("./234/file0", [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] close(3 [pid 4998] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] rmdir("./234" [pid 4998] openat(AT_FDCWD, "./234/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... rmdir resumed>) = 0 [pid 4998] <... openat resumed>) = 4 [pid 5003] mkdir("./235", 0777 [pid 4998] fstat(4, [pid 9153] <... write resumed>) = 4194304 [pid 5003] <... mkdir resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9153] munmap(0x7f38d9778000, 4194304 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] getdents64(4, [pid 5003] <... openat resumed>) = 3 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9153] <... munmap resumed>) = 0 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4998] getdents64(4, [pid 9153] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9153] <... openat resumed>) = 4 [pid 5003] close(3 [pid 4998] close(4 [pid 9153] ioctl(4, LOOP_SET_FD, 3 [pid 5003] <... close resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] rmdir("./234/file0" [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9157 [pid 4998] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 9157 attached [pid 9157] set_robust_list(0x555556b565e0, 24) = 0 [pid 9157] chdir("./235") = 0 [pid 9157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9157] setpgid(0, 0) = 0 [pid 9157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] getdents64(3, [pid 9153] <... ioctl resumed>) = 0 [pid 9153] close(3 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9153] <... close resumed>) = 0 [pid 4998] close(3 [pid 9153] mkdir("./file0", 0777 [pid 4998] <... close resumed>) = 0 [pid 9157] write(3, "1000", 4 [pid 4998] rmdir("./234" [pid 9157] <... write resumed>) = 4 [pid 9153] <... mkdir resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./235", 0777 [pid 9153] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9157] close(3) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 9157] symlink("/dev/binderfs", "./binderfs" [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9157] <... symlink resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 9157] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./234/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./234/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9157] <... futex resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9159 attached [pid 9157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] <... openat resumed>) = 4 [pid 9157] <... mmap resumed>) = 0x7f38e1b78000 [pid 4999] fstat(4, [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9159 [pid 9157] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9157] <... mprotect resumed>) = 0 [pid 4999] getdents64(4, [ 243.398022][ T9153] loop2: detected capacity change from 0 to 8192 [ 243.414928][ T9153] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.428132][ T9153] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 243.437672][ T9153] REISERFS (device loop2): using ordered data mode [pid 9157] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, [pid 9157] <... clone resumed>, parent_tid=[9160], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9160 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9157] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] close(4./strace-static-x86_64: Process 9160 attached [pid 9159] set_robust_list(0x555556b565e0, 24 [pid 9157] <... futex resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 9157] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] rmdir("./234/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./234") = 0 [pid 4999] mkdir("./235", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3 [pid 9160] set_robust_list(0x7f38e1b989e0, 24 [pid 9159] <... set_robust_list resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9161 ./strace-static-x86_64: Process 9161 attached [pid 9161] set_robust_list(0x555556b565e0, 24) = 0 [pid 9161] chdir("./235") = 0 [pid 9161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9161] setpgid(0, 0) = 0 [pid 9161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9160] <... set_robust_list resumed>) = 0 [pid 9159] chdir("./235" [pid 9161] <... openat resumed>) = 3 [pid 9160] memfd_create("syzkaller", 0 [pid 9159] <... chdir resumed>) = 0 [pid 9160] <... memfd_create resumed>) = 3 [pid 9159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9159] <... prctl resumed>) = 0 [pid 9161] write(3, "1000", 4 [pid 9160] <... mmap resumed>) = 0x7f38d9778000 [pid 9159] setpgid(0, 0) = 0 [pid 9159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9161] <... write resumed>) = 4 [pid 9159] <... openat resumed>) = 3 [pid 9161] close(3 [pid 9159] write(3, "1000", 4 [pid 9161] <... close resumed>) = 0 [pid 9159] <... write resumed>) = 4 [pid 9161] symlink("/dev/binderfs", "./binderfs" [pid 9159] close(3 [pid 9161] <... symlink resumed>) = 0 [pid 9159] <... close resumed>) = 0 [pid 9161] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9159] symlink("/dev/binderfs", "./binderfs" [pid 9161] <... futex resumed>) = 0 [pid 9159] <... symlink resumed>) = 0 [pid 9161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [ 243.444317][ T9153] reiserfs: using flush barriers [ 243.451349][ T9153] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 243.468555][ T9153] REISERFS (device loop2): checking transaction log (loop2) [ 243.478343][ T9153] REISERFS (device loop2): Using r5 hash to sort names [ 243.485568][ T9153] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9159] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9161] <... mmap resumed>) = 0x7f38e1b78000 [pid 9159] <... futex resumed>) = 0 [pid 9161] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9161] <... mprotect resumed>) = 0 [pid 9159] <... mmap resumed>) = 0x7f38e1b78000 [pid 9161] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9159] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9161] <... clone resumed>, parent_tid=[9162], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9162 [pid 9159] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9161] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9159] <... clone resumed>, parent_tid=[9163], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9163 [pid 9161] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9159] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9159] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9163 attached [pid 9163] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9163] memfd_create("syzkaller", 0./strace-static-x86_64: Process 9162 attached [pid 9153] <... mount resumed>) = 0 [pid 9162] set_robust_list(0x7f38e1b989e0, 24 [pid 9153] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9162] <... set_robust_list resumed>) = 0 [pid 9153] <... openat resumed>) = 3 [pid 9163] <... memfd_create resumed>) = 3 [pid 9163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9162] memfd_create("syzkaller", 0 [pid 9153] chdir("./file0" [pid 9163] <... mmap resumed>) = 0x7f38d9778000 [pid 9162] <... memfd_create resumed>) = 3 [pid 9153] <... chdir resumed>) = 0 [pid 9162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9153] ioctl(4, LOOP_CLR_FD [pid 9163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9153] <... ioctl resumed>) = 0 [pid 9153] close(4 [pid 9162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9153] <... close resumed>) = 0 [pid 9153] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9152] <... futex resumed>) = 0 [pid 9153] mkdir("./file1", 000 [pid 9152] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9153] <... mkdir resumed>) = 0 [pid 9153] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9152] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9153] <... futex resumed>) = 0 [pid 9153] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9152] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9153] <... futex resumed>) = 0 [pid 9152] <... futex resumed>) = 1 [pid 9153] mkdir("./bus", 000 [pid 9152] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9153] <... mkdir resumed>) = 0 [pid 9153] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9152] <... futex resumed>) = 0 [pid 9153] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9152] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9152] <... futex resumed>) = 0 [ 243.498968][ T9153] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9153] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9152] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9160] <... write resumed>) = 4194304 [pid 9160] munmap(0x7f38d9778000, 4194304) = 0 [pid 9160] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9160] ioctl(4, LOOP_SET_FD, 3 [pid 9163] <... write resumed>) = 4194304 [pid 9162] <... write resumed>) = 4194304 [pid 9160] <... ioctl resumed>) = 0 [pid 9160] close(3) = 0 [pid 9160] mkdir("./file0", 0777 [pid 9163] munmap(0x7f38d9778000, 4194304 [pid 9162] munmap(0x7f38d9778000, 4194304 [pid 9160] <... mkdir resumed>) = 0 [pid 9163] <... munmap resumed>) = 0 [pid 9160] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9162] <... munmap resumed>) = 0 [pid 9162] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9163] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9162] <... openat resumed>) = 4 [ 243.556035][ T9153] overlayfs: upper fs needs to support d_type. [ 243.562294][ T9153] overlayfs: upper fs does not support tmpfile. [ 243.593029][ T9160] loop5: detected capacity change from 0 to 8192 [ 243.593386][ T9153] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9163] ioctl(4, LOOP_SET_FD, 3 [pid 9162] ioctl(4, LOOP_SET_FD, 3 [pid 9163] <... ioctl resumed>) = 0 [pid 9162] <... ioctl resumed>) = 0 [pid 9152] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9152] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9152] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9152] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9165], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9165 [pid 9152] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9152] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9163] close(3) = 0 [pid 9163] mkdir("./file0", 0777) = 0 [pid 9163] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9165 attached [pid 9162] close(3) = 0 [pid 9162] mkdir("./file0", 0777) = 0 [pid 9162] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9165] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9165] mkdir(".", 0777) = -1 EEXIST (File exists) [ 243.612280][ T9153] overlayfs: failed to resolve './file0': -2 [ 243.612472][ T9163] loop0: detected capacity change from 0 to 8192 [ 243.619462][ T9160] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.624936][ T9162] loop1: detected capacity change from 0 to 8192 [ 243.638684][ T9160] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 243.653588][ T9160] REISERFS (device loop5): using ordered data mode [pid 9165] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9153] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9153] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9153] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9165] <... mount resumed>) = 0 [pid 9165] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9165] chdir(".") = 0 [pid 9165] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9152] <... futex resumed>) = 0 [pid 9152] exit_group(0 [pid 9153] <... futex resumed>) = ? [pid 9152] <... exit_group resumed>) = ? [pid 9153] +++ exited with 0 +++ [pid 9165] <... futex resumed>) = ? [pid 9165] +++ exited with 0 +++ [pid 9152] +++ exited with 0 +++ [ 243.658138][ T9163] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.673416][ T9160] reiserfs: using flush barriers [ 243.674669][ T9162] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.694083][ T9160] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9152, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5000] umount2("./235", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./235", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./235/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./235/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./235/binderfs") = 0 [ 243.698878][ T9162] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 243.710719][ T9163] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 243.720069][ T9162] REISERFS (device loop1): using ordered data mode [ 243.729358][ T9160] REISERFS (device loop5): checking transaction log (loop5) [ 243.735452][ T9162] reiserfs: using flush barriers [ 243.748601][ T9163] REISERFS (device loop0): using ordered data mode [ 243.755249][ T9163] reiserfs: using flush barriers [ 243.761809][ T9160] REISERFS (device loop5): Using r5 hash to sort names [ 243.763985][ T9162] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 243.769072][ T9163] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 243.801792][ T9162] REISERFS (device loop1): checking transaction log (loop1) [pid 5000] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9160] <... mount resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 9160] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9160] <... openat resumed>) = 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./235/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9160] chdir("./file0" [pid 5000] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9160] <... chdir resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 243.801788][ T9160] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: checking transaction log (loop1) [ 243.801788][ T9160] [ 243.801867][ T9160] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 243.809927][ T9162] REISERFS (device loop1): Using r5 hash to sort names [ 243.837102][ T9163] REISERFS (device loop0): checking transaction log (loop0) [ 243.847365][ T9163] REISERFS (device loop0): Using r5 hash to sort names [pid 9160] ioctl(4, LOOP_CLR_FD [pid 5000] openat(AT_FDCWD, "./235/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9160] <... ioctl resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 9162] <... mount resumed>) = 0 [pid 9162] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9162] chdir("./file0") = 0 [pid 9162] ioctl(4, LOOP_CLR_FD) = 0 [pid 9162] close(4 [pid 9160] close(4 [pid 5000] fstat(4, [pid 9160] <... close resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9160] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5000] getdents64(4, [pid 9160] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9157] <... futex resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9157] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] getdents64(4, [pid 9160] <... futex resumed>) = 0 [pid 9157] <... futex resumed>) = 1 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9160] mkdir("./file1", 000 [pid 5000] close(4 [pid 9160] <... mkdir resumed>) = 0 [pid 9157] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9160] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... close resumed>) = 0 [pid 9160] <... futex resumed>) = 0 [pid 5000] rmdir("./235/file0" [pid 9160] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9157] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... rmdir resumed>) = 0 [pid 9160] mkdir("./bus", 000 [pid 5000] getdents64(3, [pid 9157] <... futex resumed>) = 0 [pid 9160] <... mkdir resumed>) = 0 [pid 9157] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9160] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9160] <... futex resumed>) = 0 [pid 9157] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] close(3 [pid 9160] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9157] <... futex resumed>) = 0 [pid 9157] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] <... close resumed>) = 0 [ 243.852917][ T9162] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 243.854749][ T9163] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 243.867512][ T9162] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 243.880664][ T9163] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5000] rmdir("./235" [pid 9162] <... close resumed>) = 0 [pid 9162] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9161] <... futex resumed>) = 0 [pid 9161] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9161] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9162] <... futex resumed>) = 1 [pid 9162] mkdir("./file1", 000) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 9162] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9161] <... futex resumed>) = 0 [pid 9161] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9161] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9162] <... futex resumed>) = 1 [pid 9162] mkdir("./bus", 000 [pid 5000] mkdir("./236", 0777 [pid 9162] <... mkdir resumed>) = 0 [pid 9162] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9161] <... futex resumed>) = 0 [pid 9161] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9161] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9163] <... mount resumed>) = 0 [pid 5000] close(3 [pid 9163] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... close resumed>) = 0 [pid 9163] <... openat resumed>) = 3 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9162] <... futex resumed>) = 1 [pid 9162] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9163] chdir("./file0") = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9168 [pid 9163] ioctl(4, LOOP_CLR_FD) = 0 [pid 9163] close(4) = 0 [pid 9163] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9159] <... futex resumed>) = 0 [pid 9159] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9159] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9168 attached [pid 9168] set_robust_list(0x555556b565e0, 24) = 0 [pid 9168] chdir("./236") = 0 [pid 9168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9168] setpgid(0, 0) = 0 [pid 9168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9168] write(3, "1000", 4) = 4 [pid 9168] close(3) = 0 [pid 9163] mkdir("./file1", 000 [pid 9168] symlink("/dev/binderfs", "./binderfs" [pid 9163] <... mkdir resumed>) = 0 [pid 9163] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9159] <... futex resumed>) = 0 [pid 9163] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9159] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9159] <... futex resumed>) = 0 [pid 9159] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9168] <... symlink resumed>) = 0 [pid 9168] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9168] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9168] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9169], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9169 [pid 9168] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9168] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9169 attached [pid 9169] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9169] memfd_create("syzkaller", 0) = 3 [pid 9169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9157] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9157] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9157] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9157] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9170], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9170 [pid 9157] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 243.911997][ T9160] overlayfs: upper fs needs to support d_type. [ 243.921223][ T9160] overlayfs: upper fs does not support tmpfile. [ 243.931616][ T9160] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 243.940534][ T9162] overlayfs: upper fs needs to support d_type. [ 243.940894][ T9160] overlayfs: failed to resolve './file0': -2 [pid 9157] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9163] mkdir("./bus", 000) = 0 [pid 9163] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9159] <... futex resumed>) = 0 [pid 9163] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9159] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9159] <... futex resumed>) = 0 [pid 9163] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9159] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9161] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9161] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9161] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9161] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9160] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9161] <... clone resumed>, parent_tid=[9171], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9171 [pid 9160] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9161] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9160] <... futex resumed>) = 0 [pid 9161] <... futex resumed>) = 0 [pid 9160] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9161] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9170 attached [pid 9170] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9170] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9170] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, ""./strace-static-x86_64: Process 9171 attached [pid 9171] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9171] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9171] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9170] <... mount resumed>) = 0 [pid 9170] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9171] <... mount resumed>) = 0 [pid 9170] chdir(".") = 0 [pid 9170] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9157] <... futex resumed>) = 0 [pid 9157] exit_group(0) = ? [pid 9170] <... futex resumed>) = ? [pid 9170] +++ exited with 0 +++ [pid 9171] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9171] chdir(".") = 0 [pid 9171] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9161] <... futex resumed>) = 0 [pid 9171] <... futex resumed>) = 1 [pid 9171] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9160] <... futex resumed>) = ? [pid 9160] +++ exited with 0 +++ [pid 9157] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9157, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5003] umount2("./235", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./235", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./235/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./235/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./235/binderfs") = 0 [ 243.963052][ T9162] overlayfs: upper fs does not support tmpfile. [ 243.972402][ T9163] overlayfs: upper fs needs to support d_type. [ 243.984489][ T9163] overlayfs: upper fs does not support tmpfile. [ 243.993402][ T9162] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 244.003546][ T9163] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5003] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9159] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9159] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9159] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9159] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9172], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9172 [pid 9159] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9159] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9163] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9163] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9163] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9172 attached [pid 9172] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9172] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9172] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [ 244.019473][ T9163] overlayfs: failed to resolve './file0': -2 [ 244.023268][ T9162] overlayfs: failed to resolve './file0': -2 [pid 9172] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9172] chdir(".") = 0 [pid 9172] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9159] <... futex resumed>) = 0 [pid 9159] exit_group(0 [pid 9163] <... futex resumed>) = ? [pid 9159] <... exit_group resumed>) = ? [pid 9172] +++ exited with 0 +++ [pid 9163] +++ exited with 0 +++ [pid 9159] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9159, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4998] umount2("./235", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./235", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./235/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./235/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./235/binderfs" [pid 5003] <... umount2 resumed>) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 4998] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./235/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./235/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9162] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] getdents64(4, [pid 9162] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9162] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9161] exit_group(0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./235/file0" [pid 9171] <... futex resumed>) = ? [pid 9162] <... futex resumed>) = ? [pid 9161] <... exit_group resumed>) = ? [pid 9171] +++ exited with 0 +++ [pid 9162] +++ exited with 0 +++ [pid 5003] <... rmdir resumed>) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 9161] +++ exited with 0 +++ [pid 5003] rmdir("./235") = 0 [pid 5003] mkdir("./236", 0777 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9161, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5003] <... mkdir resumed>) = 0 [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] <... restart_syscall resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] umount2("./235", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] close(3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... close resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./235", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9173 ./strace-static-x86_64: Process 9173 attached [pid 9173] set_robust_list(0x555556b565e0, 24) = 0 [pid 9173] chdir("./236" [pid 4999] <... openat resumed>) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./235/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./235/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./235/binderfs" [pid 9173] <... chdir resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 9173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9173] <... prctl resumed>) = 0 [pid 9173] setpgid(0, 0) = 0 [pid 9173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9173] write(3, "1000", 4) = 4 [pid 9173] close(3) = 0 [pid 9173] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9173] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9173] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9173] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9174], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9174 [pid 9173] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9173] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9174 attached [pid 9174] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9174] memfd_create("syzkaller", 0) = 3 [pid 9174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9169] <... write resumed>) = 4194304 [pid 9169] munmap(0x7f38d9778000, 4194304) = 0 [pid 9169] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9169] ioctl(4, LOOP_SET_FD, 3 [pid 4999] <... umount2 resumed>) = 0 [pid 9169] <... ioctl resumed>) = 0 [pid 9169] close(3 [pid 4999] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9169] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9169] mkdir("./file0", 0777 [pid 4999] lstat("./235/file0", [pid 9169] <... mkdir resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9169] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 4999] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./235/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, [pid 9174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] close(4 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... close resumed>) = 0 [pid 4998] lstat("./235/file0", [ 244.171675][ T9169] loop2: detected capacity change from 0 to 8192 [ 244.192635][ T9169] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 244.206267][ T9169] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 4999] rmdir("./235/file0" [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4998] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(3, [pid 9174] <... write resumed>) = 4194304 [pid 9174] munmap(0x7f38d9778000, 4194304) = 0 [pid 9174] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9174] ioctl(4, LOOP_SET_FD, 3 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9174] <... ioctl resumed>) = 0 [pid 9174] close(3) = 0 [pid 9174] mkdir("./file0", 0777 [pid 4999] close(3 [pid 4998] openat(AT_FDCWD, "./235/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... close resumed>) = 0 [pid 4998] <... openat resumed>) = 4 [pid 4999] rmdir("./235" [pid 4998] fstat(4, [pid 4999] <... rmdir resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] mkdir("./236", 0777 [pid 4998] getdents64(4, [pid 4999] <... mkdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4998] getdents64(4, [pid 4999] <... openat resumed>) = 3 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] close(4 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... close resumed>) = 0 [pid 4999] close(3 [pid 4998] rmdir("./235/file0" [pid 4999] <... close resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9176 [pid 4998] close(3) = 0 [pid 4998] rmdir("./235") = 0 [pid 4998] mkdir("./236", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 ./strace-static-x86_64: Process 9176 attached [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9176] set_robust_list(0x555556b565e0, 24 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9177 [pid 9176] <... set_robust_list resumed>) = 0 [pid 9176] chdir("./236") = 0 [pid 9176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9174] <... mkdir resumed>) = 0 [pid 9174] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9176] setpgid(0, 0) = 0 [pid 9176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 244.215786][ T9169] REISERFS (device loop2): using ordered data mode [ 244.223628][ T9169] reiserfs: using flush barriers [ 244.228249][ T9174] loop5: detected capacity change from 0 to 8192 [ 244.229913][ T9169] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 244.252333][ T9169] REISERFS (device loop2): checking transaction log (loop2) [ 244.261103][ T9169] REISERFS (device loop2): Using r5 hash to sort names [pid 9176] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 9177 attached [pid 9176] close(3 [pid 9177] set_robust_list(0x555556b565e0, 24 [pid 9176] <... close resumed>) = 0 [pid 9177] <... set_robust_list resumed>) = 0 [pid 9176] symlink("/dev/binderfs", "./binderfs" [pid 9177] chdir("./236" [pid 9176] <... symlink resumed>) = 0 [pid 9177] <... chdir resumed>) = 0 [pid 9176] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9176] <... futex resumed>) = 0 [pid 9177] <... prctl resumed>) = 0 [pid 9176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9177] setpgid(0, 0 [pid 9176] <... mmap resumed>) = 0x7f38e1b78000 [pid 9176] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9169] <... mount resumed>) = 0 [pid 9169] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9169] chdir("./file0") = 0 [pid 9169] ioctl(4, LOOP_CLR_FD) = 0 [pid 9169] close(4) = 0 [pid 9169] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9169] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9177] <... setpgid resumed>) = 0 [pid 9177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9177] write(3, "1000", 4) = 4 [pid 9177] close(3) = 0 [pid 9177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9177] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9177] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9177] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9179], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9179 [pid 9177] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9177] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9179 attached [pid 9179] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9179] memfd_create("syzkaller", 0) = 3 [pid 9179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9168] <... futex resumed>) = 0 [pid 9168] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9169] <... futex resumed>) = 0 [pid 9168] <... futex resumed>) = 1 [pid 9176] <... mprotect resumed>) = 0 [pid 9169] mkdir("./file1", 000 [pid 9168] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9169] <... mkdir resumed>) = 0 [pid 9176] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9169] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9168] <... futex resumed>) = 0 [pid 9176] <... clone resumed>, parent_tid=[9180], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9180 [pid 9169] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9168] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9176] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9169] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9168] <... futex resumed>) = 0 [pid 9176] <... futex resumed>) = 0 [pid 9169] mkdir("./bus", 000 [pid 9168] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9176] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9169] <... mkdir resumed>) = 0 [pid 9169] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9168] <... futex resumed>) = 0 [pid 9169] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9168] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9169] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9168] <... futex resumed>) = 0 [pid 9169] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9168] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9180 attached [pid 9180] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9180] memfd_create("syzkaller", 0) = 3 [pid 9180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 244.268610][ T9169] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 244.281851][ T9169] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 244.282361][ T9174] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 244.309017][ T9169] overlayfs: upper fs needs to support d_type. [ 244.315237][ T9169] overlayfs: upper fs does not support tmpfile. [pid 9179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9180] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9168] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9168] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9168] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9168] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9181], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9181 [pid 9168] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9168] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9181 attached [pid 9181] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9181] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9181] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9181] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9181] chdir(".") = 0 [pid 9181] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9181] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9168] <... futex resumed>) = 0 [ 244.341696][ T9169] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 244.368796][ T9169] overlayfs: failed to resolve './file0': -2 [ 244.380562][ T9174] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 9169] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9180] <... write resumed>) = 4194304 [pid 9179] <... write resumed>) = 4194304 [pid 9169] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9169] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9180] munmap(0x7f38d9778000, 4194304 [pid 9168] exit_group(0 [pid 9181] <... futex resumed>) = ? [pid 9168] <... exit_group resumed>) = ? [pid 9181] +++ exited with 0 +++ [pid 9169] <... futex resumed>) = ? [pid 9169] +++ exited with 0 +++ [pid 9168] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9168, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./236", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./236", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./236/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./236/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./236/binderfs") = 0 [pid 5000] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9180] <... munmap resumed>) = 0 [pid 9180] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9179] munmap(0x7f38d9778000, 4194304) = 0 [pid 9180] close(3) = 0 [pid 9180] mkdir("./file0", 0777) = 0 [pid 9179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9180] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 244.390365][ T9174] REISERFS (device loop5): using ordered data mode [ 244.397135][ T9174] reiserfs: using flush barriers [ 244.403036][ T9174] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 244.417509][ T9180] loop1: detected capacity change from 0 to 8192 [ 244.419828][ T9174] REISERFS (device loop5): checking transaction log (loop5) [pid 9179] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9179] close(3) = 0 [pid 9179] mkdir("./file0", 0777) = 0 [ 244.436983][ T9179] loop0: detected capacity change from 0 to 8192 [ 244.441674][ T9174] REISERFS (device loop5): Using r5 hash to sort names [ 244.450890][ T9179] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 244.453889][ T9174] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 244.464400][ T9180] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9179] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./236/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./236/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./236/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./236") = 0 [ 244.490534][ T9179] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 244.500658][ T9179] REISERFS (device loop0): using ordered data mode [ 244.507553][ T9180] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 244.516547][ T9174] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 244.516790][ T9180] REISERFS (device loop1): using ordered data mode [ 244.530398][ T9179] reiserfs: using flush barriers [ 244.532617][ T9180] reiserfs: using flush barriers [pid 5000] mkdir("./237", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 9174] <... mount resumed>) = 0 [pid 9174] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9184 ./strace-static-x86_64: Process 9184 attached [pid 9184] set_robust_list(0x555556b565e0, 24) = 0 [pid 9184] chdir("./237" [pid 9174] <... openat resumed>) = 3 [pid 9174] chdir("./file0") = 0 [pid 9184] <... chdir resumed>) = 0 [pid 9174] ioctl(4, LOOP_CLR_FD) = 0 [ 244.543716][ T9180] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 244.561008][ T9180] REISERFS (device loop1): checking transaction log (loop1) [ 244.569654][ T9179] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 244.570266][ T9180] REISERFS (device loop1): Using r5 hash to sort names [pid 9184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9184] setpgid(0, 0) = 0 [pid 9184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9184] write(3, "1000", 4) = 4 [pid 9184] close(3 [pid 9174] close(4) = 0 [pid 9184] <... close resumed>) = 0 [pid 9184] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9184] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9184] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9174] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9173] <... futex resumed>) = 0 [pid 9174] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9173] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9173] <... futex resumed>) = 0 [pid 9174] mkdir("./file1", 000 [pid 9173] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9184] <... mprotect resumed>) = 0 [pid 9184] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9174] <... mkdir resumed>) = 0 [pid 9174] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9173] <... futex resumed>) = 0 [pid 9174] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9173] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9173] <... futex resumed>) = 0 [pid 9184] <... clone resumed>, parent_tid=[9185], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9185 [pid 9184] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9184] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9185 attached [pid 9185] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9185] memfd_create("syzkaller", 0) = 3 [pid 9185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9174] mkdir("./bus", 000 [pid 9173] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9174] <... mkdir resumed>) = 0 [pid 9174] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9173] <... futex resumed>) = 0 [pid 9174] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 244.586298][ T9179] REISERFS (device loop0): checking transaction log (loop0) [ 244.614629][ T9179] REISERFS (device loop0): Using r5 hash to sort names [ 244.623165][ T9180] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9173] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9173] <... futex resumed>) = 0 [ 244.636743][ T9179] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 244.657395][ T9174] overlayfs: upper fs needs to support d_type. [ 244.663674][ T9174] overlayfs: upper fs does not support tmpfile. [ 244.670701][ T9174] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 244.677834][ T9179] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9173] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9179] <... mount resumed>) = 0 [pid 9179] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9185] <... write resumed>) = 4194304 [pid 9185] munmap(0x7f38d9778000, 4194304 [pid 9179] <... openat resumed>) = 3 [pid 9179] chdir("./file0") = 0 [pid 9180] <... mount resumed>) = 0 [pid 9180] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9179] ioctl(4, LOOP_CLR_FD [pid 9180] <... openat resumed>) = 3 [pid 9179] <... ioctl resumed>) = 0 [pid 9179] close(4 [pid 9180] chdir("./file0" [pid 9185] <... munmap resumed>) = 0 [pid 9185] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9185] ioctl(4, LOOP_SET_FD, 3 [pid 9180] <... chdir resumed>) = 0 [pid 9179] <... close resumed>) = 0 [pid 9173] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9173] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9173] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9173] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9186], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9186 [pid 9173] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9173] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9179] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9177] <... futex resumed>) = 0 [pid 9177] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9177] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9179] mkdir("./file1", 000) = 0 [pid 9179] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9177] <... futex resumed>) = 0 [pid 9179] mkdir("./bus", 000 [pid 9177] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9179] <... mkdir resumed>) = 0 [pid 9177] <... futex resumed>) = 0 [pid 9179] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9177] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9179] <... futex resumed>) = 0 [pid 9177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9179] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9177] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9177] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9180] ioctl(4, LOOP_CLR_FD) = 0 [pid 9180] close(4) = 0 [pid 9180] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9176] <... futex resumed>) = 0 [pid 9176] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9180] mkdir("./file1", 000) = 0 [pid 9176] <... futex resumed>) = 0 [pid 9176] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9186 attached [pid 9180] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9180] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9186] set_robust_list(0x7f38d9b779e0, 24 [pid 9176] <... futex resumed>) = 0 [pid 9186] <... set_robust_list resumed>) = 0 [pid 9176] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9186] mkdir(".", 0777 [pid 9180] <... futex resumed>) = 0 [pid 9176] <... futex resumed>) = 1 [pid 9180] mkdir("./bus", 000 [pid 9186] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9180] <... mkdir resumed>) = 0 [pid 9176] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9186] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9180] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9174] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 244.688053][ T9180] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 244.688582][ T9174] overlayfs: failed to resolve './file0': -2 [ 244.719122][ T9185] loop2: detected capacity change from 0 to 8192 [ 244.730927][ T9179] overlayfs: upper fs needs to support d_type. [pid 9186] <... mount resumed>) = 0 [pid 9185] <... ioctl resumed>) = 0 [pid 9180] <... futex resumed>) = 0 [pid 9176] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9174] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9180] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9174] <... futex resumed>) = 0 [pid 9174] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9186] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9185] close(3 [pid 9176] <... futex resumed>) = 0 [pid 9186] <... openat resumed>) = 4 [pid 9185] <... close resumed>) = 0 [pid 9176] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9185] mkdir("./file0", 0777 [pid 9186] chdir("." [pid 9185] <... mkdir resumed>) = 0 [pid 9186] <... chdir resumed>) = 0 [pid 9186] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9185] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9186] <... futex resumed>) = 1 [pid 9173] <... futex resumed>) = 0 [pid 9173] exit_group(0 [pid 9174] <... futex resumed>) = ? [pid 9173] <... exit_group resumed>) = ? [pid 9174] +++ exited with 0 +++ [pid 9186] +++ exited with 0 +++ [pid 9173] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9173, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5003] umount2("./236", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9177] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9177] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9177] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9177] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9188], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9188 [pid 9177] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9177] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] openat(AT_FDCWD, "./236", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 244.749354][ T9179] overlayfs: upper fs does not support tmpfile. [ 244.755747][ T9180] overlayfs: upper fs needs to support d_type. [ 244.756842][ T9179] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 244.776660][ T9180] overlayfs: upper fs does not support tmpfile. [ 244.777379][ T9179] overlayfs: failed to resolve './file0': -2 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9188 attached [pid 5003] getdents64(3, [pid 9188] set_robust_list(0x7f38d9b779e0, 24 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9176] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9176] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 9188] <... set_robust_list resumed>) = 0 [pid 9179] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9188] mkdir(".", 0777 [pid 9179] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9176] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5003] umount2("./236/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9176] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9188] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9179] <... futex resumed>) = 0 [pid 9176] <... futex resumed>) = 0 [pid 9188] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9179] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] lstat("./236/binderfs", [pid 9176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9176] <... mmap resumed>) = 0x7f38d9b57000 [pid 9176] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5003] unlink("./236/binderfs") = 0 [pid 9176] <... mprotect resumed>) = 0 [pid 5003] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9176] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9189], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9189 [pid 9176] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9176] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9188] <... mount resumed>) = 0 [pid 9188] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9188] chdir(".") = 0 [pid 9188] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9177] <... futex resumed>) = 0 [pid 9177] exit_group(0 [pid 9188] <... futex resumed>) = ? [pid 9179] <... futex resumed>) = ? [pid 9177] <... exit_group resumed>) = ? [pid 9188] +++ exited with 0 +++ [pid 9179] +++ exited with 0 +++ [pid 9177] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9177, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 4998] umount2("./236", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./236", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./236/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./236/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./236/binderfs") = 0 [pid 4998] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9189 attached [ 244.790745][ T9185] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 244.794582][ T9180] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 244.804483][ T9185] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 244.825790][ T9180] overlayfs: failed to resolve './file0': -2 [ 244.832614][ T9185] REISERFS (device loop2): using ordered data mode [pid 9180] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9180] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9180] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9189] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9189] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9189] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9189] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9189] chdir(".") = 0 [pid 9189] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9176] <... futex resumed>) = 0 [pid 9176] exit_group(0) = ? [pid 9189] <... futex resumed>) = ? [pid 9189] +++ exited with 0 +++ [pid 9180] <... futex resumed>) = ? [pid 9180] +++ exited with 0 +++ [pid 9176] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9176, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./236", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./236", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./236/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./236/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./236/binderfs") = 0 [pid 4999] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [ 244.847252][ T9185] reiserfs: using flush barriers [ 244.853411][ T9185] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 244.871331][ T9185] REISERFS (device loop2): checking transaction log (loop2) [ 244.893082][ T9185] REISERFS (device loop2): Using r5 hash to sort names [pid 4998] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9185] <... mount resumed>) = 0 [pid 4998] lstat("./236/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./236/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./236/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./236") = 0 [pid 4998] mkdir("./237", 0777 [pid 9185] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] <... mkdir resumed>) = 0 [pid 9185] <... openat resumed>) = 3 [pid 9185] chdir("./file0" [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9185] <... chdir resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9185] ioctl(4, LOOP_CLR_FD [pid 4998] ioctl(3, LOOP_CLR_FD [pid 9185] <... ioctl resumed>) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9185] close(4) = 0 [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9185] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9190 [pid 9185] <... futex resumed>) = 1 [pid 9184] <... futex resumed>) = 0 [pid 9185] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9184] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9184] <... futex resumed>) = 0 [pid 9185] mkdir("./file1", 000 [pid 9184] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9185] <... mkdir resumed>) = 0 [pid 9185] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9184] <... futex resumed>) = 0 [pid 9185] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9184] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9184] <... futex resumed>) = 0 [pid 9185] mkdir("./bus", 000 [pid 9184] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9185] <... mkdir resumed>) = 0 [pid 9185] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9184] <... futex resumed>) = 0 [pid 9185] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9184] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9184] <... futex resumed>) = 0 [pid 9185] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9184] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... umount2 resumed>) = 0 [ 244.915510][ T9185] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 244.928674][ T9185] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. ./strace-static-x86_64: Process 9190 attached [pid 9190] set_robust_list(0x555556b565e0, 24) = 0 [pid 9190] chdir("./237") = 0 [pid 9190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9190] setpgid(0, 0 [pid 5003] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9190] <... setpgid resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] lstat("./236/file0", [pid 9190] <... openat resumed>) = 3 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9190] write(3, "1000", 4 [pid 5003] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9190] <... write resumed>) = 4 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9190] close(3 [pid 5003] openat(AT_FDCWD, "./236/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9190] <... close resumed>) = 0 [pid 5003] <... openat resumed>) = 4 [pid 9190] symlink("/dev/binderfs", "./binderfs" [pid 5003] fstat(4, [pid 9190] <... symlink resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9190] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] getdents64(4, [pid 9190] <... futex resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] getdents64(4, [pid 9190] <... mmap resumed>) = 0x7f38e1b78000 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9190] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] close(4 [pid 9190] <... mprotect resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 9190] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5003] rmdir("./236/file0" [pid 9190] <... clone resumed>, parent_tid=[9191], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9191 [pid 5003] <... rmdir resumed>) = 0 [pid 9190] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] getdents64(3, [pid 9190] <... futex resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9190] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] close(3) = 0 [pid 5003] rmdir("./236") = 0 [pid 5003] mkdir("./237", 0777./strace-static-x86_64: Process 9191 attached [pid 9191] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9191] memfd_create("syzkaller", 0) = 3 [pid 9191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... mkdir resumed>) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./236/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./236/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9185] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9184] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5003] close(3 [pid 4999] getdents64(4, [pid 9185] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9184] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... close resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9184] <... futex resumed>) = 0 [pid 4999] close(4 [pid 9184] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./236/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./236") = 0 [pid 4999] mkdir("./237", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9185] <... futex resumed>) = 1 [pid 9184] <... futex resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9185] mkdir(".", 0777 [pid 9184] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=40000000} [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9192 [pid 9185] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9185] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9193 ./strace-static-x86_64: Process 9192 attached [pid 9192] set_robust_list(0x555556b565e0, 24) = 0 [pid 9192] chdir("./237" [pid 9185] <... mount resumed>) = 0 [pid 9185] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9185] chdir(".") = 0 [pid 9185] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9184] <... futex resumed>) = 0 [pid 9192] <... chdir resumed>) = 0 [pid 9185] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9184] exit_group(0 [pid 9192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9185] <... futex resumed>) = ? [pid 9184] <... exit_group resumed>) = ? [pid 9192] <... prctl resumed>) = 0 [pid 9185] +++ exited with 0 +++ [pid 9184] +++ exited with 0 +++ [pid 9192] setpgid(0, 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9184, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- ./strace-static-x86_64: Process 9193 attached [pid 9192] <... setpgid resumed>) = 0 [pid 9193] set_robust_list(0x555556b565e0, 24 [pid 9192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9193] <... set_robust_list resumed>) = 0 [pid 9192] <... openat resumed>) = 3 [pid 5000] umount2("./237", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9192] write(3, "1000", 4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9193] chdir("./237" [pid 9192] <... write resumed>) = 4 [pid 5000] openat(AT_FDCWD, "./237", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9193] <... chdir resumed>) = 0 [pid 9192] close(3 [pid 5000] <... openat resumed>) = 3 [pid 9193] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9192] <... close resumed>) = 0 [pid 5000] fstat(3, [pid 9193] <... prctl resumed>) = 0 [pid 9192] symlink("/dev/binderfs", "./binderfs" [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9193] setpgid(0, 0 [pid 9192] <... symlink resumed>) = 0 [pid 5000] getdents64(3, [pid 9193] <... setpgid resumed>) = 0 [pid 9192] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9192] <... futex resumed>) = 0 [ 244.968048][ T9185] overlayfs: upper fs needs to support d_type. [ 244.974304][ T9185] overlayfs: upper fs does not support tmpfile. [ 244.992687][ T9185] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 245.002302][ T9185] overlayfs: failed to resolve './file0': -2 [pid 5000] umount2("./237/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9193] <... openat resumed>) = 3 [pid 9192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9193] write(3, "1000", 4 [pid 9192] <... mmap resumed>) = 0x7f38e1b78000 [pid 5000] lstat("./237/binderfs", [pid 9193] <... write resumed>) = 4 [pid 9192] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9193] close(3 [pid 9192] <... mprotect resumed>) = 0 [pid 5000] unlink("./237/binderfs" [pid 9193] <... close resumed>) = 0 [pid 9192] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] <... unlink resumed>) = 0 [pid 9193] symlink("/dev/binderfs", "./binderfs" [pid 5000] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9194 attached [pid 9193] <... symlink resumed>) = 0 [pid 9192] <... clone resumed>, parent_tid=[9194], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9194 [pid 9191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9194] set_robust_list(0x7f38e1b989e0, 24 [pid 9193] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9192] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9194] <... set_robust_list resumed>) = 0 [pid 9193] <... futex resumed>) = 0 [pid 9194] memfd_create("syzkaller", 0 [pid 9193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9194] <... memfd_create resumed>) = 3 [pid 9193] <... mmap resumed>) = 0x7f38e1b78000 [pid 9194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9193] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9194] <... mmap resumed>) = 0x7f38d9778000 [pid 9193] <... mprotect resumed>) = 0 [pid 9193] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9192] <... futex resumed>) = 0 [pid 9193] <... clone resumed>, parent_tid=[9195], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9195 [pid 9192] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9193] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9193] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9195 attached [pid 9195] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9195] memfd_create("syzkaller", 0) = 3 [pid 9195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./237/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9191] <... write resumed>) = 4194304 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9191] munmap(0x7f38d9778000, 4194304 [pid 5000] openat(AT_FDCWD, "./237/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, [pid 9191] <... munmap resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, [pid 9191] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4 [pid 9191] <... openat resumed>) = 4 [pid 5000] <... close resumed>) = 0 [pid 9191] ioctl(4, LOOP_SET_FD, 3 [pid 5000] rmdir("./237/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./237") = 0 [pid 5000] mkdir("./238", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 9194] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9191] <... ioctl resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 9191] close(3 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9191] <... close resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9196 [pid 9191] mkdir("./file0", 0777) = 0 [pid 9191] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304./strace-static-x86_64: Process 9196 attached [pid 9196] set_robust_list(0x555556b565e0, 24) = 0 [pid 9196] chdir("./238") = 0 [pid 9196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9196] setpgid(0, 0) = 0 [pid 9196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9196] write(3, "1000", 4) = 4 [pid 9196] close(3) = 0 [pid 9196] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9196] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9196] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9196] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9198], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9198 [pid 9196] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9196] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9198 attached [pid 9198] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9198] memfd_create("syzkaller", 0) = 3 [pid 9198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 245.111524][ T9191] loop0: detected capacity change from 0 to 8192 [ 245.148605][ T9191] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9194] <... write resumed>) = 4194304 [pid 9194] munmap(0x7f38d9778000, 4194304 [pid 9195] <... write resumed>) = 4194304 [pid 9195] munmap(0x7f38d9778000, 4194304) = 0 [pid 9195] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9195] ioctl(4, LOOP_SET_FD, 3 [pid 9194] <... munmap resumed>) = 0 [pid 9198] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9194] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 245.172394][ T9191] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 245.193941][ T9191] REISERFS (device loop0): using ordered data mode [ 245.200627][ T9191] reiserfs: using flush barriers [ 245.203956][ T9195] loop5: detected capacity change from 0 to 8192 [pid 9194] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9194] close(3) = 0 [pid 9194] mkdir("./file0", 0777) = 0 [pid 9195] <... ioctl resumed>) = 0 [pid 9195] close(3) = 0 [pid 9195] mkdir("./file0", 0777 [pid 9194] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9195] <... mkdir resumed>) = 0 [ 245.207822][ T9191] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 245.217440][ T9194] loop1: detected capacity change from 0 to 8192 [ 245.234725][ T9191] REISERFS (device loop0): checking transaction log (loop0) [ 245.242834][ T9191] REISERFS (device loop0): Using r5 hash to sort names [ 245.250048][ T9191] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 245.263236][ T9191] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9195] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9198] <... write resumed>) = 4194304 [pid 9191] <... mount resumed>) = 0 [pid 9191] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9191] chdir("./file0") = 0 [pid 9191] ioctl(4, LOOP_CLR_FD) = 0 [pid 9191] close(4) = 0 [pid 9191] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9190] <... futex resumed>) = 0 [pid 9191] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9190] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9190] <... futex resumed>) = 0 [pid 9191] mkdir("./file1", 000 [pid 9190] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9191] <... mkdir resumed>) = 0 [pid 9191] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9190] <... futex resumed>) = 0 [pid 9191] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9190] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9190] <... futex resumed>) = 0 [pid 9191] mkdir("./bus", 000 [pid 9190] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9191] <... mkdir resumed>) = 0 [pid 9191] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9190] <... futex resumed>) = 0 [pid 9191] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9190] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9190] <... futex resumed>) = 0 [pid 9191] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9190] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9198] munmap(0x7f38d9778000, 4194304) = 0 [pid 9198] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 245.272648][ T9194] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 245.285635][ T9191] overlayfs: upper fs needs to support d_type. [ 245.294380][ T9198] loop2: detected capacity change from 0 to 8192 [ 245.295170][ T9194] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 245.300911][ T9191] overlayfs: upper fs does not support tmpfile. [pid 9198] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9198] close(3) = 0 [pid 9198] mkdir("./file0", 0777) = 0 [pid 9190] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9190] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9198] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9191] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9190] <... futex resumed>) = 0 [pid 9191] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9191] <... futex resumed>) = 0 [pid 9191] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9190] <... mmap resumed>) = 0x7f38d9b57000 [pid 9190] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [ 245.310623][ T9195] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 245.316689][ T9191] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 245.337069][ T9191] overlayfs: failed to resolve './file0': -2 [ 245.343351][ T9194] REISERFS (device loop1): using ordered data mode [ 245.348667][ T9195] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 245.350398][ T9194] reiserfs: using flush barriers [ 245.365909][ T9195] REISERFS (device loop5): using ordered data mode [pid 9190] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9202], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9202 [pid 9190] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9190] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9202 attached [pid 9202] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9202] mkdir(".", 0777) = -1 EEXIST (File exists) [ 245.367147][ T9198] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 245.372613][ T9194] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 245.387483][ T9198] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 245.401971][ T9195] reiserfs: using flush barriers [ 245.410820][ T9198] REISERFS (device loop2): using ordered data mode [pid 9202] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9202] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9202] chdir(".") = 0 [pid 9202] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9190] <... futex resumed>) = 0 [pid 9190] exit_group(0 [pid 9191] <... futex resumed>) = ? [pid 9190] <... exit_group resumed>) = ? [pid 9191] +++ exited with 0 +++ [pid 9202] <... futex resumed>) = ? [pid 9202] +++ exited with 0 +++ [pid 9190] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9190, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./237", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./237", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./237/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./237/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./237/binderfs") = 0 [ 245.422576][ T9198] reiserfs: using flush barriers [ 245.428748][ T9198] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 245.433314][ T9195] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 245.445635][ T9198] REISERFS (device loop2): checking transaction log (loop2) [ 245.468789][ T9194] REISERFS (device loop1): checking transaction log (loop1) [ 245.476596][ T9195] REISERFS (device loop5): checking transaction log (loop5) [ 245.477243][ T9198] REISERFS (device loop2): Using r5 hash to sort names [ 245.492256][ T9195] REISERFS (device loop5): Using r5 hash to sort names [ 245.500294][ T9194] REISERFS (device loop1): Using r5 hash to sort names [ 245.508316][ T9195] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 4998] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 4998] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./237/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./237/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./237/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./237") = 0 [pid 4998] mkdir("./238", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 9198] <... mount resumed>) = 0 [pid 9198] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 9198] <... openat resumed>) = 3 [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9198] chdir("./file0") = 0 [pid 9198] ioctl(4, LOOP_CLR_FD) = 0 [pid 9198] close(4) = 0 [pid 9195] <... mount resumed>) = 0 [pid 9198] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9196] <... futex resumed>) = 0 [pid 9196] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9198] mkdir("./file1", 000 [pid 9195] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9196] <... futex resumed>) = 0 [ 245.516241][ T9198] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 245.532896][ T9194] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 245.534242][ T9198] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 245.559408][ T9195] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9198] <... mkdir resumed>) = 0 [pid 9196] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9195] <... openat resumed>) = 3 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9203 [pid 9198] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9196] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9195] chdir("./file0" [pid 9198] <... futex resumed>) = 0 [pid 9196] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9195] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 9203 attached [pid 9203] set_robust_list(0x555556b565e0, 24 [pid 9198] mkdir("./bus", 000 [pid 9196] <... futex resumed>) = 0 [pid 9195] ioctl(4, LOOP_CLR_FD [pid 9198] <... mkdir resumed>) = 0 [pid 9196] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9195] <... ioctl resumed>) = 0 [pid 9198] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9203] <... set_robust_list resumed>) = 0 [pid 9196] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9195] close(4 [pid 9198] <... futex resumed>) = 0 [pid 9196] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9195] <... close resumed>) = 0 [pid 9198] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9196] <... futex resumed>) = 0 [pid 9195] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9203] chdir("./238" [pid 9196] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9195] <... futex resumed>) = 1 [pid 9193] <... futex resumed>) = 0 [pid 9195] mkdir("./file1", 000 [pid 9193] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9203] <... chdir resumed>) = 0 [pid 9203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9203] setpgid(0, 0) = 0 [pid 9203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9203] write(3, "1000", 4) = 4 [pid 9203] close(3) = 0 [pid 9203] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9195] <... mkdir resumed>) = 0 [pid 9193] <... futex resumed>) = 0 [pid 9203] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9195] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9194] <... mount resumed>) = 0 [pid 9193] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9194] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9203] <... mmap resumed>) = 0x7f38e1b78000 [pid 9194] <... openat resumed>) = 3 [pid 9203] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9194] chdir("./file0" [pid 9203] <... mprotect resumed>) = 0 [pid 9194] <... chdir resumed>) = 0 [pid 9203] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9194] ioctl(4, LOOP_CLR_FD) = 0 [pid 9203] <... clone resumed>, parent_tid=[9204], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9204 [pid 9194] close(4 [pid 9203] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9194] <... close resumed>) = 0 [pid 9203] <... futex resumed>) = 0 [pid 9194] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9203] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9194] <... futex resumed>) = 1 [pid 9192] <... futex resumed>) = 0 [pid 9194] mkdir("./file1", 000 [pid 9192] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9194] <... mkdir resumed>) = 0 [pid 9195] <... futex resumed>) = 0 [pid 9193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9192] <... futex resumed>) = 0 [pid 9195] mkdir("./bus", 000 [pid 9194] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9193] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9192] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9195] <... mkdir resumed>) = 0 [pid 9194] <... futex resumed>) = 0 [pid 9193] <... futex resumed>) = 0 [pid 9192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9195] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9194] mkdir("./bus", 000 [pid 9193] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9192] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9195] <... futex resumed>) = 0 [pid 9194] <... mkdir resumed>) = 0 [pid 9193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9192] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9204 attached [ 245.574428][ T9194] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 245.589765][ T9198] overlayfs: upper fs needs to support d_type. [ 245.606597][ T9198] overlayfs: upper fs does not support tmpfile. [pid 9195] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9194] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9193] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9192] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9204] set_robust_list(0x7f38e1b989e0, 24 [pid 9195] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9194] <... futex resumed>) = 0 [pid 9193] <... futex resumed>) = 0 [pid 9192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9204] <... set_robust_list resumed>) = 0 [pid 9195] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9194] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9193] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9192] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9204] memfd_create("syzkaller", 0 [pid 9194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9192] <... futex resumed>) = 0 [pid 9204] <... memfd_create resumed>) = 3 [pid 9194] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9192] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9196] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9196] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9196] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9196] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9205], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9205 [pid 9196] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9196] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9205 attached [pid 9205] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9205] mkdir(".", 0777) = -1 EEXIST (File exists) [ 245.620023][ T9195] overlayfs: upper fs needs to support d_type. [ 245.626630][ T9194] overlayfs: upper fs needs to support d_type. [ 245.632904][ T9194] overlayfs: upper fs does not support tmpfile. [ 245.636118][ T9195] overlayfs: upper fs does not support tmpfile. [ 245.647826][ T9198] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 245.660899][ T9198] overlayfs: failed to resolve './file0': -2 [ 245.668050][ T9195] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9205] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9192] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9192] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9192] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9192] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9206], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9206 [pid 9192] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9192] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9206 attached [pid 9193] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9206] set_robust_list(0x7f38d9b779e0, 24 [pid 9193] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9205] <... mount resumed>) = 0 [pid 9205] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9205] chdir(".") = 0 [pid 9205] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9206] <... set_robust_list resumed>) = 0 [pid 9205] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9193] <... futex resumed>) = 0 [pid 9196] <... futex resumed>) = 0 [pid 9204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9198] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9206] mkdir(".", 0777 [pid 9193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9198] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9206] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9206] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9198] <... futex resumed>) = 0 [pid 9193] <... mmap resumed>) = 0x7f38d9b57000 [pid 9195] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9198] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9195] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9193] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9196] exit_group(0 [pid 9205] <... futex resumed>) = ? [pid 9196] <... exit_group resumed>) = ? [pid 9193] <... mprotect resumed>) = 0 [pid 9205] +++ exited with 0 +++ [pid 9198] <... futex resumed>) = ? [pid 9195] <... futex resumed>) = 0 [pid 9198] +++ exited with 0 +++ [pid 9196] +++ exited with 0 +++ [pid 9193] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9196, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 9195] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9193] <... clone resumed>, parent_tid=[9207], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9207 [pid 5000] umount2("./238", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./238", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9193] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... openat resumed>) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9193] <... futex resumed>) = 0 [pid 5000] umount2("./238/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9193] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./238/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./238/binderfs") = 0 [pid 5000] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9206] <... mount resumed>) = 0 [pid 9206] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9206] chdir(".") = 0 [pid 9206] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9192] <... futex resumed>) = 0 [pid 9206] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9207 attached [pid 9207] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9207] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9194] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9207] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9194] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9192] exit_group(0 [pid 9206] <... futex resumed>) = ? [pid 9192] <... exit_group resumed>) = ? [pid 9206] +++ exited with 0 +++ [pid 9194] +++ exited with 0 +++ [pid 9192] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9192, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9207] <... mount resumed>) = 0 [pid 9207] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] umount2("./237", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9207] <... openat resumed>) = 4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9207] chdir("." [pid 4999] openat(AT_FDCWD, "./237", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9207] <... chdir resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 9207] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... umount2 resumed>) = 0 [pid 4999] fstat(3, [pid 9207] <... futex resumed>) = 1 [pid 9193] <... futex resumed>) = 0 [pid 5000] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9207] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9193] exit_group(0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9207] <... futex resumed>) = ? [pid 9195] <... futex resumed>) = ? [pid 9193] <... exit_group resumed>) = ? [pid 5000] lstat("./238/file0", [pid 4999] getdents64(3, [pid 9207] +++ exited with 0 +++ [pid 9195] +++ exited with 0 +++ [pid 9193] +++ exited with 0 +++ [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9193, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5000] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./237/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] openat(AT_FDCWD, "./238/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 245.682563][ T9194] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 245.685796][ T9195] overlayfs: failed to resolve './file0': -2 [ 245.716789][ T9194] overlayfs: failed to resolve './file0': -2 [pid 5003] umount2("./237", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] fstat(4, [pid 4999] lstat("./237/binderfs", [pid 5003] openat(AT_FDCWD, "./237", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] <... openat resumed>) = 3 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] unlink("./237/binderfs" [pid 5003] fstat(3, [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] rmdir("./238/file0" [pid 5003] getdents64(3, [pid 5000] <... rmdir resumed>) = 0 [pid 4999] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] umount2("./237/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] close(3 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... close resumed>) = 0 [pid 5003] lstat("./237/binderfs", [pid 5000] rmdir("./238" [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./239", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5003] unlink("./237/binderfs" [pid 5000] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 5003] <... unlink resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9208 ./strace-static-x86_64: Process 9208 attached [pid 9208] set_robust_list(0x555556b565e0, 24) = 0 [pid 9208] chdir("./239") = 0 [pid 9208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9208] setpgid(0, 0) = 0 [pid 9208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9208] write(3, "1000", 4) = 4 [pid 9208] close(3) = 0 [pid 9208] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9208] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9208] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9208] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9209], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9209 [pid 9208] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9208] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9209 attached [pid 9209] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9209] memfd_create("syzkaller", 0) = 3 [pid 9209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9204] <... write resumed>) = 4194304 [pid 9204] munmap(0x7f38d9778000, 4194304) = 0 [pid 9204] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9204] ioctl(4, LOOP_SET_FD, 3 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./237/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./237/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./237/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9204] <... ioctl resumed>) = 0 [pid 5003] rmdir("./237") = 0 [pid 4999] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9204] close(3 [pid 5003] mkdir("./238", 0777 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./237/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 4999] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9204] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./237/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9204] mkdir("./file0", 0777 [pid 5003] <... openat resumed>) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] close(3 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 9204] <... mkdir resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9204] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] getdents64(4, [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9210 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./237/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./237") = 0 [pid 4999] mkdir("./238", 0777) = 0 [ 245.841999][ T9204] loop0: detected capacity change from 0 to 8192 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 9210 attached [pid 9210] set_robust_list(0x555556b565e0, 24) = 0 [pid 9210] chdir("./238") = 0 [pid 9210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9210] setpgid(0, 0) = 0 [pid 9210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9210] write(3, "1000", 4) = 4 [pid 9210] close(3) = 0 [pid 9210] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9210] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9210] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9210] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9212], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9212 [pid 9210] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9210] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9212 attached [pid 9212] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9212] memfd_create("syzkaller", 0) = 3 [pid 9212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 4999] <... openat resumed>) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9213 ./strace-static-x86_64: Process 9213 attached [pid 9213] set_robust_list(0x555556b565e0, 24) = 0 [pid 9213] chdir("./238") = 0 [pid 9213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9213] setpgid(0, 0) = 0 [pid 9213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9213] write(3, "1000", 4) = 4 [pid 9213] close(3) = 0 [pid 9213] symlink("/dev/binderfs", "./binderfs" [pid 9209] <... write resumed>) = 4194304 [pid 9213] <... symlink resumed>) = 0 [pid 9213] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9213] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9213] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9213] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9214], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9214 [pid 9213] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9213] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9212] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9209] munmap(0x7f38d9778000, 4194304./strace-static-x86_64: Process 9214 attached ) = 0 [ 245.884172][ T9204] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 245.923530][ T9204] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9214] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9209] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9214] memfd_create("syzkaller", 0) = 3 [pid 9214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9209] <... openat resumed>) = 4 [pid 9209] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9212] <... write resumed>) = 4194304 [pid 9209] close(3 [pid 9212] munmap(0x7f38d9778000, 4194304 [pid 9209] <... close resumed>) = 0 [pid 9212] <... munmap resumed>) = 0 [pid 9209] mkdir("./file0", 0777) = 0 [pid 9212] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9209] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9212] <... openat resumed>) = 4 [ 245.936546][ T9204] REISERFS (device loop0): using ordered data mode [ 245.947131][ T9209] loop2: detected capacity change from 0 to 8192 [ 245.960424][ T9204] reiserfs: using flush barriers [ 245.970501][ T9212] loop5: detected capacity change from 0 to 8192 [pid 9212] ioctl(4, LOOP_SET_FD, 3 [pid 9214] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 9214] munmap(0x7f38d9778000, 4194304) = 0 [pid 9214] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9214] ioctl(4, LOOP_SET_FD, 3 [pid 9212] <... ioctl resumed>) = 0 [pid 9214] <... ioctl resumed>) = 0 [pid 9214] close(3) = 0 [pid 9214] mkdir("./file0", 0777) = 0 [pid 9214] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9212] close(3) = 0 [pid 9212] mkdir("./file0", 0777) = 0 [ 245.977796][ T9209] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 245.992339][ T9204] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 246.007255][ T9214] loop1: detected capacity change from 0 to 8192 [ 246.008884][ T9209] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 246.017085][ T9204] REISERFS (device loop0): checking transaction log (loop0) [ 246.025059][ T9209] REISERFS (device loop2): using ordered data mode [ 246.035392][ T9214] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 246.038076][ T9209] reiserfs: using flush barriers [ 246.050832][ T9214] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 246.050893][ T9214] REISERFS (device loop1): using ordered data mode [ 246.056601][ T9212] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 246.065039][ T9214] reiserfs: using flush barriers [ 246.086026][ T9204] REISERFS (device loop0): Using r5 hash to sort names [ 246.090165][ T9212] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 246.096663][ T9209] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 246.105656][ T9214] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 246.137949][ T9204] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 246.138055][ T9212] REISERFS (device loop5): using ordered data mode [ 246.157192][ T9204] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 246.157377][ T9212] reiserfs: using flush barriers [ 246.166895][ T9209] REISERFS (device loop2): checking transaction log (loop2) [ 246.171484][ T9214] REISERFS (device loop1): checking transaction log (loop1) [pid 9212] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9204] <... mount resumed>) = 0 [ 246.187267][ T9209] REISERFS (device loop2): Using r5 hash to sort names [ 246.187312][ T9212] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 246.194575][ T9212] REISERFS (device loop5): checking transaction log (loop5) [ 246.211005][ T9209] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 246.218809][ T9214] REISERFS (device loop1): Using r5 hash to sort names [pid 9204] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9209] <... mount resumed>) = 0 [pid 9204] <... openat resumed>) = 3 [pid 9204] chdir("./file0") = 0 [pid 9204] ioctl(4, LOOP_CLR_FD) = 0 [pid 9204] close(4) = 0 [pid 9204] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9203] <... futex resumed>) = 0 [pid 9204] mkdir("./file1", 000 [pid 9203] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9204] <... mkdir resumed>) = 0 [pid 9203] <... futex resumed>) = 0 [pid 9204] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9203] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9204] <... futex resumed>) = 0 [pid 9203] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9204] mkdir("./bus", 000 [pid 9203] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9204] <... mkdir resumed>) = 0 [pid 9203] <... futex resumed>) = 0 [pid 9204] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9203] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9204] <... futex resumed>) = 0 [pid 9203] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9204] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9203] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9214] <... mount resumed>) = 0 [pid 9209] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9203] <... futex resumed>) = 0 [pid 9209] <... openat resumed>) = 3 [pid 9214] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9209] chdir("./file0" [pid 9214] <... openat resumed>) = 3 [pid 9209] <... chdir resumed>) = 0 [pid 9209] ioctl(4, LOOP_CLR_FD) = 0 [pid 9214] chdir("./file0") = 0 [pid 9209] close(4) = 0 [pid 9203] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9214] ioctl(4, LOOP_CLR_FD) = 0 [pid 9209] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9208] <... futex resumed>) = 0 [pid 9208] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9208] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9214] close(4 [pid 9209] <... futex resumed>) = 1 [pid 9214] <... close resumed>) = 0 [pid 9209] mkdir("./file1", 000) = 0 [pid 9214] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9213] <... futex resumed>) = 0 [pid 9213] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9213] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9214] <... futex resumed>) = 1 [pid 9214] mkdir("./file1", 000) = 0 [ 246.230905][ T9209] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 246.238267][ T9214] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 246.260461][ T9214] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 246.260663][ T9204] overlayfs: upper fs needs to support d_type. [ 246.277176][ T9204] overlayfs: upper fs does not support tmpfile. [pid 9209] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9208] <... futex resumed>) = 0 [pid 9208] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9208] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9209] <... futex resumed>) = 1 [pid 9214] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9213] <... futex resumed>) = 0 [pid 9209] mkdir("./bus", 000 [pid 9214] mkdir("./bus", 000 [pid 9213] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9214] <... mkdir resumed>) = 0 [pid 9213] <... futex resumed>) = 0 [pid 9209] <... mkdir resumed>) = 0 [pid 9214] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9213] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9214] <... futex resumed>) = 0 [pid 9213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9209] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9214] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9213] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9209] <... futex resumed>) = 1 [pid 9208] <... futex resumed>) = 0 [pid 9213] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9209] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9208] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9208] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9203] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9203] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9203] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9203] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9218], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9218 [pid 9203] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 246.284439][ T9212] REISERFS (device loop5): Using r5 hash to sort names [ 246.294263][ T9204] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 246.298096][ T9214] overlayfs: upper fs needs to support d_type. [ 246.301881][ T9212] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 246.310032][ T9209] overlayfs: upper fs needs to support d_type. [ 246.322114][ T9204] overlayfs: failed to resolve './file0': -2 [pid 9203] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9212] <... mount resumed>) = 0 ./strace-static-x86_64: Process 9218 attached [pid 9218] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9218] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9218] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9213] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9213] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9212] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9213] <... futex resumed>) = 0 [pid 9213] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9213] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9213] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9212] <... openat resumed>) = 3 [pid 9204] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9213] <... clone resumed>, parent_tid=[9219], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9219 [pid 9213] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9213] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9219 attached [pid 9212] chdir("./file0" [pid 9204] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9219] set_robust_list(0x7f38d9b779e0, 24 [pid 9212] <... chdir resumed>) = 0 [pid 9204] <... futex resumed>) = 0 [pid 9219] <... set_robust_list resumed>) = 0 [pid 9212] ioctl(4, LOOP_CLR_FD [pid 9208] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9204] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9208] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9208] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9208] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9220], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9220 [pid 9208] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 246.332959][ T9212] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 246.346209][ T9214] overlayfs: upper fs does not support tmpfile. [ 246.349462][ T9209] overlayfs: upper fs does not support tmpfile. [ 246.362486][ T9209] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 246.370811][ T9209] overlayfs: failed to resolve './file0': -2 [ 246.382297][ T9214] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9208] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9219] mkdir(".", 0777 [pid 9212] <... ioctl resumed>) = 0 [pid 9219] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9212] close(4 [pid 9219] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9212] <... close resumed>) = 0 ./strace-static-x86_64: Process 9220 attached [pid 9219] <... mount resumed>) = 0 [pid 9212] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9220] set_robust_list(0x7f38d9b779e0, 24 [pid 9219] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9212] <... futex resumed>) = 1 [pid 9210] <... futex resumed>) = 0 [pid 9220] <... set_robust_list resumed>) = 0 [pid 9219] chdir("." [pid 9212] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9210] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9209] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9219] <... chdir resumed>) = 0 [pid 9212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9210] <... futex resumed>) = 0 [pid 9219] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9212] mkdir("./file1", 000 [pid 9210] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9219] <... futex resumed>) = 1 [pid 9213] <... futex resumed>) = 0 [pid 9212] <... mkdir resumed>) = 0 [pid 9219] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9212] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9210] <... futex resumed>) = 0 [pid 9220] mkdir(".", 0777 [pid 9212] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9210] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9209] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9220] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9218] <... mount resumed>) = 0 [pid 9214] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9210] <... futex resumed>) = 0 [pid 9209] <... futex resumed>) = 0 [pid 9220] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9218] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9214] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9212] mkdir("./bus", 000 [pid 9210] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9209] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9218] <... openat resumed>) = 4 [pid 9214] <... futex resumed>) = 0 [pid 9212] <... mkdir resumed>) = 0 [pid 9220] <... mount resumed>) = 0 [pid 9218] chdir("." [pid 9214] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9213] exit_group(0 [pid 9212] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9220] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9219] <... futex resumed>) = ? [pid 9218] <... chdir resumed>) = 0 [pid 9214] <... futex resumed>) = ? [pid 9213] <... exit_group resumed>) = ? [pid 9212] <... futex resumed>) = 1 [pid 9210] <... futex resumed>) = 0 [pid 9220] <... openat resumed>) = 4 [pid 9219] +++ exited with 0 +++ [pid 9218] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9214] +++ exited with 0 +++ [pid 9213] +++ exited with 0 +++ [pid 9212] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9210] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9220] chdir("." [pid 9218] <... futex resumed>) = 1 [pid 9212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9210] <... futex resumed>) = 0 [pid 9203] <... futex resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9213, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 9220] <... chdir resumed>) = 0 [pid 9218] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9212] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9210] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9203] exit_group(0 [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 9220] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9218] <... futex resumed>) = ? [pid 9204] <... futex resumed>) = ? [pid 9203] <... exit_group resumed>) = ? [pid 9220] <... futex resumed>) = 1 [pid 9218] +++ exited with 0 +++ [pid 9208] <... futex resumed>) = 0 [pid 9204] +++ exited with 0 +++ [pid 9203] +++ exited with 0 +++ [pid 4999] <... restart_syscall resumed>) = 0 [pid 9220] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9208] exit_group(0 [pid 9220] <... futex resumed>) = ? [pid 9209] <... futex resumed>) = ? [pid 9208] <... exit_group resumed>) = ? [pid 9220] +++ exited with 0 +++ [pid 9209] +++ exited with 0 +++ [pid 4999] umount2("./238", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9203, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 4999] openat(AT_FDCWD, "./238", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... restart_syscall resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./238", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(3, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] openat(AT_FDCWD, "./238", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] umount2("./238/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] fstat(3, [pid 4999] lstat("./238/binderfs", [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] getdents64(3, [pid 4999] unlink("./238/binderfs" [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... unlink resumed>) = 0 [pid 4998] umount2("./238/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./238/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./238/binderfs") = 0 [ 246.393087][ T9214] overlayfs: failed to resolve './file0': -2 [ 246.422283][ T9212] overlayfs: upper fs needs to support d_type. [ 246.432678][ T9212] overlayfs: upper fs does not support tmpfile. [pid 4998] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9208] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9208, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5000] umount2("./239", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./239", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9212] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] umount2("./239/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./239/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./239/binderfs" [pid 9212] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... unlink resumed>) = 0 [pid 9212] <... futex resumed>) = 1 [pid 9210] <... futex resumed>) = 0 [pid 5000] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9212] mkdir(".", 0777 [pid 9210] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9212] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9210] <... futex resumed>) = 0 [pid 9212] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9210] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9212] <... mount resumed>) = 0 [pid 9212] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9212] chdir(".") = 0 [pid 9212] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9210] <... futex resumed>) = 0 [pid 9212] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9210] exit_group(0 [pid 9212] <... futex resumed>) = ? [pid 9210] <... exit_group resumed>) = ? [pid 9212] +++ exited with 0 +++ [pid 9210] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9210, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5003] umount2("./238", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./238", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./238/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./238/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./238/binderfs") = 0 [ 246.439558][ T9212] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 246.447887][ T9212] overlayfs: failed to resolve './file0': -2 [pid 5003] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./239/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 5000] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./239/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4999] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./239/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./239") = 0 [pid 5000] mkdir("./240", 0777) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] lstat("./238/file0", [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] lstat("./238/file0", [pid 4999] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] openat(AT_FDCWD, "./238/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... openat resumed>) = 4 [pid 4998] openat(AT_FDCWD, "./238/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] fstat(4, [pid 4998] <... openat resumed>) = 4 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] fstat(4, [pid 4999] getdents64(4, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, [pid 4999] getdents64(4, [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(4, [pid 4999] close(4 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] <... close resumed>) = 0 [pid 4998] close(4 [pid 4999] rmdir("./238/file0" [pid 4998] <... close resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] <... rmdir resumed>) = 0 [pid 4998] rmdir("./238/file0" [pid 4999] getdents64(3, [pid 5000] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] <... rmdir resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(3, [pid 4999] close(3 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] <... close resumed>) = 0 [pid 4998] close(3 [pid 4999] rmdir("./238" [pid 4998] <... close resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4998] rmdir("./238" [pid 4999] mkdir("./239", 0777 [pid 5000] close(3 [pid 5003] <... umount2 resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4998] mkdir("./239", 0777 [pid 5003] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 3 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... mkdir resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5003] lstat("./238/file0", [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... openat resumed>) = 3 [pid 4999] close(3 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... close resumed>) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9221 [pid 4998] close(3) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9222 [pid 5003] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9223 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./238/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 9222 attached [pid 5003] close(4) = 0 [pid 5003] rmdir("./238/file0" [pid 9222] set_robust_list(0x555556b565e0, 24 [pid 5003] <... rmdir resumed>) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3 [pid 9222] <... set_robust_list resumed>) = 0 [pid 9222] chdir("./239"./strace-static-x86_64: Process 9221 attached [pid 9221] set_robust_list(0x555556b565e0, 24 [pid 9222] <... chdir resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5003] rmdir("./238"./strace-static-x86_64: Process 9223 attached [pid 9222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9221] <... set_robust_list resumed>) = 0 [pid 9223] set_robust_list(0x555556b565e0, 24 [pid 5003] <... rmdir resumed>) = 0 [pid 9222] setpgid(0, 0 [pid 5003] mkdir("./239", 0777 [pid 9222] <... setpgid resumed>) = 0 [pid 9221] chdir("./240" [pid 9223] <... set_robust_list resumed>) = 0 [pid 9222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9221] <... chdir resumed>) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 9223] chdir("./239" [pid 9222] <... openat resumed>) = 3 [pid 9221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9223] <... chdir resumed>) = 0 [pid 9222] write(3, "1000", 4 [pid 9221] <... prctl resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 9223] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9222] <... write resumed>) = 4 [pid 9221] setpgid(0, 0 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 9223] <... prctl resumed>) = 0 [pid 9222] close(3 [pid 9221] <... setpgid resumed>) = 0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9223] setpgid(0, 0 [pid 9222] <... close resumed>) = 0 [pid 9221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] close(3 [pid 9223] <... setpgid resumed>) = 0 [pid 9222] symlink("/dev/binderfs", "./binderfs" [pid 9221] <... openat resumed>) = 3 [pid 9223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9222] <... symlink resumed>) = 0 [pid 9221] write(3, "1000", 4 [pid 5003] <... close resumed>) = 0 [pid 9223] <... openat resumed>) = 3 [pid 9222] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9221] <... write resumed>) = 4 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9223] write(3, "1000", 4 [pid 9222] <... futex resumed>) = 0 [pid 9221] close(3 [pid 9223] <... write resumed>) = 4 [pid 9222] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9221] <... close resumed>) = 0 [pid 9223] close(3 [pid 9222] <... mmap resumed>) = 0x7f38e1b78000 [pid 9221] symlink("/dev/binderfs", "./binderfs" [pid 9223] <... close resumed>) = 0 [pid 9222] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9221] <... symlink resumed>) = 0 [pid 9223] symlink("/dev/binderfs", "./binderfs" [pid 9222] <... mprotect resumed>) = 0 [pid 9221] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9224 [pid 9223] <... symlink resumed>) = 0 [pid 9222] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9221] <... futex resumed>) = 0 [pid 9223] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9223] <... futex resumed>) = 0 [pid 9222] <... clone resumed>, parent_tid=[9225], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9225 [pid 9221] <... mmap resumed>) = 0x7f38e1b78000 [pid 9223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9222] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9221] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9223] <... mmap resumed>) = 0x7f38e1b78000 [pid 9222] <... futex resumed>) = 0 [pid 9221] <... mprotect resumed>) = 0 [pid 9223] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9222] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9221] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9223] <... mprotect resumed>) = 0 [pid 9223] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9221] <... clone resumed>, parent_tid=[9226], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9226 [pid 9221] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9223] <... clone resumed>, parent_tid=[9227], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9227 [pid 9221] <... futex resumed>) = 0 [pid 9223] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9221] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9223] <... futex resumed>) = 0 [pid 9223] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9224 attached [pid 9224] set_robust_list(0x555556b565e0, 24) = 0 [pid 9224] chdir("./239") = 0 ./strace-static-x86_64: Process 9225 attached [pid 9224] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9225] set_robust_list(0x7f38e1b989e0, 24 [pid 9224] <... prctl resumed>) = 0 [pid 9225] <... set_robust_list resumed>) = 0 [pid 9224] setpgid(0, 0 [pid 9225] memfd_create("syzkaller", 0 [pid 9224] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 9226 attached [pid 9225] <... memfd_create resumed>) = 3 [pid 9225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9226] set_robust_list(0x7f38e1b989e0, 24 [pid 9225] <... mmap resumed>) = 0x7f38d9778000 [pid 9224] <... openat resumed>) = 3 ./strace-static-x86_64: Process 9227 attached [pid 9226] <... set_robust_list resumed>) = 0 [pid 9224] write(3, "1000", 4 [pid 9227] set_robust_list(0x7f38e1b989e0, 24 [pid 9224] <... write resumed>) = 4 [pid 9227] <... set_robust_list resumed>) = 0 [pid 9224] close(3 [pid 9227] memfd_create("syzkaller", 0 [pid 9224] <... close resumed>) = 0 [pid 9226] memfd_create("syzkaller", 0 [pid 9227] <... memfd_create resumed>) = 3 [pid 9224] symlink("/dev/binderfs", "./binderfs" [pid 9227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9224] <... symlink resumed>) = 0 [pid 9227] <... mmap resumed>) = 0x7f38d9778000 [pid 9226] <... memfd_create resumed>) = 3 [pid 9224] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9224] <... futex resumed>) = 0 [pid 9224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9224] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9224] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9226] <... mmap resumed>) = 0x7f38d9778000 [pid 9224] <... clone resumed>, parent_tid=[9228], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9228 [pid 9224] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9224] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9228 attached [pid 9228] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9228] memfd_create("syzkaller", 0) = 3 [pid 9228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9226] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9228] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9226] <... write resumed>) = 4194304 [pid 9226] munmap(0x7f38d9778000, 4194304) = 0 [pid 9226] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9226] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9226] close(3) = 0 [pid 9226] mkdir("./file0", 0777) = 0 [pid 9226] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9228] <... write resumed>) = 4194304 [pid 9228] munmap(0x7f38d9778000, 4194304 [pid 9225] <... write resumed>) = 4194304 [pid 9225] munmap(0x7f38d9778000, 4194304) = 0 [pid 9225] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9225] ioctl(4, LOOP_SET_FD, 3 [pid 9228] <... munmap resumed>) = 0 [pid 9227] <... write resumed>) = 4194304 [pid 9225] <... ioctl resumed>) = 0 [pid 9225] close(3) = 0 [pid 9225] mkdir("./file0", 0777) = 0 [ 246.706711][ T9226] loop2: detected capacity change from 0 to 8192 [ 246.731613][ T9225] loop1: detected capacity change from 0 to 8192 [ 246.732643][ T9226] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9225] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9228] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9227] munmap(0x7f38d9778000, 4194304 [pid 9228] <... openat resumed>) = 4 [pid 9227] <... munmap resumed>) = 0 [pid 9228] ioctl(4, LOOP_SET_FD, 3 [ 246.752327][ T9225] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 246.752508][ T9226] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 246.766003][ T9225] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 246.776839][ T9226] REISERFS (device loop2): using ordered data mode [ 246.785225][ T9225] REISERFS (device loop1): using ordered data mode [ 246.791905][ T9226] reiserfs: using flush barriers [pid 9227] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9228] <... ioctl resumed>) = 0 [pid 9227] <... openat resumed>) = 4 [pid 9228] close(3) = 0 [pid 9228] mkdir("./file0", 0777) = 0 [pid 9228] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 246.799097][ T9225] reiserfs: using flush barriers [ 246.803267][ T9228] loop5: detected capacity change from 0 to 8192 [ 246.809596][ T9225] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 246.822475][ T9227] loop0: detected capacity change from 0 to 8192 [ 246.831111][ T9225] REISERFS (device loop1): checking transaction log (loop1) [pid 9227] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9227] close(3) = 0 [pid 9227] mkdir("./file0", 0777) = 0 [ 246.837295][ T9226] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 246.845183][ T9225] REISERFS (device loop1): Using r5 hash to sort names [ 246.867228][ T9226] REISERFS (device loop2): checking transaction log (loop2) [ 246.874895][ T9225] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 246.875202][ T9228] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9227] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9225] <... mount resumed>) = 0 [pid 9225] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9225] chdir("./file0") = 0 [pid 9225] ioctl(4, LOOP_CLR_FD) = 0 [ 246.887613][ T9225] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 246.909684][ T9227] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 246.910017][ T9228] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 246.924137][ T9226] REISERFS (device loop2): Using r5 hash to sort names [ 246.931869][ T9228] REISERFS (device loop5): using ordered data mode [ 246.945342][ T9228] reiserfs: using flush barriers [pid 9225] close(4) = 0 [pid 9225] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9222] <... futex resumed>) = 0 [pid 9222] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9222] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9225] <... futex resumed>) = 1 [pid 9225] mkdir("./file1", 000) = 0 [pid 9225] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9222] <... futex resumed>) = 0 [pid 9222] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9222] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9225] <... futex resumed>) = 1 [pid 9225] mkdir("./bus", 000) = 0 [pid 9225] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9222] <... futex resumed>) = 0 [pid 9225] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9222] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9222] <... futex resumed>) = 0 [pid 9225] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 246.951002][ T9227] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 246.960170][ T9228] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 246.976527][ T9228] REISERFS (device loop5): checking transaction log (loop5) [ 246.977451][ T9227] REISERFS (device loop0): using ordered data mode [ 246.984062][ T9226] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 247.003566][ T9228] REISERFS (device loop5): Using r5 hash to sort names [ 247.004969][ T9227] reiserfs: using flush barriers [ 247.011265][ T9228] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 247.016490][ T9225] overlayfs: upper fs needs to support d_type. [ 247.035191][ T9226] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9222] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9226] <... mount resumed>) = 0 [pid 9222] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9226] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 247.036681][ T9227] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 247.044596][ T9228] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 247.062572][ T9227] REISERFS (device loop0): checking transaction log (loop0) [ 247.070279][ T9225] overlayfs: upper fs does not support tmpfile. [ 247.079468][ T9227] REISERFS (device loop0): Using r5 hash to sort names [ 247.083999][ T9225] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9222] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9226] <... openat resumed>) = 3 [pid 9222] <... futex resumed>) = 0 [pid 9228] <... mount resumed>) = 0 [pid 9226] chdir("./file0" [pid 9222] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9228] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9222] <... mmap resumed>) = 0x7f38d9b57000 [pid 9222] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9222] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9233], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9233 [pid 9222] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9222] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9233 attached [pid 9228] <... openat resumed>) = 3 [pid 9226] <... chdir resumed>) = 0 [pid 9228] chdir("./file0" [pid 9226] ioctl(4, LOOP_CLR_FD [pid 9228] <... chdir resumed>) = 0 [pid 9226] <... ioctl resumed>) = 0 [pid 9228] ioctl(4, LOOP_CLR_FD [pid 9226] close(4 [pid 9228] <... ioctl resumed>) = 0 [pid 9226] <... close resumed>) = 0 [pid 9228] close(4 [pid 9226] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9228] <... close resumed>) = 0 [pid 9226] <... futex resumed>) = 1 [pid 9221] <... futex resumed>) = 0 [pid 9228] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9226] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9221] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9228] <... futex resumed>) = 1 [pid 9226] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9224] <... futex resumed>) = 0 [pid 9221] <... futex resumed>) = 0 [pid 9228] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9226] mkdir("./file1", 000 [pid 9224] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9221] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9228] mkdir("./file1", 000 [pid 9226] <... mkdir resumed>) = 0 [pid 9224] <... futex resumed>) = 0 [pid 9228] <... mkdir resumed>) = 0 [pid 9226] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9224] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9228] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9226] <... futex resumed>) = 1 [pid 9224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9221] <... futex resumed>) = 0 [pid 9227] <... mount resumed>) = 0 [pid 9227] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9226] mkdir("./bus", 000 [pid 9224] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9228] <... futex resumed>) = 0 [pid 9221] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9224] <... futex resumed>) = 0 [pid 9221] <... futex resumed>) = 0 [pid 9233] set_robust_list(0x7f38d9b779e0, 24 [pid 9228] mkdir("./bus", 000 [pid 9226] <... mkdir resumed>) = 0 [pid 9224] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9221] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9233] <... set_robust_list resumed>) = 0 [pid 9228] <... mkdir resumed>) = 0 [pid 9226] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9228] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9226] <... futex resumed>) = 1 [pid 9228] <... futex resumed>) = 1 [pid 9226] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9224] <... futex resumed>) = 0 [pid 9221] <... futex resumed>) = 0 [pid 9233] mkdir(".", 0777 [pid 9228] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9224] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9221] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9224] <... futex resumed>) = 0 [pid 9221] <... futex resumed>) = 1 [pid 9233] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9228] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9226] <... futex resumed>) = 0 [pid 9224] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9221] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9226] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9227] <... openat resumed>) = 3 [pid 9227] chdir("./file0") = 0 [pid 9227] ioctl(4, LOOP_CLR_FD) = 0 [pid 9227] close(4) = 0 [pid 9227] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9227] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9223] <... futex resumed>) = 0 [pid 9223] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9227] <... futex resumed>) = 0 [pid 9223] <... futex resumed>) = 1 [pid 9227] mkdir("./file1", 000 [pid 9223] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9227] <... mkdir resumed>) = 0 [pid 9227] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9223] <... futex resumed>) = 0 [ 247.091903][ T9227] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 247.098685][ T9225] overlayfs: failed to resolve './file0': -2 [ 247.121630][ T9227] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 247.140439][ T9228] overlayfs: upper fs needs to support d_type. [ 247.147702][ T9226] overlayfs: upper fs needs to support d_type. [pid 9227] mkdir("./bus", 000 [pid 9223] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9227] <... mkdir resumed>) = 0 [pid 9223] <... futex resumed>) = 0 [pid 9227] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9223] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9227] <... futex resumed>) = 0 [pid 9223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9227] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9223] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9233] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9225] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9223] <... futex resumed>) = 0 [pid 9223] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9225] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9225] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9224] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9221] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9224] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9221] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9224] <... futex resumed>) = 0 [pid 9221] <... futex resumed>) = 0 [pid 9224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9233] <... mount resumed>) = 0 [pid 9224] <... mmap resumed>) = 0x7f38d9b57000 [pid 9233] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9224] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9221] <... mmap resumed>) = 0x7f38d9b57000 [ 247.154065][ T9226] overlayfs: upper fs does not support tmpfile. [ 247.164147][ T9227] overlayfs: upper fs needs to support d_type. [ 247.164266][ T9228] overlayfs: upper fs does not support tmpfile. [ 247.178021][ T9226] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 247.197510][ T9226] overlayfs: failed to resolve './file0': -2 [pid 9233] <... openat resumed>) = 4 [pid 9224] <... mprotect resumed>) = 0 [pid 9221] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9233] chdir("." [pid 9226] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9224] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9223] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9221] <... mprotect resumed>) = 0 [pid 9223] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9223] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 9234 attached [pid 9233] <... chdir resumed>) = 0 [pid 9223] <... mprotect resumed>) = 0 [pid 9221] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9226] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9233] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9224] <... clone resumed>, parent_tid=[9234], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9234 [pid 9223] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9235], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9235 [pid 9223] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9223] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9235 attached [pid 9235] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9233] <... futex resumed>) = 1 [pid 9226] <... futex resumed>) = 0 [pid 9224] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9222] <... futex resumed>) = 0 [pid 9233] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9226] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9224] <... futex resumed>) = 0 [pid 9222] exit_group(0 [pid 9221] <... clone resumed>, parent_tid=[9236], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9236 [pid 9235] mkdir(".", 0777 [pid 9234] set_robust_list(0x7f38d9b779e0, 24 [pid 9233] <... futex resumed>) = ? [pid 9225] <... futex resumed>) = ? [pid 9224] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9222] <... exit_group resumed>) = ? [pid 9221] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9235] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9234] <... set_robust_list resumed>) = 0 [pid 9233] +++ exited with 0 +++ [pid 9225] +++ exited with 0 +++ [pid 9222] +++ exited with 0 +++ [pid 9221] <... futex resumed>) = 0 [pid 9235] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9234] mkdir(".", 0777 [pid 9221] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9234] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9222, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=26 /* 0.26 s */} --- ./strace-static-x86_64: Process 9236 attached [pid 9234] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9228] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 9236] set_robust_list(0x7f38d9b779e0, 24 [pid 4999] <... restart_syscall resumed>) = 0 [pid 9228] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9235] <... mount resumed>) = 0 [pid 9228] <... futex resumed>) = 0 [pid 9235] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9228] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] umount2("./239", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9236] <... set_robust_list resumed>) = 0 [pid 9234] <... mount resumed>) = 0 [pid 9236] mkdir(".", 0777 [pid 9235] <... openat resumed>) = 4 [pid 9234] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9236] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9235] chdir("." [pid 9234] <... openat resumed>) = 4 [pid 4999] openat(AT_FDCWD, "./239", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9236] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9235] <... chdir resumed>) = 0 [pid 9234] chdir("." [pid 4999] <... openat resumed>) = 3 [pid 9235] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9234] <... chdir resumed>) = 0 [pid 4999] fstat(3, [pid 9235] <... futex resumed>) = 1 [pid 9234] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9223] <... futex resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9235] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] getdents64(3, [pid 9234] <... futex resumed>) = 1 [pid 9224] <... futex resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9236] <... mount resumed>) = 0 [pid 9234] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9224] exit_group(0 [pid 4999] umount2("./239/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9236] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9234] <... futex resumed>) = ? [pid 9228] <... futex resumed>) = ? [pid 9224] <... exit_group resumed>) = ? [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9236] <... openat resumed>) = 4 [pid 9234] +++ exited with 0 +++ [pid 9228] +++ exited with 0 +++ [pid 4999] lstat("./239/binderfs", [pid 9236] chdir("." [pid 9224] +++ exited with 0 +++ [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9236] <... chdir resumed>) = 0 [pid 4999] unlink("./239/binderfs" [pid 9236] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9224, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 4999] <... unlink resumed>) = 0 [ 247.205204][ T9228] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 247.208182][ T9227] overlayfs: upper fs does not support tmpfile. [ 247.220940][ T9228] overlayfs: failed to resolve './file0': -2 [pid 4999] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9236] <... futex resumed>) = 1 [pid 9236] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] umount2("./239", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./239", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./239/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9221] <... futex resumed>) = 0 [pid 5003] lstat("./239/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9221] exit_group(0 [pid 5003] unlink("./239/binderfs") = 0 [pid 5003] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9236] <... futex resumed>) = ? [pid 9226] <... futex resumed>) = ? [pid 9221] <... exit_group resumed>) = ? [pid 9236] +++ exited with 0 +++ [pid 9226] +++ exited with 0 +++ [pid 9221] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9221, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./240", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./240", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./240/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./240/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./240/binderfs") = 0 [pid 5000] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9227] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9227] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9227] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9223] exit_group(0 [pid 9235] <... futex resumed>) = ? [pid 9223] <... exit_group resumed>) = ? [pid 9235] +++ exited with 0 +++ [pid 9227] <... futex resumed>) = ? [pid 9227] +++ exited with 0 +++ [pid 9223] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9223, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./239", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./239", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./239/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./239/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./239/binderfs") = 0 [ 247.264108][ T9227] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 247.276442][ T9227] overlayfs: failed to resolve './file0': -2 [pid 4998] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 5003] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./239/file0", [pid 4999] lstat("./239/file0", [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./239/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... openat resumed>) = 4 [pid 4999] openat(AT_FDCWD, "./239/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] fstat(4, [pid 4999] <... openat resumed>) = 4 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] fstat(4, [pid 5003] getdents64(4, [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] close(4 [pid 4999] getdents64(4, [pid 5003] <... close resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] rmdir("./239/file0" [pid 4999] close(4 [pid 5003] <... rmdir resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 5003] getdents64(3, [pid 4999] rmdir("./239/file0" [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5003] close(3 [pid 4999] getdents64(3, [pid 5003] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] rmdir("./239" [pid 5000] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] close(3 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... close resumed>) = 0 [pid 5003] mkdir("./240", 0777 [pid 5000] lstat("./240/file0", [pid 4999] rmdir("./239" [pid 5003] <... mkdir resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5000] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] mkdir("./240", 0777 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./240/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... openat resumed>) = 3 [pid 5000] <... openat resumed>) = 4 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] fstat(4, [pid 4999] <... openat resumed>) = 3 [pid 5003] close(3 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5003] <... close resumed>) = 0 [pid 5000] getdents64(4, [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] close(3 [pid 4998] <... umount2 resumed>) = 0 [pid 5000] getdents64(4, [pid 4999] <... close resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] close(4 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9237 [pid 4998] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./240/file0" [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9238 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./240" [pid 4998] lstat("./239/file0", [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./241", 0777 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./239/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9239 [pid 4998] <... openat resumed>) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 9238 attached ./strace-static-x86_64: Process 9237 attached [pid 9238] set_robust_list(0x555556b565e0, 24 [pid 4998] getdents64(4, [pid 9238] <... set_robust_list resumed>) = 0 [pid 9237] set_robust_list(0x555556b565e0, 24 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9238] chdir("./240" [pid 9237] <... set_robust_list resumed>) = 0 [pid 4998] close(4 [pid 9238] <... chdir resumed>) = 0 [pid 9237] chdir("./240" [pid 4998] <... close resumed>) = 0 [pid 9238] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9237] <... chdir resumed>) = 0 [pid 9238] <... prctl resumed>) = 0 [pid 9238] setpgid(0, 0 [pid 9237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4998] rmdir("./239/file0" [pid 9238] <... setpgid resumed>) = 0 [pid 9237] <... prctl resumed>) = 0 [pid 9238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9237] setpgid(0, 0 [pid 4998] <... rmdir resumed>) = 0 [pid 9238] <... openat resumed>) = 3 [pid 9237] <... setpgid resumed>) = 0 [pid 4998] getdents64(3, [pid 9238] write(3, "1000", 4) = 4 [pid 9237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9238] close(3 [pid 9237] <... openat resumed>) = 3 ./strace-static-x86_64: Process 9239 attached [pid 9238] <... close resumed>) = 0 [pid 9237] write(3, "1000", 4 [pid 4998] close(3 [pid 9239] set_robust_list(0x555556b565e0, 24 [pid 9238] symlink("/dev/binderfs", "./binderfs" [pid 9237] <... write resumed>) = 4 [pid 4998] <... close resumed>) = 0 [pid 9239] <... set_robust_list resumed>) = 0 [pid 9238] <... symlink resumed>) = 0 [pid 9237] close(3 [pid 4998] rmdir("./239" [pid 9239] chdir("./241" [pid 9238] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9237] <... close resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 9239] <... chdir resumed>) = 0 [pid 9238] <... futex resumed>) = 0 [pid 9237] symlink("/dev/binderfs", "./binderfs" [pid 4998] mkdir("./240", 0777 [pid 9239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9237] <... symlink resumed>) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 9239] <... prctl resumed>) = 0 [pid 9238] <... mmap resumed>) = 0x7f38e1b78000 [pid 9237] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9239] setpgid(0, 0 [pid 9238] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9237] <... futex resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9239] <... setpgid resumed>) = 0 [pid 9238] <... mprotect resumed>) = 0 [pid 9237] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 9239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9238] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9237] <... mmap resumed>) = 0x7f38e1b78000 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 9240 attached [pid 9239] <... openat resumed>) = 3 [pid 9237] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4998] close(3 [pid 9240] set_robust_list(0x7f38e1b989e0, 24 [pid 9239] write(3, "1000", 4 [pid 9238] <... clone resumed>, parent_tid=[9240], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9240 [pid 9237] <... mprotect resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 9240] <... set_robust_list resumed>) = 0 [pid 9238] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9237] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9240] memfd_create("syzkaller", 0 [pid 9238] <... futex resumed>) = 0 [pid 9240] <... memfd_create resumed>) = 3 [pid 9238] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9237] <... clone resumed>, parent_tid=[9241], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9241 [pid 9240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9237] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9240] <... mmap resumed>) = 0x7f38d9778000 [pid 9237] <... futex resumed>) = 0 [pid 9237] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9239] <... write resumed>) = 4 [pid 9239] close(3 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9242 [pid 9239] <... close resumed>) = 0 [pid 9239] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9239] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9242 attached [pid 9242] set_robust_list(0x555556b565e0, 24) = 0 [pid 9242] chdir("./240" [pid 9239] <... futex resumed>) = 0 [pid 9239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9242] <... chdir resumed>) = 0 [pid 9242] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9239] <... mmap resumed>) = 0x7f38e1b78000 [pid 9242] <... prctl resumed>) = 0 [pid 9239] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9242] setpgid(0, 0) = 0 [pid 9239] <... mprotect resumed>) = 0 [pid 9239] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 9243 attached ./strace-static-x86_64: Process 9241 attached ) = 3 [pid 9239] <... clone resumed>, parent_tid=[9243], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9243 [pid 9243] set_robust_list(0x7f38e1b989e0, 24 [pid 9239] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9243] <... set_robust_list resumed>) = 0 [pid 9239] <... futex resumed>) = 0 [pid 9243] memfd_create("syzkaller", 0 [pid 9239] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9243] <... memfd_create resumed>) = 3 [pid 9243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9241] set_robust_list(0x7f38e1b989e0, 24 [pid 9242] write(3, "1000", 4 [pid 9241] <... set_robust_list resumed>) = 0 [pid 9242] <... write resumed>) = 4 [pid 9241] memfd_create("syzkaller", 0 [pid 9242] close(3 [pid 9241] <... memfd_create resumed>) = 3 [pid 9242] <... close resumed>) = 0 [pid 9241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9242] symlink("/dev/binderfs", "./binderfs" [pid 9241] <... mmap resumed>) = 0x7f38d9778000 [pid 9242] <... symlink resumed>) = 0 [pid 9240] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9242] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9242] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9242] clone(child_stack=0x7f38e1b983f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9244], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9244 [pid 9242] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9242] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9244 attached [pid 9244] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9244] memfd_create("syzkaller", 0) = 3 [pid 9244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9241] <... write resumed>) = 4194304 [pid 9241] munmap(0x7f38d9778000, 4194304 [pid 9240] <... write resumed>) = 4194304 [pid 9240] munmap(0x7f38d9778000, 4194304 [pid 9241] <... munmap resumed>) = 0 [pid 9241] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9240] <... munmap resumed>) = 0 [pid 9241] <... openat resumed>) = 4 [pid 9241] ioctl(4, LOOP_SET_FD, 3 [pid 9240] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9240] ioctl(4, LOOP_SET_FD, 3 [pid 9241] <... ioctl resumed>) = 0 [pid 9241] close(3) = 0 [pid 9241] mkdir("./file0", 0777) = 0 [pid 9241] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9244] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 9240] <... ioctl resumed>) = 0 [pid 9240] close(3) = 0 [pid 9240] mkdir("./file0", 0777) = 0 [pid 9240] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9243] <... write resumed>) = 4194304 [pid 9243] munmap(0x7f38d9778000, 4194304 [pid 9244] <... write resumed>) = 4194304 [pid 9243] <... munmap resumed>) = 0 [pid 9243] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 247.529930][ T9240] loop1: detected capacity change from 0 to 8192 [ 247.529999][ T9241] loop5: detected capacity change from 0 to 8192 [ 247.557812][ T9241] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9243] ioctl(4, LOOP_SET_FD, 3 [pid 9244] munmap(0x7f38d9778000, 4194304) = 0 [pid 9244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9244] ioctl(4, LOOP_SET_FD, 3 [pid 9243] <... ioctl resumed>) = 0 [pid 9243] close(3) = 0 [pid 9243] mkdir("./file0", 0777) = 0 [pid 9243] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9244] <... ioctl resumed>) = 0 [pid 9244] close(3) = 0 [pid 9244] mkdir("./file0", 0777) = 0 [ 247.574343][ T9240] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 247.577666][ T9243] loop2: detected capacity change from 0 to 8192 [ 247.587766][ T9241] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 247.600012][ T9244] loop0: detected capacity change from 0 to 8192 [ 247.603783][ T9240] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 247.619163][ T9241] REISERFS (device loop5): using ordered data mode [ 247.621117][ T9244] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 247.626650][ T9241] reiserfs: using flush barriers [ 247.639162][ T9243] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 247.645155][ T9240] REISERFS (device loop1): using ordered data mode [ 247.657437][ T9243] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 247.663456][ T9241] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 247.688920][ T9244] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 247.689313][ T9240] reiserfs: using flush barriers [ 247.698455][ T9244] REISERFS (device loop0): using ordered data mode [ 247.705656][ T9241] REISERFS (device loop5): checking transaction log (loop5) [ 247.717020][ T9243] REISERFS (device loop2): using ordered data mode [ 247.717033][ T9243] reiserfs: using flush barriers [ 247.717811][ T9243] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 247.723680][ T9240] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 247.729096][ T9243] REISERFS (device loop2): checking transaction log (loop2) [ 247.761968][ T9244] reiserfs: using flush barriers [ 247.768804][ T9240] REISERFS (device loop1): checking transaction log (loop1) [ 247.774387][ T9241] REISERFS (device loop5): Using r5 hash to sort names [ 247.788047][ T9240] REISERFS (device loop1): Using r5 hash to sort names [ 247.789755][ T9244] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 247.795060][ T9240] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9244] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9240] <... mount resumed>) = 0 [pid 9240] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9241] <... mount resumed>) = 0 [pid 9241] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9241] chdir("./file0") = 0 [pid 9241] ioctl(4, LOOP_CLR_FD) = 0 [pid 9241] close(4 [pid 9240] <... openat resumed>) = 3 [pid 9240] chdir("./file0" [pid 9241] <... close resumed>) = 0 [pid 9241] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 247.812330][ T9241] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 247.823788][ T9240] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 247.837569][ T9244] REISERFS (device loop0): checking transaction log (loop0) [ 247.846253][ T9243] REISERFS (device loop2): Using r5 hash to sort names [ 247.854170][ T9241] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 247.859946][ T9243] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9241] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9243] <... mount resumed>) = 0 [pid 9240] <... chdir resumed>) = 0 [pid 9237] <... futex resumed>) = 0 [pid 9240] ioctl(4, LOOP_CLR_FD [pid 9237] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9240] <... ioctl resumed>) = 0 [pid 9237] <... futex resumed>) = 1 [pid 9240] close(4 [pid 9237] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9240] <... close resumed>) = 0 [pid 9240] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9238] <... futex resumed>) = 0 [pid 9240] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9238] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9238] <... futex resumed>) = 0 [pid 9240] mkdir("./file1", 000 [pid 9238] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9240] <... mkdir resumed>) = 0 [pid 9240] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9238] <... futex resumed>) = 0 [pid 9240] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9238] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9238] <... futex resumed>) = 0 [pid 9240] mkdir("./bus", 000 [pid 9238] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9240] <... mkdir resumed>) = 0 [pid 9240] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9238] <... futex resumed>) = 0 [pid 9240] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9238] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9243] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9238] <... futex resumed>) = 0 [pid 9243] <... openat resumed>) = 3 [pid 9240] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9238] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9243] chdir("./file0") = 0 [pid 9241] <... futex resumed>) = 0 [pid 9241] mkdir("./file1", 000) = 0 [pid 9241] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9243] ioctl(4, LOOP_CLR_FD [pid 9241] <... futex resumed>) = 1 [pid 9237] <... futex resumed>) = 0 [pid 9243] <... ioctl resumed>) = 0 [ 247.881968][ T9243] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 247.890254][ T9244] REISERFS (device loop0): Using r5 hash to sort names [ 247.898450][ T9240] overlayfs: upper fs needs to support d_type. [ 247.904744][ T9240] overlayfs: upper fs does not support tmpfile. [ 247.914145][ T9240] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9241] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9243] close(4 [pid 9237] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9243] <... close resumed>) = 0 [pid 9237] <... futex resumed>) = 1 [pid 9243] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9237] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9243] <... futex resumed>) = 1 [pid 9243] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9238] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9238] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9238] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9238] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[9249], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9249 [pid 9238] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9241] <... futex resumed>) = 0 [pid 9239] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9249 attached [pid 9241] mkdir("./bus", 000 [pid 9239] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9238] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9249] set_robust_list(0x7f38d9b779e0, 24 [pid 9241] <... mkdir resumed>) = 0 [pid 9239] <... futex resumed>) = 1 [pid 9249] <... set_robust_list resumed>) = 0 [pid 9249] mkdir(".", 0777 [pid 9243] <... futex resumed>) = 0 [pid 9241] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9240] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9239] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9244] <... mount resumed>) = 0 [pid 9249] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9244] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9243] mkdir("./file1", 000 [pid 9241] <... futex resumed>) = 1 [pid 9240] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9237] <... futex resumed>) = 0 [pid 9249] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9244] <... openat resumed>) = 3 [pid 9243] <... mkdir resumed>) = 0 [pid 9241] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9240] <... futex resumed>) = 0 [pid 9237] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9243] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9240] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9237] <... futex resumed>) = 0 [pid 9243] <... futex resumed>) = 1 [pid 9239] <... futex resumed>) = 0 [pid 9237] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9243] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9239] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9239] <... futex resumed>) = 0 [pid 9243] mkdir("./bus", 000 [pid 9239] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9243] <... mkdir resumed>) = 0 [pid 9243] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9239] <... futex resumed>) = 0 [pid 9243] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9239] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9239] <... futex resumed>) = 0 [pid 9243] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9239] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9244] chdir("./file0") = 0 [pid 9244] ioctl(4, LOOP_CLR_FD) = 0 [pid 9244] close(4) = 0 [ 247.930785][ T9240] overlayfs: failed to resolve './file0': -2 [ 247.931559][ T9244] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 247.950445][ T9244] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 247.965551][ T9241] overlayfs: upper fs needs to support d_type. [ 247.972359][ T9243] overlayfs: upper fs needs to support d_type. [pid 9249] <... mount resumed>) = 0 [pid 9244] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9244] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9249] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9242] <... futex resumed>) = 0 [pid 9249] <... openat resumed>) = 4 [pid 9242] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9249] chdir("." [pid 9244] <... futex resumed>) = 0 [pid 9242] <... futex resumed>) = 1 [pid 9249] <... chdir resumed>) = 0 [pid 9244] mkdir("./file1", 000 [pid 9242] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9249] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9244] <... mkdir resumed>) = 0 [pid 9249] <... futex resumed>) = 1 [pid 9244] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9238] <... futex resumed>) = 0 [pid 9244] <... futex resumed>) = 1 [pid 9249] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9242] <... futex resumed>) = 0 [pid 9238] exit_group(0 [pid 9249] <... futex resumed>) = ? [pid 9244] mkdir("./bus", 000 [pid 9242] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9240] <... futex resumed>) = ? [pid 9238] <... exit_group resumed>) = ? [pid 9249] +++ exited with 0 +++ [pid 9244] <... mkdir resumed>) = 0 [pid 9242] <... futex resumed>) = 0 [pid 9240] +++ exited with 0 +++ [pid 9244] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9244] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9238] +++ exited with 0 +++ [pid 9242] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9238, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 9242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9242] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... restart_syscall resumed>) = 0 [pid 9244] <... futex resumed>) = 0 [pid 9242] <... futex resumed>) = 1 [pid 9244] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9242] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9237] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9237] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./240", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9237] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9237] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] openat(AT_FDCWD, "./240", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9237] <... mmap resumed>) = 0x7f38d9b57000 [pid 4999] <... openat resumed>) = 3 [pid 9237] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4999] fstat(3, [pid 9239] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9237] <... mprotect resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9239] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [ 247.979017][ T9241] overlayfs: upper fs does not support tmpfile. [ 247.979574][ T9243] overlayfs: upper fs does not support tmpfile. [ 247.985969][ T9241] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 247.993659][ T9243] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 248.017518][ T9244] overlayfs: upper fs needs to support d_type. [ 248.023718][ T9244] overlayfs: upper fs does not support tmpfile. [pid 9237] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 4999] getdents64(3, [pid 9239] <... futex resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9237] <... clone resumed>, parent_tid=[9250], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9250 [pid 4999] umount2("./240/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9239] <... mmap resumed>) = 0x7f38d9b57000 [pid 9237] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9239] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9237] <... futex resumed>) = 0 [pid 4999] lstat("./240/binderfs", [pid 9239] <... mprotect resumed>) = 0 [pid 9237] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9239] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 4999] unlink("./240/binderfs") = 0 [pid 9239] <... clone resumed>, parent_tid=[9251], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9251 [pid 4999] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9251 attached ./strace-static-x86_64: Process 9250 attached [pid 9239] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9251] set_robust_list(0x7f38d9b779e0, 24 [pid 9250] set_robust_list(0x7f38d9b779e0, 24 [pid 9239] <... futex resumed>) = 0 [pid 9239] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9251] <... set_robust_list resumed>) = 0 [pid 9250] <... set_robust_list resumed>) = 0 [pid 9250] mkdir(".", 0777 [pid 9251] mkdir(".", 0777 [pid 9241] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9251] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9250] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9241] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9251] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9250] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "" [pid 9242] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9241] <... futex resumed>) = 0 [pid 9242] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9241] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9242] <... futex resumed>) = 0 [pid 9242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9251] <... mount resumed>) = 0 [pid 9250] <... mount resumed>) = 0 [pid 9242] <... mmap resumed>) = 0x7f38d9b57000 [pid 9250] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9242] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9250] <... openat resumed>) = 4 [pid 9242] <... mprotect resumed>) = 0 [pid 9242] clone(child_stack=0x7f38d9b773f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 9250] chdir("." [pid 9251] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9250] <... chdir resumed>) = 0 [pid 9250] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9242] <... clone resumed>, parent_tid=[9252], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9252 [pid 9242] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9251] <... openat resumed>) = 4 [pid 9250] <... futex resumed>) = 1 [pid 9237] <... futex resumed>) = 0 [pid 9250] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9242] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9251] chdir("." [pid 9237] exit_group(0 [pid 9250] <... futex resumed>) = ? [pid 9241] <... futex resumed>) = ? [pid 9237] <... exit_group resumed>) = ? [pid 9241] +++ exited with 0 +++ [pid 9250] +++ exited with 0 +++ [pid 9237] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9237, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 9251] <... chdir resumed>) = 0 [pid 5003] <... restart_syscall resumed>) = 0 [pid 9251] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./240", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9251] <... futex resumed>) = 1 [pid 9239] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9251] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] openat(AT_FDCWD, "./240", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./240/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9252 attached ) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./240/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./240/binderfs" [pid 9252] set_robust_list(0x7f38d9b779e0, 24 [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9252] <... set_robust_list resumed>) = 0 [pid 9252] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9252] mount(NULL, ".", 0x200001c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [pid 9252] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9252] chdir(".") = 0 [pid 9252] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9242] <... futex resumed>) = 0 [pid 9252] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9244] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9243] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] <... umount2 resumed>) = 0 [pid 9244] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9243] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9242] exit_group(0 [pid 9239] exit_group(0 [pid 9252] <... futex resumed>) = ? [pid 9251] <... futex resumed>) = ? [pid 9244] <... futex resumed>) = ? [pid 9243] <... futex resumed>) = ? [pid 9242] <... exit_group resumed>) = ? [pid 9239] <... exit_group resumed>) = ? [pid 9252] +++ exited with 0 +++ [pid 9251] +++ exited with 0 +++ [pid 9244] +++ exited with 0 +++ [pid 9243] +++ exited with 0 +++ [ 248.032765][ T9241] overlayfs: failed to resolve './file0': -2 [ 248.048539][ T9244] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 248.055113][ T9243] overlayfs: failed to resolve './file0': -2 [ 248.056843][ T9244] overlayfs: failed to resolve './file0': -2 [pid 4999] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./240/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9242] +++ exited with 0 +++ [pid 4999] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./240/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9242, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4999] <... openat resumed>) = 4 [pid 4998] umount2("./240", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9239] +++ exited with 0 +++ [pid 4999] fstat(4, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] openat(AT_FDCWD, "./240", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9239, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4999] getdents64(4, [pid 4998] <... openat resumed>) = 3 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] fstat(3, [pid 5000] <... restart_syscall resumed>) = 0 [pid 4999] getdents64(4, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(3, [pid 4999] close(4 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./241", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... close resumed>) = 0 [pid 4998] umount2("./240/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] rmdir("./240/file0" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./241", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... rmdir resumed>) = 0 [pid 4998] lstat("./240/binderfs", [pid 4999] getdents64(3, [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] unlink("./240/binderfs" [pid 4999] close(3 [pid 4998] <... unlink resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4998] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] rmdir("./240") = 0 [pid 4999] mkdir("./241", 0777 [pid 5000] <... openat resumed>) = 3 [pid 4999] <... mkdir resumed>) = 0 [pid 5000] fstat(3, [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... openat resumed>) = 3 [pid 5000] getdents64(3, [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] umount2("./241/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] close(3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9253 [pid 5000] lstat("./241/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./241/binderfs") = 0 [pid 5000] umount2("./241/file0", MNT_DETACH|UMOUN